WO2023030243A1 - 电池包和车辆 - Google Patents

电池包和车辆 Download PDF

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Publication number
WO2023030243A1
WO2023030243A1 PCT/CN2022/115476 CN2022115476W WO2023030243A1 WO 2023030243 A1 WO2023030243 A1 WO 2023030243A1 CN 2022115476 W CN2022115476 W CN 2022115476W WO 2023030243 A1 WO2023030243 A1 WO 2023030243A1
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WO
WIPO (PCT)
Prior art keywords
clamping
battery pack
battery
plate
battery case
Prior art date
Application number
PCT/CN2022/115476
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English (en)
French (fr)
Inventor
李华
郭军
冯攀
Original Assignee
北京车和家信息技术有限公司
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Publication date
Application filed by 北京车和家信息技术有限公司 filed Critical 北京车和家信息技术有限公司
Publication of WO2023030243A1 publication Critical patent/WO2023030243A1/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
    • H01M50/233—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
    • H01M50/24—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 adapted for protecting batteries from their environment, e.g. from corrosion
    • 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
    • H01M50/258—Modular batteries; Casings provided with means for assembling

Definitions

  • the present disclosure relates to the technical field of automobiles, in particular to a battery pack and a vehicle.
  • the more common solution is to use stamped bottom guard plate and reinforced beam welding, and fix it on the box as a whole; in order to improve the rigidity of the bottom guard plate, the traditional solution will also be on the bottom guard plate Increase the middle fixed point.
  • the common intermediate fixed point scheme needs to punch holes on the stamped bottom guard plate and fix it with screws. Each fixed point of this scheme is a sealing point. Due to the existence of intermediate fixed points, the risk of seal failure will be increased and the bottom seal will be reduced. Safety factor.
  • Embodiments of the present disclosure provide a battery pack and a vehicle.
  • An embodiment of the present disclosure provides a battery pack, including a battery case and a bottom guard plate disposed below the battery case, and the battery case and the bottom guard plate are connected by a snap-fit structure.
  • the clamping structure includes a first clamping piece and a second clamping piece that cooperate with each other, and one of the first clamping piece and the second clamping piece is disposed on the On the battery case, the other is correspondingly arranged on the bottom guard plate.
  • the bottom guard plate is provided with a plurality of reinforcement ribs, and the first clip is provided on the reinforcement ribs; the inside of the battery box is provided with longitudinal beams, and the second The clamping piece is arranged at the bottom of the battery box and is located at the intersection of the longitudinal beam and the reinforcing rib.
  • the first clamping member includes a bottom plate, the edge of the bottom plate is bent upwards to form at least two clamping plates, at least two clamping plates are oppositely arranged, and at least two clamping plates A clamping space for accommodating the second clamping part is formed between the connecting plates, and a clamping part for fitting the second clamping part is provided on the clamping plate.
  • the clamping part includes a slot, the second clamping part protrudes into the clamping space, and the edge of the second clamping part can be correspondingly clamped into the card slot.
  • an end of the clamping plate away from the bottom plate is inclined outward to form a guide section, and the guide section is used to guide the second clamping member to enter the clamping space.
  • the reinforcing rib is recessed downwards to form an accommodating groove, and the first engaging member is disposed in the accommodating groove.
  • the second clamping member includes a connecting member extending downward along the bottom surface of the battery case and extending in a direction parallel to the bottom surface of the battery case at the end of the connecting member.
  • the snap-in block is arranged correspondingly to the snap-in plate, and is used for snap-fitting with the snap-in portion.
  • a guide surface is formed on the surface of the locking block opposite to the bottom surface of the battery box, and the guiding surface extends away from the battery box from the center of the locking block to the edge.
  • the orientation of the bottom surface is inclined.
  • the edge of the battery box is connected to the bottom guard plate through fasteners.
  • Embodiments of the present disclosure also provide a vehicle, including the battery pack described in any one of the above.
  • a clamping mechanism is provided between the battery case and the bottom guard to connect the battery case and the bottom guard together.
  • the battery box and the bottom guard plate can be connected together through the clamping structure.
  • the number of openings on the battery box body and the bottom guard plate is reduced, and the battery capacity is improved.
