WO2021047329A1 - 输出极底座、电池模组及电动汽车 - Google Patents

输出极底座、电池模组及电动汽车 Download PDF

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Publication number
WO2021047329A1
WO2021047329A1 PCT/CN2020/106466 CN2020106466W WO2021047329A1 WO 2021047329 A1 WO2021047329 A1 WO 2021047329A1 CN 2020106466 W CN2020106466 W CN 2020106466W WO 2021047329 A1 WO2021047329 A1 WO 2021047329A1
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WO
WIPO (PCT)
Prior art keywords
protrusion
output pole
limiting member
base body
limiting
Prior art date
Application number
PCT/CN2020/106466
Other languages
English (en)
French (fr)
Inventor
刘俊
林成金
李志凌
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 EP20863206.7A priority Critical patent/EP3930089B1/en
Publication of WO2021047329A1 publication Critical patent/WO2021047329A1/zh
Priority to US17/562,877 priority patent/US20220123441A1/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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/517—Methods for interconnecting adjacent batteries or cells by fixing means, e.g. screws, rivets or bolts
    • 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
    • H01M50/249—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
    • H01M50/296—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
    • 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

  • the embodiments of the present application relate to the field of battery technology, and in particular, to an output pole base, a battery module, and an electric vehicle.
  • the battery system is one of the key systems of electric vehicles, and its safety performance directly affects the safety of the entire vehicle.
  • the output pole base is installed on the output terminal end plate of the battery module for connecting the output pole connecting piece and providing insulation protection for the output pole connecting piece.
  • the base body of the output pole base and the output pole connecting piece are connected by a nut, and the nut is arranged in the base body, and the output pole connecting piece is provided with a bolt hole.
  • the bolt passes through the bolt hole and connects with the base body. The nuts and bolts are connected.
  • the nut includes a threaded inner hole and a cylindrical outer periphery.
  • the battery module will vibrate with the vehicle.
  • the connection between the nut and the output pole base may become loose, even in the circumferential direction. Rotation makes the connection between the nut and the output pole base unreliable and affects the performance of the battery module.
  • Various aspects of the present application provide an output pole base, a battery module, and an electric vehicle to alleviate the technical problem of unreliable connection between the nut and the output pole base in the prior art.
  • the first aspect of the present application provides an output pole base, including:
  • a base body, the base body is provided with a cavity
  • a connecting component, at least part of the connecting component is located in the cavity and fixed with the base body;
  • a plurality of first limiting members are provided around the outer peripheral wall of the connecting member, and the plurality of first limiting members are used to restrict the movement of the connecting member.
  • the first limiting member includes a protrusion or a first groove
  • the inner peripheral wall of the cavity is provided with recesses or protrusions
  • the protrusion is matched with the concave portion, or the first groove is matched with the convex portion.
  • the first limiting member extends along the height direction H;
  • the first limiting member is inclined with respect to the height direction H.
  • the connecting component further includes a flange, and the flange is located outside the cavity;
  • the flange includes an upper surface, and the upper surface is provided with a second limiting member.
  • the outer peripheral wall of the connecting member is provided with a third limiting member, and the third limiting member is ring-shaped;
  • the third limiting member is located in the middle of the connecting member
  • the inner wall of the cavity forms a limiting portion, and the limiting portion cooperates with the third limiting member.
  • the first limiting member includes a protrusion
  • the protrusion includes a first protrusion and a second protrusion
  • the first protrusion and the second protrusion are respectively located at two ends of the third limiting member.
  • the inclination direction of the first protrusion is different from the inclination direction of the second protrusion.
  • the inclination angle ⁇ of the first protrusion satisfies: 30° ⁇ 45°;
  • the inclination angle ⁇ of the second protrusion satisfies: 30° ⁇ 45°.
  • the first limiting member includes a first groove
  • the third limiting member includes a second groove
  • the depth of the first groove is greater than that of the second groove. The depth is different.
  • the second aspect of the present application provides a battery module, including:
  • the output pole connecting piece is fixed on the output pole base.
  • the third aspect of the present application provides an electric vehicle, including the battery.
  • the output pole base includes a base body and a connecting part.
  • the base body is provided with a cavity. At least part of the connecting part is located in the cavity and is fixed to the base body.
  • the outer peripheral wall of the connecting member is provided with a plurality of first limiting members, and the plurality of first limiting members are used for restricting the movement of the connecting member.
  • the first limiting member can fix the connecting part in the base body, which can improve the transmission torque between the connecting part and the cavity.
  • a plurality of first stoppers are arranged around the outer peripheral wall of the connecting part, which can further improve the torque transmission between the connecting part and the cavity, and improve the reliability of the connection between the connecting part and the base body.
  • FIG. 1 is a schematic structural diagram of a battery module provided by an embodiment of the application
  • FIG. 2 is a schematic diagram of the structure of the output pole base provided by an embodiment of the application.
  • Figure 3 is an exploded view of the output pole base provided by an embodiment of the application.
  • Figure 4 is a front view of the output pole base provided by an embodiment of the application.
