WO2019047253A1 - 一种防水型密封电池包及防水方法 - Google Patents

一种防水型密封电池包及防水方法 Download PDF

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Publication number
WO2019047253A1
WO2019047253A1 PCT/CN2017/101772 CN2017101772W WO2019047253A1 WO 2019047253 A1 WO2019047253 A1 WO 2019047253A1 CN 2017101772 W CN2017101772 W CN 2017101772W WO 2019047253 A1 WO2019047253 A1 WO 2019047253A1
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battery
battery pack
aluminum alloy
chamber
lead wire
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PCT/CN2017/101772
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English (en)
French (fr)
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周峰
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江苏公爵新能源汽车有限公司
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Publication of WO2019047253A1 publication Critical patent/WO2019047253A1/zh

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    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • 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
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/222—Inorganic material
    • H01M50/224—Metals
    • 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

Definitions

  • the invention relates to the technical field of battery waterproofing, in particular to a waterproof sealed battery pack and a waterproof method.
  • the power battery pack is a core of electric vehicles, and the waterproof sealing of the battery pack directly affects the safety of the electric vehicle.
  • a plurality of single cells or supercapacitors are connected in series and in parallel, and then a plurality of modules are connected in series and in parallel to form a battery pack of a certain voltage and capacity, and a battery pack is formed inside a sealed box.
  • the battery pack in the battery pack generates heat during charging and discharging. If the heat is not dissipated in time, it will affect the use of the battery pack, shorten the life of the battery pack, and even cause a safety accident.
  • the electric vehicle is at a low temperature. Under the environment, due to poor low temperature performance of the battery, the electric vehicle can not be used normally or the driving range is short, especially at low temperature, which directly affects the battery life. Generally, heat dissipation and insulation are a contradiction. Therefore, improving the operating temperature environment of the battery pack is an important step that the manufacturer must solve to improve the quality of the battery pack and ensure the safety and reliability of the electric vehicle.
  • the invention relates to battery waterproof technology, and in particular to a waterproof sealed battery pack.
  • An object of the present invention is to provide a waterproof sealed battery pack which is simple in installation, low in technical difficulty, and reliable in sealing, to solve the problems raised in the above background art.
  • a waterproof sealed battery pack comprising a battery pack body, the battery pack body is provided with an aluminum alloy outer wall, and the outer wall of the aluminum alloy is provided with a battery cavity and a battery cavity a battery string is arranged inside, a battery is arranged on the battery string, and one end of the outer wall of the aluminum alloy is provided with an electrode lead wire, and a waterproof ring is arranged at an exit of the upper electrode lead wire of the aluminum alloy outer wall, and an outer side of the outer wall of the aluminum alloy With connecting groove, the outer side of the outer wall of the aluminum alloy is connected on the other side. Reinforcing ribs.
  • the interior of the battery chamber is in a figure-eight shape
  • the battery chambers are spaced apart from each other, and both ends of the battery chamber are provided with a sealing material.
  • the battery string is provided with a battery, and the positive pole of the battery is connected to the negative pole, and the negative ends of the two battery strings in the same battery chamber are provided with connecting reeds.
  • the battery string and the battery cavity cooperate with each other.
  • the connecting groove and the connecting rib are in the shape of an isosceles ladder, and the connecting groove and the connecting rib cooperate with each other.
