WO2021098465A1 - 箱体、电池包及设备 - Google Patents

箱体、电池包及设备 Download PDF

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Publication number
WO2021098465A1
WO2021098465A1 PCT/CN2020/124544 CN2020124544W WO2021098465A1 WO 2021098465 A1 WO2021098465 A1 WO 2021098465A1 CN 2020124544 W CN2020124544 W CN 2020124544W WO 2021098465 A1 WO2021098465 A1 WO 2021098465A1
Authority
WO
WIPO (PCT)
Prior art keywords
box
battery pack
box body
connecting portion
mounting plate
Prior art date
Application number
PCT/CN2020/124544
Other languages
English (en)
French (fr)
Inventor
黄海华
方伍梅
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 JP2022528115A priority Critical patent/JP7369295B2/ja
Priority to EP20889314.9A priority patent/EP3985787A4/en
Priority to KR1020227014927A priority patent/KR102613201B1/ko
Publication of WO2021098465A1 publication Critical patent/WO2021098465A1/zh
Priority to US17/699,804 priority patent/US11962023B2/en

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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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • 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
    • H01M50/249—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
    • 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
    • H01M50/289—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

Definitions

  • This application relates to the field of energy storage devices, in particular to a box, a battery pack and equipment.
  • the battery module includes battery cells and end plates and side plates for fixing the battery cells.
  • the end plates and side plates can be omitted, and the battery cells can be directly installed in the battery box after being grouped.
  • the structure in the box is prone to burrs at the joints, which will puncture the insulating film on the outside of the battery cells. Broken or damaged, causing short circuit of the battery cells, causing battery safety issues.
  • This application provides a box, battery pack and equipment to solve the problems in the prior art and improve the safety of the battery.
  • One aspect of the present application provides a box for a battery pack, which includes a first beam and a second beam.
  • the first beam and the second beam are intersected and connected by a connecting part, and divide the box body to form a plurality of accommodating spaces.
  • the first beam includes a body and a recessed portion, the recessed portion is recessed inward relative to the body; the connecting portion is arranged in the recessed portion.
  • the recessed portion includes a recessed surface, the recessed surface is located on both sides of the recessed portion, and the connecting portion is disposed on the recessed surface.
  • the concave portion is provided with a first slot
  • the second beam is provided with a second slot
  • the first beam and the second beam are plug-connected through the first slot and the second slot.
  • first mounting boards are provided on both sides of the second slot.
  • the first mounting plate is connected with the recessed portion.
  • the connecting portion is arranged on the side of the first mounting plate.
  • a second mounting plate is provided at the bottom of the second beam.
  • the bottom of the box body is also provided with a bottom plate; the second mounting plate is connected to the bottom plate.
  • the second mounting plate is provided with a notch, and the notch is used to avoid the recessed portion.
  • the width dimension of the notch is greater than the width dimension of the recessed portion.
  • the connecting portion is a weld.
  • a battery pack which includes:
  • Another aspect of the present application provides a device, which includes: the above-mentioned battery pack, and the battery pack is used to provide electric energy.
  • the box includes a first beam and a second beam.
  • the first beam and the second beam are intersected and connected by a connecting portion, and the box is divided to form a plurality of accommodating parts. space.
  • the first beam includes a body and a recessed portion.
  • the recessed portion is recessed inward with respect to the body.
  • the connecting portion is provided in the recessed portion. By providing the recessed portion on the first beam, the connecting portion is provided in the recessed portion.
  • connection position of the battery cell does not protrude from the side surface of the first beam, which prevents the battery cell from being short-circuited by puncturing or damaging the outer insulating film of the battery cell, thereby improving the safety performance of the battery.
  • FIG. 1 is a schematic diagram of the structure of a battery pack provided by an embodiment of the application
  • FIG. 2 is a schematic structural diagram of a box for a battery pack provided by an embodiment of the application.
  • Figure 3 is an enlarged view of A in Figure 2;
  • FIG. 4 is an exploded schematic diagram of a box for a battery pack provided by an embodiment of the application.
  • Figure 5 is an enlarged view of B in Figure 4.
  • Fig. 6 is a schematic structural diagram of a longitudinal beam in a box provided by an embodiment of the application.
  • Fig. 7 is an enlarged view of C in Fig. 6.
