WO2023093330A1 - 电池包框架、电池包和车辆 - Google Patents

电池包框架、电池包和车辆 Download PDF

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Publication number
WO2023093330A1
WO2023093330A1 PCT/CN2022/124437 CN2022124437W WO2023093330A1 WO 2023093330 A1 WO2023093330 A1 WO 2023093330A1 CN 2022124437 W CN2022124437 W CN 2022124437W WO 2023093330 A1 WO2023093330 A1 WO 2023093330A1
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WO
WIPO (PCT)
Prior art keywords
battery pack
frame
vehicle
connecting sleeve
hole
Prior art date
Application number
PCT/CN2022/124437
Other languages
English (en)
French (fr)
Inventor
吴本喜
郑林艳
姜利文
吴凯
Original Assignee
宁德时代新能源科技股份有限公司
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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
Publication of WO2023093330A1 publication Critical patent/WO2023093330A1/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
    • H01M50/233—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
    • H01M50/233—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
    • H01M50/242—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 against vibrations, collision impact or swelling
    • 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

Definitions

  • the present application relates to the technical field of batteries, in particular to a battery pack frame, a battery pack and a vehicle.
  • the battery pack is used as the power source of the vehicle, which has an important impact on the performance of the vehicle, such as vehicle passability, safety, reliability and durability, and maintainability.
  • the battery pack is generally installed on the body sill.
  • the battery pack and the body sill are two completely independent systems.
  • the installation method of the battery pack and the body sill will cause the Y-direction gap between the battery pack and the body sill to reach more than 60mm, resulting in the utilization of the battery cell layout space in the lower part of the body. Insufficient rate.
  • the cost of the battery pack frame of the existing battery pack is relatively high, and the first-order torsional stiffness of the vehicle needs to be improved.
  • This application provides a battery pack frame, a battery pack, and a vehicle to solve the problem that the installation method of the existing battery pack and the threshold of the vehicle body causes a large gap in the Y direction between the battery pack and the threshold of the vehicle body, resulting in insufficient utilization of the battery cell arrangement space in the lower part of the vehicle body , The high cost of the battery pack frame, and the first-order torsional stiffness of the vehicle need to be improved.
  • the present application provides a battery pack frame, including a frame body and a connecting sleeve.
  • the frame body is provided with installation holes along the thickness direction.
  • the connecting sleeve is embedded in the installation hole, and a through hole is opened in the connecting sleeve.
  • the bolt By opening a mounting hole in the frame body along the thickness direction, setting a connecting sleeve in the mounting hole, and opening a through hole in the connecting sleeve, when installing the battery pack and the body sill, the bolt passes through the through hole of the connecting sleeve , and then pass through the mounting holes provided on the body sill to connect the battery pack frame with the body sill.
  • the battery pack frame of this embodiment is directly provided with an installation channel on the frame body for the connection between the battery pack frame and the body sill, and there is no need to design a separate connecting plate on the frame body, which saves the manufacturing cost of the battery pack frame and can also reduce the size of the battery pack.
  • the Y-direction gap between the door sill and the body sill expands the battery layout space, and finally achieves the purpose of improving the cruising range of the vehicle.
  • the bolt passes through the through hole of the connecting sleeve along the thickness direction of the frame body to connect with the body sill, which can increase the first-order torsional stiffness of the vehicle, thereby improving the performance of the vehicle.
  • the battery pack frame further includes a fastener, which is detachably connected to the connection sleeve.
  • the connecting sleeve can be stably installed on the mounting hole of the frame body, thereby achieving a stable connection between the battery pack frame and the door sill of the vehicle body.
  • the frame body includes an outer frame and inner beams.
  • the outer frame is surrounded by multiple side beams.
  • the side beam is provided with installation holes along the thickness direction.
  • the inner beams are connected in the outer frame.
  • the edge beam there is a cavity inside the edge beam, and reinforcing ribs are arranged in the cavity.
  • reinforcing ribs are arranged in the cavity.
  • seals are provided on the side beams. By setting the seal on the side beam, it is used to seal the inside of the battery pack and improve the airtightness of the battery pack.
  • the mounting holes are located close to the outside of the side beams. By designing the position of the mounting hole to be close to the outside of the side beam, it is possible to effectively avoid interference between the door sill of the body and other basic components connected to the inside of the side beam of the battery pack frame after being connected to the battery pack frame, which will affect the use.
  • the present application also provides a battery pack, including the above-mentioned battery pack frame.
  • the present application also provides a vehicle, including the above-mentioned battery pack and a body sill, the battery pack frame and the vehicle body sill are connected by a bolt assembly, and the bolt assembly is connected to the vehicle body sill through the through hole.
  • a battery pack frame is directly provided with mounting holes along the thickness direction of the frame body, a connecting sleeve is provided in the mounting hole, and a through hole is opened in the connecting sleeve.
