WO2022021885A1 - 一种电池箱体和电池包 - Google Patents

一种电池箱体和电池包 Download PDF

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Publication number
WO2022021885A1
WO2022021885A1 PCT/CN2021/080306 CN2021080306W WO2022021885A1 WO 2022021885 A1 WO2022021885 A1 WO 2022021885A1 CN 2021080306 W CN2021080306 W CN 2021080306W WO 2022021885 A1 WO2022021885 A1 WO 2022021885A1
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WO
WIPO (PCT)
Prior art keywords
cooling plate
battery case
reinforcing member
plate
battery
Prior art date
Application number
PCT/CN2021/080306
Other languages
English (en)
French (fr)
Inventor
冯俊敏
张万财
吴婷婷
Original Assignee
厦门海辰新能源科技有限公司
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 厦门海辰新能源科技有限公司 filed Critical 厦门海辰新能源科技有限公司
Priority to EP21848979.7A priority Critical patent/EP4120456A4/en
Publication of WO2022021885A1 publication Critical patent/WO2022021885A1/zh
Priority to US17/965,272 priority patent/US11791514B2/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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • 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
    • H01M50/256—Carrying devices, e.g. belts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • 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 present application relates to the field of batteries, and in particular, to a battery case and a battery pack.
  • the battery box is mainly used to support and store the battery module. During use, the battery module will generate heat, and a cooling system needs to be used to cool it down.
  • the cooling system includes a cooling plate attached to the outside of the battery box; the cooling plate is connected to the battery box; when the battery pack is loaded and running, the connection between the liquid cooling plate and the box is directly stressed, which is easy to cause. The connection fails, which in turn causes the cooling effect of the liquid-cooling plate to fail.
  • Embodiments of the present application provide a battery case and a battery pack, which improve the cooling effect of a cooling system on a battery module.
  • Embodiments of the present application provide a battery case, and the battery case may include:
  • the cooling plate is connected to the outside of the wall plate of the box body;
  • the reinforcing piece is connected with the box body, and the reinforcing piece abuts on a side of the cooling plate away from the wall plate.
  • the cooling plate is connected with the wall plate, the reinforcing piece is connected with the box body, and the reinforcing piece is in contact with the side of the cooling plate facing away from the wall plate.
  • the reinforcing member can keep the cooling plate and the box body in a state of being in contact with each other all the time. If there is no reinforcement, when the cooling plate is subjected to external pressure or the action of the battery module, the cooling plate may be bent and deformed to create a gap between the cooling plate and the wall plate.
  • the reinforcement is connected with the box body and abuts with the cooling plate, which increases the connection strength and rigidity of the cooling plate and the box body, and avoids the sealing failure caused by the force of the welding seam between the cooling plate and the box body during the operation of the battery pack, thereby causing The cooling effect of the cooling plate has failed.
  • a side of the cooling plate away from the box body may have a groove
  • the reinforcing member may be provided with a convex portion matching the groove
  • the convex portion may extend into
  • the groove can also abut with at least part of the wall of the groove.
  • the mating connection between the protruding part and the groove can make the reinforcement and the cooling plate abut better, so as to increase the degree of fit between the two.
  • a side of the cooling plate away from the box body may have a convex portion
  • the reinforcing member may be provided with a groove matching the convex portion
  • the convex portion may extend into The groove can also abut with at least part of the wall of the groove.
  • the number of the protrusions may be less than or equal to the number of the grooves.
  • a side of the cooling plate away from the box body may be a plane.
  • the reinforcing member may not be provided with a convex portion and directly abut with the plane of the cooling plate; or, the reinforcing member may be provided with a convex portion, so as to pass through the convex portion. The portion abuts the flat surface of the cooling plate.
  • the reinforcement member may be in surface contact with a side of the cooling plate facing away from the wall plate.
  • the reinforcing member is in contact with the cooling plate surface, so that the two can have a better degree of fit so as to avoid a gap between the two.
  • the side of the reinforcement member facing the cooling plate may be a curved surface or a flat surface.
