WO2021036629A1 - 电池模组 - Google Patents

电池模组 Download PDF

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Publication number
WO2021036629A1
WO2021036629A1 PCT/CN2020/104678 CN2020104678W WO2021036629A1 WO 2021036629 A1 WO2021036629 A1 WO 2021036629A1 CN 2020104678 W CN2020104678 W CN 2020104678W WO 2021036629 A1 WO2021036629 A1 WO 2021036629A1
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WO
WIPO (PCT)
Prior art keywords
battery module
output
extension
base
sampling
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Application number
PCT/CN2020/104678
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English (en)
French (fr)
Inventor
刘存瑞
黄仰枝
姚己华
沈升
陈亮
Original Assignee
宁德时代新能源科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Priority to EP20827969.5A priority Critical patent/EP3813139B1/en
Priority to US17/127,328 priority patent/US20210111461A1/en
Publication of WO2021036629A1 publication Critical patent/WO2021036629A1/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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • 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
    • H01M50/271—Lids or covers for the racks or secondary casings
    • 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
    • H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
    • 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
    • H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
    • H01M50/287—Fixing of circuit boards to lids or covers
    • 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
    • H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
    • 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 embodiments of the present application relate to the technical field of energy storage devices, and in particular to a battery module.
  • the upper cover of the battery module provides insulation, fixation and protection for the module.
  • the existing module cover structure has the following shortcomings: due to space constraints, the module cover does not have a fixed structure on the output pole part, and the battery module is likely to be placed on the output pole during the vibration process. Cocked.
  • the embodiment of the present application provides a battery module, which solves the problem that the upper cover of the module is prone to warping at the output pole.
  • the embodiment of the present application provides a battery module, including:
  • a housing the housing having an inner cavity for accommodating the battery unit
  • An output assembly the output assembly is electrically connected to the battery unit, and the output assembly is arranged on the outer side of the casing away from the battery unit;
  • the module upper cover closes the inner cavity;
  • the module upper cover includes a body and a protruding part, and the protruding part is connected with the output assembly.
  • the protruding part extends from the body to one or both sides along the length direction (L) of the battery module;
  • module upper cover 1 is a flat structure as a whole.
  • the output assembly includes a sampling output base, the extension includes a first extension, and the first extension is connected to the sampling output base.
  • the first extension is provided with a groove
  • the sampling output base is provided with a first clamping portion, and the first clamping portion is matched with the groove.
  • a connecting plate extends downward from the first extension, and a through hole is provided on the connecting plate;
  • the sampling output base is provided with a first protrusion on one side facing the housing, and the first protrusion is adapted to the through hole.
  • sampling circuit board As a possible design, it further includes a sampling circuit board, one end of the sampling circuit board is connected with a reinforcing plate, and the sampling output base is connected to the reinforcing plate through a second clamping part;
  • the height of the first clamping portion is higher than the height of the second clamping portion.
  • the height difference between the first clamping portion and the second clamping portion is less than or equal to the thickness (W2) of the upper cover of the module.
  • the output assembly further includes an output pole base and a protective cover, and the protective cover is connected to the output pole base;
  • the extension includes a second extension, and the second extension is connected to the protective cover.
  • the second protrusion has a second protrusion
  • the second protrusion and the protective cover are interference fit.
  • the output assembly includes a sampling output base and two output pole bases;
  • the two output pole bases are respectively located on both sides of the casing;
  • the sampling output base is located on either side of the housing;
  • the protrusion includes a first protrusion and two second protrusions
  • the two second protrusions are respectively located on both sides of the body;
  • the first extension is located on any side of the casing body
  • the first extension is connected to the sampling output base
  • the second extension part is connected with the output pole base.
  • the battery module described above includes a module upper cover and an output assembly, wherein the module upper cover is provided with an extension part, the module upper cover is connected with the output assembly through the extension part, and the extension part is fixedly connected to the output assembly In this way, the module upper cover can be prevented from being lifted, thereby solving the problem that the module cover is prone to lifting at the output pole.
  • FIG. 1 is a schematic diagram of the structure of a battery module provided by an embodiment of the application
  • Figure 2 is a cross-sectional view of a battery module provided by an embodiment of the application.
  • FIG. 3 is a partial exploded view of a battery module provided by an embodiment of the application.