  • Figure 5 is a cross-sectional view taken along the line A-A of Figure 4.
  • Fig. 6 is a side view of the output pole base provided by an embodiment of the application.
  • Figure 7 is a cross-sectional view taken along the line B-B of Figure 6;
  • Figure 8 is a cross-sectional view of the connecting part
  • Figure 9 is a cross-sectional view of the base body
  • FIG. 10 is a schematic diagram of the first structure of the connecting component in the output pole base body provided by the embodiment of the application;
  • Figure 11 is a front view of Figure 10
  • FIG. 12 is a schematic diagram of the second structure of the connecting component in the output pole base body provided by the embodiment of the application.
  • FIG. 13 is a schematic diagram of a third structure of the connecting component in the output pole base body provided by the embodiment of the application.
  • FIG. 1 is a schematic structural diagram of a battery module provided by an embodiment of the application
  • Fig. 2 is a schematic structural diagram of an output electrode base provided by an embodiment of this application
  • Fig. 3 is an exploded view of an output electrode base provided by an embodiment of this application
  • It is a front view of the output pole base provided by an embodiment of this application
  • FIG. 5 is a cross-sectional view taken along the line AA in FIG. 4
  • FIG. 6 is a side view of the output pole base provided by an embodiment of this application
  • FIG. 7 is a cross-sectional view taken along the line BB of FIG. 6
  • 8 is a cross-sectional view of the connecting member 1
  • FIG. 9 is a cross-sectional view of the base body 2;
  • FIG. 10 is a first structural diagram of the connecting member 1 in the output pole base body 2 provided by an embodiment of the application
  • FIG. 11 is the main part of FIG. View
  • Figure 12 is a schematic diagram of the second structure of the connecting member 1 in the output pole base body 2 provided by an embodiment of the application
  • Figure 13 is a third structure of the connecting member 1 in the output pole base body 2 provided by an embodiment of the application Schematic.
  • module connecting piece 6 is connected to the output electrode of the adjacent battery module.
  • the module connecting piece 6 is correspondingly provided with a mounting hole, and the bolt 5 of the output pole base is correspondingly installed in the mounting hole, thereby achieving electrical connection between multiple battery modules.
  • the battery module includes a plurality of battery cells 7 and a frame structure.
  • the battery cells 7 may be secondary batteries that can be repeatedly charged and discharged, and the two battery cells 7 are connected by a bus bar 8.
  • the frame structure includes end plates 3, side plates, top plates, and bottom plates that are connected to each other.
  • the end plate 3 is located at one end of the output pole of the battery module and is used to resist the expansion force of the battery cell 7.
  • a plurality of battery cells 7 are located in the inner cavity of the frame structure and stacked on each other in the inner cavity.
  • the stacking direction can be the length direction L, the width direction or the height direction.
  • the battery module also includes an output pole base, which is used to provide insulation protection for the output pole connecting piece 4 in the battery module.
  • the module connecting piece 6 and each output pole base are connected by a plurality of bolts 5, and the positioning of the module connecting piece 6 can be realized by the plurality of bolts 5.
  • the output pole base provided by the embodiment of the present application includes a base body 2 and a connecting part 1, the base body 2 is provided with In the cavity 21, at least part of the connecting member 1 is located in the cavity 21 and fixed to the base body 2, wherein a plurality of first limiting members 11 are provided around the outer peripheral wall of the connecting member 1, and a plurality of first limiting members 11 is used to restrict the movement of the connecting part 1.
  • the base body 2 may be made of plastic or plastic material
  • the connecting part 1 is made of metal material
  • the connecting part 1 is fixed to the base body 2 and can be fixedly connected to the output electrode connecting piece 4 of the battery module. Therefore, the connecting component 1 can fix the output pole connecting piece 4 to the base body 2 to connect and fasten the output pole connecting piece 4.
  • the base body 2 is an injection-molded plastic structure or a plastic structure, namely The injection molded part, therefore, can provide insulation protection for the output pole connecting piece 4.
  • the connecting part 1 is injection molded into the base body 2 to achieve a fixed connection between the connecting part 1 and the base body 2.
  • the bolt 5 and the connecting part 1 are fixedly connected, specifically, a threaded connection may be adopted.
  • the output pole connecting piece 4 is provided with mounting holes adapted to the bolts 5. During connection, the bolts 5 fixed to the base body 2 can be inserted into the corresponding mounting holes, thereby realizing the connection between the base body 2 and the output pole connecting piece 4 Fixed connection between.
  • the first stopper 11 can fix the connecting part 1 in the base body 2 and can improve the transmission torque between the connecting part 1 and the cavity 21.
  • the connecting part 1 is not easy to circle.
  • a plurality of first stoppers 11 are provided around the outer peripheral wall of the connecting member 1, which can further improve the torque transmission between the connecting member 1 and the cavity 21, and improve the torsion resistance and pull-out resistance of the connecting member 1 in the base body 2
  • the outer peripheral wall of the connecting member 1 is provided with a plurality of first limiting members 11, which improves the reliability of the connection between the non-metallic material and the connecting member 1.
  • the first limiting member 11 may be a protrusion 111, a first groove 112, or other structures. As long as the torque transmission between the connecting member 1 and the cavity 21 can be improved, the connecting member 1 is on the base body 2.
  • the torsion resistance in the middle makes the connecting part 1 not easy to rotate in the circumferential direction or loose in the axial direction.
  • the first limiting member 11 includes a protrusion 111.
