WO2021027601A1 - 电池模组 - Google Patents

电池模组 Download PDF

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Publication number
WO2021027601A1
WO2021027601A1 PCT/CN2020/106465 CN2020106465W WO2021027601A1 WO 2021027601 A1 WO2021027601 A1 WO 2021027601A1 CN 2020106465 W CN2020106465 W CN 2020106465W WO 2021027601 A1 WO2021027601 A1 WO 2021027601A1
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WO
WIPO (PCT)
Prior art keywords
battery module
limiting portion
pole base
output pole
end plate
Prior art date
Application number
PCT/CN2020/106465
Other languages
English (en)
French (fr)
Inventor
许文才
刘俊
姚己华
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 EP20827983.6A priority Critical patent/EP3806178B1/en
Priority to US17/125,858 priority patent/US11588200B2/en
Publication of WO2021027601A1 publication Critical patent/WO2021027601A1/zh

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Classifications

    • 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
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0481—Compression means other than compression means for stacks of electrodes and separators
    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0468—Compression means for stacks of electrodes and separators
    • 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
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • 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
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the embodiments of the present application relate to the technical field of energy storage devices, and in particular to a battery module.
  • the battery module usually includes an end plate and an output pole base.
  • the end plate is used to compress a plurality of battery cells, and the output pole base is installed on the end plate to fix the output pole of the battery module.
  • the embodiment of the present application provides a battery module to solve the problems in the prior art and prevent the output pole base from falling off during transportation.
  • the embodiment of the present application provides a battery module, including: an output pole base and an end plate; the output pole base and the end plate are mated in mating;
  • the output pole base is provided with a first limiting portion, and the end plate is provided with a limiting plate; the first limiting portion cooperates with the limiting plate to limit the output pole base and the end plate Relative movement in the first direction (X1);
  • One of the output pole base and the end plate is provided with a clamping hole, and the other is provided with a second limiting portion, and the second limiting portion is accommodated in the clamping hole; the second limiting The part cooperates with the clamping hole to limit the relative movement of the output pole base and the end plate in the second direction (X2);
  • the extension direction of the first direction (X1) is opposite to the extension direction of the second direction (X2).
  • the end plate includes a body
  • the card hole is opened in the body along the height direction (Z) of the battery module
  • the output pole base includes a bottom plate, and along the height direction (Z) of the battery module, the second limiting portion protrudes from the bottom plate.
  • the bottom plate is provided with a through slot
  • the first end of the second limiting portion is connected to the inner wall of the through groove
  • All parts of the second limiting part except the first end have a gap with the inner wall of the through groove.
  • the through groove has an opening, and the opening is disposed at a first end away from the second limiting portion.
  • the second limiting portion includes an elastic section
  • the bottom plate is provided with a through slot
  • the first end of the elastic section is connected to the inner wall of the through groove
  • the second end of the elastic section protrudes from the bottom plate.
  • the second limiting portion includes a fixed section and an elastic section
  • the first end of the fixed section is connected to the inner wall of the through groove
  • the first end of the elastic section is connected to the second end of the fixed section
  • the second end of the elastic section protrudes from the bottom plate.
  • the thickness (W1) of the elastic section is smaller than the thickness (W2) of the fixed section.
  • the included angle ⁇ between the elastic section and the fixed section satisfies: 90° ⁇ 180°.
  • the included angle ⁇ between the elastic section and the fixed section satisfies: 135° ⁇ 170°.
  • the number of the second limiting parts is more than two;
  • the second ends of the elastic segments of the two or more second limiting portions are staggered with each other;
  • the wall of the hole matching with the second limiting portion of the two or more clamping holes is not coplanar.
  • the first limit part and the second limit part are provided on the output pole base, and the end plate is provided with a limit plate and a clamping hole.
  • the first limit part cooperates with the limit plate to limit the first direction.
  • the relative movement of the output pole base and the end plate upwards, the second limit part cooperates with the clamping hole to limit the relative movement of the output pole base and the end plate in the second direction, thereby improving the connection reliability of the output pole base during the transfer process .
  • the second limit part is accommodated in the card hole.
  • the output pole base When the output pole base is installed, the output pole base is inserted into the slot without interference, and continues to be inserted until the first limit part matches the limit plate. The process is more convenient.
  • the end plate is not provided with interference objects on the side far from the limit plate, and it does not occupy the installation space of the battery unit close to the end plate, which improves the energy density of the battery module.