  • the battery box may further include a thermal insulation layer, the thermal insulation layer is attached to a side of the cooling plate away from the wall plate, and the reinforcing member may be connected to the thermal insulation layer. layer contact.
  • the function of the thermal insulation layer is to insulate the cooling plate and prevent the cooling energy of the cooling plate from being lost to the side away from the wall plate.
  • the battery case may include a plurality of the reinforcing members, and the plurality of the reinforcing members may be arranged at intervals.
  • the battery case may include three or more reinforcement members, two of the reinforcement members are respectively connected to both ends of the cooling plate, and the remaining reinforcement members are connected to the cooling plate the middle connection.
  • opposite ends of the reinforcement member may be located on two sides of the cooling plate, respectively, and one end of the reinforcement member is connected to one side of the wall plate.
  • the box body may be provided with a lifting lug
  • the wall panel may be provided with a connecting portion
  • the connecting portion may be connected with an end of the lifting lug to enclose a lifting ring; the reinforcing member can be connected to the connecting portion.
  • the connecting portion may be integrally provided with the lifting lug.
  • the connecting part and the lifting lug are integrally arranged, which is beneficial to reduce the space occupied by the lifting lug and reduce the volume of the box body.
  • the reinforcement member may be plate-shaped, and the side of the reinforcement member away from the wall plate may be parallel to the wall plate.
  • Embodiments of the present application further provide a battery pack, which includes a battery module and a battery case provided according to the foregoing embodiments, wherein the battery module is installed in the battery case.
  • FIG. 1 shows a schematic structural diagram of a battery box provided in an embodiment of the present application from a first perspective.
  • FIG. 2 shows a schematic structural diagram of the battery case provided by the embodiment of the present application from a second perspective.
  • FIG. 3 shows a schematic structural diagram of a cooling plate and a reinforcing plate provided by an embodiment of the present application.
  • FIG. 4 shows a partial schematic diagram of the battery box of the present application, please refer to FIG. 4 , in this embodiment.
  • Icon 100-battery box body; 110-box body; 112-wall plate; 113-lifting lug; 114-connecting part; 120-cooling plate; 121-groove; 130-reinforcing piece; heat insulation.
  • connection can also be a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of the two elements.
  • connection can also be a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of the two elements.
  • FIG. 1 shows a schematic structural diagram of a battery case 100 provided by an embodiment of the present application from a first perspective
  • FIG. 2 is a schematic structural diagram of a battery case 100 provided by an embodiment of the present application from a second perspective. Please refer to FIG. 1 and FIG. 2.
  • This embodiment provides a battery case 100 for accommodating a battery module.
  • the battery box 100 may include a box body 110, a cooling plate 120 and a reinforcing member 130; the box body 110 may have an accommodating space, the accommodating space may be used to accommodate a battery module (not shown in the figure), and the battery box 100 may have a wall
  • the inner side of the plate 112 and the wall plate 112 may constitute the inner wall of the accommodating space.
  • the cooling plate 120 may be connected to the box body 110, and the cooling plate 120 may be connected to the outer side of the wall plate 112; that is, the cooling plate 120 may be connected to the side of the wall plate 112 away from the accommodating space.
  • the reinforcement member 130 may abut with the side of the cooling plate 120 away from the wall plate 112 , and the reinforcement member 130 may be connected with the box body 110 .
  • the wall plate 112 connected to the cooling plate 120 may be the bottom plate of the box body 110 , and the wall plate 112 may constitute the bottom wall of the accommodating space. It can be understood that, in other embodiments of the present application, the wall plate 112 may be a side plate of the box body 110, and the side plate may be connected to the cooling plate 120; or, in other embodiments of the present application, it can also be used as required A cooling plate 120 is provided on both the bottom plate and the side plate of the box body 110 .
  • the wall plate 112 is used as the bottom plate of the box body 110 as an example for description. It can be understood that, the wall plate 112 being the side plate of the box body 110 can also have the same effect.
  • cooling plate 120 and the wall plate 112 of the box body 110 may be welded by friction stir welding.
  • FIG. 3 shows a schematic structural diagram of the cooling plate 120 and the reinforcing member 130 provided by the embodiment of the present application.