  • the protrusion 111 may be provided with one or more than one.
  • the inner peripheral wall of the cavity 21 is provided with recesses 212, and the protrusions 111 and the recesses 212 are matched one by one.
  • the protrusion 111 may be a continuous protrusion 111, or may be a plurality of protrusions 111 arranged at intervals, and the height of the protrusions 111 may be the same or different.
  • the protrusion 111 may also include a plurality of protrusions 111 arranged around the outer peripheral wall of the connecting member 1.
  • the transmission torque between the connecting part 1 and the cavity 21 can be improved.
  • the connecting part 1 is not easy to rotate circumferentially or axially. The looseness improves the reliability of the connection between the connecting component 1 and the base body 2.
  • the first limiting member 11 may also include a first groove 112.
  • One or more first grooves 112 may be provided.
  • the inner peripheral wall of the cavity 21 is provided with a convex From the rising part, the first groove 112 is matched with the convex part.
  • the depths of the plurality of first grooves 112 can be the same or different.
  • the size of the first grooves 112 can be the same or different.
  • a plurality of first grooves 112 are arranged around, which can increase the transmission torque between the connecting part 1 and the cavity 21. When the bolt 5 is tightened or the connecting part 1 is stressed, the connecting part 1 is not easy to rotate in the circumferential direction or loose in the axial direction, which improves The reliability of the connection between the connecting member 1 and the base body 2 is improved.
  • the first limiting member 11 extends along the height direction, or the first limiting member 11 is inclined with respect to the height direction H, which can improve the transmission torque between the connecting member 1 and the cavity 21, The reliability of the connection between the connecting member 1 and the base body 2 is improved.
  • the first limiting member 11 is a protrusion 111
  • the protrusion 111 extends along the height direction H.
  • the protrusion 111 is inclined with respect to the height direction H.
  • the first limiting member 11 is the first groove 112
  • the first groove 112 extends along the height direction H or the first groove 112 is inclined with respect to the height direction H.
  • the first limiting member 11 is inclined with respect to the height direction H, which can greatly increase the contact area with the base body 2 and improve the tightness of the connection between the two; A limiting member 11 can prevent the rotation of the connecting member 1 and improve the reliability of the connection between the connecting member 1 and the base body 2.
  • the outer peripheral wall of the connecting member 1 is provided with a third limiting member 13, and the third limiting member 13 is ring-shaped, along the height direction H ,
  • the third limiting member 13 is located in the middle of the connecting member 1, and the first limiting member 11 can be divided into upper and lower parts.
  • the third limiting member 13 can be a protrusion or a groove.
  • the inner wall of the cavity 21 The limiting portion 211 is formed, and the limiting portion 211 cooperates with the third limiting member 13, which can reduce the possibility of the connecting member 1 being separated from the cavity 21 due to tensile force, and improve the pull-out resistance of the connecting member 1 in the base body 2 ,
  • the connecting member 1 is not easy to loose in the axial direction, and the reliability of the connection between the connecting member 1 and the base body 2 is improved.
  • the middle referred to in this embodiment is not the middle position. As long as the third limiting member 13 can divide the first limiting member 11 into two parts in the height direction H, it is regarded as the third limiting member 13 being located in the connecting member 1 in the middle.
  • the first limiting member 11 includes a protrusion 111
  • the protrusion 111 includes a first protrusion 111a and a second protrusion 111b, along the height direction H
  • the first protrusion 111a and The second protrusions 111b are respectively located at two ends of the third limiting member 13.
  • the first protrusion 111a and the second protrusion 111b can prevent the connecting member 1 from rotating circumferentially or axially loosening, and the third limiting member 13 can reduce the possibility of the connecting member 1 being separated from the cavity 21 due to tension, thereby improving
  • the torsion resistance and pull-out resistance of the connecting part 1 in the base body 2 improve the reliability of the connection between the connecting part 1 and the base body 2.
  • the inclination direction of the first protrusion 111a is different from the inclination direction of the second protrusion 111b.
  • the connecting member 1 is not easy to rotate circumferentially or axially. The looseness improves the reliability of the connection between the connecting component 1 and the base body 2.
  • the inclination angle ⁇ of the first protrusion 111a satisfies: 30° ⁇ 45°
  • the inclination angle ⁇ of the second protrusion 111b satisfies: 30° ⁇ 45°, which can be improved
  • the tightness of the connection between the connecting part 1 and the base body 2; when a slightly larger torsion or shearing force is applied, a number of first protrusions 111a and second protrusions 111b can prevent the rotation of the connecting part 1, before tightening the bolt 5 or connecting
  • the connecting component 1 is not easy to rotate in the circumferential direction or loose in the axial direction, which improves the reliability of the connection between the connecting component 1 and the base body 2.
  • the first limiting member 11 includes a first groove 112
  • the third limiting member 13 includes a second groove
  • the depth of the first groove 112 is different from the depth of the second groove.
  • the connecting component 1 further includes a flange 12, and the flange 12 is located outside the cavity 21, which can increase the contact area between the connecting component 1 and the module connecting piece 6, and improve the flow capacity.
  • the flange 12 includes an upper surface 121, and the upper surface 121 is provided with a second limiting member 121a.
  • the second limiting member 121a may be a groove, a protrusion, or a non-slip pattern structure.
  • the battery module described above may also be referred to as a battery.