  • the battery pack frame is connected with the door sill of the vehicle body.
  • such a battery pack frame does not need to design a separate connecting plate on the frame body, which saves the production cost of the battery pack frame, and can also reduce the Y-direction gap between the battery pack and the vehicle body threshold, expand the cell layout space, and improve the battery capacity. Packing capacity, thereby increasing the cruising range of the vehicle.
  • the bolt passes through the through hole of the connecting sleeve along the thickness direction of the frame body to connect with the body sill, which can increase the first-order torsional stiffness of the vehicle, thereby improving the performance of the vehicle. .
  • FIG. 1 is a schematic diagram of the three-dimensional structure of the battery pack frame provided by the present application.
  • Fig. 2 is an enlarged view at I place in Fig. 1;
  • Fig. 3 is the sectional view of A-A direction in Fig. 2;
  • Fig. 4 is the sectional view of B-B direction in Fig. 2;
  • Fig. 5 is a schematic diagram of the installation of the seal on the side beam in the embodiment of the present application.
  • the battery pack is an important part of the electric vehicle and the source of power for the vehicle, which has an important impact on the performance of the vehicle, such as vehicle passability, safety, reliability and durability, and maintainability.
  • the battery pack is generally installed on the body sill.
  • the body sill is a very important car protection component, which can effectively resist the external immersion in the side collision of the car, protect the integrity of the passenger compartment, and reduce the injury of the occupants.
  • the battery pack and the door sill of the body are two completely independent systems, and they need to be connected together through mounting parts.
  • a battery pack generally includes a battery pack body and a battery pack frame, and the battery pack body is mounted on the battery pack frame.
  • a connection plate is provided on the side of the battery pack frame, and then mounting holes are provided on the connection plate.
  • connection plate increases the cost of the battery pack frame, and also makes the first-order torsional stiffness of the vehicle not very ideal, which in turn affects the performance of the vehicle.
  • the Y direction refers to the width direction of the battery pack frame.
  • the installation surface of the battery pack and the body sill can be directly designed on the side beam of the battery pack frame instead of a separate design of the connecting plate, so as to achieve the purpose of installing and fixing the battery pack frame and the body sill. It is beneficial to reduce the Y-direction gap between the battery pack and the body sill, expand the battery cell layout space, and improve the first-order torsional stiffness of the vehicle.
  • the battery pack frame includes a frame body and a connecting sleeve.
  • the frame body is provided with mounting holes along the thickness direction, and the connecting sleeve is embedded in the inside the mounting hole. A through hole is opened in the connecting sleeve.
  • Such a battery pack frame is directly provided with mounting holes along the thickness direction of the frame body, and a connecting sleeve is provided in the mounting hole, and a through hole is opened in the connecting sleeve.
  • the through hole of the sleeve passes through the installation hole provided on the door sill of the vehicle body to connect the battery pack frame with the door sill of the vehicle body.
  • such a battery pack frame does not need to design a separate connecting plate on the frame body, which saves the production cost of the battery pack frame, and can also reduce the Y-direction gap between the battery pack and the vehicle body threshold, expand the cell layout space, and improve the battery capacity. Packing capacity, thereby increasing the cruising range of the vehicle.
  • the bolt passes through the through hole of the connecting sleeve along the thickness direction of the frame body to connect with the body sill, which can increase the first-order torsional stiffness of the vehicle, thereby improving the performance of the vehicle.
  • a battery pack frame disclosed in an embodiment of the present application can be used on the battery pack, and can protect the battery pack from collisions.
  • Applying the battery pack including the battery pack frame disclosed in this application to the vehicle can reduce the Y-direction gap between the battery pack and the body sill, expand the battery cell layout space, and improve the first-order torsional stiffness of the vehicle, thereby improving the overall car performance.
  • FIG. 1 is a schematic perspective view of the three-dimensional structure of a battery pack frame in some embodiments of the present application
  • FIG. 2 is an enlarged view of position I in FIG. 1
  • the present application provides a battery pack frame.
  • the battery pack frame includes a frame body 1 and a connecting sleeve 2.
  • the frame body 1 is provided with a mounting hole along the thickness direction, and the connecting sleeve 2 is embedded in the mounting hole.
  • a through hole 20 is opened in the connecting sleeve 2 .
  • the frame body 1 plays a role of collision protection for the battery pack, and materials with strong extrusion resistance, strong shock resistance, and strong impact resistance are selected for the preparation of materials.
  • the frame body 1 can be made of aluminum alloy profiles.
  • the connecting sleeve 2 plays the role of connecting the battery pack frame and the vehicle body threshold.
  • the connecting sleeve 2 can be fixedly embedded in the mounting hole, or can be detachably embedded in the mounting hole. In some specific embodiments, for The maintenance is convenient, and the connecting sleeve 2 is detachably embedded in the mounting hole.