  • the bottom of the bag is sealed with safety factor and assembly efficiency.
  • FIG. 1 is a schematic structural diagram of a battery pack according to some embodiments of the present disclosure
  • Fig. 2 is a schematic structural diagram of the clamping structure described in some embodiments of the present disclosure
  • Fig. 3 is a schematic structural diagram of the bottom guard plate described in some embodiments of the present disclosure.
  • FIG. 4 is a partially enlarged view of the first clamping member in FIG. 3 .
  • the embodiment of the present disclosure provides a battery pack, including a battery case 1 and a bottom guard plate 2 arranged under the battery case 1 , between the battery case 1 and the bottom guard plate 2 Connected by snap-in structure.
  • the clamping structure is arranged in the middle of the battery case 1, the edges of the battery case 1 and the bottom guard plate 2 are fixed by fasteners 3, and the middle part is fixed by the clamping structure. In this way, when assembling, it is only necessary to connect the battery case 1 and the bottom guard plate 2 together through a snap-fit structure. And the number of openings on the bottom guard plate 2 improves the bottom sealing safety system and assembly efficiency of the battery pack.
  • the clamping structure includes a first clamping part 5 and a second clamping part that cooperate with each other, and one of the first clamping part 5 and the second clamping part is arranged on On the battery case 1 , the other is correspondingly arranged on the bottom guard plate 2 .
  • first clamping part 5 and the second clamping part are clamped together to realize the connection between the battery box 1 and the bottom guard plate 2.
  • the first clamping part 5 and the second clamping part are in the battery box
  • the positions on the body 1 and the bottom guard plate 2 can be interchanged, as long as the clamping and fixing of the two can be realized.
  • a plurality of reinforcing ribs 21 are arranged on the bottom guard plate 2 , the first clamping member 5 is arranged on the reinforcing ribs 21 , and the interior of the battery box 1 is provided with There is a longitudinal beam, and the second clip is arranged at the bottom of the battery box 1 and at the intersection of the longitudinal beam and the reinforcing rib 21 .
  • the number of reinforcing ribs 21 is multiple, and each reinforcing rib 21 is provided with a plurality of first clamping parts 5 at intervals along the length direction, and the number of second clamping parts is equal to the number of first clamping parts 5. And one-to-one corresponding settings.
  • the position of the second clamping member is not limited to be set on the longitudinal beam of the battery box, but can also be set on the beam of the battery box 1 or other positions, mainly to ensure that the first clamping member 5 and the second clamping member
  • the clamping parts can be arranged relatively.
  • the reinforcing rib 21 is a structure that the bottom guard plate 2 itself has. Relatedly, when the bottom guard plate 2 and the battery box 1 are installed, both the edge and the middle position are fixed together by bolts. In the embodiment of the present disclosure, the bolt fixing at the middle position is replaced by snap-fitting. , using the reinforcing rib 21 itself to set the first clamping piece 5, and using the longitudinal beam of the battery box 1 to set the second clamping piece, so as to realize the clamping and fixing of the battery box 1 and the bottom guard plate 2.
  • the first clamping member 5 includes a bottom plate 501 , and the edge of the bottom plate 501 is bent upwards to form at least two clamping plates 502 , at least two The clamping plates 502 are arranged oppositely, and a clamping space for accommodating the second clamping piece is formed between at least two clamping plates 502.
  • the clamping plate 502 is provided with a clamping joint for cooperating with the second clamping piece department.
  • the shape of the bottom plate 501 is rectangular, and the four edges of the bottom plate 501 can be bent upwards to form four locking plates 502, or at least two edges can be bent upwards to form at least two Clamping plates 502, when there are only two clamping plates 502, the two clamping plates 502 should be arranged oppositely, so that a clamping space can be formed between the clamping plates 502, and when assembling, the second clamping parts correspond to Push it into the clamping space, and use the clamping part on the first clamping part 5 to clamp the second clamping part to realize the connection between the battery case 1 and the bottom guard plate 2 .
  • the clamping part may be configured as a slot 502a or a clamping block.
  • the clamping part includes a slot 502a provided on the clamping plate 502, and the second clamping part extends into into the clamping space, and the edge of the second clamping member can be correspondingly clamped into the clamping slot 502a.