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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)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

一种输出极底座及电池模组，涉及电池的技术领域。上述输出极底座包括：底座本体（2）和连接部件（1）；所述底座本体（2）开设有空腔（21）；所述连接部件（1）的至少部分位于所述空腔（21）内，并与所述底座本体（2）固定；其中，环绕所述连接部件（1）的外周壁设有多个第一限位件（11），多个所述第一限位件（11）用于限制所述连接部件（1）活动。上述电池模组包括：电池单体（7）和上述输出极底座；输出极连接片（6）固定于所述输出极底座。上述输出极底座及电池模组解决了现有技术中存在的螺母与输出极底座本体连接不可靠的技术问题。

Description

输出极底座、电池模组及电动汽车
本申请要求于2019年09月11日提交中国专利局、申请号为201921515550.1、发明名称为“输出极底座及电池模组”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
本申请实施例涉及电池技术领域，尤其涉及一种输出极底座、电池模组及电动汽车。
背景技术
在电动汽车中，电池系统作为电动汽车的关键系统之一，其安全性能直接影响到整车的安全性。
在电池模组中，输出极底座安装于电池模组的输出端端板，用于连接输出极连接片，并为输出极连接片提供绝缘保护。目前，输出极底座的底座本体与输出极连接片之间通过螺母相连，且该螺母设置在底座本体内，输出极连接片开设螺栓孔，连接时，螺栓穿过该螺栓孔并与底座本体内的螺母螺栓连接。
在一些情形下，螺母包括螺纹内孔和圆柱形外周，整车在行驶过程中，电池模组会随整车振动，在振动冲击过程，螺母与输出极底座连接处会出现松动，甚至周向转动，使螺母与输出极底座连接不可靠，影响电池模组的性能。
发明内容
本申请的多个方面提供了一种输出极底座、电池模组及电动汽车，以缓解现有技术中存在的螺母与输出极底座连接不可靠的技术问题。
本申请的第一方面提供了一种输出极底座，包括：
底座本体，所述底座本体开设有空腔；
连接部件，所述连接部件的至少部分位于所述空腔内，并与所述底座本体固定；
其中，环绕所述连接部件的外周壁设有多个第一限位件，多个所述第一限位件用于限制所述连接部件活动。
在一种可能的设计中，所述第一限位件包括凸起或第一凹槽；
相应地，所述空腔的内周壁设有凹陷部或凸起部；
所述凸起与所述凹陷部配合，或所述第一凹槽与所述凸起部配合。
在一种可能的设计中，所述第一限位件沿高度方向H延伸；
或，所述第一限位件相对于高度方向H倾斜。
在一种可能的设计中，所述连接部件还包括法兰盘，且所述法兰盘位于所述空腔的外侧；
所述法兰盘包括上表面，所述上表面设有第二限位件。
在一种可能的设计中，所述连接部件的外周壁设有第三限位件，且所述第三限位件呈环形；
沿高度方向H，所述第三限位件位于所述连接部件的中间；
所述空腔的内壁形成限位部，所述限位部与所述第三限位件配合。
在一种可能的设计中，所述第一限位件包括凸起，所述凸起包括第一凸起和第二凸起；
沿高度方向H，所述第一凸起和所述第二凸起分别位于所述第三限位件的两端。
在一种可能的设计中，所述第一凸起的倾斜方向与所述第二凸起的倾斜方向不同。
在一种可能的设计中，所述第一凸起的倾斜角θ满足：30°<θ<45°；
和/或，所述第二凸起的倾斜角θ满足：30°<θ<45°。
在一种可能的设计中，所述第一限位件包括第一凹槽，所述第三限位件包括第二凹槽，所述第一凹槽的深度与所述第二凹槽的深度不同。
本申请的第二方面提供了一种电池模组，包括：
电池单体；
上述任一项所述的输出极底座；
输出极连接片，固定于所述输出极底座。
本申请的第三方面提供了一种电动汽车，包括所述的电池。
上述描述的输出极底座、电池模组及电动汽车，输出极底座包括底座本体和连接部件，底座本体开设有空腔，连接部件的至少部分位于空腔内，并与底座本体固定，其中，环绕连接部件的外周壁设有多个第一限位件，多个第一限位件用于限制连接部件活动。第一限位件能够将连接部件固定在底座本体内，可以提高连接部件与空腔之间的传递扭矩，在拧紧螺栓或连接部件受力时，连接部件不易周向转动或轴向松动，提高了连接部件与底座本体连接的可靠性。环绕连接部件的外周壁设有多个第一限位件，可以进一步提高连接部件与空腔之间的传递扭矩，提高连接部件与底座本体连接的可靠性。
本申请所提供的应当理解的是，以上的一般描述和后文的细节描述仅是示例性的，并不能限制本申请。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1为本申请实施例提供的电池模组的结构示意图；