  • the height of the connecting sleeve 2 is greater than or equal to 100 mm, specifically 100 mm, 110 mm, 120 mm, 130 mm, 140 mm or 150 mm, etc., and of course other values within the above range, which are not limited here.
  • the through hole 20 is to provide an installation channel for the mounting parts connecting the frame body 1 and the door sill of the vehicle body.
  • the through hole 20 in the present application refers to a hole opened at both ends along the length direction of the connecting sleeve 2.
  • the through hole 20 The direction is consistent with the direction of the mounting holes.
  • the battery pack frame of this embodiment is directly provided with an installation channel on the frame body 1 for the connection between the battery pack frame and the vehicle body sill, and there is no need to separately design a connecting plate on the frame body 1, which saves the manufacturing cost of the battery pack frame and can also reduce the size of the battery pack frame.
  • the Y-direction gap (as shown in Figure 1) between the battery pack and the body sill expands the cell layout space, and ultimately achieves the purpose of increasing the cruising range of the vehicle.
  • the bolt passes through the through hole 20 of the connecting sleeve 2 along the thickness direction of the frame body 1 to connect with the vehicle body sill, which can increase the first-order torsional stiffness of the vehicle, thereby improving the performance of the vehicle.
  • the battery pack frame further includes a fastener 3 which is detachably connected to the connection sleeve 2 .
  • the fastener 3 refers to the part that stably installs the connecting sleeve 2 on the mounting hole of the frame body 1.
  • the fastener 3 can be a fastening nut.
  • the connecting sleeve 2 A threaded portion matched with the fastening nut is arranged on the top.
  • the two ends of the connection sleeve 2 are respectively detachably mounted with fasteners 3 .
  • the connecting sleeve 2 can be stably installed on the mounting hole of the frame body 1 through the action of the fastener 3 , thereby achieving a stable connection between the battery pack frame and the door sill of the vehicle body.
  • the frame body 1 includes an outer frame 11 and an inner beam 12 , and the outer frame 11 is surrounded by a plurality of side beams 111 .
  • the side beam 111 is provided with installation holes along the thickness direction.
  • the inner beam 12 is connected inside the outer frame 11 .
  • the side beam 111 refers to the beam on the outer periphery of the frame body 1 , and the side beam 111 may be a solid body or a hollow body with a cavity inside.
  • the number of side beams 111 can be three, four, five, six, eight, etc., but not limited to these numbers.
  • the width of the side beam 111 is not specifically limited, and can be specifically designed according to actual application requirements. In some specific embodiments, in order to facilitate the design of the installation hole, the width of the side beam 111 can be 50mm-60mm.
  • the side beams 111 are provided with installation holes along the thickness direction, the number of installation holes can be multiple, and the installation holes can be arranged on each side beam 111, or on several of the side beams 111, and the side with the installation holes One or more mounting holes may be provided on the beam 111 .
  • installation holes are provided on several side beams 111, and the side beams 111 provided with installation holes are arranged opposite to each other, so as to ensure the symmetry of installation.
  • the side beam 111 provided with installation holes is provided with seven installation holes.
  • the function of the inner beam 12 is to increase the strength of the outer frame 11 and effectively prevent the deformation of the frame body 1 when it is hit.
  • the number of inner beams 12 can be one or more.
  • the frame body 1 By providing mounting holes on the side beams 111 of the outer frame 11 of the frame body 1 , the frame body 1 can be connected to the door sill on the outer periphery, and the installation stability of the frame body 1 and the door sill can be improved.
  • the strength of the entire frame body 1 can be improved by arranging the inner beam 12 inside the outer frame 11 of the frame body 1 .
  • the side beam 111 has a cavity 1110 inside. Reinforcing ribs 1111 are disposed in the cavity 1110 .
  • the cavity 1110 inside the side beam 111 means that the inside of the side beam 111 is hollow, which can reduce the overall weight of the side beam 111 to realize the weight reduction of the battery pack frame, thereby reducing the weight of the vehicle.
  • the cross section of the cavity 1110 may be circular, square or the like.
  • the ribs 1111 are used to enhance the strength of the side beam 111 and effectively prevent the side beam 111 from being deformed when it is collided.
  • the reinforcing rib 1111 is integrally formed with the side beam 111 .
  • the reinforcing rib 1111 may be a cross-shaped reinforcing rib.
  • the overall weight of the side beam 111 can be reduced so as to reduce the weight of the battery pack frame, thereby reducing the weight of the vehicle.
  • the ribs 1111 inside the side beam 111 it is beneficial to increase the strength of the side beam 111, and can effectively prevent the side beam 111 from being deformed when it is hit.
  • a seal 1112 is provided on the side beam 111 .
  • the sealing member 1112 is used for sealing inside the battery pack to improve the sealing performance of the battery pack.
