CN105637670A - 一种电动车专用的电池接点的锁固状态确认手段 - Google Patents

一种电动车专用的电池接点的锁固状态确认手段 Download PDF

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CN105637670A
CN105637670A CN201380080280.5A CN201380080280A CN105637670A CN 105637670 A CN105637670 A CN 105637670A CN 201380080280 A CN201380080280 A CN 201380080280A CN 105637670 A CN105637670 A CN 105637670A
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electrode
contact
locking condition
electric car
bolts
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杨安陶
陈铮铮
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11F. Likai green mobile Polytron Technologies Inc
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Aleees Eco Ark Co Ltd
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Abstract

一种电动车专用的电池接点的锁固状态确认手段，该手段是利用一种包含可膨胀螺尾结构的电池接点螺丝，以及利用测量电池管理单元的电压检测接点所测得的信号的一致性，以进行一电池接点的锁固状态的判断，进而在电池接点可能失去锁固状态的时，即可回报用户进行检查作业，以避免电池接点在松脱时产生失去动力或于电池箱内部产生电弧的危险。

Description

一种电动车专用的电池接点的锁固状态确认手段 技术领域
本发明有关于一种应用于电动车的电池箱内的电池模块接点的锁固状态确认的装置， 以及锁固状态确认的方法， 更切确的说， 是一种能用于电池管理单元的电压传感器或电流 传感器的接点， 作为一种用能同时感测锁固状态的装置， 于行车间能确保电池箱内的大量 电池接点的锁固状态，并在任何一个电池模块的接点开始松脱之前便有效的警示以及指示 使用者必须检查的接点； 本发明主要能应用于使用大量电池模块的大型电动车辆， 如电动 巴士、 电动货车。 背景技术
大型电动车辆组电池组经常需要使用数以百计的电芯； 以并联或串联方式连接。 大多 的装配方式无法准确的锁紧每个接点， 导致此类电池组一直存在松脱的风险。 当电动车辆 行驶在路况较差的路线时， 额外的震动更加速了电池接点松脱的速度。若接点在运行中脱 落或接触不良， 极有可能造成系统关闭甚至烧毁。
现今的电极连接方式并无法显示该电极是否确实锁紧， 因此当电池组接触不良时， 人 员无法迅速得知故障的部位， 因而大幅增加查修时间。 由于电动车辆只能借此电池组来提 供动力， 因此电池组的可靠度便成为影响电动车辆是否能可靠运行的一大因素。 发明内容
基于公知电动车的电池箱内的电池模块的连接手段缺乏组装效率、且无法确认各电芯 的接点的锁固状态，因此本发明主要的目的为：提供一种可确认电极确实锁固的电极设计。
本发明的次要目的为提供一种警示手段， 可在电极有松脱的风险时发出警示， 以便维 修人员检修。
本发明的另一目的为提供一种辨别手段， 可使维修人员轻易辨别有松脱风险的电极。 为达上述目的， 本发明的一较广义实施方式为， 提供一种电动车的电极接点的锁固状 态确认机构， 其包含： 一电极螺栓， 锁固于一电极之上， 用于导致一电流导体与该电极接 触； 一感测螺栓， 锁固于该电极螺栓之上， 用于导致一感测接点与该电极螺栓接触， 其中， 该感测螺栓锁入时， 会导致该电极螺栓的形变， 该电极螺栓的形变会产生一阻力以固定该 电极螺栓； 以及一感测单元， 用以感测该感测接点与该电极螺栓的接触状态。 根据本发明的构想， 该感测螺栓通过一插销导致该电极螺栓发生形变。 根据本发明的构想， 该电极螺栓与该插销的接触面为一锥形面。
根据本发明的构想， 该插销包含有一螺牙。
根据本发明的构想，该感测单元通过该感测接点回传的电压信号的稳定性来判定该感 测接点与该电极螺栓的接触状态。
根据本发明的构想， 该感测螺栓为一绝缘材质。
根据本发明的构想， 该感测螺栓与该感测接点之间另包含一绝缘垫片。
根据本发明的构想， 该感测螺栓与该感测接点之间另包含一安全索。
根据本发明的构想， 该感测单元为电池保护板。
为达上述目的， 本发明的另一较佳实施方式为， 提供一种电动车的电极接点的锁固状 态确认机构， 其包含： 一电极螺栓， 用于锁固一电流导体至一电池的极点， 该电极螺栓的 头部设有一内螺牙， 该电极螺栓的螺杆尾端设有一膨胀段； 一传感器螺栓， 用于锁固一电 压传感器的接点至该电极螺栓的内螺牙， 该传感器螺栓于锁入同时推动一插销， 以撑开该 电极螺栓的膨胀段， 使该电极螺栓与该电池的极点成为一已确认锁固状态； 以及一控制单 元， 用于接收该电压传感器所传回的电压信息， 并利用该电压信息的信号稳定性进行已确 认锁固状态的判断。