  • the embodiment of the present application provides a device, which may include electric vehicles, ships, small airplanes, and energy storage cabinets.
  • the vehicle may include a battery pack and a vehicle body, and the battery pack is disposed on the vehicle body.
  • the vehicle body is also provided with a drive motor, and the drive motor is electrically connected to the battery pack, and the battery pack provides electric energy.
  • the drive motor is connected to the wheels on the vehicle body through a transmission mechanism to drive the vehicle to travel.
  • the battery pack may be arranged at the bottom of the vehicle body.
  • FIG. 1 is a schematic structural diagram of a battery pack provided by an embodiment of the application.
  • an embodiment of the present application provides a battery pack 100, which includes a box body 1 and a battery cell 2, and the battery cell 2 is accommodated in The accommodating space 15 of the box body 1.
  • the battery pack 100 may also include an upper cover (not shown), which is connected to the box body 1 to enclose the battery cells 2 in the box body 1.
  • the box, battery pack, and equipment provided in the embodiments of the present application can solve the above-mentioned technical problems in the prior art.
  • FIG. 2 is a schematic structural diagram of a box for a battery pack provided by an embodiment of the application
  • FIG. 3 is an enlarged view of A in FIG. 2.
  • an embodiment of the present application also provides a box body 1 for a battery pack 100, and the box body 1 includes a first beam 11 and a second beam 12.
  • the first beam 11 may be a cross beam extending along the width direction Y of the battery pack 100
  • the second beam 12 is a longitudinal beam extending along the length direction X of the battery pack 100.
  • the first beam 11 may also be a longitudinal beam
  • the second beam 12 is a cross beam, which is not further limited herein.
  • the first beam 11 is a cross beam
  • the second beam 12 is a longitudinal beam.
  • the first beam 11 extends along the width direction Y of the battery pack 100
  • the second beam 12 extends along the length direction X of the battery pack 100.
  • the first beam 11 may be one or more
  • the second beam 12 may also be one or more.
  • the first beam 11 and the second beam 12 are intersected and connected by a connecting portion 14, and divide the box body 1 to form a plurality of accommodating spaces 15 for accommodating battery cells 2.
  • the first beam 11 includes a body 111 and a recessed portion 112, and the body 111 and the recessed portion 112 may be integrally formed.
  • the recessed portion 112 is recessed inward with respect to the main body 111, and the connecting portion 14 is disposed in the recessed portion 112.
  • the first beam 11 is provided with a recessed portion 112, and the connecting portion 14 is provided at the recessed portion 112. In this way, the connecting position of the first beam 11 and the second beam 12 will not be separated from the first beam 11.
  • the side surface of 11 is protruding. Without the protection of end plates and side plates, the box 1 provided by the embodiment of the present application can prevent the burrs of the box 1 from piercing or damaging the outer insulating film of the battery cell 2. This causes a short circuit of the battery cell 2, thereby improving the safety performance of the battery.
  • the first beam 11 is a cross beam. As shown in FIG. 3, the recessed portion 112 is recessed along the length direction X. In other embodiments, the recessed portion 112 may be disposed on the second beam 12, the second beam 12 is a longitudinal beam, and the recessed portion 112 is recessed along the width direction Y.
  • FIG. 4 is an exploded schematic diagram of a box for a battery pack provided by an embodiment of the application
  • FIG. 5 is an enlarged view of B in FIG. 4, as shown in FIG. 4 and FIG. 5, in a specific embodiment
  • the recessed portion 112 includes a recessed surface 112 a located on both sides of the recessed portion 112, and the connecting portion 14 is disposed on the recessed surface 112 a, and the recessed surface 112 a may be substantially parallel to the extending direction of the first beam 11.
  • the concave surface 112a can be integrally stamped and formed on the main body 111.
  • the arrangement of the concave surface 112a can provide enough space to accommodate the connecting portion 14 so that the connecting portion 14 can not protrude from the two parts of the main body 111 of the first beam 11. side. After the battery cell 2 is installed in the box 1, the connecting portion 14 will not damage the insulating film outside the battery cell 2.
  • the concave portion 112 is provided with a first slot 113, and the first slot 113 can be formed by cutting the concave portion 112.
  • the second beam 12 is provided with a second slot 121.
