CN114388968A - A module-free battery pack integration device using soft-packed cells - Google Patents

A module-free battery pack integration device using soft-packed cells Download PDF

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CN114388968A
CN114388968A CN202111663244.4A CN202111663244A CN114388968A CN 114388968 A CN114388968 A CN 114388968A CN 202111663244 A CN202111663244 A CN 202111663244A CN 114388968 A CN114388968 A CN 114388968A
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battery
tray
assembly
battery cell
cell
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陆珂伟
陈明伟
李勇君
汪振
胡胜
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Shanghai Advanced Traction Battery Systems Co Ltd
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Shanghai Advanced Traction Battery Systems Co Ltd
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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
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
    • 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
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • 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
    • H01M50/256—Carrying devices, e.g. belts
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本发明提供一种采用软包电芯的无模组电池包集成装置，包括上盖、托盘、直冷板组件和加热片组件，托盘上端设有电芯组件，托盘的侧设有电池配电单元和电池管理单元，相邻两排电芯组件之间设有电芯监控单元，电池配电单元与电芯组件通过高压铜排连接，直冷板组件覆盖于电芯组件的上端，加热片组件设置于电芯组件的下方；本发明取消模组结构，电芯组件直接入托盘，提高电池包集成度，生产效率高；电芯成组的尺寸控制通过托盘结构约束实现，省去模组层面进行的框架激光焊接，电芯与托盘底部采用结构胶填充，固定和缓冲作用更佳。

Figure 202111663244

The invention provides a module-free battery pack integration device using soft-packed cells, comprising an upper cover, a tray, a direct cooling plate assembly and a heating plate assembly, the upper end of the tray is provided with a cell assembly, and the side of the tray is provided with a battery power distribution unit Unit and battery management unit, a battery monitoring unit is arranged between two adjacent rows of battery components, the battery power distribution unit and the battery components are connected through high-voltage copper bars, the direct cooling plate component covers the upper end of the battery components, and the heating plate The components are arranged below the battery core components; the invention cancels the module structure, and the battery core components are directly inserted into the tray, which improves the integration degree of the battery pack and has high production efficiency; The frame is laser welded on the level, and the cell and the bottom of the tray are filled with structural glue, which has better fixing and buffering effects.

Figure 202111663244

Description

一种采用软包电芯的无模组电池包集成装置A module-free battery pack integration device using soft-packed cells

技术领域technical field

本发明涉及车用级动力电池包领域，尤其涉及一种采用软包电芯的无模组电池包集成装置。The invention relates to the field of vehicle-grade power battery packs, in particular to a module-free battery pack integration device using soft-packed cells.

背景技术Background technique

随着新能源汽车的迅速普及，动力电池集成技术受到极大关注。目前主流集成方案采用电芯成组为模组，一定数量的模组集成到电池包。模组作为中间体，集成过程中，需要考虑结构强度、热管理、整体空间等相关需求，导致电芯到电池包空间集成度不够高，续航里程受到制约。众多的零部件，造成集成成本偏高。不同续航里程的电池包，往往需要电芯进行不同组合，导致模组规格和尺寸众多，不利于平台化、通用化，生产效率不够高，存在重复投资等问题，制约了更大规模运用。With the rapid popularization of new energy vehicles, power battery integration technology has received great attention. At present, the mainstream integration solutions use cells to form modules, and a certain number of modules are integrated into the battery pack. As the module is an intermediate, during the integration process, structural strength, thermal management, overall space and other related requirements need to be considered, resulting in insufficient integration of the battery cell to the battery pack space, and the cruising range is restricted. Numerous components, resulting in high integration costs. Battery packs with different mileage often require different combinations of cells, resulting in numerous module specifications and sizes, which are not conducive to platformization and generalization, and the production efficiency is not high enough. There are problems such as repeated investment, which restricts larger-scale application.

发明内容SUMMARY OF THE INVENTION

本发明的目的是提供一种采用软包电芯的无模组电池包集成装置。The purpose of the present invention is to provide a module-free battery pack integration device using soft-packed cells.