  • FIG. 4 is a partial enlarged view of the battery module provided by an embodiment of the application based on part C in FIG. 3;
  • FIG. 5 is a partial exploded view of a battery module provided by an embodiment of the application.
  • Fig. 6 is a partial enlarged view of the battery module provided by the embodiment of the application based on part A in Fig. 5;
  • Fig. 7 is a partial enlarged view of the battery module provided by an embodiment of the application based on part F in Fig. 4;
  • FIG. 8 is a partial enlarged view of the battery module provided by an embodiment of the application based on part E in FIG. 4;
  • FIG. 9 is a schematic structural diagram of a battery module provided by an embodiment of the application based on the sampling output base of FIG. 3;
  • FIG. 10 is a partial enlarged view of the battery module provided by an embodiment of the application based on part D in FIG. 3;
  • FIG. 11 is a schematic structural diagram of a battery module provided by an embodiment of the application based on the sampling output base of FIG. 5;
  • FIG. 12 is a partial enlarged view of the battery module provided by an embodiment of the application based on part B in FIG. 5;
  • FIG. 13 is a schematic structural diagram of a module upper cover of a battery module provided by an embodiment of the application.
  • FIG. 14 is a top view of the upper module cover of the battery module provided by the embodiment of the application.
  • FIG. 15 is a partial enlarged view of the battery module provided by the embodiment of the application based on FIG. 14;
  • FIG. 16 is a partial enlarged view of the battery module provided by the embodiment of the application based on FIG. 14.
  • an embodiment of the present application provides a battery module, including: a battery unit 4, a casing 3, an output assembly 2 and a module upper cover 1.
  • the housing 3 has an inner cavity for accommodating the battery unit 4, the output assembly 2 is electrically connected to the battery unit 4, and the output assembly 2 is arranged on the outer side of the housing 3 away from the battery unit 4, the upper module cover 1 closes the inner cavity, and the mold
  • the group upper cover 1 includes a body 12 and a protruding part 11, and the protruding part 11 is connected with the output assembly 2.
  • the upper module cover is connected to the output assembly 2 through the extension 11, which can prevent the upper module cover 1 from lifting, thus solving the problem that the upper module cover 1 is prone to lifting at the output pole.
  • the protruding portion 11 extends from the main body 12 to one or both sides along the length direction (L) of the battery module, and the module upper cover 1 is integrated into a flat plate structure, so that the protruding portion of the module upper cover 1 11 is located on the same horizontal plane as the body 12 of the module upper cover 1, so that the extension 11 will not extend upward or downward along the height H direction of the battery module. Therefore, the extension 11 will not occupy the height direction of the battery module. Space, thereby increasing the energy density of the battery module.
  • the extension 11 and the main body 12 are integrally injection-molded, and the integrally formed module upper cover 1 is not only simple in molding process, but also has sufficient strength to ensure the connection between the module upper cover 1 and the output assembly 2. Reliability. It should be noted that there is no connection relationship between the traditional module upper cover 1 and the output assembly 2, so when the battery module is vibrating, the module upper cover 1 will easily be lifted at the output pole.
  • the module upper cover 1 of the embodiment of the present application is connected to the output assembly 2 through the extension 11, which can prevent the module upper cover 1 from lifting, thus solving the problem that the module upper cover 1 is prone to lifting at the output pole. .
  • the output component 2 includes a sampling output base 21 and a sampling circuit board 5.
  • the sampling circuit board 5 includes a sampling substrate 52 and a connector 53, the sampling substrate 52 is a PCB board or an FPC board (that is, a flexible circuit board), and the connector 53 is used for electrical connection with the sampling substrate 51 and is suitable for external
  • PCB board or FPC board that is, a flexible circuit board
  • the connector 53 is used for electrical connection with the sampling substrate 51 and is suitable for external
  • the output assembly 2 includes a sampling output base 21, the extension 11 includes a first extension 111, and the first extension 111 is connected to the sampling output base 21 , Can prevent the module upper cover 1 from lifting at the output pole.
  • the first extension 111 is provided with a groove 111a, the sampling output base 21 is provided with a first clamping portion 211, and the first clamping portion 211 is matched with the groove 111a. , The first extension 111 is fixed on the sampling output base 21 to prevent the module upper cover 1 from lifting at the output pole.
  • the first extension 111 extends downwardly with a connecting plate 113, the connecting plate 113 is provided with a through hole 113a, and the sampling output base 21 faces a side of the housing 3.