  • the second slot 121 can be formed by cutting the second beam 12.
  • the first beam 11 and the second beam 12 pass through the first slot 113 and The second slot 121 is plugged and connected. After the first slot 113 and the second slot 121 are inserted, the first beam 11 and the second beam 12 are connected through the connecting portion 14.
  • first beams 11 there may be multiple first beams 11, multiple first beams 11 may be arranged substantially in parallel, and the second beam 12 may be one.
  • the second slot 121 in the second beam 12 it is not necessary to The second beam 12 is disconnected, and the second beam 12 can be connected to a plurality of first beams 11 in an integral structure, so that the overall strength of the first beam 11 and the second beam 12 can be improved.
  • the first slot 113 in the recess 112 of the first beam 11 and the second slot 121 in the second beam 12 the overall height of the first beam 11 and the second beam 12 can be reduced, and the box body 1 can be reduced.
  • the overall space occupied on equipment such as electric vehicles).
  • FIG. 6 is a schematic structural diagram of a longitudinal beam in a box provided by an embodiment of the application
  • FIG. 7 is an enlarged view of C in FIG. 6.
  • first mounting plates 122 are provided on both sides of the second slot 121, and the first mounting plates 122 are connected to the recess 112.
  • the first mounting board 122 may be directly formed on both sides of the second slot 121 by a flanging process.
  • the first mounting plate 122 may be surface-to-surface abutment with the recessed surface 112 a of the recessed portion 112, and the connecting portion 14 is arranged around the circumference of the first mounting plate 122.
  • the arrangement of the first mounting plate 122 can prevent the connecting portion 14 from being arranged at the right-angle connection of the first beam 11 and the second beam 12. Since the connecting portion 14 is not arranged at the right-angle connection of the first beam 11 and the second beam 12, but is arranged in the recessed portion 112, it can not only avoid stress concentration, but also increase the connection area of the connecting portion 14 and improve the first beam.
  • the connecting portion 14 is disposed on the side of the first mounting board 122.
  • the first mounting plate 122 has a substantially rectangular plate shape, which is directly folded from the position of the second slot 121, and the remaining three of the first mounting plate 122 except for the side connecting the second slot 121
  • the above-mentioned connecting portion 14 can be provided on both sides.
  • the connecting portion 14 may be a welding seam, which is formed by welding around the aforementioned three sides of the first mounting plate 122.
  • the weld as the connecting portion 14 may be a continuous weld or a segmented weld, which is not further limited herein.
  • the welding seam connects the first mounting plate 122 with the concave surface 112a of the concave portion 112 and is located on the concave surface 112a.
  • the welding seam as the connecting portion 14 does not protrude from the side surface of the main body 111, nor does it protrude from the first mounting plate 122.
  • the mounting plate 122 faces one side of the battery cell 2 so as not to damage the insulating film of the battery cell 2.
  • the bottom of the second beam 12 is provided with a second mounting plate 123.
  • the bottom of the box body 1 is also provided with a bottom plate 13, and the second mounting plate 123 is connected to the bottom plate. 13.
  • the second mounting plate 123 may be formed on the bottom of the second beam 12 through a bending process, and the second beam 12 is connected to the bottom plate 13 through the second mounting plate 123, thereby improving the reliability of the connection between the second beam 12 and the bottom plate 13.
  • the second mounting board 123 and the bottom plate 13 may be connected through a welding process, or may be connected through other processes.
  • a third mounting plate 114 is provided at the bottom of the first beam 11, and the third mounting plate 114 is connected to the bottom plate 13.
  • the third mounting plate 114 may be formed on the bottom of the first beam 11 through a bending process, and the first beam 11 is connected to the bottom plate 13 through the third mounting plate 114, thereby improving the reliability of the connection between the first beam 11 and the bottom plate 13.
  • the third mounting board 114 and the bottom plate 13 may be connected through a welding process, or may be connected through other processes.
  • the second mounting plate 123 is provided with a notch 123 a, and the notch 123 a is used to avoid the recess 112.
  • the notch 123a can be formed by cutting the second mounting plate 123a after bending to form the second mounting plate 123, or the notch 123a can be formed by cutting first to form a segmented second mounting plate 123 after bending.