  • the cooling plate 120 may be formed by stamping, and the cooling plate 120 may be provided with a plurality of A cooling channel (not shown in FIG. 3 ) for the cooling liquid to flow through, therefore, a plurality of elongated grooves 121 can be formed between the outer side walls of adjacent cooling channels; in other words, the surface of the cooling plate 120 can be There are a plurality of grooves 121 .
  • the reinforcement 130 may abut against the surface of the cooling plate 120 .
  • the reinforcing member 130 may be provided with a plurality of convex portions 131 , and one convex portion 131 may correspond to one groove 121 .
  • a convex portion 131 may protrude into a groove 121 so that the convex portion 131 can abut against at least part of the wall of the groove 121 .
  • the convex portion 131 can extend into a groove 121, so that the convex portion 131 abuts against the bottom wall, side wall, or all walls of the groove 121.
  • the convex portion 131 and the groove 121 Abutting part of the walls or all the walls can avoid the relative movement of the convex part 131 and the groove 121, so that the reinforcement 130 and the cooling plate 120 are in a better abutting state, so as to avoid the reinforcement 130 is relatively movable with the cooling plate 120 .
  • the number of protrusions 131 may be less than the number of grooves 121.
  • the protrusions 131 of the reinforcing member 130 only protrude into part of the grooves 121, which can also achieve stable reinforcement.
  • the function of the component 130 and the cooling plate 120 is not limited to be less than the number of grooves 121.
  • each groove 121 are almost the same, so the shape and size of each convex portion 131 are almost the same. It can be understood that, in other embodiments of the present application, the plurality of grooves 121 can be set to be different according to requirements, and the corresponding convex portions 131 can be adjusted adaptively.
  • the cooling plate 120 may not have the shape shown in the embodiment of the present application, and the grooves 121 on the surface of the cooling plate 120 may be formed in the process of preparing the cooling channel in the early stage, or in the later stage. Forming.
  • the side of the cooling plate 120 away from the wall plate 112 may be a plane without the groove 121 ; correspondingly, the reinforcing member 130 may directly abut against the plane of the cooling plate 120 without the convex portion 131 , or the reinforcing member 130 may be provided with the convex portion 131 contact with the plane.
  • protrusions may be provided on the cooling plate 120
  • depressions may be provided on the reinforcement member 130
  • the cooling plate 120 and the reinforcement member 130 may be relatively stable by the protrusions extending into the depressions.
  • the side of the reinforcement 130 facing the cooling plate 120 may be in surface contact with the cooling plate 120 .
  • the side of the reinforcement member 130 facing the cooling plate 120 may be a curved surface or a flat surface, and the surface contact can reduce the gap between the reinforcement member 130 and the cooling plate 120 , so as to avoid deformation of the cooling plate 120 as much as possible.
  • the reinforcing member 130 may be an elongated plate, and the cooling plate 120 may also be a substantially rectangular plate; the reinforcing member 130 may extend from one side of the cooling plate 120 to the other side of the cooling plate 120 .
  • the opposite ends of the reinforcement member 130 along the length direction thereof may be located on two sides of the cooling plate 120 respectively, so that the cooling plate 120 is abutted by the reinforcement member 130 along the length direction of the reinforcement member 130 .
  • the side of the reinforcing member 130 away from the wall plate 112 may be parallel to the wall plate 112.
  • the reinforcing member 130 may be provided in a curved shape, and the reinforcing member 130 may be curved and disposed on the cooling plate The surface of the cooling plate 120 , or, in other embodiments, the reinforcing member 130 may also be in a plate shape similar to the shape of the cooling plate 120 .
  • the battery case 100 may include three reinforcing members 130 , and the three reinforcing members 130 may be arranged at intervals.
  • the three reinforcement members 130 may be arranged in parallel. It is understood that in other embodiments of the present application, the three reinforcement members 130 may be arranged at a certain angle interval between each other;
  • the reinforcing pieces 130 are arranged in a connected manner, for example, the three reinforcing pieces 130 are H-shaped after being connected, and so on.