  • a first protrusion 212 is provided on the side, and the first protrusion 212 is matched with the through hole 113a. The first protrusion 212 is inserted into the through hole 113a, and the first extension 111 is fixed to the sampling output base 21, which solves the problem that the upper module cover 1 is prone to warping at the output pole.
  • the sampling substrate 52 is selected as an FPC board
  • the FPC is relatively flexible, in order to match the fixation when electrically connected to the connector 53, a reinforcing plate 51 is provided at one end of the sampling substrate 52 and the connector 53.
  • the arrangement can increase the strength of the end of the sampling circuit board 5 and facilitate the connection with the connector 53.
  • the sampling output base 21 is connected to the reinforcing plate 51 through the second clamping portion 213, and the reinforcing plate 51 is fixed to the sampling output base 21, so that the connector 52 is fixed in the sampling output base 21.
  • the sampling output base 21 is connected to the first extension 111 of the extension 11, because the first extension 111 is provided with a groove 111a along the width direction (W) of the battery module, while the sampling output base 21 is provided with a first extension 111a.
  • a clamping portion 211 so the first clamping portion 211 is used in conjunction with the groove 111a, and the first extension 111 is fixed to the sampling output base 21 through the first clamping portion 211, thereby preventing the module from being attached Cover 1 is tilted.
  • the height of the first clamping portion 211 is higher than the height of the second clamping portion 213, wherein the second clamping portion 213 is used to The reinforcing plate 51 is fixed on the sampling output base 21, and the first clamping portion 211 is used to fix the first extension 111 on the sampling output base 21.
  • the height difference (W1) between the first clamping portion 211 and the second clamping portion 213 is less than or equal to the thickness (W2) of the upper cover 1 of the module.
  • the bottom surface of the first extension 111 abuts against the top of the second clamping part 213, and the top surface of the first extension 111 is The height is higher than the height of the top surface of the first clamping portion 211, or the top surface of the first extension 111 and the top surface of the first clamping portion 211 are located on the same horizontal plane, so as to prevent the first clamping portion 211 from occupying the battery module Space, thereby reducing the volume of the secondary battery.
  • the distance between the two first clamping portions 211 is greater than the distance between the two second clamping portions 213, and the distance between the two first clamping portions 211 is smaller than the distance between the two second clamping portions 213
  • the difference between the distances is 2 millimeters (mm).
  • the distance between the side of the part 213 away from the reinforcing plate 51) is 1 mm, which is mainly for facilitating the assembly of the reinforcing plate 51 and the upper module cover 1.
  • the output corresponding to the sampling output base 21 is generally a low-voltage output electrode.
  • the low-voltage output pole will not be exposed during the vibration of the battery module, and the safety performance is good.
  • the output assembly 2 further includes an output pole base 22 and a protective cover 23.
  • the protective cover 23 is connected to the output pole base 22, and the extension 11 includes a second extension.
  • the second extension 112 and the second extension 112 are connected to the protective cover 23.
  • the second protrusion 112a is provided on the second protrusion 112, and the second protrusion 112a is in an interference fit with the protective cover 23 (the interference is generally set to 1 mm), that is, the second protrusion 112a is pressed on Protect the inside of the cover 23. Therefore, when assembling, the second protrusion 112 a and the protective cover 23 are interference fit, and then the second protrusion 112 is fixed to the protective cover 23.
  • a protective cover 23 is fixedly connected to the output pole base 22. When the protective cover 23 is clamped to the second extension 112, the protective cover 23, the output pole base 22 and the second extension 112 jointly enclose a protective space for the output pole , Good safety performance.
  • the second extension 112 is fixed to the protective cover 23 to prevent the second extension 112 from lifting.
  • the specific structure of the protective cover 23 is not limited, as long as the protective cover 23 can be interference fit with the second protrusion 112a.
  • a notch 231 is provided on the side of the protective cover 23 close to the extension portion 11, and the notch 231 is in interference fit with the second extension portion 112.
  • an extension structure 233 is provided on the side of the protective cover 23 away from the extension 11, the extension 233 extends downward along the height H direction of the battery module, and the protective cover 23 is close to the extension 11
  • One side is set as a flat surface 232, and when the battery module is installed, the flat surface 232 is in interference fit with the second extension portion 112.