  • Sealers 1112 may be provided on upper and lower surfaces of the side beam 111 .
  • the seal 1112 is disposed near the inner side of the side beam 111 .
  • the cross-section of the seal 1112 may be square, circular, or the like.
  • the sealing member 1112 is provided on the side beam 111 to seal the inside of the battery pack and improve the sealing performance of the battery pack.
  • the installation hole is close to the outside of the side beam 111 .
  • the outer side of the side beam 111 refers to the side of the side beam 111 away from the inner beam 12 .
  • the position of the mounting hole By designing the position of the mounting hole to be close to the outside of the side beam 111 , it is possible to effectively avoid interference between the door sill of the vehicle body and other basic components connected to the inside of the side beam 111 of the battery pack frame after being connected to the battery pack frame, affecting use.
  • the present application also provides a vehicle, the vehicle includes a battery pack containing the battery pack frame disclosed in the present application and a body sill, the battery pack frame and the body sill are connected by a bolt assembly, and the bolt assembly passes through The through hole is connected with the body sill.
  • the Y-direction gap between the battery pack and the body sill in this vehicle is small, so that it has a larger battery cell layout space, which can increase the capacity of the battery pack, thereby increasing the cruising range of the vehicle.
  • the battery pack frame in the vehicle is connected to the body sill through the through hole of the connecting sleeve through the bolt along the thickness direction of the frame body, which can improve the first-order torsional stiffness of the vehicle, thereby improving the performance of the vehicle.
  • the present application discloses a battery pack frame, which includes a frame body 1, a connecting sleeve 2 and a fastener 3, the fastener 3 is detachably connected to one end of the connecting sleeve 2, and the end of the connecting sleeve 2 facing away from the fastener 3 is provided with a limiting platform 21.
  • the frame body 1 includes an outer frame 11 and an inner beam 12.
  • the outer frame 11 is formed by four side beams 111, and the two opposite side beams 111 are respectively provided with installation holes along the thickness direction, and the installation holes are close to the side beams.
  • 111 is arranged on the outside, and each side beam 111 is provided with seven installation holes.
  • the inner beam 12 is connected in the outer frame 11, and the inner beam 12 includes two transverse inner beams and one longitudinal inner beam, the two transverse inner beams are parallel to each other, and the longitudinal inner beam and the transverse inner beam perpendicularly intersect.
  • the side beam 111 has a cavity 1110 inside, the cross section of the cavity 1110 is square, and a cross-shaped reinforcing rib 1111 is arranged in the cavity 1110 .
  • a seal 1112 is provided on both the upper surface and the lower surface of the side beam 111 .
  • the battery pack and the vehicle body sill are connected.
  • the mounting holes provided on the battery pack are locked with nuts to connect the battery pack frame with the body sill.
  • Such a battery pack frame does not need to design a separate connecting plate on the frame body 1, which saves the production cost of the battery pack frame, and can also reduce the Y-direction gap between the battery pack and the vehicle body threshold, expand the cell layout space, and increase the battery pack capacity. , thereby increasing the cruising range of the vehicle.
  • the bolts pass through the through hole 20 of the connecting sleeve 2 along the thickness direction of the frame body 1 to connect with the body sill, which can increase the first-order torsional rigidity of the vehicle, thereby improving the performance of the vehicle .
  • the overall weight of the side beam 111 can be reduced so as to reduce the weight of the battery pack frame, thereby reducing the weight of the vehicle.
  • the ribs 1111 inside the side beam 111 it is beneficial to increase the strength of the side beam 111, and can effectively prevent the side beam 111 from being deformed when it is hit.