为了实现上述目的，本发明的技术方案是：In order to achieve the above object, the technical scheme of the present invention is:

一种采用软包电芯的无模组电池包集成装置，其特征在于，包括上盖、托盘、直冷板组件和加热片组件，所述托盘的上端设有若干电芯组件，所述电芯组件呈矩形阵列状分布，所述托盘的一侧设有电池配电单元和电池管理单元，前后相邻的两排电芯组件之间设有电芯监控单元，所述电池配电单元与电芯组件通过高压铜排连接，所述电芯组件包括电芯，所述电芯的左右两侧设有端板，所述端板的外侧设有汇流排和采样组件，左右相邻的电芯通过高压跨接片连接，左右相邻的采样组件通过低压采样线束连接，所述低压采样线束接至电芯监控单元，所述直冷板组件覆盖于电芯组件的上端，所述加热片组件设置于电芯组件的下方。A non-module battery pack integration device using soft-packed cells is characterized in that it includes an upper cover, a tray, a direct cooling plate assembly and a heating plate assembly, and the upper end of the tray is provided with a number of cell assemblies, the electric The core components are distributed in a rectangular array. One side of the tray is provided with a battery power distribution unit and a battery management unit, and a battery monitoring unit is provided between the two adjacent rows of battery core components. The cell components are connected by high-voltage copper bars. The cell components include a cell, and end plates are provided on the left and right sides of the cell, and bus bars and sampling components are provided on the outside of the end plates. The cores are connected by a high-voltage jumper, the left and right adjacent sampling assemblies are connected by a low-voltage sampling wire harness, and the low-voltage sampling wire harness is connected to the cell monitoring unit, the direct cooling plate assembly covers the upper end of the cell assembly, and the heating plate The components are arranged below the cell components.

进一步地，所述电芯组件的上端涂覆导热结构胶，所述直冷板组件与电芯组件的上端通过导热胶黏连，所述直冷板组件与托盘通过螺栓固定连接。Further, the upper end of the battery core assembly is coated with thermally conductive structural adhesive, the direct cooling plate assembly and the upper end of the battery core assembly are adhered with thermally conductive adhesive, and the direct cooling plate assembly and the tray are fixedly connected by bolts.

进一步地，所述加热片组件的下端通过低导热结构胶与托盘的上端黏连。Further, the lower end of the heating plate assembly is adhered to the upper end of the tray through low thermal conductivity structural adhesive.

进一步地，所述电芯的上端设有缓冲泡棉。Further, the upper end of the battery core is provided with a buffer foam.

进一步地，所述托盘的内部沿前后方向设有若干隔板，所述隔板分割左右相邻的电芯组件。Further, the interior of the tray is provided with a plurality of partitions along the front and rear directions, and the partitions divide the left and right adjacent cell assemblies.

进一步地，所述托盘一侧的中央朝外凸出设有安装槽，所述电池配电单元和电池管理单元设置于安装槽内，所述电池管理单元位于电池配电单元和电芯组件之间。Further, the center of one side of the tray is provided with a mounting groove protruding outward, the battery power distribution unit and the battery management unit are arranged in the mounting groove, and the battery management unit is located between the battery power distribution unit and the battery core assembly. between.

进一步地，所述电芯组件的前后两侧设有隔离板，所述隔离板与隔板相互垂直设置。Further, isolation plates are provided on the front and rear sides of the battery core assembly, and the isolation plates and the partition plates are arranged perpendicular to each other.

进一步地，所述隔离板的下端与隔板的上端通过凹凸结构配合定位，所述隔离板的左右两侧与托盘的内壁贴合。Further, the lower end of the partition plate and the upper end of the partition plate are positioned by means of a concave-convex structure, and the left and right sides of the partition plate are attached to the inner wall of the tray.