  • FIG. 1 is a schematic diagram of the structure of a battery module provided by an embodiment of the application
  • FIG. 2 is an exploded schematic diagram of the cooperation between the output pole base and the end plate in the battery module provided by the embodiment of the application;
  • FIG. 3 is a schematic structural diagram of one angle of an output pole base in the battery module provided by an embodiment of the application;
  • FIG. 4 is a schematic structural diagram from another angle of an output pole base in the battery module provided by the embodiment of the application;
  • FIG. 5 is a schematic structural diagram of another output pole base in the battery module provided by an embodiment of the application.
  • Fig. 6 is an enlarged view of A in Fig. 5;
  • FIG. 7 is a schematic structural diagram of yet another output pole base in the battery module provided by the embodiment of the application.
  • Figure 8 is an enlarged view of B in Figure 7;
  • FIG. 9 is a front view of the output pole base and the end plate of the battery module provided by the embodiment of the application after being matched;
  • Figure 10 is a cross-sectional view taken along the line C-C in Figure 9;
  • FIG. 11 is a schematic structural diagram of yet another output pole base in the battery module provided by the embodiment of the application.
  • FIG. 1 is a schematic diagram of the structure of a battery module provided by an embodiment of the application
  • FIG. 2 is an exploded schematic diagram of the cooperation between the output pole base and the end plate in the battery module provided by the embodiment of the application
  • a structural schematic diagram of an output pole base in the battery module provided from one angle is provided
  • FIG. 4 is a structural schematic diagram of another output pole base in the battery module provided in an embodiment of the application.
  • an embodiment of the present application provides a battery module 100 including an output pole base 1 and an end plate 2.
  • the end plate 2 may be made of metal materials, and the output pole base 1 is used to provide insulation protection for the output poles in the battery module 100, and may be made of plastic materials.
  • the output pole base 1 and the end plate 2 are mated and mated.
  • the output pole base 1 and the end plate 2 can be inserted along the length direction (X) of the battery module 100.
  • the output pole base 1 The end plate 2 can also be inserted and matched along other directions of the battery module 100.
  • the output pole base 1 is provided with a plug-in part 13 and the end plate 2 is provided with a slot 23.
  • the slot 23 extends along the length direction (X) of the battery module 100
  • the insertion portion 13 also extends along the length direction (X) of the battery module 100
  • the insertion portion 13 is inserted into the slot 23 in.
  • the slot 23 can be roughly dovetail-shaped
  • the plug-in portion 13 also has a roughly dovetail-shaped outer contour, which can restrict the output pole base 1 on the end plate 2 along the height direction (Z) and width direction of the battery module 100 (Y) relative movement.
  • the output pole base 1 is provided with a first limiting portion 14.
  • the first limiting portion 14 may be formed on the end surface of one end of the plug-in portion 13, or may be fixed to the plug-in portion 13 or fixed to other positions of the output pole base 1. Bumps or other structures. In this embodiment, the first limiting portion 14 is formed on the end surface of one end of the insertion portion 13.
  • the end plate 2 is provided with a limiting plate 24, and the limiting plate 24 can extend upward along the height direction (Z) of the battery module to block the first limiting portion 14.
  • the first limiting portion 14 cooperates with the limiting plate 24 to limit the relative movement of the output pole base 1 and the end plate 2 in the first direction (X1). In this way, after the output pole base 1 is installed on the end plate 2, in the process of transferring the output pole base 1 and the end plate 2, when the end plate 2 and the output pole base 1 are tilted or turned over, the output pole base 1 will not follow Departure in the first direction (X1).
  • one of the output pole base 1 and the end plate 2 is provided with a clamping hole 22, the other is provided with a second limiting portion 12, and the second limiting portion 12 is received in the clamping hole 22 .
  • the output pole base 1 is provided with a second limiting portion 12, and the end plate 2 is provided with a clamping hole 22.
  • the second limiting portion 12 cooperates with the clamping hole 22 to limit the relative movement of the output pole base 1 and the end plate 2 in the second direction (X2).
  • the extension direction in the first direction (X1) described above is opposite to the extension direction in the second direction (X2).
  • the first direction (X1) and the second direction (X2) are two opposite directions in the length direction (X) of the battery module 100.