  • the number of reinforcing members 130 may not be limited to three, for example, may be one, two, four or more, and so on.
  • the shape is not limited, for example, the reinforcing member 130 may be one, the reinforcing member 130 may be scattered, and the reinforcing member 130 may have parts extending in multiple directions, and each part may be in contact with the cooling plate 120 .
  • two of the three reinforcement members 130 may be connected to opposite ends of the cooling plate 120, respectively, in other words, one reinforcement member 130 may be connected to one end of the cooling plate 120, and the other reinforcement member may be connected to one end of the cooling plate 120. 130 may be connected with the other end of the cooling plate 120 .
  • the remaining reinforcement 130 can be connected to the middle of the cooling plate 120 , and the middle here is not limited to the middle position in the size of the cooling plate 120 , but refers to the position not the end of the cooling plate 120 .
  • the edge of the end of the cooling plate 120 can be avoided.
  • the reinforcing member 130 can keep the end of the cooling plate 120 in contact with the box body 110 . Even if the force exerted by the environment or the battery module is applied, the welding seam between the cooling plate 120 and the box body 110 will not be subjected to force to cause sealing failure to avoid the failure of the cooling effect.
  • the reinforcement member 130 may not be connected with the end of the cooling plate 120 .
  • the battery box 100 may also be provided with a heat insulating layer 140, and the heat insulating layer 140 may be connected to the side of the cooling plate 120 away from the wall plate 112 by spraying, and the reinforcing member 130 may be connected to the heat insulating layer 140. Layer 140 abuts.
  • the function of the heat insulating layer 140 is to insulate the cooling plate 120 to prevent the cooling capacity of the cooling plate 120 from being lost to the side away from the wall plate 112 .
  • the heat insulating layer 140 may be formed by curing a heat insulating glue attached to the surface of the cooling plate 120 , and the shape of the heat insulating layer 140 facing away from the surface of the cooling plate 120 may be similar to the shape of the surface of the cooling plate 120 facing away from the wall plate 112 . . Therefore, in this embodiment, the shape of the cooling plate 120 will be described as an example. It can be understood that, the heat insulating layer 140 can also change the shape of the side of the cooling plate 120 facing away from the wall plate 112 according to filling requirements.
  • FIG. 4 shows a partial schematic view of the battery case 100 of the present application. Please refer to FIG. 4 .
  • the reinforcing member 130 may be connected to the battery case 100 by bolts.
  • the box body 110 can be provided with lifting lugs 113
  • the wall plate 112 can be provided with connecting parts 114
  • the connecting parts 114 can be connected with the ends of the lifting lugs 113 to form a suspension ring;
  • a connecting portion 114 can be protruded from the wall plate 112 , and the connecting portion 114 and the lifting lug 113 can be surrounded by a suspension ring. In order to reduce the volume of the box body 110 .
  • the reinforcing member 130 can be connected to the connecting portion 114 , and the connecting portion 114 and the reinforcing member 130 can be connected without bending the reinforcing member 130 .
  • the reinforcement member 130 may also be connected to the box body 110 by other connection methods.
  • the reinforcement member 130 may be welded with the box body 110, or may be connected by screw connection or snap connection way to connect.
  • the advantages of the battery case 100 provided by the embodiments of the present application at least include:
  • the cooling plate 120 is connected to the wall plate 112 of the box body 110 , the reinforcement member 130 abuts on the side of the cooling plate 120 away from the wall plate 112 , and the reinforcement member 130 is connected to the box body 110 .
  • the reinforcing member 130 can keep the cooling plate 120 and the box body 110 in a state of being attached all the time, the reinforcing member 130 is connected with the box body 110 , and the reinforcing member 130 is in contact with the cooling plate 120 to increase the connection strength between the cooling plate 120 and the box body 110 and stiffness, so as to avoid the sealing failure caused by the stress on the welding seam between the cooling plate 120 and the box body 110 during the operation of the battery pack, thereby causing the cooling effect of the cooling plate 120 to fail.