  • the clamping groove 502a can be set at the bottom of the clamping plate 502, that is, the bend where the clamping plate 502 and the bottom plate 501 are connected, the bottom of the second clamping member is a plane, and when the edge of the second clamping member engages When inserted into the clamping groove 502a, the bottom surface of the second clamping member is attached to the bottom plate 501, which improves the stability of the clamping structure and prevents shaking when the battery case 1 is connected to the bottom guard plate 2.
  • the end of the clamping plate 502 away from the bottom plate 501 is inclined outward to form a guide section 502b, and the guide section 502b is used to guide the second clamping member into the clamping space.
  • the guide section 502b is used to guide the second clamping member into the clamping space.
  • two clamping plates 502 are arranged opposite to each other, and the upper ends of the clamping plates 502 are inclined in a direction away from each other to form an upper end on the upper ends of the clamping plates 502 .
  • the guide section 502b with a large opening and a small opening at the lower end, the setting of the guide section 502b is convenient for the second clamping member to enter into the clamping space and cooperate with the clamping groove 502a.
  • the inclination angle of the upper end of the clamping plate 502 is set at 30° to 60°. Within this angle range, the guide section 502b can play a better guiding effect.
  • the maximum distance between the two clipping plates 502 is slightly larger than the width of the second clipping piece, and at the slot 502a, the distance between the two clipping plates 502 is smaller than the width of the second clipping piece. In this way, when the second clip is clipped into the clip slot 502a, it can cooperate with the clip slot 502a to realize clip connection, and it is not easy to come out from the clip slot 502a.
  • the second clip is guided by the guide section 502b and slides to a position matched with the clip slot 502a to complete the fixing of the bottom guard plate 2 .
  • the reinforcing rib 21 is recessed downward to form the accommodation groove 201, and the first clamping member 5 is arranged in the accommodation groove 201, specifically, the accommodation groove 201 is connected with the first clamping
  • the parts 5 are arranged in one-to-one correspondence, and the clipping plate 502 can be slightly deformed under the action of an external force. Putting it in the groove 201 will not affect the sealing of the battery case 1 and the bottom guard plate 2 .
  • the second clamping member includes a connecting member 401 extending downward along the bottom surface of the battery case 1 , and the end of the connecting member 401 is parallel to
  • the clamping block 402 extending from the bottom surface of the battery case 1 , the clamping block 402 is arranged corresponding to the clamping plate 502 , and is used for clamping and matching with the clamping portion on the clamping plate 502 .
  • the second clamping member is extruded from an aluminum extruded profile, and then processed to form a structure including two parts of the connecting member 401 and the clamping block 402 .
  • the number of snap-in blocks 402 is equal to the number of snap-in plates 502 and they are arranged in one-to-one correspondence.
  • the snap-in blocks 402 are correspondingly snapped into the snap-in plate 502 Inside the slot 502a.
  • a guide surface 402a is formed on the surface of the locking block 402 opposite to the bottom surface of the battery case 1, and the guide surface 402a is an inclined plane.
  • the guide surface 402a is self-locking
  • the center of the block 402 is arranged along a similar inclination away from the bottom surface of the battery case 1 toward the edge, that is, the distance between the end of the snap-fit block 402 connected to the connector 401 and the battery case 1 is smaller than that of the other end of the snap-fit block 402
  • the distance between one end and the battery case 1 is such that when it is necessary to disengage the first clamping member 5 from the second clamping member, it is more convenient to use the guidance of the guide surface 402a to disengage the two.
  • the inclination angle of the guide surface is set between 30° and 60°. Within this range of angles, under the action of external force, it is relatively easy for the first clamping member to slide from the second clamping member. Get out.
  • the distance between the upper end of the connecting piece 401 and the lower surface of the locking block 402 should be equal to the distance between the upper surface of the bottom plate 501 and the upper surface of the rib 21, so that , when the first clamping member 5 is clamped with the second clamping member, the bottom surface of the battery case 1 and the upper surface of the reinforcing rib 21 are arranged in close contact, which ensures the tightness of the connection between the two.
  • the battery case 1 and the bottom guard plate 2 are snapped and fixed in the middle position through multiple snapping structures.