根据本发明的构想， 该控制单元于该电压信息的信号为不稳定的状态时， 传送一警示 信号以及该失去已确认锁固状态的电极的辨识编号至一行车控制单元。
根据本发明的构想， 该传感器螺栓与该电压传感器的接点的接触面为不导电材料。 根据本发明的构想， 该传感器螺栓为不导电。
根据本发明的构想， 该传感器螺栓与该插销为一相联的结构。
根据本发明的构想， 该传感器另包含一加速规用以感测车身振动状态。
根据本发明的构想， 该传感器另包含一陀螺仪用以感测车身动态。 附图说明
图 1是本发明第一实施例的剖视图。
图 2是本发明第一实施例的电极螺栓剖视图。
图 3是本发明第一实施例的爆炸视图。
其中， 附图标记说明如下：
101 电极 102 电极螺栓
103插销
104感测接点
105 感测螺栓
106 中心孔
107 膨胀切口
108 电极螺牙
110 膨胀段
111 锥度
112 内孔
113 内螺牙
114 导体
115 外螺牙。 具体实施方式
请参阅图 1至图 3， 其为本发明的第一较佳实施例。 本实施例为一种可确认锁固状态 的电池接头结构，其中包含：一电极螺栓 102、一感测螺栓 105、一插销 103、一导体 114、 一感测接点 104、 及一电极 101 ; 其中， 该电极螺栓 102包含有一中心孔 106， 该中心孔 包含三个段落，分别是一用以与该感测螺栓 105 锁固的内螺牙 113、用以容纳该插销 103 的内孔 112、 及用该插销 103 提供一扩张力量的锥度 111。
此电池接头结构凭借使用感测螺栓 105 对插销 103 所施加的压力撑开电极螺栓 102 的膨胀段 110 以确保电极螺栓 102 为一确认锁固 （Positive locking) 的状态。当该感 测螺栓 105 锁入内螺牙 113 时， 插销 103 会被感测螺栓 105 推动， 且插销 103 的末 端会与锥度 111 接触并产生一扩张力道将膨胀段 110 撑开； 膨胀段 110 的扩张力道可 确保电极螺栓 102 与电极螺牙 108 紧密接合。
此确认锁固的设计凭借感测螺栓 105 导致膨胀段 110 的形变确保电极螺栓 102 的锁固状态。因此感测螺栓 105 的锁固会导致电极螺栓 102 的锁固。若感测螺栓 105 松 脱， 感测接点 104 与电极螺栓 102 会因车辆震动而分离， 造成电压信号的变化。
此确认锁固的结构另包含一用以检测锁固结构的运算程序，借此检测电压信号的稳定 性以得知电池接点的锁固状态。 由于电池的输出电压极为稳定， 因此当电压信号因车身震 动而产生间断时， 系统可断定该接头为可能松脱的状态。
因此， 当感测螺栓 105 未确实锁紧而造成感测接点 104 与电极螺栓 102 接触不良 时， 间断的电压信号可使系统得知该接点有可能松脱， 并将该接点标示为需检修， 使维修 人员能在电池接点松脱前避免其发生。
此检测锁固结构的运算程序应包含一运算单元， 用以持续检查电压信号是否连续； 更 佳的， 此运算单元另包含一加速规或陀螺仪， 若电压信号间断的频率与车身振动的频率一 致， 则可更准确的判定电池接点即将松脱。借此检查电压间断频率与车身振动频率的一致 性， 可排除因电磁干扰所造成的信号间断导致的误判。此实施例还可使用电流信号与电压 信号做比较，若电流信号一致但电压信号间断，系统也可判定感测接点有松脱的状况发生。
此一实施例另包含一较佳的感测螺栓设计，其中该感测螺栓为一绝缘材质。在锁固时， 感测接点只能直接由电极螺栓取得电压信号； 借此确保当感测螺栓松脱时， 感测接点无法 经由感测螺栓取得电极螺栓的电压信号， 可更方便系统判断感测螺栓的松脱。 该感测螺栓 也可使用涂布绝缘涂层的金属材质螺栓。
为要简化组装程序，感测螺栓及插销可采一体化设计，也可在感测螺栓上设置一卡槽， 用以固接插销； 若感测螺栓与插销采用卡槽固定， 在装配前可另外进行压接， 以避免松脱 的可能性。
若该插销与该感测螺栓采用分离式设计， 较佳的， 该插销可设置一螺牙以与该电极螺 栓锁固；在组装时，可先将该插销锁入该电极螺栓中，再将该感测螺栓锁入该电极螺栓中。
较佳的， 感测接点与感测螺栓之间的接触面可涂布不导电涂层； 该不导电涂层也可以 一绝缘垫片取代。
为避免感测螺栓松脱时掉入电池组造成后续问题，感测螺栓与感测接点可以一安全索 连接， 以确保感测螺栓在松脱时不会掉入电池组中。
此发明所接露的概念为一可确认锁固状态的结构， 其中的逻辑为：
1. 若系统可通过该感测接点 104 取得一稳定的电压信号，该感测螺栓 105 及该插销 103 必然存在于该中心孔 106 之中； 因此， 该插销 103 将会挤压该锥度 111， 造成该膨 胀段 110 的形变， 进而导致该电极螺栓 102 与该电极螺牙 108 相互挤压并产生极大阻 力， 因此可确保该电极螺栓 102 的确认锁固状态 （Positive locking)。
2. 若系统得到间断的电压信号，则该感测螺栓 105 与该插销 103 依然位于该中心孔 106 之中， 但该插销 103 已经不与该锥度 111 接触， 造成该膨胀段 110 回弹至原始形 状， 并导致该电极螺栓 102 失去确认锁固状态， 且进入可能松脱状态。 在理想状态时， 当系统检测到任何接点有松脱的可能性时， 系统会通知用户去检查该 接点。 当车辆回到维修站时， 电极螺栓与感测螺栓依然位于电极螺牙与内螺牙中， 维修人 员可通过电池的编号辨识出有可能松脱的接点。 因此， 本实施例可大幅减少维修的时间， 且可避免行进中接点脱落所造成的损害及故障。