本发明取消模组结构，电芯组件直接入托盘，提高电池包集成度，生产效率高；电芯成组的尺寸控制通过托盘结构约束实现，省去模组层面进行的框架激光焊接，电芯与托盘底部采用结构胶填充，固定和缓冲作用更佳；The invention cancels the module structure, and the battery core components are directly inserted into the tray, which improves the integration degree of the battery pack and has high production efficiency; The bottom of the tray is filled with structural glue, which has better fixing and buffering effects;

顶部布置直冷板，冷却效率高，节约能源，对电芯固定和电池包结构加强起到重要作用；分离加热和冷却热管理路径，加热置于电芯底部，冷却置于电芯顶部，显著提升加热和保温效果。The direct cooling plate is arranged on the top, which has high cooling efficiency and saves energy. It plays an important role in fixing the cells and strengthening the structure of the battery pack. The heating and cooling thermal management paths are separated, and the heating is placed at the bottom of the cell, and the cooling is placed at the top of the cell. Improve heating and thermal insulation.

附图说明Description of drawings

图1为本发明整体结构拆解示意图；Fig. 1 is the dismantling schematic diagram of the overall structure of the present invention;

图2为本发明电芯组件的结构图；FIG. 2 is a structural diagram of a cell assembly of the present invention;

图3为本发明电芯组件与托盘相配合的局部结构图；FIG. 3 is a partial structural diagram of the matching of the battery core assembly and the tray according to the present invention;

图4为本发明电芯组件与托盘相配合的整体结构图；Fig. 4 is the overall structure diagram of the battery core assembly of the present invention matched with the tray;

图5为本发明电芯组件的侧面结构图；5 is a side structural view of the cell assembly of the present invention;

图6为本发明电芯组件的线束连接图；Fig. 6 is the wiring harness connection diagram of the cell assembly of the present invention;

图7为本发明直冷板组件的安装结构图。FIG. 7 is an installation structural diagram of the direct cooling plate assembly of the present invention.

附图标记：Reference number:

1上盖、2托盘、3直冷板组件、4加热片组件、5电芯组件、1 upper cover, 2 trays, 3 direct cold plate components, 4 heating plate components, 5 cell components,

6隔板、7电池配电单元、8电池管理单元、9电芯监控单元、6 separators, 7 battery power distribution units, 8 battery management units, 9 battery cell monitoring units,

10高压铜排、11安装槽、12电芯、13端板、14缓冲泡棉、10 high voltage copper bars, 11 installation slots, 12 cells, 13 end plates, 14 buffer foam,

15汇流排、16螺栓孔、17导热结构胶、18低导热结构胶、15 busbars, 16 bolt holes, 17 thermal conductive structural adhesive, 18 low thermal conductive structural adhesive,

19低压采样线束、20通讯线束、21加热器线束、22隔离板。19 low-voltage sampling harness, 20 communication harness, 21 heater harness, 22 isolation board.

具体实施方式Detailed ways

下面将结合附图对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例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。The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

本发明公开了一种采用软包电芯的无模组电池包集成装置，包括上盖1、托盘2、直冷板组件3和加热片组件4，托盘2的上端设有若干电芯组件5，电芯组件5呈矩形阵列状分布，托盘2的内部沿前后方向设有若干隔板6，隔板6分割左右相邻的电芯组件5，电芯组件5的前后两侧设有隔离板22，隔离板22与隔板6相互垂直设置，隔离板22的下端与隔板6的上端通过凹凸结构配合定位，隔离板22的左右两侧与托盘2的内壁贴合。The invention discloses a module-free battery pack integration device using soft-packed cells, comprising an upper cover 1, a tray 2, a direct cooling plate assembly 3 and a heating sheet assembly 4, and the upper end of the tray 2 is provided with a number of cell assemblies 5 The cell assemblies 5 are distributed in a rectangular array. The interior of the tray 2 is provided with a number of partitions 6 along the front and rear directions. The partitions 6 divide the left and right adjacent cell assemblies 5. 22. The partition plate 22 and the partition plate 6 are arranged perpendicular to each other. The lower end of the partition plate 22 and the upper end of the partition plate 6 are positioned by the concave-convex structure. The left and right sides of the partition plate 22 are attached to the inner wall of the tray 2 .

托盘2的一侧设有电池配电单元7和电池管理单元8，前后相邻的两排电芯组件5之间设有电芯监控单元9。A battery power distribution unit 7 and a battery management unit 8 are arranged on one side of the tray 2 , and a battery monitoring unit 9 is arranged between the two adjacent rows of battery core assemblies 5 in the front and rear.