  • the second beam 12 and the first beam 11 can be further made easier. assembly. After the second slot 121 of the second beam 12 is inserted into the first slot 113 of the first beam, the connecting portion 14 can be formed by a welding process, thereby connecting the first beam 11 and the second beam 12.
  • the box body 1 includes a first beam 11 and a second beam 12, and the first beam 11 and the second beam 12 are intersected and pass through
  • the connecting portion 14 is connected and divides the box 1 to form a plurality of accommodating spaces 15, and the accommodating spaces 15 can accommodate the battery cells 2.
  • the first beam 11 includes a body 111 and a recessed portion 112.
  • the recessed portion 112 is recessed inward relative to the body 111.
  • the connecting portion 14 is provided in the recessed portion 112. By providing the recessed portion 112 on the first beam 11, the connecting portion 14 is provided in the recessed portion. 112.
  • connection position of the first beam 11 and the second beam 12 does not protrude from the side surface of the first beam 11, preventing the battery cell 2 from piercing or damaging the outer insulating film and causing a short circuit of the battery cell , Improve the safety performance of the battery.

Abstract

一种箱体（1）、电池包（100）及设备，涉及储能器件技术领域。该箱体（1）包括第一梁(11)和第二梁(12)；第一梁(11)和第二梁(12)相交设置且通过连接部(14)相连接，并将所述箱体(1)分隔形成多个容纳空间(15)。第一梁(11)包括本体(111)和凹陷部(112)，凹陷部(112)相对于本体(111)向内凹陷；连接部(14)设置于凹陷部(112)。所提供的箱体（1）、电池包（100）及设备中，箱体（1）包括第一梁(11)和第二梁(12)，二者相交设置且通过连接部(14)相连接，并将所述箱体(1)分隔形成多个容纳空间(15)。第一梁(11)包括本体(111)和凹陷部(112)，凹陷部(112)相对于本体(111)向内凹陷，连接部(14)设置于凹陷部(112)，通过在第一梁(11)设置凹陷部(112)，连接部(14)设置于凹陷部(112)，这样，第一梁(11)和第二梁(12)的连接位置不会从第一梁(11)的侧表面凸出，防止将电池单体(2)的外部的绝缘膜刺破或损伤造成电池单体(2)的短路，提高了电池的安全性能。

Description

箱体、电池包及设备
相关申请的交叉引用
本申请要求享有于2019年11月21日提交的名称为“箱体、电池包及设备”的中国专利申请201922027008.8的优先权，该申请的全部内容通过引用并入本申请中。
技术领域
本申请涉及储能器件领域，尤其涉及一种箱体、电池包及设备。
背景技术
电池模组在经过串、并联后，被安装于电池箱内。电池模组包括电池单体和用于固定电池单体的端板和侧板。