  • the electrode lead wire is a positive electrode lead wire, a negative electrode lead wire, and a positive electrode lead wire and a negative electrode lead wire are provided with a PVC insulating layer.
  • the waterproof sealed battery pack has a waterproof method: the following steps are included:
  • A, the positive and negative electrodes of the battery are connected to form a battery string;
  • a set of battery strings is installed in the battery cavity, and a negative end of a group of battery strings in the battery cavity is connected by a connection reed;
  • Sealing devices are provided at both ends of the battery chamber to seal the battery chamber.
  • the outer wall structure of the aluminum alloy can effectively prevent the battery pack from being broken down, and the cavity structure matched with the outer shape of the battery can fix the battery string.
  • the invention has the advantages of simple installation, low technical difficulty and reliable sealing.
  • FIG. 1 is a schematic view showing the overall structure of a battery pack body of the present invention
  • FIG. 2 is a schematic view showing the structure of a battery cavity of the present invention.
  • FIG. 3 is a schematic structural view of a battery installation of the present invention.
  • FIG. 4 is a schematic view showing the outer structure of the battery pack of the present invention.
  • a waterproof sealed battery pack comprising a battery pack body 1 , the battery pack body 1 is provided with an aluminum alloy outer wall 8 , an aluminum alloy A battery chamber 2 is disposed inside the outer wall 8.
  • the battery compartment 2 is provided with a battery string 4, and the battery string 4 and the battery chamber 2 are matched with each other.
  • the interior of the battery chamber 2 is formed in a figure-eight shape, and the battery chambers 2 are spaced apart from each other.
  • the two ends of the cavity 2 are provided with a sealing material, so that the inside of the battery pack body 1 is in a sealed state, and the battery 5 is provided on the battery string 4.
  • the one end of the aluminum alloy outer wall 8 is provided with an electrode lead wire 3, and the electrode lead wire 3 is a positive electrode.
  • the lead wire, the negative lead wire, the positive electrode lead wire and the negative electrode lead wire are provided with a PVC insulating layer, which is waterproofed, and a waterproof ring is arranged at the outlet of the electrode lead wire on the aluminum alloy outer wall 8 , and the outer side of the aluminum alloy outer wall 8 is provided.
  • the connecting groove 6 is provided, and the other side of the outer side of the aluminum alloy outer wall 8 is provided with a connecting rib 7, and the connecting groove 6 and the connecting rib 7 are in the shape of an isosceles ladder, and the connecting groove 6 and the connecting rib 7 cooperate with each other.
  • a battery 5 is disposed on the battery string 4.
  • the positive pole of the battery 5 is connected to the negative pole, and the negative ends of the two battery strings 4 in the same battery chamber 2 inside the battery chamber 2 are provided with connecting reeds.
  • the device connects the battery boards to each other through the connecting groove 6 and the connecting ribs 7.
  • the structure of the aluminum alloy outer wall 8 can effectively prevent the battery pack from being broken down, and the battery cavity 2 structure matched with the external dimensions of the battery can fix the battery string. Simple installation, low technical difficulty and reliable sealing.
  • a waterproof sealed battery pack waterproofing method thereof comprises the following steps:
  • the positive electrode of the battery 5 is connected to the negative electrode to form a battery string 4;
  • a set of battery strings 4 are mounted in the battery chamber 2, and a set of battery strings 4 in the battery chamber 2 are negative. Extremely connected by a connecting reed;
  • Sealing devices are provided at both ends of the battery chamber 2 to seal the battery chamber 2.
  • the outer wall structure of the aluminum alloy can effectively prevent the battery pack from being broken down, and the cavity structure matched with the outer shape of the battery can fix the battery string.
  • the invention has the advantages of simple installation, low technical difficulty and reliable sealing.