电池配电单元7与电芯组件5通过高压铜排10连接，托盘2一侧的中央朝外凸出设有安装槽11，电池配电单元7和电池管理单元8设置于安装槽11内，电池管理单元8位于电池配电单元7和电芯组件5之间。The battery power distribution unit 7 is connected to the battery core assembly 5 through a high-voltage copper bar 10. The center of one side of the tray 2 protrudes outward with a mounting slot 11. The battery power distribution unit 7 and the battery management unit 8 are arranged in the mounting slot 11. The battery management unit 8 is located between the battery power distribution unit 7 and the cell assembly 5 .

如图6所示，电芯组件5包括电芯12，由电芯监控单元9监控电芯12的电压和温度，电芯12的左右两侧设有端板13，电芯12的上端设有缓冲泡棉14，端板13的外侧设有汇流排15和采样组件，左右相邻的电芯12通过高压跨接片连接，左右相邻的采样组件设有低压接口，低压接口通过低压采样线束19连接。As shown in FIG. 6 , the cell assembly 5 includes a cell 12 , and the voltage and temperature of the cell 12 are monitored by the cell monitoring unit 9 . The left and right sides of the cell 12 are provided with end plates 13 , and the upper end of the cell 12 is provided with The buffer foam 14, the outer side of the end plate 13 is provided with a bus bar 15 and a sampling assembly, the adjacent cells 12 on the left and right are connected by a high-voltage jumper, and the sampling assembly on the left and right is provided with a low-voltage interface, and the low-voltage interface passes through the low-voltage sampling harness. 19 connections.

如图2所示，将端板13、电芯12和缓冲泡棉14通过堆叠形成组合体，各堆叠界面涂覆压敏胶堆叠形成组后进行夹紧，利用激光焊接集成汇流排15和采样组件，形成完整的电芯组件5。As shown in FIG. 2 , the end plate 13 , the battery core 12 and the buffer foam 14 are stacked to form an assembly, and each stacking interface is coated with pressure-sensitive adhesive to form a group and then clamped, and the busbar 15 and the sampling components to form a complete cell assembly 5 .

电芯组件5的压力构建参加图3，托盘2匹配结构利用机械加工精确控制尺寸，对电芯组件5进行限位，构建初始压力。The pressure construction of the cell assembly 5 is shown in Figure 3. The matching structure of the tray 2 uses machining to precisely control the size, limit the position of the cell assembly 5, and build the initial pressure.

如图4所示，端板13与托盘2通过螺栓固定，形成初级结构连接，依次将其它电芯组件5放入托盘2，电芯组件5的先期测试主要探测Busbar焊接质量和相关采样测试，测试合格继续下一阶段，不合格移除。As shown in Figure 4, the end plate 13 and the tray 2 are fixed by bolts to form a primary structural connection, and other cell components 5 are put into the tray 2 in turn. Pass the test and continue to the next stage, and the unqualified is removed.

如图5所示，电芯组件5与托盘2底部之间布置加热片组件4，构成电芯12加热通路，电芯组件5的顶部放置直冷板组件3，直冷板组件3与电芯12间涂覆导热结构胶17，直冷板组件3与电芯组件5的上端通过导热结构胶17黏连，电芯12热量通过直冷板组件3带走。As shown in FIG. 5 , the heating sheet assembly 4 is arranged between the cell assembly 5 and the bottom of the tray 2 to form a heating path for the cell 12 , and the direct cooling plate assembly 3 is placed on the top of the cell assembly 5 , and the direct cooling plate assembly 3 and the cell are The 12 rooms are coated with thermally conductive structural adhesive 17 , the upper end of the direct cooling plate assembly 3 and the cell assembly 5 are adhered by the thermally conductive structural adhesive 17 , and the heat of the cell 12 is taken away by the direct cooling plate assembly 3 .

如图6所示，本发明的接线关系为，电芯监控单元9之间通过通讯线束20连接，加热片组件4通过加热器线束21与电池配电单元7连接，电芯组件5通过低压采样线束19接至电芯监控单元9。As shown in FIG. 6 , the wiring relationship of the present invention is that the cell monitoring units 9 are connected through the communication harness 20 , the heater element 4 is connected to the battery power distribution unit 7 through the heater harness 21 , and the cell assembly 5 is connected through the low-voltage sampling The wiring harness 19 is connected to the cell monitoring unit 9 .