为了减重，可以省去端板和侧板，将电池单体成组后直接安装在电池箱内，但是，箱体内的结构在连接处容易产生毛刺，会将电池单体外部的绝缘膜刺破或损伤，造成电池单体的短路，引发电池安全问题。
发明内容
本申请提供了一种箱体、电池包及设备，以解决现有技术中的问题，提升电池的安全性。
本申请一方面提供了一种用于电池包的箱体，包括：第一梁和第二梁。
第一梁和第二梁相交设置且通过连接部相连接，并将箱体分隔形成多个容纳空间。
第一梁包括本体和凹陷部，凹陷部相对于本体向内凹陷；连接部设置于凹陷部。
在一种可能实施方式中，凹陷部包括凹陷面，凹陷面位于凹陷部的两侧，连接部设置于凹陷面。
在一种可能实施方式中，凹陷部设置有第一插槽，第二梁设置有第二插槽，第一梁和第二梁通过第一插槽和第二插槽插接连接。
在一种可能实施方式中，第二插槽的两侧设置有第一安装板。
第一安装板与凹陷部连接。
在一种可能实施方式中，连接部设置于第一安装板的边侧。
在一种可能实施方式中，第二梁的底部设置有第二安装板。
箱体的底部还设置有底板；第二安装板连接于底板。
在一种可能实施方式中，第二安装板设置有槽口，槽口用于避让凹陷部。
在一种可能实施方式中，槽口的宽度尺寸大于凹陷部的宽度尺寸。
在一种可能实施方式中，连接部为焊缝。
本申请的另一方面提供了一种电池包，其中，包括：
上述任一项的箱体；以及
容纳于箱体的容纳空间内的电池单体。
本申请的又一方面提供了一种设备，其中，包括：上述的电池包，电池包用于提供电能。
本申请提供的技术方案可以达到以下有益效果：
本申请所提供的箱体、电池包及设备中，箱体包括第一梁和第二梁，第一梁和第二梁相交设置且通过连接部相连接，并将箱体分隔形成多个容纳空间。第一梁包括本体和凹陷部，凹陷部相对于本体向内凹陷，连接部设置于凹陷部，通过在第一梁设置凹陷部，连接部设置于凹陷部，这 样，第一梁和第二梁的连接位置不会从第一梁的侧表面凸出，防止将电池单体的外部的绝缘膜刺破或损伤造成电池单体的短路，提高了电池的安全性能。
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包的结构示意图；
图2为本申请实施例所提供的用于电池包的箱体的结构示意图；
图3为图2中的A处放大图；
图4为本申请实施例所提供的用于电池包的箱体的分解示意图；
图5为图4中的B处放大图；
图6为本申请实施例所提供的箱体中纵梁的结构示意图；
图7为图6中的C处放大图。
附图标记：
100-电池包；
1-箱体；
11-第一梁；
111-本体；
112-凹陷部；
112a-凹陷面；
113-第一插槽；
114-第三安装板；
12-第二梁；
121-第二插槽；
122第一安装板；
123-第二安装板；
123a-槽口；
13-底板；
14-连接部；
15-容纳空间；
2-电池单体。
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，本申请中使用的术语“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，本申请中字符 “/”，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”。
本申请实施例提供了一种设备，该设备可以包括电动车辆、船舶、小型飞机以及储能电柜等，以车辆为例，该车辆可包括电池包和车辆主体，该电池包设置于车辆主体，该车辆主体还设置有驱动电机，且驱动电机与电池包电连接，由电池包提供电能，驱动电机通过传动机构与车辆主体上的车轮连接，从而驱动车辆行进。在一种具体的实施例中，该电池包可设置在车辆主体的底部。
图1为本申请实施例所提供的电池包的结构示意图，如图1所示，本申请实施例提供了一种电池包100，包括箱体1和电池单体2，电池单体2容纳于箱体1的容纳空间15。电池单体2可以是多个，多个电池单体2相互堆叠，并容纳于该容纳空间15。该电池包100还可以包括上盖(未示出)，连接于箱体1，将电池单体2封闭于箱体1内。
在现有技术中，为了减重，省去了端板和侧板对电池单体2的固定，而是直接将电池单体2设置于箱体1中，这样会带来箱体1的毛刺对电池单体2造成刺伤或损伤的问题，本申请实施例提供的箱体、电池包及设备能够解决现有技术中的上述技术问题。
图2为本申请实施例所提供的用于电池包的箱体的结构示意图，图3为图2中的A处放大图。如图1和图2所示，本申请实施例还提供了一种用于电池包100的箱体1，该箱体1包括第一梁11和第二梁12。在一种实施例中，第一梁11可以是横梁，沿电池包100的宽度方向Y延伸，第二梁12为纵梁，沿电池包100的长度方向X延伸。在其他的实施例中，第一梁11也可以是纵梁，对应地，第二梁12为横梁，在此不作进一步限定。