  • the battery module 100 provided by the embodiment of the present application is provided with a second limiting portion 12 on the output pole base 1, a clamping hole 22 is provided on the end plate 2, and the second limiting portion 12 is received in the clamping hole 22, and the output pole base is installed At 1 o'clock, the output pole base 1 is inserted into the slot 23 without interfering objects, and continues to be inserted until the first limit part 14 is matched with the limit plate 24, and the assembly process is more convenient.
  • the end plate 2 is not provided with an interference object on the side away from the limit plate 24, and it does not occupy the installation space of the battery unit close to the end plate 2, which improves the energy density of the battery module 100.
  • the end plate 2 includes a body 21, and the clamping hole 22 is opened in the body 21 along the height direction (Z) of the battery module 100.
  • the output pole base 1 includes a bottom plate 11, and the second limiting portion 12 protrudes from the bottom plate 11 along the height direction (Z) of the battery module 100.
  • the plug-in portion 13 of the output pole base 1 is inserted along the slot 23 of the end plate 2.
  • the second limiting portion 12 is received in the hole 22.
  • the second limiting portion 12 and the hole wall of the hole 22 221 may not touch, or touch but there is no squeezing interference between the two.
  • the second limiting portion 12 will squeeze and interfere with the hole wall 221 of the clamping hole 22, thereby preventing the output pole The base 1 falls.
  • the occupied space can be reduced and the energy density of the battery module 100 can be improved.
  • the bottom plate 11 is provided with a through slot 111.
  • the first end 12a of the second limiting portion 12 is connected to the inner wall of the through slot 111, and the second limiting portion 12 except for the first end 12a
  • the other part of the one end 12a has a gap with the inner wall of the through groove 111.
  • the above-mentioned through groove 111 is formed.
  • the arrangement of the gap on the through groove 111 can also enable the second limiting portion 12 to have a certain degree of elasticity.
  • the end plate is inserted into the insertion portion 13 of the output pole base 1 During the process of the slot 24 of 2, the second limiting portion 12 is elastically deformed until it enters the card hole 22.
  • the through groove 111 has an opening 111 a, and the opening 111 a is disposed at the first end 12 a away from the second limiting portion 12.
  • the through groove 111 having the opening 111a can be obtained through a simple cutting process, and thus the second limiting portion 12 can be obtained with a relatively simple process.
  • the arrangement of the opening 111a can also make the output pole base 1 lighter and further increase the energy density of the battery module 100.
  • FIG. 5 is a schematic structural diagram of another output pole base in the battery module provided by an embodiment of the application, and FIG. 6 is an enlarged view of A in FIG. 5.
  • the second limiting portion 12 includes an elastic section 121.
  • the bottom plate 11 is provided with a through groove 111, the first end 121 a of the elastic section 121 is connected to the inner wall of the through groove 111, and the second end 121 b of the elastic section 121 protrudes from the bottom plate 11.
  • all other parts of the elastic section 121 except for the first end 121a have a gap with the inner wall of the through groove 111, so that the elasticity of the elastic section 121 can be improved.
  • the above-mentioned elastic section 121 may be an elastic piece directly formed on the bottom plate 11, and the elastic section 121 may also be block-shaped, and corresponding notches may be provided on the elastic section 121 to make the elastic section 121 have certain elasticity.
  • a raised inclined section is formed by the elastic section 121.
  • the inclined structure on the raised inclined section can form a guide Function so as to facilitate the second limiting portion 12 to enter the clamping hole 22 of the end plate 2.
  • FIG. 7 is a schematic structural diagram of another output pole base in the battery module provided by an embodiment of the application, and FIG. 8 is an enlarged view of B in FIG. 7.
  • the second limiting portion 12 includes a fixed section 122 and an elastic section 121.
  • the first end 122a of the fixed section 122 is connected to the inner wall of the through groove 111, and the elastic section
  • the first end 121 a of the 121 is connected to the second end 122 b of the fixed section 122, and the second end 121 b of the elastic section 121 protrudes from the bottom plate 11.
  • the fixed section 122 forms a straight section
  • the elastic section 121 forms a raised inclined section.
  • the raised inclined section The upper inclined surface can form a guiding function, so that the second limiting portion 12 can enter the clamping hole 22.
  • the arrangement of the fixing section 122 can increase the length of the entire second limiting portion 12, thereby improving the elastic performance of the second limiting portion 12.
  • the aforementioned fixing section 122 may be a sheet directly formed on the bottom plate 11, and the fixing section 122 may also be a block shape.