Claims (16)

  1. 权利要求
    1.一种电动车的电极接点的锁固状态确认机构， 其包含：
    一电极螺栓， 锁固于一电极之上， 用于导致一电流导体与该电极接触； 一感测螺栓， 锁固于该电极螺栓之上， 用于导致一感测接点与该电极螺栓接触， 其中， 该感测螺栓锁入时， 会导致该电极螺栓的形变， 该电极螺栓的形变会产生一阻力以 固定该电极螺栓； 以及
    一感测单元， 用以感测该感测接点与该电极螺栓的接触状态。
  2. 2.如权利要求 1所述的电动车的电极接点的锁固状态确认机构， 其中， 该感测螺栓通 过一插销导致该电极螺栓发生形变。
  3. 3.如权利要求 2所述的电动车的电极接点的锁固状态确认机构， 其中， 该电极螺栓与 该插销的接触面为一锥形面。
  4. 4.如权利要求 2所述的电动车的电极接点的锁固状态确认机构， 其中， 该插销包含有 一螺牙。
  5. 5.如权利要求 1所述的电动车的电极接点的锁固状态确认机构， 其中， 该感测单元通 过该感测接点回传的电压信号的稳定性来判定该感测接点与该电极螺栓的接触状态。
  6. 6.如权利要求 1所述的电动车的电极接点的锁固状态确认机构， 其中， 该感测螺栓为 一绝缘材质。
  7. 7.如权利要求 1所述的电动车的电极接点的锁固状态确认机构， 其中， 该感测螺栓与 该感测接点之间另包含一绝缘垫片。
  8. 8.如权利要求 1所述的电动车的电极接点的锁固状态确认机构， 其中， 该感测螺栓与 该感测接点之间另包含一安全索。
  9. 9.如权利要求 1所述的电动车的电极接点的锁固状态确认机构， 其中， 该感测单元为 电池保护板。
  10. 10.—种电动车的电极接点的锁固状态确认机构， 其包含：
    一电极螺栓， 用于锁固一电流导体至一电池的极点， 该电极螺栓的头部设有一内 螺牙， 该电极螺栓的螺杆尾端设有一膨胀段；
    一传感器螺栓， 用于锁固一电压传感器的接点至该电极螺栓的内螺牙， 该传感器 螺栓于锁入同时推动一插销， 以撑开该电极螺栓的膨胀段， 使该电极螺栓与该电池的极点 成为一已确认锁固状态； 以及
    一控制单元， 用于接收该电压传感器所传回的电压信息， 并利用该电压信息的信 号稳定性进行已确认锁固状态的判断。
  11. 11.如权利要求 10所述的电动车的电极接点的锁固状态确认机构， 其中， 该控制单元 于该电压信息的信号为不稳定的状态时，传送一警示信号以及该失去已确认锁固状态的电 极的辨识编号至一行车控制单元。
  12. 12.如权利要求 10所述的电动车的电极接点的锁固状态确认机构， 其中， 该传感器螺 栓与该电压传感器的接点的接触面为不导电材料。
  13. 13.如权利要求 10所述的电动车的电极接点的锁固状态确认机构， 其中， 该传感器螺 栓为不导电。
  14. 14.如权利要求 10所述的电动车的电极接点的锁固状态确认机构， 其中， 该传感器螺 栓与该插销为一相联的结构。
  15. 15.如权利要求 10所述的电动车的电极接点的锁固状态确认机构， 其中， 该传感器另 包含一加速规用以感测车身振动状态。
  16. 16.如权利要求 10所述的电动车的电极接点的锁固状态确认机构， 其中， 该传感器另 包含一陀螺仪用以感测车身动态。
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