如图2和3所示，本实施例中，第一梁11为横梁，第二梁12为纵 梁。第一梁11沿电池包100的宽度方向Y延伸，第二梁12沿电池包100的长度方向X延伸。第一梁11可以是一根或多根，第二梁12也可以是一根或多根。第一梁11和第二梁12相交设置且通过连接部14相连接，并将箱体1分隔形成多个容纳空间15，用于容纳电池单体2。
如图3所示，第一梁11包括本体111和凹陷部112，本体111和凹陷部112可以是一体成型而成。凹陷部112相对于本体111向内凹陷，连接部14设置于凹陷部112。
本申请实施例提供的箱体1，通过在第一梁11设置凹陷部112，连接部14设置于凹陷部112，这样，第一梁11和第二梁12的连接位置不会从第一梁11的侧表面凸出，在没有端板和侧板保护的情况下，本申请实施例提供的箱体1能够防止箱体1的毛刺将电池单体2的外部的绝缘膜刺破或损伤，造成电池单体2的短路，从而提高了电池的安全性能。
本实施例中，第一梁11为横梁，如图3所示，凹陷部112沿长度方向X凹陷。在其他的实施例中，凹陷部112可以设置于第二梁12，第二梁12为纵梁，凹陷部112沿宽度方向Y凹陷。
图4为本申请实施例所提供的用于电池包的箱体的分解示意图，图5为图4中的B处放大图，如图4和图5所示，在一种具体的实施方式中，凹陷部112包括凹陷面112a，凹陷面112a位于凹陷部112的两侧，连接部14设置于凹陷面112a，该凹陷面112a可以大致平行于第一梁11的延伸方向。
该凹陷面112a可以在本体111上通过一体冲压成型，凹陷面112a的设置，能够提供足够的空间来容纳连接部14，从而使连接部14能够不凸出于第一梁11的本体111的两侧。在电池单体2被装入箱体1后，连接部14不会对电池单体2外部的绝缘膜造成损伤。
如图5所示，在一种具体的实施方式中，凹陷部112设置有第一插槽113，该第一插槽113可以通过在凹陷部112切割而成。如图7所示，第二梁12设置有第二插槽121，第二插槽121可以通过在第二梁12切割而成，第一梁11和第二梁12通过第一插槽113和第二插槽121插接连接。在第一插槽113和第二插槽121插接后，再通过连接部14将第一梁 11和第二梁12连接。
本实施例中，第一梁11可以有多根，多根第一梁11大致平行地设置，第二梁12可以为一根，通过在第二梁12设置第二插槽121，可以不必将第二梁12断开，第二梁12可以采用整体的结构与多根第一梁11连接，从而能够提高第一梁11与第二梁12的整体强度。另外，通过在第一梁11的凹陷部112设置第一插槽113，在第二梁12设置第二插槽121能够降低第一梁11和第二梁12的整体高度，减少了箱体1在设备(如电动汽车)上的整体占用空间。
图6为本申请实施例所提供的箱体中纵梁的结构示意图，图7为图6中的C处放大图。在一种具体的实施方式中，如图6和图7所示，第二插槽121的两侧设置有第一安装板122，第一安装板122与凹陷部112连接。
本实施例中，第一安装板122可以是通过在翻边工艺直接形成于第二插槽121的两侧。第一安装板122可以与凹陷部112的凹陷面112a为面面贴合，连接部14围绕第一安装板122周侧设置。第一安装板122的设置，能够避免连接部14设置在第一梁11和第二梁12的直角连接处。由于连接部14没有设置在第一梁11和第二梁12的直角连接处，而是设置在凹陷部112，不仅能够避免应力集中，还能增大连接部14的连接面积，提高了第一梁11和第二梁12的连接强度。
在一种具体的实施方式中，参照图3，连接部14设置于第一安装板122的边侧。具体地，第一安装板122为大致的矩形板状，从第二插槽121的位置直接翻折而成，第一安装板122的除了连接第二插槽121的边之外的其余三个边侧均可以设置上述连接部14。
本实施例中，连接部14可以是焊缝，围绕第一安装板122的上述三个侧边焊接形成。本领域技术人员可以理解的是，作为连接部14的焊缝可以是连续的焊缝，也可以是分段式的焊缝，在此不作进一步的限定。
这样，焊缝将第一安装板122与凹陷部112的凹陷面112a连接，且位于凹陷面112a，作为连接部14的焊缝不凸出于本体111的侧面，也不会凸出于第一安装板122朝向电池单体2的一侧，从而不会对电池单体2 的绝缘膜造成损坏。
在一种具体的实施方式中，参照图6，第二梁12的底部设置有第二安装板123，参照图4，箱体1的底部还设置有底板13，第二安装板123连接于底板13。
第二安装板123可以通过折弯工艺形成于第二梁12的底部，第二梁12通过第二安装板123与底板13连接，从而提高了第二梁12与底板13的连接可靠性。第二安装板123与底板13可以通过焊接工艺连接，也可以通过其他工艺连接。