  • a notch can also be provided on the block-shaped fixing section 122 to make it have certain elasticity.
  • the block-shaped fixing section 122 may not be provided with a notch, and the second limiting portion 12 can enter the locking hole 22 through the elastic performance of the elastic section 121.
  • FIG. 9 is a front view of the output pole base and the end plate of the battery module provided by the embodiment of the application, and FIG. 10 is a cross-sectional view taken along the line C-C in FIG. 9.
  • the thickness (W1) of the elastic section 121 is smaller than the thickness (W2) of the fixed section 122. Therefore, the relatively thick fixed section 122 is used to ensure the second limit. For the connection strength of the position portion 12, the relatively thin elastic section 121 is used to improve the elastic performance of the second limit portion 12.
  • the thickness (W1) of the elastic section 121 and the thickness (W2) of the fixed section 122 both refer to the average thickness.
  • the second limiting portion 12 may have a curved surface structure or an inclined surface structure.
  • the elastic section 121 can form an inclined surface structure.
  • the included angle ⁇ between the elastic section 121 and the fixed section 122 satisfies: 90° ⁇ 180°, thereby forming a slope structure of the elastic section 121, which can facilitate the insertion of the output pole base 1. Connect assembly.
  • angle ⁇ between the elastic section 121 and the fixed section 122 refers to the difference between the side of the elastic section 121 protruding from the bottom plate 11 (refer to FIG. 8) and the side of the fixed section 122 protruding from the bottom plate 11 Angle.
  • the included angle ⁇ between the elastic section 121 and the fixed section 122 satisfies: 135° ⁇ 170°, which can contribute to the guiding effect of the inclined surface structure without damaging the second limiting portion 12.
  • the number of the second limiting portion 12 may be one (refer to FIG. 4) or two (refer to FIG. 5).
  • FIG. 11 is provided by the embodiment of the present application. A schematic structural diagram of another output pole base in the battery module, as shown in FIG. 11, the number of the second limiting portion 12 is three.
  • one, two or three corresponding holes 22 can be set.