  • the second protrusion 112a due to the arrangement of the second protrusion 112a, only the second protrusion 112a needs to be interference fit with the protective cover 23 during the installation process, and no tools such as sleeves are required for assembly, thus avoiding the need for sleeves.
  • the tube interferes with the output pole or the upper cover of the module.
  • the output pole corresponding to the output pole base 22 is a high-voltage positive output pole or a high-voltage negative output pole. Since the protective cover 23 at the high-voltage positive output pole and the high-voltage negative output pole have the same structure, the output pole base 22 at the high-voltage positive output pole and the high-voltage negative output pole are also the same.
  • the output assembly 2 includes a sampling output base 21 and two output pole bases 22, wherein, along the length direction (L) of the battery module, The sampling output base 21 is located on either side of the housing 3, and the two output pole bases 22 are located on both sides of the housing 3 respectively.
  • the extension portion 11 includes a first extension portion 111 and two second extension portions 112, wherein, along the length direction (L) of the battery module, the first extension portion 111 is located on either side of the body 12 of the housing 3 , The two second extensions 112 are located on both sides of the main body 12 respectively. At this time, the first extension 111 is connected to the sampling output base 21, and the second extension 112 is connected to the output pole base 22.
  • the upper module cover 1 is connected to the three output components 2 through the first extension 111 and the two second extensions 112 respectively, which can prevent the upper module cover 1 from lifting up, thus solving the problem of the output of the upper module cover 1
  • the problem of warping is extremely prone to occur.
  • the output corresponding to the sampling output base 21 is generally a low-voltage output.
  • the output poles corresponding to the two output pole bases 22 are a high-voltage positive output pole and a high-voltage negative output pole, respectively.