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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)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Body Structure For Vehicles (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

一种电池包框架、电池包和车辆，电池包框架包括框架本体（1），框架本体（1）沿着厚度方向开设有安装孔；连接套筒（2），嵌设于安装孔内；连接套筒（2）内开设有通孔（20），电池包框架不用在框架本体（1）上单独设计连接板，节省了电池包框架的制作成本，还能缩小电池包与车身门槛之间的Y向间隙，扩大电芯布置空间，提升电池包容量，进而提升整车的续航里程，另一方面，螺栓沿着框架本体（1）的厚度方向穿过连接套筒（2）的通孔（20）与车身门槛连接，能提升整车一阶扭转刚度，进而提升整车的使用性能。

Description

电池包框架、电池包和车辆
本申请要求享有于2021年11月25日提交的名称为“电池包框架、电池包和车辆”的中国专利申请202122923648.4的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及电池技术领域，尤其涉及一种电池包框架、电池包和车辆。
 背景技术
目前，电动车辆中，电池包作为整车动力来源，对整车性能例如整车通过性、安全性、可靠耐久性、可维修性等有着重要的影响。在车辆的设计上，电池包一般是安装于车身门槛上。电池包与车身门槛是两个完全独立的系统，相关技术中，电池包与车身门槛的安装方式会使电池包与车身门槛之间的Y向间隙达到60mm以上，导致车身下部电芯布置空间利用率不足。另外，现有的电池包的电池包框架成本较高，而且整车一阶扭转刚度有待提升。
 技术问题
本申请提供了一种电池包框架、电池包和车辆，以解决现有电池包与车身门槛的安装方式使电池包与车身门槛之间的Y向间隙大导致车身下部电芯布置空间利用率不足、电池包框架成本高、整车一阶扭转刚度有待提升等问题。
 技术解决方案
本申请提供一种电池包框架，包括框架本体和连接套筒。框架本体沿着厚度方向开设有安装孔。连接套筒嵌设于安装孔内，连接套筒内开设有通孔。
通过在框架本体沿着厚度方向开设安装孔，在安装孔内设置连接套筒，再在连接套筒内开设通孔，对电池包与车身门槛进行安装时，螺栓穿过连接套筒的通孔，再穿过车身门槛上设置的安装孔，将电池包框架与车身门槛连接在一起。本实施例的电池包框架直接在框架本体上设置安装通道用于电池包框架与车身门槛的连接，不用在框架本体上单独设计连接板，节省了电池包框架的制作成本，还能缩小电池包与车身门槛之间的Y向间隙，扩大电芯布置空间，最终达到提升车辆续航里程的目的。另一方面，螺栓沿着框架本体的厚度方向穿过连接套筒的通孔与车身门槛连接，能提升整车一阶扭转刚度，进而提升整车的使用性能。
在一种可能的设计中，电池包框架还包括紧固件，紧固件可拆卸地连接于连接套筒。通过紧固件的作用能将连接套筒稳定安装在框架本体的安装孔上，进而实现电池包框架与车身门槛的稳定连接。
在一种可能的设计中，框架本体包括外框架和内梁。外框架是由多个边梁围设而成。边梁沿着厚度方向开设有安装孔。内梁连接于外框架内。通过在框架本体的外框架的边梁上设置有安装孔，能够使得框架本体在外周围上实现与车身门槛的连接，提升框架本体与车身门槛的安装稳定性。通过在框架本体的外框架内设置内梁，能提升整个框架本体的强度。
在一种可能的设计中，边梁内部具有空腔，空腔内设置有加强筋。通过将边梁内部设置成中空状，这样能减轻边梁的整体重量，以实现电池包框架的轻量化，进而减轻车辆的重量。通过在边梁内部设置加强筋，有利于提升边梁的强度，能有效防止边梁受碰撞时发生变形。
在一种可能的设计中，边梁上设置有密封件。通过在边梁上设置密封件，用于电池包内部的密封，提升电池包的密封性。
在一种可能的设计中，安装孔靠近边梁外侧。通过将安装孔的位置设计成靠近边梁外侧，能够有效避免车身门槛在与电池包框架连接后与其他连接于电池包框架边梁内侧的基础部件发生干涉，影响使用。
本申请还提供一种电池包，包括上述的电池包框架。
本申请还提供一种车辆，包括上述的电池包和车身门槛，所述电池包框架和所述车身门槛通过螺栓组件连接，所述螺栓组件穿过所述通孔与所述车身门槛连接。
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。
 有益效果
本申请一种电池包框架直接在框架本体沿着厚度方向开设安装孔，在安装孔内设置连接套筒，再在连接套筒内开设通孔，对电池包与车身门槛进行安装时，螺栓穿过连接套筒的通孔，再穿过车身门槛上设置的安装孔，将电池包框架与车身门槛连接在一起。一方面，这样的电池包框架不用在框架本体上单独设计连接板，节省了电池包框架的制作成本，还能缩小电池包与车身门槛之间的Y向间隙，扩大电芯布置空间，提升电池包容量，进而提升整车的续航里程。另一方面，螺栓沿着框架本体的厚度方向穿过连接套筒的通孔与车身门槛连接，能提升整车一阶扭转刚度，进而提升整车的使用性能。。