  • the number of the second limiting portion 12 and the clamping hole 22 can also be more, which is not further limited here.
  • the number of the card holes 22 is two, and the two hole walls 221 are both flat and coplanar in the width direction (Y) of the battery module 100. At this time, they are matched with the card holes 22
  • the second end 121b of the elastic section 121 of the second limiting portion 12 may be in a flush state, as shown in FIG. 7.
  • the hole wall 221 may also be non-planar.
  • the number of the second limiting portions 12 is more than two.
  • the second ends 121b of the elastic sections 121 of the two or more second limiting portions 12 are staggered with each other, and the hole wall of the two or more locking holes 22 that matches the second limiting portion 12 221 are not coplanar.
  • the second limiting portion 12 can be implemented in multiple ways, which can adapt to different forms of end plates 2.

Abstract

一种电池模组(100)，该电池模组(100)包括输出极底座(1)和端板(2)，输出极底座(1)和端板(2)插接配合；输出极底座(1)设置有第一限位部(14)，端板(2)设置有限位板(24)；第一限位部(14)与限位板(24)配合，能够限制输出极底座(1)与端板(2)在第一方向(X1)的相对运动；输出极底座(1)和端板(2)中的一者设置有卡孔(22)，另一者设置有第二限位部(12)，第二限位部(12)容纳于卡孔(22)；第二限位部(12)与卡孔(22)配合，能够限制输出极底座(1)与端板(2)在第二方向(X2)的相对运动。电池模组(100)，通过第一限位部(14)与限位板(24)配合限制第一方向(X1)上输出极底座(1)与端板(2)的相对运动，第二限位部(12)与卡孔(22)配合限制第二方向(X2)上输出极底座(1)与端板(2)的相对运动，由此提高了转运过程中，输出极底座(1)的连接可靠性。

Description

电池模组
本申请要求于2019年08月15日提交中国专利局、申请号为201921323599.7、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
电池模组通常包括端板和输出极底座，端板用于将多个电池单体压紧，输出极底座安装于端板，用于固定电池模组的输出极。
然而，在上述输出极底座装配在端板之后，在转运过程中，输出极底座容易掉落。因此，有必要设计一种新的电池模组，以防止转运过程中输出极底座从端板上掉落。
发明内容
本申请实施例提供了一种电池模组，以解决现有技术中的问题，防止输出极底座在转运过程中脱落。
本申请的实施例提供了一种电池模组，包括：输出极底座和端板；所述输出极底座和所述端板插接配合；
所述输出极底座设置有第一限位部，所述端板设置有限位板；所述第一限位部与所述限位板配合，能够限制所述输出极底座与所述端板在第一方向(X1)的相对运动；
所述输出极底座和所述端板中的一者设置有卡孔，另一者设置有第二限位部，所述第二限位部容纳于所述卡孔；所述第二限位部与所述卡孔配合， 能够限制所述输出极底座与所述端板在第二方向(X2)的相对运动；
所述第一方向(X1)的延伸方向和所述第二方向(X2)的延伸方向相反。
作为一种可能的设计，所述端板包括本体；
所述卡孔沿电池模组的高度方向(Z)开设于所述本体；
所述输出极底座包括底板，沿所述电池模组的高度方向(Z)，所述第二限位部凸出于所述底板。
作为一种可能的设计，所述底板设置有通槽；
所述第二限位部的第一端连接于所述通槽的内壁；
所述第二限位部的除了第一端的其他部分，均与所述通槽的内壁具有间隙。
作为一种可能的设计，所述通槽具有开口，所述开口设置于远离所述第二限位部的第一端。
作为一种可能的设计，所述第二限位部包括弹性段；
所述底板设置有通槽；
所述弹性段的第一端连接于所述通槽的内壁；
所述弹性段的第二端凸出于所述底板。
作为一种可能的设计，所述第二限位部包括固定段和弹性段；
所述固定段的第一端连接于所述通槽的内壁；
所述弹性段的第一端连接于所述固定段的第二端；
所述弹性段的第二端凸出于所述底板。