  • the extension portion 11 when the extension portion 11 extends from the main body 12 to one side along the length direction (L) of the battery module, it can be connected to the sampling output base 21 through the first extension portion 111 to prevent the module upper cover 1 from lifting . Or the second extension 112 is connected to the output pole base 22 to prevent the module upper cover 1 from lifting.
  • the extension 11 extends from the main body 12 along the length direction (L) of the battery module to both sides, one sampling output base 21 is provided, one or two output pole bases 22 are provided, and the sampling output assembly 2 and the first extension The output part 111 is connected, and the output pole base 22 is connected to the second extension part 112 to prevent the module upper cover 1 from being tilted.
  • the embodiment of the present application solves the problem that the upper module cover 1 cannot be fixed structures on the high-voltage positive pole, the output pole high-voltage negative pole output pole, and the low-voltage output pole portion due to space limitations, which causes the problem of warping.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

储能器件技术领域，尤其是一种电池模组，包括：电池单元（4）；壳体（3），所述壳体（3）具有容纳所述电池单元（4）的内腔；输出组件（2），所述输出组件（2）电连接于所述电池单元（4），且所述输出组件（2）设置于所述壳体（3）远离所述电池单元（4）的外侧；模组上盖（1），所述模组上盖（1）封闭所述内腔；所述模组上盖（1）包括本体（12）和伸出部（11），所述伸出部（11）与所述输出组件（2）连接。解决了模组上盖（1）在输出极处容易发生翘起的问题。

Description

电池模组
本申请要求于2019年08月23日提交中国专利局、申请号为201921384580.3、发明名称为“电池模组”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及储能器件技术领域，尤其涉及一种电池模组。
背景技术
电池模组的模组上盖为模组提供绝缘、固定及保护的作用。但是现有的模组上盖结构存在以下缺点：由于受空间限制，模组上盖在输出极部分并无固定结构，电池模组在振动过程中，导致模组上盖在输出极处容易发生翘起。
发明内容
本申请的实施例提供了一种电池模组，解决了模组上盖在输出极处容易发生翘起的问题。
本申请的实施例提供了一种电池模组，包括：
电池单元；
壳体，所述壳体具有容纳所述电池单元的内腔；
输出组件，所述输出组件电连接于所述电池单元，且所述输出组件设置于所述壳体远离所述电池单元的外侧；
模组上盖，所述模组上盖封闭所述内腔；所述模组上盖包括本体和伸出部，所述伸出部与所述输出组件连接。
作为一种可能的设计，所述伸出部从所述本体沿所述电池模组的长度方 向(L)向一侧或两侧延伸；
且模组上盖1整体成平板结构。
作为一种可能的设计，所述输出组件包括采样输出底座，所述伸出部包括第一伸出部，所述第一伸出部与所述采样输出底座连接。
作为一种可能的设计，沿所述电池模组的宽度方向(W)，所述第一伸出部设置有凹槽；
所述采样输出底座设置有第一卡接部，所述第一卡接部与所述凹槽配合。
作为一种可能的设计，沿所述电池模组的高度方向(H)，所述第一伸出部向下延伸有连接板，所述连接板上设置有通孔；
所述采样输出底座朝向所述壳体的一侧设置有第一凸起，所述第一凸起与所述通孔相适配。
作为一种可能的设计，还包括采样电路板，所述采样电路板的一端连接有补强板，所述采样输出底座通过第二卡接部连接于所述补强板；
沿所述电池模组的高度方向(H)，所述第一卡接部的高度高于所述第二卡接部的高度。
作为一种可能的设计，所述第一卡接部与所述第二卡接部之间的高度差小于或等于所述模组上盖的厚度(W2)。
作为一种可能的设计，所述输出组件还包括输出极底座和保护盖，所述保护盖连接于所述输出极底座；
所述伸出部包括第二伸出部，所述第二伸出部与所述保护盖连接。
作为一种可能的设计，所述第二伸出部具有第二凸起；
所述第二凸起与所述保护盖过盈配合。