图2为本申请实施例提供的输出极底座的结构示意图；
图3为本申请实施例提供的输出极底座的爆炸图；
图4为本申请实施例提供的输出极底座的主视图；
图5为图4的A-A向剖视图；
图6为本申请实施例提供的输出极底座的侧视图；
图7为图6的B-B向剖视图；
图8为连接部件的剖视图；
图9为底座本体的剖视图；
图10为本申请实施例提供的输出极底座本体中连接部件的第一种结构示意图；
图11为图10的主视图；
图12为本申请实施例提供的输出极底座本体中连接部件的第二种结构示意图；
图13为本申请实施例提供的输出极底座本体中连接部件的第三种结构示意图。
附图标记：
1-连接部件；
11-第一限位件；
111-凸起；
111a-第一凸起；
111b-第二凸起；
112-第一凹槽；
12-法兰盘；
121-上表面；
121a-第二限位件；
13-第三限位件；
2-底座本体；
21-空腔；
211-限位部；
212-凹陷部；
3-端板；
4-输出极连接片；
5-螺栓；
6-模组连接片；
7-电池单体；
8-汇流排。
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
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”。
图1为本申请实施例提供的电池模组的结构示意图；图2为本申请实施例提供的输出极底座的结构示意图；图3为本申请实施例提供的输出极底座的爆炸图；图4为本申请实施例提供的输出极底座的主视图；图5为图4的A-A向剖视图；图6为本申请实施例提供的输出极底座的侧视图；图7为图6的B-B向剖视图；图8为连接部件1的剖视图；图9为底座本体2的剖视图；图10为本申请实施例提供的输出极底座本体2中连接部件1的第一种结构示意图；图11为图10的主视图；图12为本申请实施例提供的输出极底座本体2中连接部件1的第二种结构示意图；图13为本申请实施例提供的输出极底座本体2中连接部件1的第三种结构示意图。
如图1所示，在电池包中，相邻的电池模组通过模组连接片6相连，且模组连接片6与相邻的电池模组的输出极相连，具体的，模组连接片6对应开设有安装孔，输出极底座的螺栓5对应安装于安装孔，从而实现多个电池模组之间的电连接。
电池模组包括多个电池单体7和框架结构，其中，电池单体7可以为能够重复充放电使用的二次电池，两个电池单体7之间通过汇流排8连接。框架结构包括相互连接的端板3、侧板、顶板和底板，其中，端板3位于该电池模组的输出极的一端，用于抵抗电池单体7的膨胀力。多个电池单体7位于框架结构的内腔，并在该内腔中相互堆叠设置，堆叠方向可为长度方向L、宽度方向或高度方向。
同时，该电池模组还包括输出极底座，该输出极底座用于为电池模组中的输出极连接片4提供绝缘保护。
当多个电池模组相连形成电池包时，模组连接片6与各个输出极底座之 间通过多个螺栓5相连，且通过多个螺栓5能够实现模组连接片6的定位.
如图2、图3、图4、图5、图6、图7、图8和图9所示，本申请实施例提供的输出极底座包括底座本体2和连接部件1，底座本体2开设有空腔21，连接部件1的至少部分位于空腔21内，并与底座本体2固定，其中，环绕连接部件1的外周壁设有多个第一限位件11，多个第一限位件11用于限制连接部件1活动。
其中，底座本体2可以为塑料或者塑胶材质，连接部件1为金属材质，连接部件1固定于底座本体2，并能够与电池模组的输出极连接片4固定连接。因此，该连接部件1能将输出极连接片4固定于底座本体2，起到连接和紧固输出极连接片4的作用，同时，该底座本体2为注塑成型的塑胶结构或塑料结构，即注塑件，因此，能够起到对输出极连接片4的绝缘保护。
连接部件1注塑于底座本体2内，从而实现连接部件1与底座本体2之间的固定连接。螺栓5与连接部件1之间固定连接，具体可以采用螺纹连接。该输出极连接片4开设有与螺栓5相适配的安装孔，连接时，固定于底座本体2的螺栓5能够插装于对应的安装孔，从而实现底座本体2与输出极连接片4之间的固定连接。
第一限位件11能够将连接部件1固定在底座本体2内，可以提高连接部件1与空腔21之间的传递扭矩，在拧紧螺栓5或连接部件1受力时，连接部件1不易周向转动或轴向松动，提高了连接部件1在底座本体2内的抗扭力和抗拉拔能力，提高了连接部件1与底座本体2连接的可靠性。环绕连接部件1的外周壁设有多个第一限位件11，可以进一步提高连接部件1与空腔21之间的传递扭矩，提高连接部件1在底座本体2中的抗扭力和抗拉拔能力，提高连接部件1与底座本体2连接的可靠性。
当底座本体2为塑料或塑胶材质等非金属材料时，连接部件1的外周壁设有多个第一限位件11，提高了非金属材料与连接部件1连接的可靠性。
第一限位件11可以为凸起111，也可以是第一凹槽112，还可以为其他结构，只要能提高连接部件1与空腔21之间的传递扭矩，连接部件1在底座本体2中的抗扭力，使连接部件1不易周向转动或轴向松动即可。