作为一种可能的设计，所述弹性段的厚度(W1)小于所述固定段的厚度(W2)。
作为一种可能的设计，所述弹性段与所述固定段之间的夹角θ满足：90°＜θ＜180°。
作为一种可能的设计，所述弹性段与所述固定段之间的夹角θ满足： 135°＜θ＜170°。
作为一种可能的设计，所述第二限位部的数量为两个以上；
沿所述第二方向(X2)，两个以上的所述第二限位部的所述弹性段的第二端相互错开；
两个以上的所述卡孔中与所述第二限位部相配合的孔壁不共面。
上述描述的电池模组，通过在输出极底座设置第一限位部和第二限位部，在端板设置限位板和卡孔，第一限位部与限位板配合限制第一方向上输出极底座与端板的相对运动，第二限位部与卡孔配合限制第二方向上输出极底座与端板的相对运动，由此提高了转运过程中，输出极底座的连接可靠性。
而且，第二限位部容纳于卡孔，在安装输出极底座时，输出极底座在没有干涉物的状态下插进插槽，继续插入至第一限位部与限位板配合，其装配过程更加便利。而且端板在远离限位板的一侧没有设置干涉物，也不会占据靠近端板的电池单元的安装空间，提高了电池模组的能量密度。
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具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施方式，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他的附图。
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中输出极底座与端板配合的分解示意图；
图3为本申请实施例所提供的电池模组中一种输出极底座的一个角度的 结构示意图；
图4为本申请实施例所提供的电池模组中一种输出极底座的另一个角度的结构示意图；
图5为本申请实施例所提供的电池模组中另一种输出极底座的结构示意图；
图6为图5的A处放大图；
图7为本申请实施例所提供的电池模组中又一种输出极底座的结构示意图；
图8为图7的B处放大图；
图9为本申请实施例所提供的电池模组中输出极底座与端板配合后的主视图；
图10为图9的C-C向剖视图；
图11为本申请实施例所提供的电池模组中再一种输出极底座的结构示意图。
附图标记：
100-电池模组；
输出极底座；
11-底板；
111-通槽；
111a-开口；
12-第二限位部；
12a-第一端；
121-弹性段；
121a-第一端；
121b-第二端；
122-固定段；
122a-第一端；
122b-第二端；
13-插接部；
14-第一限位部；
端板；
21-本体；
22-卡孔；
221-孔壁；
23-插槽；
24-限位板。
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本申请的实施例，并与说明书一起用于解释本申请的原理。
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”。
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中输出极底座与端板配合的分解示意图；图3为本申请实施例所提供的电池模组中一种输出极底座的一个角度的结构示意图；图4为本申请实施例所提供的电池模组中一种输出极底座的另一个角度的结构示意图。
如图1和图2所示，本申请实施例提供了一种电池模组100，包括输出极底座1和端板2。端板2可以采用金属材料制成，输出极底座1用于为电池模组100中的输出极提供绝缘保护，可以采用塑胶材料制成。
输出极底座1和端板2插接配合，本实施例中，输出极底座1和端板2可以沿电池模组100的长度方向(X)插接，在其他实施例中，输出极底座1和端板2也可以沿电池模组100的其他方向插接配合。
作为一种可能的实现方式，输出极底座1设置有插接部13，端板2设置有插槽23。在本实施例中，插槽23沿电池模组100的长度方向(X)延伸，插接部13也沿电池模组100的长度方向(X)延伸，插接部13插接于该插槽23中。插槽23可以呈大致的燕尾形，插接部13也形成大致燕尾形的外轮廓，由此可以限制输出极底座1在端板2上沿电池模组100的高度方向(Z)和宽度方向(Y)的相对运动。
输出极底座1设置有第一限位部14，第一限位部14可以是形成于插接部13一端的端面，也可以是固定于插接部13或固定于输出极底座1其他位置的凸起或其他结构。本实施例中，第一限位部14是形成于插接部13一端的端面。
端板2设置有限位板24，限位板24可以沿着电池模组的高度方向(Z) 向上延伸，对第一限位部14形成阻挡。第一限位部14与限位板24配合，能够限制输出极底座1与端板2在第一方向(X1)的相对运动。这样，在输出极底座1安装到端板2之后，转运输出极底座1和端板2的过程中，在端板2和输出极底座1倾斜或发生翻转时，输出极底座1不会沿着第一方向(X1)脱离。
如图2和图4所示，输出极底座1和端板2中的一者设置有卡孔22，另一者设置有第二限位部12，第二限位部12容纳于卡孔22。本实施例中，输出极底座1设置有第二限位部12，端板2设置有卡孔22。第二限位部12与卡孔22配合，能够限制输出极底座1与端板2在第二方向(X2)的相对运动。上述的第一方向(X1)的延伸方向和第二方向(X2)的延伸方向相反。本实施例中，第一方向(X1)和第二方向(X2)是电池模组100的长度方向(X)上的两个反方向。