作为一种可能的设计，所述输出组件包括采样输出底座和两个输出极底座；
沿所述电池模组的长度方向(L)，两个所述输出极底座分别位于所述壳体的两侧；
沿所述电池模组的长度方向(L)，所述采样输出底座位于所述壳体的任一侧；
所述伸出部包括第一伸出部和两个第二伸出部；
沿所述电池模组的长度方向(L)，两个所述第二伸出部分别位于本体的两侧；
沿所述电池模组的长度方向(L)，所述第一伸出部位于所述壳体本体的任一侧；
所述第一伸出部与所述采样输出底座连接；
所述第二伸出部与所述输出极底座连接。
上述描述的电池模组，包括模组上盖和输出组件，其中模组上盖设置有伸出部，模组上盖通过伸出部与输出组件连接，并将伸出部固接于输出组件处，进而能够避免模组上盖翘起，因此解决了模组上盖在输出极处容易发生翘起的问题。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性的，并不能限制本申请。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1为本申请实施例所提供的电池模组的结构示意图；
图2为本申请实施例所提供的电池模组的剖视图；
图3为本申请实施例所提供的电池模组的局部的爆炸图；
图4为本申请实施例所提供的电池模组基于图3中C部分的局部放大图；
图5为本申请实施例所提供的电池模组的局部的爆炸图；
图6为本申请实施例所提供的电池模组基于图5中A部分的局部放大图；
图7为本申请实施例所提供的电池模组基于图4中F部分的局部放大图；
图8为本申请实施例所提供的电池模组基于图4中E部分的局部放大图；
图9为本申请实施例所提供的电池模组基于图3的采样输出底座的结构示意图；
图10为本申请实施例所提供的电池模组基于图3中D部分的局部放大图；
图11为本申请实施例所提供的电池模组基于图5的采样输出底座的结构示意图；
图12为本申请实施例所提供的电池模组基于图5中B部分的局部放大图；
图13为本申请实施例所提供的电池模组的模组上盖的结构示意图；
图14为本申请实施例所提供的电池模组的模组上盖的俯视图；
图15为本申请实施例所提供的电池模组基于图14的局部放大图；
图16为本申请实施例所提供的电池模组基于图14的局部放大图。
附图标记：
1-模组上盖；
11-伸出部；
111-第一伸出部；
111a-凹槽；
112-第二伸出部；
112a-第二凸起；
113-连接板；
113a-通孔；
12-本体；
2-输出组件；
21-采样输出底座；
211-第一卡接部；
212-第一凸起；
213-第二卡接部；
22-输出极底座；
23-保护盖；
231-缺口；
232-平面；
233-延伸结构；
3-壳体；
4-电池单元；
5-采样电路板；
51-补强板；
52-采样基片；
53-连接器。
具体实施方式
下面将结合附图对本申请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申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，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，都属于本申请保护的范围。
在本申请实施例中使用的术语是仅仅出于描述特定实施例的目的，而非 旨在限制本申请。在本申请实施例和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
应当理解，本文中使用的术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
需要注意的是，本申请实施例所描述的“上”、“下”、“左”、“右”等方位词是以附图所示的角度来进行描述的，不应理解为对本申请实施例的限定。此外，在上下文中，还需要理解的是，当提到一个元件连接在另一个元件“上”或者“下”时，其不仅能够直接连接在另一个元件“上”或者“下”，也可以通过中间元件间接连接在另一个元件“上”或者“下”。
参考附图1-图3所示，本申请实施例提供了一种电池模组，包括：电池单元4、壳体3、输出组件2和模组上盖1。其中，壳体3具有容纳电池单元4的内腔，输出组件2电连接于电池单元4，且输出组件2设置于壳体3远离电池单元4的外侧，模组上盖1封闭内腔，模组上盖1包括本体12和伸出部11，伸出部11与输出组件2连接。模组上盖通过伸出部11与输出组件2连接，能够避免模组上盖1翘起，因此解决了模组上盖1在输出极处容易发生翘起的问题。
进一步地，伸出部11从本体12沿电池模组的长度方向(L)向一侧或两侧延伸，且模组上盖1整体成平板结构，能够使模组上盖1的伸出部11与模组上盖1的本体12位于同一水平面，不会使伸出部11沿电池模组的高度H方向向上或向下延伸，因此伸出部11不会占用电池模组在高度方向上的空间，从而提高了电池模组的能量密度。
需要注意的是，伸出部11与本体12为一体注塑成型，一体成型的模组上盖1不仅成型工艺简单，而且具有足够的强度，保证了模组上盖1与输出组件2之间连接的可靠性。需要说明的是，传统的模组上盖1与输出组件2处不存在连接关系，因此在电池模组在振动的过程中，会导致模组上盖1在 输出极处容易发生翘起。而本申请实施例的模组上盖1通过伸出部11与输出组件2连接，能够避免模组上盖1翘起，因此解决了模组上盖1在输出极处容易发生翘起的问题。