  • the cooperating connection between the convex portion 131 and the groove 121 can make the reinforcing member 130 and the cooling plate 120 better. resistance to increase the degree of fit between the two.
  • the embodiment of the present application also provides a battery pack, the battery pack may include a battery module and the above-mentioned battery box 100 , and the battery module is installed in the battery box 100 .
  • the battery pack has at least all the advantages of the battery case 100 described above, and the cooling plate 120 of the battery pack can have a better cooling effect on it.
  • the present application provides a battery case and a battery pack.
  • the battery box body includes: a box body; a cooling plate; the cooling plate is connected to the outer side of the wall plate of the box body; The cooling plate is connected with the box body, the reinforcement piece is connected with the box body, and the reinforcement piece is in contact with the side of the cooling plate facing away from the wall plate.
  • the reinforcement can keep the cooling plate and the box body in a state of close contact.
  • the cooling plate may be bent and deformed, resulting in a gap between the reinforcement and the box body.
  • the battery cases and battery packs of the present application are reproducible and can be used in a variety of industrial applications.
  • the battery cases and battery packs of the present application can be used in any component that requires power from 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)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

一种电池箱体（100）和电池包，涉及电池领域。电池箱体（100）包括：箱本体（110）；冷却板（120）；冷却板（120）与箱本体（110）的壁板（112）的外侧连接；以及加强件（130），加强件（130）与箱本体（110）连接，且加强件（130）与冷却板（120）的远离壁板（112）的一侧抵接。冷却板（120）与箱本体（110）连接，加强件（130）与箱本体（110）连接，且加强件（130）与冷却板（120）背离壁板（112）的一侧抵接。加强件（130）可以使冷却板（120）与箱本体（110）一直处于贴合的状态，当冷却板（120）受到外部压力或者电池模组的作用后，冷却板（120）可能会弯曲变形从而与壁板（112）之间产生缝隙；加强件（130）与箱本体（110）连接，且与冷却板（120）抵接，增加冷却板（120）与箱本体（110）的连接强度及刚度，避免电池包在运行过程中冷却板（120）与箱本体（110）之间焊缝受力导致密封失效，进而造成冷却板（120）冷却效果失效。

Description

一种电池箱体和电池包
相关申请的交叉引用
本申请要求于2020年07月29日提交中国专利局的申请号为202021537100.5、名称为“一种电池箱体和电池包”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
本申请涉及电池领域，具体而言，涉及一种电池箱体和电池包。
背景技术
电池箱体主要用于支撑和收纳电池模组，在使用过程中由于电池模组会产生热量需要采用冷却系统为其降温。现有技术中，冷却系统包括贴合于电池箱体外的冷却板；冷却板与电池箱体连接；电池包在装车运行过程中，液冷板与箱体连接处直接受力，容易造成连接处失效，进而导致液冷板冷却效果失效。
发明内容
本申请实施例提供了一种电池箱体和电池包，其改善了冷却系统对电池模组的冷却效果。