  • the guard plate 2 does not need to be disassembled frequently during use.
  • the bottom guard plate 2 may need to be replaced when it needs to be disassembled. Therefore, even if the bottom guard plate 2 is damaged during disassembly, there will be no other adverse effects .
  • connection block 402 enters the clamping space through the guide section 502b, and cooperates with the clamping groove 502a to realize the clamping, so that the bottom guard plate 2 and the battery box 1 can be initially fixed, and then around the edge of the battery box 1
  • the assembly of the bottom guard plate 2 and the battery box body 1 can be realized by fixing the bolts.
  • embodiments of the present disclosure also provide a vehicle using the battery pack described in the above embodiments.
  • the battery pack provided by the embodiment of the present disclosure utilizes the space gap at the bottom of the battery box to set up a clamping structure, and realizes the preliminary fixing of the battery box and the bottom guard plate by clamping, reducing the intermediate The number of openings at the fixed point improves the bottom sealing safety system and assembly efficiency.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

公开了电池包和车辆。电池包包括电池箱体和设置在电池箱体下方的底护板，电池箱体与底护板之间通过卡接结构连接。

Description

电池包和车辆
相关申请的交叉引用
本申请要求在2021年8月31日在中国提交的中国专利申请号202122086932.0的优先权，其全部内容通过引用并入本文。
技术领域
本公开涉及汽车技术领域，具体涉及一种电池包和车辆。
背景技术
电动汽车销量逐年增加，外出使用路况和场景复杂多变，电池包的底部安全防护需求也因此面临更严峻的挑战。
目前关于底部安全及底护板设计，比较常见的解决方案为采用冲压底护板和加强横梁焊接，整体固定在箱体上的方式；为提高底护板刚度，传统方案还会在底护板上增加中间固定点。常见的中间固定点方案需要在冲压底护板上打过孔，通过螺钉固定，该方案每一个固定点都是一个密封点，由于中间固定点的存在，会增加密封失效风险，降低了底部密封安全系数。
发明内容
本公开的实施方案提供了一种电池包和车辆。
本公开的实施方案提供了一种电池包，包括电池箱体和设置所述电池箱体下方的底护板，所述电池箱体与所述底护板之间通过卡接结构连接。
在一些实施方案中，所述卡接结构包括相互配合的第一卡接件和第二卡接件，所述第一卡接件与所述第二卡接件中的一者设于所述电池箱体上，另一者对应的设于所述底护板上。
在一些实施方案中，所述底护板上设有多条加强筋，所述第一卡接件设置在所述加强筋上；所述电池箱体的内部设有纵梁，所述第二卡接件设置在所述电池箱体的底部且位于所述纵梁与所述加强筋的交叉处。