在一种可能的实现方式中，如图9、图10、图11和图12中，第一限位 件11包括凸起111，凸起111可以设置一个，也可以设置多个，相应的空腔21的内周壁设有凹陷部212，凸起111与凹陷部212一一配合。其中，凸起111可以为连续的凸起111，也可以为间隔设置的多个凸起111，凸起111的高度可以相同，也可以不同。如图12所示，凸起111还可以包括多个，多个凸起111环绕连接部件1的外周壁设置。通过在连接部件1的外周壁设置凸起111，可以提高连接部件1与空腔21之间的传递扭矩，在拧紧螺栓5或连接部件1受力时，连接部件1不易周向转动或轴向松动，提高了连接部件1与底座本体2连接的可靠性。
当然，如图13所示，第一限位件11还可以包括第一凹槽112，第一凹槽112可以设置一个，也可以设置多个，相应地，空腔21的内周壁设有凸起部，第一凹槽112与凸起部配合。当第一凹槽112设置多个时，多个第一凹槽112的深度可以相同，也可以不同，另外，第一凹槽112的大小可以相同也可以不同，通过在连接部件1的外周壁环绕设置多个第一凹槽112，可以提高连接部件1与空腔21之间的传递扭矩，在拧紧螺栓5或连接部件1受力时，连接部件1不易周向转动或轴向松动，提高了连接部件1与底座本体2连接的可靠性。
在一种可能的实现方式中，第一限位件11沿高度方向延伸，或，第一限位件11相对于高度方向H倾斜，可以提高连接部件1与空腔21之间的传递扭矩，提高连接部件1与底座本体2连接的可靠性。可选的，当第一限位件11为凸起111时，如图12所示，凸起111沿高度方向H延伸。如图10和图11所示，凸起111相对于高度方向H倾斜。当然，当第一限位件11为第一凹槽112时，第一凹槽112沿高度方向H延伸或第一凹槽112相对于高度方向H倾斜。可选地，第一限位件11相对于高度方向H倾斜，能够大大增加与底座本体2的接触面积，提高两者连接的紧密性；当受到稍大的扭力或剪切力时，若干第一限位件11能够阻止连接部件1的转动，提高连接部件1与底座本体2连接的可靠性。
如图8、图9、图10、图11、图12和图13所示，连接部件1的外周壁设有第三限位件13，且第三限位件13呈环形，沿高度方向H，第三限位件13位于连接部件1的中间，可以将第一限位件11分为上下两部分，第三限位件13可以为凸起，也可以为凹槽，空腔21的内壁形成限位部211，限位 部211与第三限位件13配合，可以减少连接部件1因受到拉力与空腔21脱离的可能性，提高连接部件1在底座本体2中的抗拉拔能力，使连接部件1不易轴向松动，提高了连接部件1与底座本体2连接的可靠性。本实施例所指的中间，并非正中位置，只要第三限位件13能够在高度方向H上将第一限位件11分为两部分，都视为第三限位件13位于连接部件1的中间。
如图10、图11和图12所示，第一限位件11包括凸起111，凸起111包括第一凸起111a和第二凸起111b，沿高度方向H，第一凸起111a和第二凸起111b分别位于第三限位件13的两端。第一凸起111a和第二凸起111b能使连接部件1不易周向转动或轴向松动，第三限位件13能减少连接部件1因受到拉力与空腔21脱离的可能性，提高了连接部件1在底座本体2中的抗扭力和抗拉拔能力，从而提高了连接部件1与底座本体2连接的可靠性。
在一种可能的实现方式中，第一凸起111a的倾斜方向与第二凸起111b的倾斜方向不同，在拧紧螺栓5或连接部件1受力时，连接部件1不易周向转动或轴向松动，提高了连接部件1与底座本体2连接的可靠性。
如图11所示，第一凸起111a的倾斜角θ满足：30°<θ<45°，和/或，第二凸起111b的倾斜角θ满足：30°<θ<45°，可以提高连接部件1与底座本体2连接的紧密性；当受到稍大的扭力或剪切力时，若干第一凸起111a和第二凸起111b能够阻止连接部件1的转动，在拧紧螺栓5或连接部件1受力时，连接部件1不易周向转动或轴向松动，提高了连接部件1与底座本体2连接的可靠性。
在一种可能的实现方式中，第一限位件11包括第一凹槽112，第三限位件13包括第二凹槽，第一凹槽112的深度与第二凹槽的深度不同，可以将连接部件1收到的扭力和拉拔力分散到第一凹槽112和第二凹槽，提高连接部件1与底座本体2连接的可靠性。
在一种可能的实现方式中，连接部件1还包括法兰盘12，且法兰盘12位于空腔21的外侧，可以提高连接部件1与模组连接片6的接触面积，提高过流能力。法兰盘12包括上表面121，上表面121设有第二限位件121a，第二限位件121a可以是凹槽，也可以是凸起，还可以是防滑纹结构。通过在法兰盘12的上表面121设置第二限位件121a能增大上表面121的摩擦系数， 提高连接部件1的防松能力，提高连接部件1与模组连接片6连接的可靠性。
本申请的另一实施例中，上述描述的电池模组也可以称为电池。
以上仅为本申请的可选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (11)

