WO2022052314A1 - 一种浸润式电芯充放电测试装置 - Google Patents

一种浸润式电芯充放电测试装置 Download PDF

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Publication number
WO2022052314A1
WO2022052314A1 PCT/CN2020/130544 CN2020130544W WO2022052314A1 WO 2022052314 A1 WO2022052314 A1 WO 2022052314A1 CN 2020130544 W CN2020130544 W CN 2020130544W WO 2022052314 A1 WO2022052314 A1 WO 2022052314A1
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charging
test device
discharging
battery cell
flange
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PCT/CN2020/130544
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English (en)
French (fr)
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闫飞
王进
胡庆波
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联动天翼新能源有限公司
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Publication of WO2022052314A1 publication Critical patent/WO2022052314A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/385—Arrangements for measuring battery or accumulator variables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details

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  • the invention relates to the technical field of battery cell testing, in particular to an immersed battery cell charging and discharging testing device.
  • the cooling system is often divided into natural cooling, air cooling, liquid cooling and phase change cooling (refrigerant cooling), among which air cooling and liquid cooling are the most widely used.
  • Liquid cooling is a radiator that uses a liquid medium to absorb heat and bring it to the outside through indirect or direct contact with heat-generating components.
  • the purpose of the present invention is to provide an immersed battery cell charge and discharge test device, so as to solve the problem of inaccurate test results caused by the difference between the performance test of the existing battery cell and the actual use situation.
  • an immersed battery charge and discharge test device comprising:
  • the flange plate has inlets and outlets on both sides, which are used to introduce and discharge coolant respectively;
  • the insulating bottom plate and the transparent plate are respectively fixed on the bottom end and the top end of the flange;
  • a plurality of cell support bases are fixedly arranged in the flange
  • a plurality of charging and discharging mechanisms are respectively used to charge and discharge the corresponding battery cells on the battery cell support base;
  • a sealing gasket is further provided between the transparent plate and the flange.
  • a clamp is also installed on the outer side of the top end of the flange plate, which is used to compress the flange plate, the transparent plate and the sealing gasket.
  • the charging and discharging mechanism includes several probe bases, several probes and several wiring screws, the probe bases are installed on both ends of the corresponding battery cell support bases, and the probes are installed.
  • the wiring screw is fixed on the bottom of the insulating base plate and is electrically connected with the corresponding probe.
  • both the inlet and the outlet on both sides of the flange are provided with on-off valves.
  • the material of the transparent plate is tempered glass.
  • the cooling liquid includes heat transfer oil.
  • a through hole is opened on the insulating bottom plate, and after the temperature sensing wire passes through the through hole, the through hole is sealed with a sealant.
  • a plurality of supporting legs are fixedly connected to the bottom of the insulating base plate.
  • An immersed battery charge and discharge test device includes a flange plate, an insulating bottom plate, a transparent plate, a plurality of battery core support bases, a plurality of charging and discharging mechanisms and a plurality of temperature sensing wires, wherein the The two sides of the flange are respectively provided with an inlet and an outlet, which are respectively used for introducing and discharging cooling liquid; the insulating bottom plate and the transparent plate are respectively fixed on the bottom and top of the flange; several The battery cell support bases are all fixedly arranged in the flange; a plurality of the charging and discharging mechanisms are respectively used to charge and discharge the cells on the corresponding battery cell support bases; a plurality of the temperature sensor The lines are respectively used to measure the surface temperature of the corresponding cell.
  • the immersion-type battery cell charge and discharge test device has a simple structure, is easy to disassemble and assemble, and can more realistically simulate the working environment in which the actual battery cell/module is immersed in the cooling liquid of the battery cell, so that the test results are more accurate;
  • the sealing environment in the blue plate can meet the sealing effect under the condition of high pressure, and ensure the accuracy of the measured temperature data.
  • FIG. 1 is a schematic structural diagram of an immersed battery charge and discharge test device provided by the present invention.
  • Fig. 2 is a top view of an immersed cell charge and discharge test device provided by the present invention
  • Fig. 3 is A-A sectional view in Fig. 2;
  • Fig. 4 is a right side view of an immersed cell charge and discharge test device provided by the present invention.
  • FIG. 5 is a schematic diagram of a working state of an immersed battery charge and discharge test device provided by the present invention.
  • the present invention provides an immersed battery cell charge and discharge test device, the structure of which is shown in Figures 1-3. It includes a flange plate 1, an insulating bottom plate 2, a transparent plate 3, a number of battery cell support bases 4, a number of charging and discharging mechanisms 5 and a number of temperature sensing lines (not shown in the figure), wherein the flange plate 1 There are inlets 11 and outlets 12 on both sides, respectively for introducing and discharging cooling liquid, and the cooling liquid includes heat-conducting oil; the insulating bottom plate 2 and the transparent plate 3 are respectively fixed on the flange plate The bottom end and the top end of the 1; a plurality of the cell support bases 4 are fixedly arranged in the flange 1; a plurality of the charging and discharging mechanisms 5 are respectively used for the corresponding cell support bases The battery cells are charged and discharged; a plurality of the temperature sensing lines are respectively used to measure the surface temperature of the corresponding battery cells.
  • a gasket 6 is further provided between the transparent plate 3 and the flange 1 .
  • a clamp 7 is also installed on the outer side of the top end of the flange plate 1 for pressing the flange plate 1 , the transparent plate 3 and the sealing gasket 6 tightly.
  • Several supporting legs 10 are fixedly connected to the bottom of the insulating base plate 2 .
  • the material of the transparent plate 3 is tempered glass.
  • the charging and discharging mechanism 5 includes a plurality of probe bases 50 , a plurality of probes 51 and a plurality of connecting screws 52 , and the probe bases 50 are installed on the corresponding battery cell support bases 4 .
  • the probes 51 are installed on the corresponding probe bases 50
  • the wiring screws 52 are fixed on the bottom of the insulating base plate 2 , and are electrically connected to the corresponding probes 50 .
  • the inlet 11 and the outlet 12 on both sides of the flange 1 are provided with on-off valves 9 .
  • the insulating base plate 2 is provided with a through hole, and after the temperature sensing wire passes through the through hole, the through hole is sealed with a sealant.
  • the immersion-type battery cell charge and discharge test device provided by the present invention has a simple structure, is easy to disassemble and assemble, and can more realistically simulate the working environment of the actual battery cell/module immersed in the battery core pack cooling liquid, so that the test results are more accurate;
  • the sealing environment in the flange 1 can satisfy the sealing effect under the condition of relatively large pressure, so as to ensure the accuracy of the measured temperature data.