在一些实施方案中，所述第一卡接件包括底板，所述底板的边缘向上弯折形成至少两块卡接板，至少两块所述卡接板相对设置，且至少两块所述卡接板之间形成用于容置所述第二卡接件的卡接空间，且所述卡接板上设有用于所述第二卡接件配合的卡接部。
在一些实施方案中，所述卡接部包括卡槽，所述第二卡接件伸入到所述卡接空间内，且所述第二卡接件的边缘可对应的卡入到所述卡槽内。
在一些实施方案中，所述卡接板远离所述底板的一端向外倾斜以形成引导段，所述引导段用于引导所述第二卡接件进入到所述卡接空间内。
在一些实施方案中，所述加强筋向下凹陷形成容置槽，所述第一卡接件设置在所述容 置槽内。
在一些实施方案中，所述第二卡接件包括沿所述电池箱体的底面向下延伸的连接件和在所述连接件的端部向平行于所述电池箱体的底面的方向延伸出的卡接块，所述卡接块与所述卡接板对应设置，用于与所述卡接部卡接配合。
在一些实施方案中，所述卡接块与所述电池箱体的底面相对的一面上形成有导向面，所述导向面自所述卡接块的中心向边缘方向延远离所述电池箱体的底面的方向倾斜设置。
在一些实施方案中，所述电池箱体的边缘与所述底护板之间通过紧固件连接。
本公开的实施方案还提供了一种车辆，包括上述任一项所述的电池包。
本公开的实施方案具有如下优点：本公开实施例提供的电池包，在电池箱体与底护板之间设置卡接机构将电池箱体与底护板连接在一起，在装配时，只需要将电池箱体与底护板通过卡接结构连接在一起即可，在实现电池箱体与底护板连接的基础上，减少了在电池箱体和底护板上开孔数量，提高了电池包的底部密封安全系数及装配效率。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
为了更清楚地说明本公开的实施方案，下面将对实施方案中所需要使用的附图作简单地介绍，显而易见地，对于本领域普通技术人员而言，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本公开一些实施例所述电池包的结构示意图；
图2为本公开一些实施例所述卡接结构的结构示意图；
图3为本公开一些实施例所述底护板的结构示意图；
图4为图3中第一卡接件的局部放大图。
其中，1、电池箱体；2、底护板；3、紧固件；5、第一卡接件；21、加强筋；201、容置槽；401、连接件；402、卡接块；402a、导向面；501、底板；502、卡接板；502a、卡槽；502b、引导段。
具体实施方式
为了能够更清楚地理解本公开的上述目的、特征和优点，下面将对本公开的实施方案进行进一步描述。需要说明的是，在不冲突的情况下，本公开的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本公开，但本公开还可以采用其他不同于在此描述的方式来实施；显然，说明书中的实施例只是本公开的一部分实施例，而不是全部的实施例。
如图1至图4所示，本公开实施例提供了一种电池包，包括电池箱体1和设置在电池箱体1下方的底护板2，电池箱体1与底护板2之间通过卡接结构连接。具体的，在本公 开的一些实施例中，卡接结构设置在电池箱体1的中部，电池箱体1与底护板2的边缘处通过紧固件3固定，中部通过卡接结构固定，这样在装配时，只需要将电池箱体1与底护板2通过卡接结构连接在一起即可，在实现电池箱体1与底护板2连接的基础上，减少了在电池箱体1和底护板2上开孔数量，提高了电池包的底部密封安全***及装配效率。
进一步的，在本公开的一些实施例中，卡接结构包括相互配合的第一卡接件5和第二卡接件，第一卡接件5与第二卡接件中的一者设置在电池箱体1上，另一者对应的设置在底护板2上。在装配时将第一卡接件5与第二卡接件对卡接，即可实现电池箱体1与底护板2的连接，第一卡接件5和第二卡接件在电池箱体1和底护板2上的位置可以互换，只要能够实现二者的卡接固定就可以。
进一步的，结合图3所示，在本公开的一些实施例中，底护板2上设置多条加强筋21，第一卡接件5设置在加强筋21上，电池箱体1的内部设有纵梁，第二卡接件设置在电池箱体1的底部且位于纵梁与加强筋21的交叉处。具体的，加强筋21的数量为多条，每条加强筋21上沿长度方向间隔设置多个第一卡接件5，第二卡接件的数量与第一卡接件5的数量相等，且一一对应设置。
需要说明的是，第二卡接件的位置不限于设于电池箱体的纵梁上，也可以设置在电池箱体1的横梁或者其他位置，主要能保证第一卡接件5和第二卡接件相对设置即可。
加强筋21是底护板2本身就有的结构。相关中，底护板2和电池箱体1进行安装时，无论是边缘还是中间位置都是通过螺栓固定在一起的，在本公开的实施例中，将中间位置的螺栓固定替换为卡接固定，利用本身就有的加强筋21设置第一卡接件5，利用电池箱体1的纵梁设置第二卡接件，实现电池箱体1与底护板2的卡接固定。