  1. 一种输出极底座，其特征在于，包括：
    底座本体(2)，所述底座本体(2)开设有空腔(21)；
    连接部件(1)，所述连接部件(1)的至少部分位于所述空腔(21)内，并与所述底座本体(2)固定；
    其中，环绕所述连接部件(1)的外周壁设有多个第一限位件(11)，多个所述第一限位件(11)用于限制所述连接部件(1)活动。
  2. 根据权利要求1所述的输出极底座，其特征在于，
    所述第一限位件(11)包括凸起(111)或第一凹槽(112)；
    相应地，所述空腔(21)的内周壁设有凹陷部(212)或凸起部；
    所述凸起(111)与所述凹陷部(212)配合，或所述第一凹槽(112)与所述凸起部配合。
  3. 根据权利要求2所述的输出极底座，其特征在于，
    所述第一限位件(11)沿高度方向(H)延伸；
    或，所述第一限位件(11)相对于高度方向(H)倾斜。
  4. 根据权利要求1-3中任意一项所述的输出极底座，其特征在于，
    所述连接部件(1)还包括法兰盘(12)，且所述法兰盘(12)位于所述空腔(21)的外侧；
    所述法兰盘(12)包括上表面(121)，所述上表面(121)设有第二限位件(121a)。
  5. 根据权利要求1-4任一项所述的输出极底座，其特征在于，
    所述连接部件(1)的外周壁设有第三限位件(13)，且所述第三限位件(13)呈环形；
    沿高度方向(H)，所述第三限位件(13)位于所述连接部件(1)的中间；
    所述空腔(21)的内壁形成限位部(211)，所述限位部(211)与所述第三限位件(13)配合。
  6. 根据权利要求5所述的输出极底座，其特征在于，
    所述第一限位件(11)包括凸起(111)，所述凸起(111)包括第一凸起(111a)和第二凸起(111b)；
    沿高度方向(H)，所述第一凸起(111a)和所述第二凸起(111b)分别位于所述第三限位件(13)的两端。
  7. 根据权利要求6所述的输出极底座，其特征在于，
    所述第一凸起(111a)的倾斜方向与所述第二凸起(111b)的倾斜方向不同。
  8. 根据权利要求7所述的输出极底座，其特征在于，
    所述第一凸起(111a)的倾斜角θ满足：30°<θ<45°；
    和/或，所述第二凸起(111b)的倾斜角θ满足：30°<θ<45°。
  9. 根据权利要求5-8中任意一项所述的输出极底座，其特征在于，所述第一限位件(11)包括第一凹槽(112)，所述第三限位件(13)包括第二凹槽，所述第一凹槽(112)的深度与所述第二凹槽的深度不同。
  10. 一种电池模组，其特征在于，包括：
    电池单体(7)；
    权利要求1-9任一项所述的输出极底座；
    输出极连接片(4)，固定于所述输出极底座。
  11. 一种电动汽车，包括如权利要求10所述的电池模组。
PCT/CN2020/106466 2019-09-11 2020-07-31 输出极底座、电池模组及电动汽车 WO2021047329A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4089827A1 (en) * 2021-05-14 2022-11-16 CALB Co., Ltd. Battery pack