Abstract

一种浸润式电芯充放电测试装置，包括法兰盘(1)、绝缘底板(2)、透明板(3)、若干个电芯支撑座(4)、若干个充放电机构(5)和若干个温感线，其中，法兰盘(1)的两侧分别设有进口(11)和出口(12)，分别用于通入和排出冷却液；绝缘底板(2)和透明板(3)分别固定在法兰盘(1)的底端和顶端；若干个电芯支撑座(4)均固定设置在法兰盘(1)内；若干个充放电机构(5)分别用于给对应的电芯支撑座(4)上的电芯进行充放电；若干个温感线分别用于测量对应的电芯表面温度，浸润式电芯充放电测试装置结构简单，拆装方便，能够更真实地模拟实际电芯/模组浸泡在电芯包冷却液中的工作环境，使得测试结果更加准确。

Description

一种浸润式电芯充放电测试装置 技术领域
本发明涉及电芯测试技术领域，特别涉及一种浸润式电芯充放电测试装置。
背景技术
随着锂离子电芯被广泛应用于各行各业中，其测试方法也受到较多关注。常见的电芯测试方法，如GB/T31484-2015电动汽车用动力蓄电芯电性能要求及试验方法，其要求电芯的测试环境为25±5℃，相对湿度为15～90％，大气压为86kPa～106kPa。此条件针对单体电芯性能测试是准确的，但存在一个问题，就是电芯经过pack组装进入电芯包后，其实际运行时内部环境发生了较大变化。现在电芯包中针对电芯充放电过程中发热的问题，往往会配置冷却系统。而冷却系统往往分为自然冷却、风冷、液冷和相变冷却(制冷剂冷却)方式，其中风冷和液冷应用最为广泛。液冷是利用液体介质，通过间接或直接与发热部件接触，吸收热量并带到外部的散热器。
故电芯常用的测试环境条件与实际的使用环境存在较大的差异。单电芯的性能测试需要结合电芯包的实际使用情况进行，才能得到一个准确可靠的测试数据。
发明内容
本发明的目的在于提供一种浸润式电芯充放电测试装置，以解决现有的电芯的性能测试与实际使用情况存在差异，导致测试结果不准确的问题。
为解决上述技术问题，本发明提供了一种浸润式电芯充放电测试装置，包括：
法兰盘，其两侧分别设有进口和出口，分别用于通入和排出冷却液；
绝缘底板和透明板，分别固定在所述法兰盘的底端和顶端；
若干个电芯支撑座，均固定设置在所述法兰盘内；
若干个充放电机构，分别用于给对应的所述电芯支撑座上的电芯进行充放电；
若干个温感线，分别用于测量对应的电芯表面温度。
可选的，所述透明板和所述法兰盘之间还设有密封垫。
可选的，所述法兰盘的顶端外侧还安装有卡箍，用于将所述法兰盘、所述透明板和所述密封垫压紧。
可选的，所述充放电机构包括若干个探针底座、若干个探针和若干个接线螺丝，所述探针底座安装在对应的所述电芯支撑座的两端，所述探针安装在对应的所述探针底座上，所述接线螺丝固定在所述绝缘底板的底部，并与对应的所述探针电连接。
可选的，所述法兰盘两侧的进口和出口均设有开关阀。
可选的，所述透明板的材质为钢化玻璃。
可选的，所述冷却液包括导热油。
可选的，所述绝缘底板上开有通孔，所述温感线经所述通孔穿过后，用密封胶封堵通孔。
可选的，所述绝缘底板的底部固定连接有若干个支撑腿。