进一步的，结合图2和图4所示，在本公开的一些实施例中，第一卡接件5包括底板501，底板501的边缘向上弯折形成至少两块卡接板502，至少两块卡接板502相对设置，且至少两块卡接板502之间形成用于容置第二卡接件的卡接空间，卡接板502上设有用于与第二卡接件配合的卡接部。具体的，在本公开的一些实施例中，底板501的形状为矩形，底板501的4个边缘均可向上弯折形成4块卡接板502，或者至少两个边缘向上弯折形成至少两块卡接板502，当只有两块卡接板502时，两块卡接板502要相对设置，这样可以在卡接板502之间形成卡接空间，在装配时，将第二卡接件对应的推入到卡接空间内，利用第一卡接件5上的卡接部将第二卡接件卡接，实现电池箱体1与底护板2的连接。
进一步的，卡接部可以设置为卡槽502a或卡块等结构，在本公开的一些实施例中，卡接部包括设置在卡接板502上的卡槽502a，第二卡接件伸入到卡接空间内，且第二卡接件的边缘可对应的卡入到卡槽502a内。
具体的，卡槽502a可以设置在卡接板502的底部，也就是卡接板502与底板501连接的弯折处，第二卡接件的底部为平面，当第二卡接件的边缘卡入到卡槽502a内是，第二卡接件的底面与底板501贴合，提高了卡接结构的稳定性，避免电池箱体1与底护板2连接时发生晃动。
进一步的，在本公开的一些实施例中，卡接板502远离底板501的一端向外倾斜以形 成引导段502b，引导段502b用于引导第二卡接件进入到卡接空间内。具体的，如图3所示，在本公开的一些实施例中，两块卡接板502相对设置，卡接板502的上端向相互远离的方向倾斜，以在卡接板502的上端形成上端开口大下端开口小的引导段502b，引导段502b的设置方便第二卡接件进入到卡接空间内与卡槽502a配合。在本公开的一些实施例中，将卡接板502的上端的倾斜角度设置为30°至60°在这个角度范围内，引导段502b能够起到较好的引导效果。在引导段502b处，两块卡接板502之间的最大距离略大于第二卡接件的宽度，在卡槽502a处，两块卡接板502之间的距离小于第二卡接件的宽度，这样，第二卡接件在卡入到卡槽502a内时，才能与卡槽502a配合实现卡接，且不易从卡槽502a内脱出。在装配时，第二卡接件在引导段502b的引导下，滑动到与卡槽502a配合的位置，完成底护板2的固定。
进一步的，在本公开的一些实施例中，加强筋21向下凹陷形成容置槽201，第一卡接件5设置在容置槽201内，具体的，容置槽201与第一卡接件5一一对应设置，卡接板502在外力作用下，可轻微变形，在电池箱体1通过第一卡接件5和第二卡接件配合时，卡接板502可容置在容置槽201内，不会对电池箱体1与底护板2配合的密封性。
进一步的，结合图2所示，在本公开的一些实施例中，第二卡接件包括沿电池箱体1的底面向下延伸形成的连接件401和在连接件401的端部向平行于电池箱体1的底面方向延伸出的卡接块402，卡接块402与卡接板502对应设置，用于与卡接板502上的卡接部卡接配合。具体的，在本公开的一些实施例中，第二卡接件采用铝挤出型材挤出，再经过机加工形成包括连接件401和卡接块402两部分的结构。卡接块402的数量与卡接板502的数量相等且一一对应设置，在第一卡接件5与第二卡接件配合时，卡接块402对应的卡入到卡接板502的卡槽502a内。
进一步的，在本公开的一些实施例中，卡接块402与电池箱体1的底面相对的一面上形成有导向面402a，导向面402a为倾斜的平面，具体的，导向面402a自卡接块402的中心向边缘方向沿远离电池箱体1的底面的相仿倾斜设置，也就是，卡接块402与连接件401连接的一端与电池箱体1之间的距离小于卡接块402的另一端与电池箱体1之间的距离，这样在需要对第一卡接件5与第二卡接件脱离时，利用导向面402a的引导，比较方便二者的脱离。在本公开的一些实施例中，将导向面的倾斜角度设置为30°至60°之间，在这个角度范围内，在外力作用下，第一卡接件比较容易从第二卡接件内脱离出来。
更进一步的，在本公开的一些实施例中，连接件401的上端与卡接块402的下表面之间的距离应该等于底板501的上表面与加强筋21的上表面之间的距离，这样，在第一卡接件5与第二卡接件卡接时，电池箱体1的底面与加强筋21的上表面是贴合设置的，保证了二者连接的密封性。