本申请实施例提供的电池模组100通过设置在输出极底座1设置第二限位部12，在端板2设置卡孔22，第二限位部12容纳于卡孔22，安装输出极底座1时，输出极底座1在没有干涉物的状态下插进插槽23，继续插入至第一限位部14与限位板24配合，其装配过程更加便利。而且端板2在远离限位板24的一侧没有设置干涉物，也不会占据靠近端板2的电池单元的安装空间，提高了电池模组100的能量密度。
在输出极底座1和端板2的转运过程中，如果输出极底座1和端板2朝向第一方向(X1)倾斜或翻转，在第一限位部14与限位板24的配合下，输出极底座1不会脱落。如果输出极底座1和端板2朝向第二方向(X2)倾斜或翻转，在第二限位部12与卡孔22的配合下，输出极底座1也不会脱落，由此提高了转运过程中，输出极底座1与端板2的连接可靠性。
作为一种可能的实现方式，如图2和图4所示，端板2包括本体21，卡孔22沿电池模组100的高度方向(Z)开设于本体21。输出极底座1包括底板11，沿电池模组100的高度方向(Z)，第二限位部12凸出于底板11。
输出极底座1的插接部13沿着端板2的插槽23插入，在转运之前，第二限位部12容纳于卡孔22中，第二限位部12与卡孔22的孔壁221可以不接触，或接触但二者之间并没有发生挤压干涉。在转运过程中，如果输出极 底座1和端板2朝向第二方向(X2)倾斜或翻转，第二限位部12则会与卡孔22的孔壁221发生挤压干涉，从而防止输出极底座1掉落。
通过将第二限位部12设置于输出极底座1的底板11，利用端板2的本体21上已有的孔作为卡孔22，能够减少占据空间，从而提高电池模组100的能量密度。
作为一种可能的实现方式，底板11设置有通槽111，如图4所示，第二限位部12的第一端12a连接于通槽111的内壁，第二限位部12的除了第一端12a的其他部分，均与通槽111的内壁具有间隙。
在加工第二限位部12时，形成上述通槽111，通槽111上间隙的设置还能够使第二限位部12具有一定的弹性，在输出极底座1的插接部13插入端板2的插槽24的过程中，第二限位部12发生弹性变形，直至进入到卡孔22内。
作为一种可能的实现方式，通槽111具有开口111a，开口111a设置于远离第二限位部12的第一端12a。可以通过简单的切割工艺得到上述具有开口111a的通槽111，由此可以在采用较为简单工艺的情况下得到上述第二限位部12。另外，上述开口111a的设置也能使输出极底座1更加轻量化，进一步提高电池模组100的能量密度。
下文中将描述另一示例性实施例，但将省略与前述示例性实施例中的构成元件相同的详细描述，而仅仅详细描述不相似的构件元件。
图5为本申请实施例所提供的电池模组中另一种输出极底座的结构示意图，图6为图5的A处放大图。
作为一种可能的实现方式，如图5和图6所示，第二限位部12包括弹性段121。底板11设置有通槽111，弹性段121的第一端121a连接于通槽111的内壁，弹性段121的第二端121b凸出于底板11。
可选地，弹性段121的除了第一端121a的其他部分，均与通槽111的内壁具有间隙，由此能够提高弹性段121的弹性。
可以理解的是，上述的弹性段121可以是直接形成于底板11的弹片，该弹性段121也可以是块状，在其上开设相应的槽口，使弹性段121具有一定 的弹性即可。
上述的第二限位部12的结构中，通过弹性段121形成一个翘起的倾斜段，在插接部13插入插槽23的过程中，该翘起的倾斜段上的斜面结构能够形成导向作用，以便于第二限位部12进入端板2的卡孔22中。
下文中将描述另一示例性实施例，但将省略与前述示例性实施例中的构成元件相同的详细描述，而仅仅详细描述不相似的构件元件。
图7为本申请实施例所提供的电池模组中又一种输出极底座的结构示意图，图8为图7的B处放大图。
作为一种可能的实现方式，如图7和图8所示，第二限位部12包括固定段122和弹性段121，固定段122的第一端122a连接于通槽111的内壁，弹性段121的第一端121a连接于固定段122的第二端122b，弹性段121的第二端121b凸出于底板11。
上述的第二限位部12的结构，固定段122形成一个平直段，弹性段121形成一个翘起的倾斜段，在插接部13插入插槽23的过程中，该翘起的倾斜段上的斜面能够形成导向作用，以便于第二限位部12进入卡孔22。固定段122的设置能够在增加整个第二限位部12的长度尺寸，由此提高第二限位部12的弹性性能。
可以理解的是，上述的固定段122可以是直接形成于底板11的片状，该固定段122也可以是块状。在块状的固定段122上也可以开设槽口，使其具有一定的弹性。在块状的固定段122上也可以不设置槽口，通过弹性段121的弹性性能实现第二限位部12进入卡孔22中。
下文中将描述另一示例性实施例，但将省略与前述示例性实施例中的构成元件相同的详细描述，而仅仅详细描述不相似的构件元件。
图9为本申请实施例所提供的电池模组中输出极底座与端板配合后的主视图，图10为图9的C-C向剖视图。
作为一种可能的实现方式，如图9和图10所示，弹性段121的厚度(W1)小于固定段122的厚度(W2)，由此，利用相对较厚的固定段122保证第二限位部12的连接强度，利用相对较薄的弹性段121提高第二限位部12的弹 性性能。
需要说明的是，弹性段121的厚度(W1)和固定段122的厚度(W2)均是指平均厚度。
上述第二限位部12可以具有曲面结构或斜面结构，上文中，弹性段121能够形成斜面结构。作为一种可能的实现方式，弹性段121与固定段122之间的夹角θ满足：90°＜θ＜180°，从而形成弹性段121的斜面结构，这样能够有利于输出极底座1的插接装配。