在本发明提供的一种浸润式电芯充放电测试装置中，包括法兰盘、绝缘底板、透明板、若干个电芯支撑座、若干个充放电机构和若干个温感线，其中，所述法兰盘的两侧分别设有进口和出口，分别用于通入和排出冷却液；所述绝缘底板和所述透明板，分别固定在所述法兰盘的底端和顶端；若干个所述电芯支撑座均固定设置在所述法兰盘内；若干个所述充放电机构分别用于给对应的所述电芯支撑座上的电芯进行充放电；若干个所述温感线分别用于测量对应的电芯表面温度。所述浸润式电芯充放电测试装置结构简单，拆装方便，能够更真实地模拟实际电芯/模组浸泡在电芯包冷却液中的工作环境，使得测试结果更加准确；且所述法兰盘中的密封环境能够在较大压力情况下满足密封效果，确保测量的温度数据的准确性。
附图说明
图1是本发明提供的一种浸润式电芯充放电测试装置的结构示意图；
图2是本发明提供的一种浸润式电芯充放电测试装置的俯视图；
图3是图2中的A-A截面图；
图4是本发明提供的一种浸润式电芯充放电测试装置的右视图；
图5是本发明提供的一种浸润式电芯充放电测试装置的工作状态示意图。
具体实施方式
以下结合附图和具体实施例对本发明提出的一种浸润式电芯充放电测试装置作进一步详细说明。根据下面说明和权利要求书，本发明的优点和特征将更清楚。需说明的是，附图均采用非常简化的形式且均使用非精准的比例，仅用以方便、明晰地辅助说明本发明实施例的目的。
实施例一
本发明提供了一种浸润式电芯充放电测试装置，其结构如图1-图3所示。包括法兰盘1、绝缘底板2、透明板3、若干个电芯支撑座4、若干个充放电机构5和若干个温感线(图中未示出)，其中，所述法兰盘1的两侧分别设有进口11和出口12，分别用于通入和排出冷却液，所述冷却液包括导热油；所述绝缘底板2和所述透明板3，分别固定在所述法兰盘1的底端和顶端；若干个所述电芯支撑座4均固定设置在所述法兰盘1内；若干个所述充放电机构5分别用于给对应的所述电芯支撑座4上的电芯进行充放电；若干个所述温感线分别用于测量对应的电芯表面温度。
具体地，所述透明板3和所述法兰盘1之间还设有密封垫6。所述法兰盘1的顶端外侧还安装有卡箍7，用于将所述法兰盘1、所述透明板3和所述密封垫6压紧。所述绝缘底板2的底部固定连接有若干个支撑腿10。作为优选，所述透明板3的材质为钢化玻璃。
请继续参照图3，所述充放电机构5包括若干个探针底座50、若干个探针51和若干个接线螺丝52，所述探针底座50安装在对应的所述电芯支撑座4的两端，所述探针51安装在对应的所述探针底座50上，所述接线螺丝52固定在所述绝缘底板2的底部，并与对应的所述探针50电连接。
如图4所示，所述法兰盘1两侧的进口11和出口12均设有开关阀9。所述绝缘底板2上开有通孔，所述温感线经所述通孔穿过后，用密封胶封堵通孔。
使用时，如图5所示，将所述浸润式电芯充放电测试装置沿竖直方向固定，打开所述所述进口11和所述出口12处的开关阀9，向所述法兰盘1 中注入冷却液，冷却液经所述进口11流入，由所述出口12流出，确保所有的电芯均浸润在冷却液中，实现液冷的目的。测试完毕后，如需取出待测的电芯，需先关闭所述开关阀9，拆卸所述卡箍7，放出冷却液后即可取出电芯，使用非常方便。
本发明提供的所述浸润式电芯充放电测试装置结构简单，拆装方便，能够更真实地模拟实际电芯/模组浸泡在电芯包冷却液中的工作环境，使得测试结果更加准确；且所述法兰盘1中的密封环境能够在较大压力情况下满足密封效果，确保测量的温度数据的准确性。
上述描述仅是对本发明较佳实施例的描述，并非对本发明范围的任何限定，本发明领域的普通技术人员根据上述揭示内容做的任何变更、修饰，均属于权利要求书的保护范围。