 附图说明
图1为本申请所提供的电池包框架的立体结构示意图；
图2为图1中I处放大图；
图3为图2中A-A方向剖视图；
图4为图2中B-B方向剖视图；
图5为本申请实施例中密封件在边梁上安装示意图。
附图标记：
1-框架本体；
  11-外框架；
     111-边梁；
     1110-空腔；
     1111-加强筋；
     1112-密封件；
  12-内梁；
2-连接套筒；
  20-通孔；
21-限位平台；
3-紧固件。
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。
 本发明的实施方式
为了更好的理解本申请的技术方案，下面结合附图对本申请实施例进行详细描述。
应当明确，所描述的实施例仅仅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作出创造性劳动前提下所获得的所有其它实施例，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”。
近年来，电动汽车飞速发展，在整个汽车市场占有率逐年增加。电池包是电动汽车的一个重要的组成部分，是整车动力来源，对整车性能例如整车通过性、安全性、可靠耐久性、可维修性等有着重要的影响。
在车辆的设计上，电池包一般是安装于车身门槛上。车身门槛是非常重要的汽车防护部件，能够在汽车侧面碰撞中有效地抵挡外部浸入，保护乘员舱的完整性，减轻车内成员伤害。电池包与车身门槛是两个完全独立的系统，它们之间需要通过安装件连接在一起。电池包一般包括电池包本体和电池包框架，电池包本体安装在电池包框架上。相关技术中，为了实现电池包与车身门槛的连接，会在电池包框架的侧方设置连接板，再在连接板上设置安装孔，安装时，使用螺栓穿过安装孔与车身门槛固定连接，这样的安装方式会使电池包与车身门槛之间的Y向间隙达到60mm以上，导致车身下部电芯布置空间利用率不足。另外，连接板的设置增加了电池包框架成本，也使得整车一阶扭转刚度不是很理想，进而影响整车的使用性能。需要说明的是，Y向是指电池包框架的宽度方向。
针对现有电池包与车身门槛的安装方式使电池包与车身门槛之间的Y向间隙大导致车身下部电芯布置空间利用率不足、电池包框架成本高、整车一阶扭转刚度有待提升等问题，申请人研究发现，可以将电池包与车身门槛的安装面直接设计在电池包框架的边梁上，而不用单独设计连接板，达到使电池包框架与车身门槛进行安装固定的目的，有利于缩小电池包与车身门槛之间的Y向间隙，扩大电芯布置空间，并且能提升整车一阶扭转刚度。
基于以上考虑，为了解决现有电池包与车身门槛的安装方式使电池包与车身门槛之间的Y向间隙大导致车身下部电芯布置空间利用率不足、电池包框架成本高、整车一阶扭转刚度有待提升等问题，申请人经过深入研究，设计了一种电池包框架，该电池包框架包括框架本体和连接套筒，框架本体沿着厚度方向开设有安装孔，连接套筒嵌设于安装孔内。连接套筒内开设有通孔。
这样的电池包框架直接在框架本体沿着厚度方向开设安装孔，在安装孔内设置连接套筒，再在连接套筒内开设通孔，对电池包与车身门槛进行安装时，螺栓穿过连接套筒的通孔，再穿过车身门槛上设置的安装孔，将电池包框架与车身门槛连接在一起。一方面，这样的电池包框架不用在框架本体上单独设计连接板，节省了电池包框架的制作成本，还能缩小电池包与车身门槛之间的Y向间隙，扩大电芯布置空间，提升电池包容量，进而提升整车的续航里程。另一方面，螺栓沿着框架本体的厚度方向穿过连接套筒的通孔与车身门槛连接，能提升整车一阶扭转刚度，进而提升整车的使用性能。
本申请实施例公开的一种电池包框架可以用于电池包上，能对电池包起到碰撞保护作用。
将包括本申请公开的电池包框架的电池包应用到车辆上，能缩小电池包与车身门槛之间的Y向间隙，扩大电芯布置空间，还能提升整车一阶扭转刚度，进而提升整车的使用性能。
根据本申请的一些具体实施例，如图1和图2所示，图1为本申请一些实施例的电池包框架的立体结构示意图，图2为图1中I处放大图。本申请提供一种电池包框架，电池包框架包括框架本体1和连接套筒2，框架本体1沿着厚度方向开设有安装孔，连接套筒2嵌设于安装孔内。连接套筒2内开设有通孔20。
框架本体1，对电池包起到碰撞保护作用，在制备材料方面选用抗挤压能力强、抗震能力强、抗撞能力强的材质。在一些具体实施例中，框架本体1可以采用铝合金型材制备而成。
连接套筒2，起到连接电池包框架和车身门槛的作用，连接套筒2可以固定嵌设于安装孔内，也可以可拆卸地嵌设于安装孔内，在一些具体实施例中，为了维修方便，连接套筒2可拆卸地嵌设于安装孔内。在一些具体实施例中，连接套筒2的高度大于等于100mm，具体可以为100mm、110mm、120mm、130mm、140mm或150mm等，当然也可以是上述范围内的其他值，在此不做限定。通过对连接套筒2的高度范围的选择，能够有效提升整车一阶扭转刚度，同时保证电池包框架与车身门槛之间的安装密封性。