本申请一种实施例中，如图3和4所示，输出组件2包括采样输出底座21和采样电路板5。采样电路板5包括采样基片52和连接器53，采样基片52选用PCB板或者FPC板(即柔性电路板)，连接器53用于与采样基片51电连接，并适用于与外部的信号输出设备连接，可根据实际应用情况选择市售的PCB或FPC常规连接器。
本申请另一种实施例中，如图5和6所示，输出组件2包括采样输出底座21，伸出部11包括第一伸出部111，第一伸出部111与采样输出底座21连接，能够防止模组上盖1在输出极处翘起。
需要说明的是，沿电池模组的宽度方向W，第一伸出部111设置有凹槽111a，采样输出底座21设置有第一卡接部211，第一卡接部211与凹槽111a配合，将第一伸出部111固定在采样输出底座21上，防止模组上盖1在输出极处翘起。
需要说明的是，沿电池模组的高度方向(H)第一伸出部111向下延伸有连接板113，连接板113上设置有通孔113a，同时采样输出底座21朝向壳体3的一侧设置有第一凸起212，第一凸起212与通孔113a相适配。通过第一凸起212插入到通孔113a，进而将第一伸出部111固定于采样输出底座21，解决了模组上盖1在输出极处容易发生翘起的问题。
当采样基片52选用FPC板时，由于FPC较柔软，为了配合与连接器53电连接时的固定，在采样基片52与连接器53的一端设置补强板51，通过补强板51的设置，能够提高采样电路板5端部的强度，便于与连接器53连接。
其中，采样输出底座21通过第二卡接部213连接于补强板51，并将补强板51固定于采样输出底座21上，从而使得连接器52固定于采样输出底座21内。采样输出底座21与伸出部11中的第一伸出部111连接，由于沿电池模组的宽度方向(W)第一伸出部111设置有凹槽111a，同时采样输出底座21设置有第一卡接部211，因此第一卡接部211与凹槽111a配合使用，通过 第一卡接部211将第一伸出部111固定于采样输出底座21，进而能够防止该处的模组上盖1翘起。
进一步地，如图7所示，沿电池模组的高度方向(H)，第一卡接部211的高度高于第二卡接部213的高度，其中，第二卡接部213用于将补强板51固定于采样输出底座21上，第一卡接部211用于将第一伸出部111固定于采样输出底座21上。可选地，第一卡接部211与第二卡接部213之间的高度差(W1)小于或等于模组上盖1的厚度(W2)，因此电池模组组装后，当模组上盖1的第一伸出部111与第一卡接部211卡接后，第一伸出部111的底面抵接在第二卡接部213的顶部，第一伸出部111的顶面的高度高于第一卡接部211的顶面的高度，或者第一伸出部111的顶面与第一卡接部211的顶面位于同一水平面，避免第一卡接部211占用电池模组的空间，进而减小二次电池的体积。
其中，两个第一卡接部211之间的距离大于两个第二卡接部213之间的距离，且两个第一卡接部211之间的距离与两个第二卡接部213之间的距离之差为2毫米(mm)。位于补强板51同侧的第一卡接部211的外表面(即第一卡接部211上远离补强板51的一面)和第二卡接部213的外表面(即第二卡接部213上远离补强板51的一面)之间的距离为1mm，主要是为了方便补强板51和模组上盖1的装配。
需要说明的是，采样输出底座21对应的输出极为一般为低压输出极。
还需要说明的是，由于第一伸出部111的设置，在电池模组振动的过程中，低压输出极不会裸露，安全性能好。
本申请又一种实施例中，如图10和图12所示，输出组件2还包括输出极底座22和保护盖23，保护盖23连接于输出极底座22，伸出部11包括第二伸出部112，第二伸出部112与保护盖23连接。装配时，将第二伸出部112固定在保护盖23上，能够防止第二伸出部112翘起。
具体的，第二伸出部112上设置有第二凸起112a，而第二凸起112a与保护盖23过盈配合(过盈量一般设置为1mm)，即第二凸起112a被压在保护盖23内侧。因此在装配时，第二凸起112a与保护盖23过盈配合，进而将第二伸出部112固定于保护盖23。输出极底座22上固定连接有保护盖23，当 保护盖23卡接于第二伸出部112时，保护盖23与输出极底座22以及第二伸出部112共同围成输出极的保护空间，安全性能好。而且第二伸出部112固定于保护盖23，能够防止第二伸出部112翘起。
需要说明的是，保护盖23的具体结构不受限制，只要保护盖23能够与第二凸起112a过盈配合即可。其中，如图10所示，保护盖23上靠近伸出部11的一侧设置有缺口231，该缺口231与第二伸出部112过盈配合。或者如图12所示，保护盖23上远离伸出部11的一侧设置有延伸结构233，延伸结构233沿电池模组的高度H方向向下延伸，保护盖23上靠近伸出部11的一侧设置为平面232，当电池模组安装后，该平面232与第二伸出部112过盈配合。
需要说明的是，由于第二凸起112a的设置，在安装的过程中只需要将第二凸起112a与保护盖23过盈配合即可，不需要套筒等工具进行组装，因此避免了套筒干涉输出极或模组上盖。
需要说明的是，输出极底座22对应的输出极为高压正极输出极或高压负极输出极。由于高压正极输出极和高压负极输出极处的保护盖23结构相同，因此高压正极输出极和高压负极输出极处的输出极底座22也相同。
还需要说明的是，由于第二伸出部112的设置，在电池模组振动的过程中，高压正极输出极或高压负极输出极不会裸露，避免短路的风险，安全性能好。