Abstract

一种防水型密封电池包及防水方法,包括电池包本体(1)，在电池包本体(1)上设有电池腔(2)、电极引出线(3)、电池串(4)、电池(5)、连接凹槽(6)、铝合金外壁(8)，电池包本体(1)采用铝合金材料一体化成型设计，在电池腔(2)的内部安装有电池串(4)，电池串(4)的正极与负极连接，一个电池腔(2)的内部安装两组电池串(4)，同一个电池腔(2)内部的两组电池串(4)的负极端采用连接簧片进行导通，在电池包的两端设有密封材料，将电池包密封处理，在电池包的两端外侧设有连接凹槽(6)与连接凸筋(7)，连接凹槽(6)与连接凸筋(7)相互配合，通过连接凹槽(6)与连接凸筋(7)将电池板相互连接，铝合金外壁结构可有效防止电池包被击穿，与电池外形尺寸配合的空腔结构可固定电池串，本申请安装简单，技术难度低、密封性可靠。

Description

一种防水型密封电池包及防水方法 技术领域
本发明涉及电池防水技术领域，具体为一种防水型密封电池包及防水方法。
背景技术
动力电池包是电动汽车的一大核心，电池包的防水密封性直接影响到电动汽车的使用安全。其根据电动车负载要求，由多个单体电池或超级电容器串并联组成模块，再由多个模块串并联组成一定电压和容量的电池组，放在一个密封的箱体内部形成电池包。
电池包内电池组在充放电过程中会产生热量，这些热量如果不能及时散发的话，轻则会影响电池组的使用，缩短电池组的寿命，重则甚至会发生安全事故，当电动汽车在低温环境下使用，因电池的低温性能差，导致电动车不能正常使用或行驶里程短，尤其是在低温下充电，直接影响电池的寿命。通常散热和绝缘是一对矛盾，所以改善电池组的使用温度环境，是厂商提高电池组产品质量，确保电动车安全可靠所必须要解决的重要环节。
目前，很多厂商都是在连接端口处采用防水胶进行防水处理。
本发明与电池防水技术有关，特别是关于一种防水型密封电池包。
发明内容
本实发明的目的在于提供一种安装简单，技术难度低、密封性可靠的防水型密封电池包，以解决上述背景技术中提出的问题。
为实现上述目的，本发明提供如下技术方案：一种防水型密封电池包,包括电池包本体，所述电池包本体上设有铝合金外壁，所述铝合金外壁内部设有电池腔，电池腔的内部设有电池串，电池串上设有电池，所述铝合金外壁的一端设有电极引出线，铝合金外壁上电极引出线的出口处设有防水圈，所述铝合金外壁的外侧一边设有连接凹槽，铝合金外壁的外侧另一边设有连接 凸筋。
优选的，所述电池腔的内部成8字型，电池腔之间相互间隔开，所述电池腔的两端设有密封材料。
优选的，所述电池串上设有电池，电池的正极与负极相连，所述电池腔内部同一个电池腔内的两个电池串的负极端设有连接簧片。
优选的，所述电池串与电池腔相互配合。
优选的，所述连接凹槽与连接凸筋成等腰梯形状，所述连接凹槽与连接凸筋相互配合。
优选的，所述电极引出线为正极引出线、负极引出线，正极引出线、负极引出线上设有PVC绝缘层。
该防水型密封电池包其防水方法：包括以下步骤：
A、将电池的正极与负极相连，形成电池串；
B、将一组电池串安装到电池腔中，电池腔中的一组电池串的负极端采用连接簧片连接导通；
C、将相邻的两个电池腔中的电池串之间通过连接簧片连接导通，在电池包本体的一端引出电极引线；
D、将电池腔的两端设有密封装置，将电池腔进行密封处理。
与现有技术相比，本发明的有益效果是：
铝合金外壁结构可有效防止电池包被击穿，与电池外形尺寸配合的空腔结构可固定电池串，本发明的安装简单，技术难度低、密封性可靠。
附图说明
图1为本发明的电池包本体整体结构示意图；
图2为本发明的电池空腔结构示意图；
图3为本发明电池安装的结构示意图；
图4为本发明的电池包外侧连接结构示意图。
图中：1、电池包本体；2、电池腔；3、电极引出线；4、电池串；5、电池；6、连接凹槽；7、连接凸筋，8、铝合金外壁。
具体实施方式
下面将结合本发明实施例中的附图，对本发明施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1、图2、图3或图4，本发明提供一种技术方案：一种防水型密封电池包,包括电池包本体1，电池包本体1上设有铝合金外壁8，铝合金外壁8内部设有电池腔2，电池腔2的内部设有电池串4，电池串4与电池腔2相互配合，电池腔2的内部成8字型，电池腔2之间相互间隔开，电池腔2的两端设有密封材料，使电池包本体1的内部处于密封状态，在电池串4上设有电池5，铝合金外壁8的一端设有电极引出线3，电极引出线3为正极引出线、负极引出线，正极引出线、负极引出线上设有PVC绝缘层，做好防水处理，在铝合金外壁8上电极引出线的出口处设有防水圈，铝合金外壁8的外侧一边设有连接凹槽6，铝合金外壁8的外侧另一边设有连接凸筋7，连接凹槽6与连接凸筋7成等腰梯形状，连接凹槽6与连接凸筋7相互配合。
电池串4上设有电池5，电池5的正极与负极相连，电池腔2内部同一个电池腔2内的两个电池串4的负极端设有连接簧片。
本装置通过连接凹槽6与连接凸筋7将电池板相互连接，铝合金外壁8结构可有效防止电池包被击穿，与电池外形尺寸配合的电池腔2结构可固定电池串，本发明的安装简单，技术难度低、密封性可靠。
一种防水型密封电池包其防水方法：包括以下步骤：
A、将电池5的正极与负极相连，形成电池串4；
B、将一组电池串4安装到电池腔2中，电池腔2中的一组电池串4的负 极端采用连接簧片连接导通；
C、将相邻的两个电池腔2中的电池串4之间通过连接簧片连接导通，在电池包本体1的一端引出电极引线；
D、将电池腔2的两端设有密封装置，将电池腔2进行密封处理。
本发明的有益效果是：
铝合金外壁结构可有效防止电池包被击穿，与电池外形尺寸配合的空腔结构可固定电池串，本发明的安装简单，技术难度低、密封性可靠。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。