如图7所示，直冷板组件3设有4*4阵列共十六个螺栓孔16，托盘2的四个角设有与直冷板组件3配合的四个螺栓孔16，直冷板组件3与托盘2通过16个螺栓固定连接，螺栓也辅助固定电芯组件5。As shown in FIG. 7 , the direct cooling plate assembly 3 is provided with a total of sixteen bolt holes 16 in a 4*4 array. The four corners of the tray 2 are provided with four bolt holes 16 matched with the direct cooling plate assembly 3. The direct cooling plate The component 3 is fixedly connected to the tray 2 through 16 bolts, and the bolts also assist in fixing the cell component 5 .

电芯组件5与托盘2底部之间布置加热片组件4，构成电芯12加热通路，电芯12与托盘2底部的空隙区域灌封低导热结构胶18，辅助保温和结构固定，加热片组件4的下端通过低导热结构胶18与托盘2的上端黏连。The heating chip assembly 4 is arranged between the cell assembly 5 and the bottom of the tray 2 to form a heating path for the cell 12. The low thermal conductivity structural glue 18 is encapsulated in the gap area between the cell 12 and the bottom of the tray 2 to assist heat preservation and structural fixation. The heating chip assembly The lower end of 4 is adhered to the upper end of the tray 2 through low thermal conductivity structural adhesive 18 .

最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (8)

1. A module-free battery pack integration device adopting a soft-packaged battery cell is characterized by comprising an upper cover, a tray, a straight cooling plate assembly and a heating plate assembly, wherein a plurality of battery cell assemblies are arranged at the upper end of the tray and distributed in a rectangular array shape, a battery power distribution unit and a battery management unit are arranged on one side of the tray, a battery cell monitoring unit is arranged between two rows of adjacent battery cell assemblies in the front and back, the battery power distribution unit is connected with the battery cell assemblies through high-voltage copper bars, each battery cell assembly comprises a battery cell, end plates are arranged on the left side and the right side of the battery cell, a bus bar and a sampling assembly are arranged on the outer sides of the end plates, the left adjacent battery cells and the right adjacent battery cells are connected through high-voltage jumper plates, the left adjacent sampling assemblies and the right adjacent sampling assemblies are connected through low-voltage sampling wire harnesses, the low-voltage sampling wire harnesses are connected to the battery cell monitoring unit, and the straight cooling plate assembly covers the upper end of the battery cell assemblies, the heating sheet assembly is arranged below the electric core assembly.
2. The integrated device according to claim 1, wherein the upper end of the electric core assembly is coated with a heat-conducting structural adhesive, the direct-cooling plate assembly is adhered to the upper end of the electric core assembly through the heat-conducting adhesive, and the direct-cooling plate assembly is fixedly connected with the tray through a bolt.
3. The integrated apparatus of claim 1, wherein the lower end of the heater chip assembly is adhered to the upper end of the tray by a low thermal conductivity structural adhesive.
4. The integrated device of claim 1, wherein the upper end of the cell is provided with a buffer foam.
5. The integrated device according to claim 1, wherein the tray is provided with a plurality of partitions in the front-back direction, and the partitions divide the left and right adjacent electric core assemblies.
6. The integrated device according to claim 1 or 5, wherein a mounting groove is formed in the center of one side of the tray and protrudes outwards, the battery distribution unit and the battery management unit are disposed in the mounting groove, and the battery management unit is located between the battery distribution unit and the battery pack.
7. The integrated device of claim 5, wherein the front and back sides of the electric core assembly are provided with isolation plates, and the isolation plates and the partition plates are arranged perpendicular to each other.
8. The integrated device of claim 7, wherein the lower end of the isolation plate and the upper end of the partition plate are positioned in a concave-convex structure, and the left side and the right side of the isolation plate are attached to the inner wall of the tray.
CN202111663244.4A 2021-12-31 2021-12-31 A module-free battery pack integration device using soft-packed cells Pending CN114388968A (en)

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Application publication date: 20220422