通孔20，是为连接框架本体1与车身门槛的安装件提供安装通道，本申请的通孔20是指沿着连接套筒2的长度方向开设的两端均开口的孔，通孔20的方向与安装孔的方向保持一致。
通过在框架本体1沿着厚度方向开设安装孔，在安装孔内设置连接套筒2，再在连接套筒2内开设通孔20，对电池包与车身门槛进行安装时，螺栓穿过连接套筒2的通孔20，再穿过车身门槛上设置的安装孔，将电池包框架与车身门槛连接在一起。本实施例的电池包框架直接在框架本体1上设置安装通道用于电池包框架与车身门槛的连接，不用在框架本体1上单独设计连接板，节省了电池包框架的制作成本，还能缩小电池包与车身门槛之间的Y向（如图1所示）间隙，扩大电芯布置空间，最终达到提升车辆续航里程的目的。另一方面，螺栓沿着框架本体1的厚度方向穿过连接套筒2的通孔20与车身门槛连接，能提升整车一阶扭转刚度，进而提升整车的使用性能。
根据本申请的一些具体实施例，如图2所示，电池包框架还包括紧固件3，紧固件3可拆卸地连接于连接套筒2。
紧固件3，是指将连接套筒2稳定安装在框架本体1的安装孔上的零件，在一些具体实施例中，紧固件3可以为紧固螺母，对应地，在连接套筒2上设置与紧固螺母相配合的螺纹部。紧固件3可以为一个或者两个。在一些具体实施例中，如图4所示，当紧固件3为一个时，其连接于连接套筒2的一端，同时，在连接套筒2背离紧固件3的一端设置限位平台21。在另一些具体实施例中，当紧固件3为两个时，连接套筒2的两端分别可拆卸地安装紧固件3。
通过紧固件3的作用能将连接套筒2稳定安装在框架本体1的安装孔上，进而实现电池包框架与车身门槛的稳定连接。
根据本申请的一些具体实施例，如图1所示，框架本体1包括外框架11和内梁12，外框架11是由多个边梁111围设而成。边梁111沿着厚度方向开设有安装孔。内梁12连接于外框架11内。
边梁111是指框架本体1外周边的梁，边梁111可以为实心体或者内部具有空腔的空心体。边梁111的数量可以为三个、四个、五个、六个、八个等等，但也不仅限于这些数量。边梁111宽度不做具体限定，可以根据实际的应用需求进行具体设计，在一些具体实施例中，为了方便安装孔的设计，边梁111的宽度可以为50mm-60mm。边梁111沿着厚度方向开设有安装孔，安装孔的数量可以为多个，安装孔可以设置在每个边梁111上，也可以设置其中几个边梁111上，设置有安装孔的边梁111上可以设置一个或多个安装孔。在一些具体实施例中，安装孔设置其中几个边梁111上，且设置有安装孔的边梁111相对设置，以保证安装的对称性。在一些具体实施例中，设置有安装孔的边梁111上设置有七个安装孔。
内梁12的作用为了提升外框架11的强度，能有效防止框架本体1在受到碰撞时发生变形。内梁12的个数可以为一个或多个。
通过在框架本体1的外框架11的边梁111上设置有安装孔，能够使得框架本体1在外周围上实现与车身门槛的连接，提升框架本体1与车身门槛的安装稳定性。通过在框架本体1的外框架11内设置内梁12，能提升整个框架本体1的强度。
根据本申请的一些具体实施例，如图3、图4和图5所示，边梁111内部具有空腔1110。空腔1110内设置有加强筋1111。
边梁111内部具有空腔1110是指边梁111的内部呈中空状，这样能减轻边梁111的整体重量，以实现电池包框架的轻量化，进而减轻车辆的重量。空腔1110的截面可以为圆形、方形等。
加强筋1111，用于提升边梁111的强度，有效防止边梁111受碰撞时发生变形。在一些具体实施例中，加强筋1111与边梁111一体成型。在一些具体实施例中，加强筋1111可以为十字形加强筋。
通过将边梁111内部设置成中空状，这样能减轻边梁111的整体重量，以实现电池包框架的轻量化，进而减轻车辆的重量。通过在边梁111内部设置加强筋1111，有利于提升边梁111的强度，能有效防止边梁111受碰撞时发生变形。
根据本申请的一些具体实施例，如图5所示，边梁111上设置有密封件1112。
密封件1112用于电池包内部的密封，提升电池包的密封性。密封件1112可以设置在边梁111的上表面和下表面。在一些具体实施例中，密封件1112设置于边梁111靠近内侧位置。密封件1112的横截面可以为方形、圆形等。
通过在边梁111上设置密封件1112，用于电池包内部的密封，提升电池包的密封性。
根据本申请的一些具体实施例，如图5所示，安装孔靠近边梁111外侧。
边梁111外侧是指边梁111背离内梁12的一侧。
通过将安装孔的位置设计成靠近边梁111外侧，能够有效避免车身门槛在与电池包框架连接后与其他连接于电池包框架边梁111内侧的基础部件发生干涉，影响使用。
根据本申请的一些具体实施例，本申请还提供一种车辆，该车辆包括含有本申请公开的电池包框架的电池包和车身门槛，电池包框架和车身门槛通过螺栓组件连接，螺栓组件穿过通孔与车身门槛连接。该车辆中的电池包与车身门槛之间的Y向间隙小，使得其具有较大的电芯布置空间，能提升电池包容量，进而提升整车的续航里程。同时，该车辆中的电池包框架通过螺栓沿着框架本体的厚度方向穿过连接套筒的通孔与车身门槛连接，能提升整车一阶扭转刚度，进而提升整车的使用性能。