本申请又一种实施例中，如图3、图12和图13所示，输出组件2包括采样输出底座21和两个输出极底座22，其中，沿电池模组的长度方向(L)，采样输出底座21位于壳体3的任一侧，两个输出极底座22分别位于壳体3的两侧。伸出部11包括第一伸出部111和两个第二伸出部112，其中，沿电池模组的长度方向(L)，第一伸出部111位于壳体3本体12的任一侧，两个第二伸出部112分别位于本体12的两侧。此时，第一伸出部111与采样输出底座21连接，第二伸出部112与输出极底座22连接。模组上盖1通过第一伸出部111和两个第二伸出部112分别与三个输出组件2连接，能够避免模组上盖1翘起，因此解决了模组上盖1在输出极处容易发生翘起的问题。
需要说明的是，一般情况下，采样输出底座21对应的输出极为一般为 低压输出极。两个输出极底座22对应的输出极分别为高压正极输出极和高压负极输出极。
综上，当伸出部11从本体12沿电池模组的长度方向(L)向一侧延伸时，可通过第一伸出部111与采样输出底座21连接，避免模组上盖1翘起。或者通过第二伸出部112与输出极底座22连接，避免模组上盖1翘起。当伸出部11从本体12沿电池模组的长度方向(L)向两侧延伸时，采样输出底座21设置一个，输出极底座22设置一个或两个，通过采样输出组件2与第一伸出部111连接，输出极底座22与第二伸出部112连接，避免模组上盖1翘起。因此本申请实施例解决了因空间局限，模组上盖1无法在高压正极、输出极高压负极输出极和低压输出极部分做固定结构而产生翘起的问题。
以上所述仅为本申请的可选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种电池模组，其特征在于，包括：
    电池单元(4)；
    壳体(3)，所述壳体(3)具有容纳所述电池单元(4)的内腔；
    输出组件(2)，所述输出组件(2)电连接于所述电池单元(4)，且所述输出组件(2)设置于所述壳体(3)远离所述电池单元(4)的外侧；
    模组上盖(1)，所述模组上盖(1)封闭所述内腔；所述模组上盖(1)包括本体(12)和伸出部(11)，所述伸出部(11)与所述输出组件(2)连接。
  2. 根据权利要求1所述的电池模组，其特征在于，所述伸出部(11)从所述本体(12)沿所述电池模组的长度方向(L)向一侧或两侧延伸；
    且所述模组上盖(1)整体成平板结构。
  3. 根据权利要求2所述的电池模组，其特征在于，所述输出组件(2)包括采样输出底座(21)，所述伸出部(11)包括第一伸出部(111)，所述第一伸出部(111)与所述采样输出底座(21)连接。
  4. 根据权利要求3所述的电池模组，其特征在于，沿所述电池模组的宽度方向(W)，所述第一伸出部(111)设置有凹槽(111a)；
    所述采样输出底座(21)设置有第一卡接部(211)，所述第一卡接部(211)与所述凹槽(111a)配合。
  5. 根据权利要求3-4中任意一项所述的电池模组，其特征在于，沿所述电池模组的高度方向(H)，所述第一伸出部(111)向下延伸有连接板(113)，所述连接板(113)上设置有通孔(113a)；
    所述采样输出底座(21)朝向所述连接板(113)的一侧设置有第一凸起(212)，所述第一凸起(212)与所述通孔(113a)相适配。
  6. 根据权利要求3-5中任意一项所述的电池模组，其特征在于，还包括采样电路板(5)，所述采样电路板(5)的一端连接有补强板(51)，所述采样输出底座(21)通过第二卡接部(213)连接于所述补强板(51)；
    沿所述电池模组的高度方向(H)，所述第一卡接部(211)的高度高于所述第二卡接部(213)的高度。
  7. 根据权利要求6所述的电池模组，其特征在于，所述第一卡接部(211)与所述第二卡接部(213)之间的高度差小于或等于所述模组上盖(1)的厚度(W2)。
  8. 根据权利要求1-7中任意一项所述的电池模组，其特征在于，所述输出组件(2)还包括输出极底座(22)和保护盖(23)，所述保护盖(23)连接于所述输出极底座(22)；
    所述伸出部(11)包括第二伸出部(112)，所述第二伸出部(112)与所述保护盖(23)连接。
  9. 根据权利要求8所述的电池模组，其特征在于，
    所述第二伸出部(112)具有第二凸起(112a)；
    所述第二凸起(112a)与所述保护盖(23)过盈配合。
  10. 根据权利要求1-9中任意一项所述的电池模组，其特征在于，所述输出组件(2)包括采样输出底座(21)和两个输出极底座(22)；
    沿所述电池模组的长度方向(L)，两个所述输出极底座(22)分别位于所述壳体(3)的两侧；
    沿所述电池模组的长度方向(L)，所述采样输出底座(21)位于所述壳体(3)的任一侧；
    所述伸出部(11)包括第一伸出部(111)和两个第二伸出部(112)；
    沿所述电池模组的长度方向(L)，两个所述第二伸出部(112)分别位于所述本体(12)的两侧；
    沿所述电池模组的长度方向(L)，所述第一伸出部(111)位于所述壳体本体(12)的任一侧；
    所述第一伸出部(111)与所述采样输出底座(21)连接；
    所述第二伸出部(112)与所述输出极底座(22)连接。
PCT/CN2020/104678 2019-08-23 2020-07-25 电池模组 WO2021036629A1 (zh)

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