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210110912U (zh) * 2019-09-11 2020-02-21 宁德时代新能源科技股份有限公司 输出极底座及电池模组
CN116799417B (zh) * 2023-08-22 2024-01-23 深圳海辰储能控制技术有限公司 电池模组、储能系统及用电设备

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1744350A (zh) * 2004-08-31 2006-03-08 张祥茂 蓄电池端子的制造方法
CN201413839Y (zh) * 2009-05-23 2010-02-24 广东猛狮电源科技股份有限公司 一种电池极柱的铜镶件
WO2011113058A1 (en) * 2010-03-12 2011-09-15 Water Gremlin Company Battery parts and associated methods of manufacture and use
CN105118955A (zh) * 2015-08-21 2015-12-02 超威电源有限公司 一种防极柱松动的铜端子及其加工方法
CN107925045A (zh) * 2015-08-20 2018-04-17 威格曼汽车有限两合公司 带有内部抗扭曲保护的电池套管
CN209000986U (zh) * 2018-11-13 2019-06-18 宁德时代新能源科技股份有限公司 一种输出极底座、电池模组及电池包
CN210110912U (zh) * 2019-09-11 2020-02-21 宁德时代新能源科技股份有限公司 输出极底座及电池模组

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101233322B1 (ko) * 2010-08-31 2013-02-14 로베르트 보쉬 게엠베하 이차 전지
US8841022B2 (en) * 2011-04-28 2014-09-23 Samsung Sdi Co., Ltd. Terminal of secondary battery and method of assembling the same
JP6720547B2 (ja) * 2016-01-18 2020-07-08 株式会社Ｇｓユアサ 蓄電装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1744350A (zh) * 2004-08-31 2006-03-08 张祥茂 蓄电池端子的制造方法
CN201413839Y (zh) * 2009-05-23 2010-02-24 广东猛狮电源科技股份有限公司 一种电池极柱的铜镶件
WO2011113058A1 (en) * 2010-03-12 2011-09-15 Water Gremlin Company Battery parts and associated methods of manufacture and use
CN107925045A (zh) * 2015-08-20 2018-04-17 威格曼汽车有限两合公司 带有内部抗扭曲保护的电池套管
CN105118955A (zh) * 2015-08-21 2015-12-02 超威电源有限公司 一种防极柱松动的铜端子及其加工方法
CN209000986U (zh) * 2018-11-13 2019-06-18 宁德时代新能源科技股份有限公司 一种输出极底座、电池模组及电池包
CN210110912U (zh) * 2019-09-11 2020-02-21 宁德时代新能源科技股份有限公司 输出极底座及电池模组

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3930089A4

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4089827A1 (en) * 2021-05-14 2022-11-16 CALB Co., Ltd. Battery pack
US11677121B2 (en) 2021-05-14 2023-06-13 Calb Co., Ltd. Battery pack

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EP3930089A4 (en) 2022-07-20

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