在一种具体的实施方式中，参照图5，第一梁11的底部设置有第三安装板114，第三安装板114连接于底板13。第三安装板114可以通过折弯工艺形成于第一梁11的底部，第一梁11通过第三安装板114与底板13连接，从而提高了第一梁11与底板13的连接可靠性。第三安装板114与底板13可以通过焊接工艺连接，也可以通过其他工艺连接。
在一种具体的实施方式中，参照图7，第二安装板123设置有槽口123a，槽口123a用于避让凹陷部112。槽口123a可以在折弯形成第二安装板123后，在第二安装板123a上切割形成，也可以先切割形成该槽口123a，在弯折形成分段式的第二安装板123。
如图4所示，在将第二梁12与第一梁11连接时，可参照图4所示的状态，自上而下将第二梁12的第二插槽121插入第一梁11的第一插槽113，在两个插槽的插接过程中，由于第二安装板123设置有槽口123能够避让凹陷部112，而不会使第二安装板123与凹陷部112产生干涉，从而使第二梁12与第一梁11的装配更顺畅。
在一种具体的实施方式中，如图5和图7所示，通过设置槽口123a的宽度尺寸W1大于凹陷部112的宽度尺寸W2，能够进一步使第二梁12与第一梁11更容易装配。在将第二梁12的第二插槽121与第一梁的第一插槽113插接后，即可以通过焊接工艺形成连接部14，从而将第一梁11和第二梁12相连接。
综上所述，本申请实施例所提供的箱体1、电池包100及设备中，箱体1包括第一梁11和第二梁12，第一梁11和第二梁12相交设置且通 过连接部14相连接，并将箱体1分隔形成多个容纳空间15，容纳空间15能容纳电池单体2。第一梁11包括本体111和凹陷部112，凹陷部112相对于本体111向内凹陷，连接部14设置于凹陷部112，通过在第一梁11设置凹陷部112，连接部14设置于凹陷部112，这样，第一梁11和第二梁12的连接位置不会从第一梁11的侧表面凸出，防止将电池单体2的外部的绝缘膜刺破或损伤造成电池单体的短路，提高了电池的安全性能。
以上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 (11)

  1. 一种用于电池包的箱体(1)，包括：第一梁(11)和第二梁(12)；
    所述第一梁(11)和所述第二梁(12)相交设置且通过连接部(14)相连接，并将所述箱体(1)分隔形成多个容纳空间(15)；
    所述第一梁(11)包括本体(111)和凹陷部(112)，所述凹陷部(112)相对于所述本体(111)向内凹陷；所述连接部(14)设置于所述凹陷部(112)。
  2. 根据权利要求1所述的箱体(1)，其中，所述凹陷部(112)包括凹陷面(112a)，所述凹陷面(112a)位于所述凹陷部(112)的两侧，所述连接部(14)设置于所述凹陷面(112a)。
  3. 根据权利要求1或2所述的箱体(1)，其中，所述凹陷部(112)设置有第一插槽(113)，所述第二梁(12)设置有第二插槽(121)，所述第一梁(11)和所述第二梁(12)通过所述第一插槽(113)和所述第二插槽(121)插接连接。
  4. 根据权利要求3所述的箱体(1)，其中，所述第二插槽(121)的两侧设置有第一安装板(122)；
    所述第一安装板(122)与所述凹陷部(112)连接。
  5. 根据权利要求4所述的箱体(1)，其中，所述连接部(14)设置于所述第一安装板(122)的边侧。
  6. 根据权利要求1-5任一项所述的箱体(1)，其中，所述第二梁(12)的底部设置有第二安装板(123)；
    所述箱体(1)的底部还设置有底板(13)；所述第二安装板(123)连接于所述底板(13)。
  7. 根据权利要求6所述的箱体(1)，其中，所述第二安装板(123)设置有槽口(123a)，所述槽口(123a)用于避让所述凹陷部(112)。
  8. 根据权利要求7所述的箱体(1)，其中，所述槽口(123a)的宽度尺寸(W1)大于所述凹陷部(112)的宽度尺寸(W2)。
  9. 根据权利要求1-8任一项所述的箱体(1)，其中，所述连接部(14)为焊缝。
  10. 一种电池包(100)，包括：
    权利要求1-9任一项所述的箱体(1)；以及
    容纳于所述箱体(1)的所述容纳空间(15)内的电池单体(2)。
  11. 一种设备，包括：权利要求10所述的电池包(100)，所述电池包(100)用于提供电能。
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