需要说明的是，弹性段121与固定段122之间的夹角θ指的是弹性段121凸出于底板11的一面(参照图8)与固定段122凸出于底板11的一面之间的夹角。
可选地，弹性段121与固定段122之间的夹角θ满足：135°＜θ＜170°，该角度能够有助于斜面结构的导向作用且不会破坏第二限位部12。
本申请实施例提供的电池模组100中，第二限位部12的数量可以是一个(参照图4)，也可以是两个(参照图5)，图11为本申请实施例所提供的电池模组中再一种输出极底座的结构示意图，如图11所示，第二限位部12的数量是三个。
根据第二限位部12的数量，可以设置对应的卡孔22为一个、两个或三个。当然，第二限位部12和卡孔22的数量还可以是更多个，在此不作进一步限定。
在图2所示的实施例中，卡孔22的数量是两个，两个孔壁221均为平面，在电池模组100的宽度方向(Y)上共面，此时与卡孔22配合的第二限位部12的弹性段121的第二端121b可以是平齐的状态，如图7所示。在另外的实施例中，孔壁221还可以是非平面，在另外的实施例中，卡孔22为两个以上，两个孔壁221相互平行但不共面。
作为一种可能的实现方式，如图5所示，第二限位部12的数量为两个以上。沿第二方向(X2)，两个以上的第二限位部12的弹性段121的第二端121b相互错开，两个以上的卡孔22中与第二限位部12相配合的孔壁221不共面。由此，第二限位部12有多种实现方式，能够适应不同形式的端板2。
以上所述仅为本申请的优选实施例而已，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(100)，其特征在于，包括：输出极底座(1)和端板(2)；所述输出极底座(1)和所述端板(2)插接配合；
    所述输出极底座(1)设置有第一限位部(14)，所述端板(2)设置有限位板(24)；所述第一限位部(14)与所述限位板(24)配合，能够限制所述输出极底座(1)与所述端板(2)在第一方向(X1)的相对运动；
    所述输出极底座(1)和所述端板(2)中的一者设置有卡孔(22)，另一者设置有第二限位部(12)，所述第二限位部(12)容纳于所述卡孔(22)；所述第二限位部(12)与所述卡孔(22)配合，能够限制所述输出极底座(1)与所述端板(2)在第二方向(X2)的相对运动；
    所述第一方向(X1)的延伸方向和所述第二方向(X2)的延伸方向相反。
  2. 根据权利要求1所述的电池模组(100)，其特征在于，所述端板(2)包括本体(21)；
    所述卡孔(22)沿电池模组(100)的高度方向(Z)开设于所述本体(21)；
    所述输出极底座(1)包括底板(11)，沿所述电池模组(100)的高度方向(Z)，所述第二限位部(12)凸出于所述底板(11)。
  3. 根据权利要求2所述的电池模组(100)，其特征在于，所述底板(11)设置有通槽(111)；
    所述第二限位部(12)的第一端(12a)连接于所述通槽(111)的内壁；
    所述第二限位部(12)的除了第一端(12a)的其他部分，均与所述通槽(111)的内壁具有间隙。
  4. 根据权利要求3所述的电池模组(100)，其特征在于，所述通槽(111)具有开口(111a)，所述开口(111a)设置于远离所述第二限位部(12)的第一端(12a)。
  5. 根据权利要求2-4中任意一项所述的电池模组(100)，其特征在于，所述第二限位部(12)包括弹性段(121)；
    所述底板(11)设置有通槽(111)；
    所述弹性段(121)的第一端(121a)连接于所述通槽(111)的内壁；
    所述弹性段(121)的第二端(121b)凸出于所述底板(11)。
  6. 根据权利要求2-5中任意一项所述的电池模组(100)，其特征在于，所述第二限位部(12)包括固定段(122)和弹性段(121)；
    所述固定段(122)的第一端(122a)连接于所述通槽(111)的内壁；
    所述弹性段(121)的第一端(121a)连接于所述固定段(122)的第二端(122b)；
    所述弹性段(121)的第二端(121b)凸出于所述底板(11)。
  7. 根据权利要求6所述的电池模组(100)，其特征在于，所述弹性段(121)的厚度(W1)小于所述固定段(122)的厚度(W2)。
  8. 根据权利要求6-7中任意一项所述的电池模组(100)，其特征在于，所述弹性段(121)与所述固定段(122)之间的夹角θ满足：90°＜θ＜180°。
  9. 根据权利要求8所述的电池模组(100)，其特征在于，所述弹性段(121)与所述固定段(122)之间的夹角θ满足：135°＜θ＜170°。
  10. 根据权利要求5-9任一项所述的电池模组(100)，其特征在于，所述第二限位部(12)的数量为两个以上；
    沿所述第二方向(X2)，两个以上的所述第二限位部(12)的所述弹性段(121)的第二端(121b)相互错开；
    两个以上的所述卡孔(22)中与所述第二限位部(12)相配合的孔壁(221)不共面。
PCT/CN2020/106465 2019-08-15 2020-07-31 电池模组 WO2021027601A1 (zh)

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