在本公开的实施例中，通过多个卡接结构实现电池箱体1与底护板2在中间位置的卡接固定，与螺钉固定的连接方式相比，是不好拆卸的，但本身底护板2在使用过程中也不需要经常拆卸，一般需要进行拆卸的时候可能都是需要更换底护板2的，所以，即使是在拆卸时对底护板2造成了损坏也没有其他不利影响。
在装配电池箱体1与底护板2时，将底护板2上第一卡接件5与电池箱体1上的第二卡接件对准，向下按压电池箱体1，使卡接块402通过引导段502b进入到卡接空间内，并与卡槽502a配合实现卡接，即可实现底护板2与电池箱体1的初步固定，然后在电池箱体1的边缘处周圈通过固定螺栓即可实现底护板2与电池箱体1的装配。
进一步的，本公开的实施例还提供了一种车辆，应用上述实施例所述的电池包。
综上所述，本公开实施例提供的一种电池包，利用电池箱体的底部空间间隙，设置卡接结构，通过卡接的方式实现电池箱体与底护板的初步固定，减少了中间固定点的开孔数量，提高了底部密封安全***及装配效率。
需要说明的是，在本文中，诸如“第一”和“第二”等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上所述仅是本公开的具体实施方式，使本领域技术人员能够理解或实现本公开。对这些实施例的多种修改对本领域的技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本公开的范围的情况下，在其它实施例中实现。因此，本公开将不会被限制于本文所述的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。
本公开所有实施例均可以单独被执行，也可以与其他实施例相结合被执行，均视为本公开要求的保护范围。

Claims (11)

  1. 一种电池包，包括电池箱体(1)和设置所述电池箱体(1)下方的底护板(2)，所述电池箱体(1)与所述底护板(2)之间通过卡接结构连接。
  2. 根据权利要求1所述的电池包，其中所述卡接结构包括相互配合的第一卡接件(5)和第二卡接件，所述第一卡接件(5)与所述第二卡接件中的一者设于所述电池箱体(1)上，另一者对应的设于所述底护板(2)上。
  3. 根据权利要求2所述的电池包，其中所述底护板(2)上设有多条加强筋(21)，所述第一卡接件(5)设置在所述加强筋(21)上；所述电池箱体(1)的内部设有纵梁，所述第二卡接件设置在所述电池箱体(1)的底部且位于所述纵梁与所述加强筋(21)的交叉处。
  4. 根据权利要求3所述的电池包，其中所述第一卡接件(5)包括设置在所述加强筋(21)上的底板(501)，所述底板(501)的边缘向上弯折形成至少两块卡接板(502)，至少两块所述卡接板(502)相对设置，且至少两块所述卡接板(502)之间形成用于容置所述第二卡接件的卡接空间，所述卡接板(502)上设有用于与所述第二卡接件配合的卡接部。
  5. 根据权利要求4所述的电池包，其中所述卡接部包括卡槽(502a)，所述第二卡接件伸入到所述卡接空间内，且所述第二卡接件的边缘可对应的卡入到所述卡槽(502a)内。
  6. 根据权利要求4或5所述的电池包，其中所述卡接板(502)远离所述底板(501)的一端向外倾斜以形成引导段(502b)，所述引导段(502b)用于引导所述第二卡接件进入到所述卡接空间内。
  7. 根据权利要求3至6中任一项所述的电池包，其中所述加强筋(21)向下凹陷形成容置槽(201)，所述第一卡接件(5)设置在所述容置槽(201)内。
  8. 根据权利要求4至7中任一项所述的电池包，其中所述第二卡接件包括沿所述电池箱体(1)的底面向下延伸形成的连接件(401)和在所述连接件(401)的端部向平行于所述电池箱体(1)的底面的方向延伸出的卡接块(402)，所述卡接块(402)与所述卡接板(502)对应设置，用于与所述卡接部卡接配合。
  9. 根据权利要求8所述的电池包，其中所述卡接块(402)与所述电池箱体(1)的底面相对的一面上形成有导向面(402a)，所述导向面(402a)沿远离所述电池箱体(1)的底面的方向倾斜设置。
  10. 根据权利要求8所述的电池包，其中所述电池箱体(1)的边缘与所述底护板(2)之间通过紧固件(3)连接。
  11. 一种车辆，包括如权利要求1至10中任一项所述的电池包。
PCT/CN2022/115476 2021-08-31 2022-08-29 电池包和车辆 WO2023030243A1 (zh)

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