根据本申请的一些具体实施例，如图1-图5所示，本申请公开一种电池包框架，该电池包框架包括框架本体1、连接套筒2和一个紧固件3，紧固件3可拆卸地连接于连接套筒2的一端，连接套筒2背离紧固件3的一端设置有限位平台21。框架本体1包括外框架11和内梁12外框架11是由四个边梁111设而成，其中两个相对设置的边梁111上分别沿着厚度方向开设有安装孔，安装孔靠近边梁111外侧设置，每个边梁111上开设有七个安装孔。内梁12连接于外框架11内，内梁12包括两个横向内梁和一个纵向内梁，两个横向内梁相互平行，纵向内梁与横向内梁垂直交叉。边梁111内部具有空腔1110，空腔1110的截面呈方形，空腔1110内设置有十字形加强筋1111。边梁111的上表面和下表面上均设置有密封件1112。
通过在电池包框架的边梁111沿着厚度方向开设多个安装孔，在每个安装孔内设置连接套筒2，再在连接套筒2内开设通孔20，对电池包与车身门槛进行安装时，先将紧固件3旋紧在连接套筒2上，以使连接套筒2稳定地嵌设在安装孔内，再将螺栓依次穿过连接套筒2的通孔20、车身门槛上设置的安装孔，用螺母锁紧，将电池包框架与车身门槛连接在一起。这样的电池包框架不用在框架本体1上单独设计连接板，节省了电池包框架的制作成本，还能缩小电池包与车身门槛之间的Y向间隙，扩大电芯布置空间，提升电池包容量，进而提升整车的续航里程。电池包框架与车身门槛进行安装时，螺栓沿着框架本体1的厚度方向穿过连接套筒2的通孔20与车身门槛连接，能提升整车一阶扭转刚度，进而提升整车的使用性能。通过将边梁111内部设置成中空状，这样能减轻边梁111的整体重量，以实现电池包框架的轻量化，进而减轻车辆的重量。通过在边梁111内部设置加强筋1111，有利于提升边梁111的强度，能有效防止边梁111受碰撞时发生变形。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围，其均应涵盖在本申请的权利要求和说明书的范围当中。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (12)

  1. 一种电池包框架，其中，包括：
    框架本体（1），所述框架本体（1）沿着厚度方向开设有安装孔；
    连接套筒（2），嵌设于所述安装孔内；所述连接套筒（2）内开设有通孔（20）。
  2. 如权利要求1所述的电池包框架，其中，所述连接套筒可拆卸地嵌设于所述安装孔内。
  3. 如权利要求1所述的电池包框架，其中，所述连接套筒的高度大于等于100mm。
  4. 如权利要求1所述的电池包框架，其中，还包括：
    紧固件（3），可拆卸地连接于所述连接套筒（2）。
  5. 如权利要求1所述的电池包框架，其中，所述框架本体（1）包括：
    外框架（11），所述外框架（11）是由多个边梁（111）围设而成；所述边梁（111）沿着厚度方向开设有所述安装孔；
    内梁（12），连接于所述外框架（11）内。
  6. 如权利要求5所述的电池包框架，其中，所述边梁（111）内部具有空腔（1110）；所述空腔（1110）内设置有加强筋（1111）。
  7. 如权利要求5所述的电池包框架，其中，所述边梁（111）上设置有密封件（1112）。
  8. 如权利要求7所述的电池包框架，其中，所述密封件设置在所述边梁的上表面和下表面。
  9. 如权利要求7所述的电池包框架，其中，所述密封件设置于所述边梁靠近内侧位置。
  10. 如权利要求5所述的电池包框架，其中，所述安装孔靠近所述边梁（111）外侧。
  11. 一种电池包，其中，包括权利要求1-10任一项所述的电池包框架。
  12. 一种车辆，其中，包括权利要求11所述的电池包和车身门槛，所述电池包框架和所述车身门槛通过螺栓组件连接，所述螺栓组件穿过所述通孔与所述车身门槛连接。
PCT/CN2022/124437 2021-11-25 2022-10-10 电池包框架、电池包和车辆 WO2023093330A1 (zh)

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CN216720142U (zh) * 2021-11-25 2022-06-10 宁德时代新能源科技股份有限公司 电池包框架、电池包和车辆

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JP2013133044A (ja) * 2011-12-27 2013-07-08 Kobe Steel Ltd 車載用バッテリートレイおよび車載用バッテリーフレーム
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