Claims (7)

  1. 一种防水型密封电池包,包括电池包本体(1)，其特征在于：所述电池包本体(1)上设有铝合金外壁(8)，所述铝合金外壁(8)内部设有电池腔(2)，电池腔(2)的内部设有电池串(4)，电池串(4)上设有电池(5)，所述铝合金外壁(8)的一端设有电极引出线(3)，铝合金外壁(8)上电极引出线的出口处设有防水圈，所述铝合金外壁(8)的外侧一边设有连接凹槽(6)，铝合金外壁(8)的外侧另一边设有连接凸筋(7)。
  2. 根据权利要求1所述的一种防水型密封电池包，其特征在于：所述电池腔(2)的内部成8字型，电池腔(2)之间相互间隔开，所述电池腔(2)的两端设有密封材料。
  3. 根据权利要求1所述的一种防水型密封电池包，其特征在于：所述电池串(4)上设有电池(5)，电池(5)的正极与负极相连，所述电池腔(2)内部同一个电池腔(2)内的两个电池串(4)的负极端设有连接簧片。
  4. 根据权利要求1所述的一种防水型密封电池包，其特征在于：所述电池串(4)与电池腔(2)相互配合。
  5. 根据权利要求1所述的一种防水型密封电池包，其特征在于：所述连接凹槽(6)与连接凸筋(7)成等腰梯形状，所述连接凹槽(6)与连接凸筋(7)相互配合。
  6. 根据权利要求1所述的一种防水型密封电池包，其特征在于：所述电极引出线(3)为正极引出线、负极引出线，正极引出线、负极引出线上设有PVC绝缘层。
  7. 实现权力要求1所述的一种防水型密封电池包的防水方法，其特征在于：包括以下步骤：
    A、将电池(5)的正极与负极相连，形成电池串(4)；
    B、将一组电池串(4)安装到电池腔(2)中，电池腔(2)中的一组电池串(4)的负极端采用连接簧片连接导通；
    C、将相邻的两个电池腔(2)中的电池串(4)之间通过连接簧片连接导通，在电池包本体(1)的一端引出电极引线；
    D、将电池腔(2)的两端设有密封装置，将电池腔(2)进行密封处理。
PCT/CN2017/101772 2017-09-05 2017-09-14 一种防水型密封电池包及防水方法 WO2019047253A1 (zh)

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CN201710791166.3A CN107968169A (zh) 2017-09-05 2017-09-05 一种防水型密封电池包及防水方法

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