Claims (9)

  1. 一种浸润式电芯充放电测试装置，其特征在于，所述浸润式电芯充放电测试装置包括：
    法兰盘(1)，其两侧分别设有进口(11)和出口(12)，分别用于通入和排出冷却液；
    绝缘底板(2)和透明板(3)，分别固定在所述法兰盘(1)的底端和顶端；
    若干个电芯支撑座(4)，均固定设置在所述法兰盘(1)内；
    若干个充放电机构(5)，分别用于给对应的所述电芯支撑座(4)上的电芯进行充放电；
    若干个温感线，分别用于测量对应的电芯表面温度。
  2. 如权利要求1所述的一种浸润式电芯充放电测试装置，其特征在于，所述透明板(3)和所述法兰盘(1)之间还设有密封垫(6)。
  3. 如权利要求2所述的一种浸润式电芯充放电测试装置，其特征在于，所述法兰盘(1)的顶端外侧还安装有卡箍(7)，用于将所述法兰盘(1)、所述透明板(3)和所述密封垫(6)压紧。
  4. 如权利要求1所述的一种浸润式电芯充放电测试装置，其特征在于，所述充放电机构(5)包括若干个探针底座(50)、若干个探针(51)和若干个接线螺丝(52)，所述探针底座(50)安装在对应的所述电芯支撑座(4)的两端，所述探针(51)安装在对应的所述探针底座(50)上，所述接线螺丝(52)固定在所述绝缘底板(2)的底部，并与对应的所述探针(50)电连接。
  5. 如权利要求1所述的一种浸润式电芯充放电测试装置，其特征在于，所述法兰盘(1)两侧的进口(11)和出口(12)均设有开关阀(9)。
  6. 如权利要求1所述的一种浸润式电芯充放电测试装置，其特征在于，所述透明板(3)的材质为钢化玻璃。
  7. 如权利要求1所述的一种浸润式电芯充放电测试装置，其特征在于，所述冷却液包括导热油。
  8. 如权利要求1所述的一种浸润式电芯充放电测试装置，其特征在 于，所述绝缘底板(2)上开有通孔，所述温感线经所述通孔穿过后，用密封胶封堵通孔。
  9. 如权利要求1所述的一种浸润式电芯充放电测试装置，其特征在于，所述绝缘底板(2)的底部固定连接有若干个支撑腿(10)。
PCT/CN2020/130544 2020-09-10 2020-11-20 一种浸润式电芯充放电测试装置 WO2022052314A1 (zh)

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CN111929593A (zh) * 2020-09-10 2020-11-13 联动天翼新能源有限公司 一种浸润式电芯充放电测试装置

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