本申请的实施例提供了一种电池箱体，电池箱体可以包括：
箱本体；
冷却板；所述冷却板与所述箱本体的壁板的外侧连接；以及
加强件，所述加强件与所述箱本体连接，且所述加强件与所述冷却板的远离所述壁板的一侧抵接。
冷却板与壁板连接，加强件与箱本体连接，且加强件与冷却板背离壁板的一侧抵接。加强件可以使冷却板与箱本体一直处于贴合的状态。如果没有加强件，当冷却板受到外部压力或者电池模组的作用后，冷却板可能会弯曲变形从而与壁板之间产生缝隙。加强件与箱本体连接，且与冷却板抵接，增加冷却板与箱体的连接强度及刚度，避免电池包在运行过程中冷却板与箱本体之间焊缝受力导致密封失效，进而造成冷却板冷却效果失效。
在本申请的一些实施例中，所述冷却板远离所述箱本体的一侧具有可以凹槽，所述加强件可以设置有与所述凹槽匹配的凸部，所述凸部可以伸入所述凹槽并可以与所述凹槽的至少部分壁体抵接。
凸部与凹槽配合连接可以使加强件与冷却板较好的抵持以增加两者的贴合程度。
在本申请的一些实施例中，所述冷却板远离所述箱本体的一侧可以具有凸部，所述加强件可以设置有与所述凸部匹配的凹槽，所述凸部可以伸入所述凹槽并可以与所述凹槽的 至少部分壁体抵接。
在本申请的一些实施例中，所述凸部的数量可以小于等于所述凹槽的数量。
在本申请的一些实施例中，所述冷却板远离所述箱本体的一面可以为平面。
在本申请的一些实施例中，所述加强件可以不设置有凸部而直接与所述冷却板的所述平面抵接；或者，所述加强件可以设置有凸部，从而通过所述凸部与所述冷却板的所述平面抵接。
在本申请的一些实施例中，所述加强件可以与所述冷却板的背离所述壁板的一面面接触。
加强件与冷却板面接触，能使两者具有较佳的贴合程度从而可避免两者之间出现缝隙。
在本申请的一些实施例中，所述加强件面向所述冷却板的一面可以为曲面或者平面。
在本申请的一些实施例中，电池箱体还可以包括隔热层，所述隔热层贴设于所述冷却板远离所述壁板的一侧，所述加强件可以与所述隔热层抵接。
隔热层的作用在于为冷却板隔热，避免冷却板的冷量向背离壁板的一侧流失。
在本申请的一些实施例中，电池箱体可以包括多个所述加强件，多个所述加强件可以间隔设置。
在本申请的一些实施例中，电池箱体可以包括三个及以上数量的加强件，两个所述加强件分别与所述冷却板的两端连接，其余所述加强件与所述冷却板的中部连接。
在本申请的一些实施例中，加强件相对的两端可以分别位于所述冷却板的两侧，且所述加强件的一端与所述壁板的一侧连接。
在本申请的一些实施例中，箱本体可以设置有吊耳，所述壁板可以设置有连接部，所述连接部可以与所述吊耳的端部连接以围成吊环；所述加强件可以与所述连接部连接。
在本申请的一些实施例中，所述连接部可以与所述吊耳一体设置。
将连接部与吊耳一体设置，有利于降低吊耳占用的空间以减小箱本体的体积。
在本申请的一些实施例中，加强件可以为板状，所述加强件远离所述壁板的一面可以与所述壁板平行。
本申请的实施例还提供了一种电池包，电池包包括电池模组和根据前述实施例提供的电池箱体，所述电池模组安装于所述电池箱体内。
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，应当理解，以下附图仅示出了本申请的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。
图1示出了本申请实施例提供的电池箱体第一视角的结构示意图。
图2示出了本申请实施例提供的电池箱体第二视角的结构示意图。
图3示出了本申请实施例提供的冷却板与加强板的结构示意图。
图4示出了本申请的电池箱体的局部示意图，请参阅图4，在本实施例中。
图标：100-电池箱体；110-箱本体；112-壁板；113-吊耳；114-连接部；120-冷却板；121-凹槽；130-加强件；131-凸部；140-隔热层。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本申请实施例的组件可以以各种不同的配置来布置和设计。
因此，以下对在附图中提供的本申请的实施例的详细描述并非旨在限制要求保护的本申请的范围，而是仅仅表示本申请的选定实施例。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他实施例，都属于本申请保护的范围。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步定义和解释。
在本申请实施例的描述中，需要理解的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，或者是该申请产品使用时惯常摆放的方位或位置关系，或者是本领域技术人员惯常理解的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的设备或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”等仅用于区分描述，而不能理解为指示或暗示相对重要性。
在本申请实施例的描述中，还需要说明的是，除非另有明确的规定和限定，术语“设置”、“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
实施例
图1示出了本申请实施例提供的电池箱体100第一视角的结构示意图，图2示出了本申请实施例提供的电池箱体100第二视角的结构示意图，请参阅图1与图2，本实施例提 供了一种电池箱体100，用于容纳电池模组。
电池箱体100可以包括箱本体110、冷却板120和加强件130；箱本体110可以具有容纳空间，容纳空间可以用于容纳电池模组(图中未示出)，电池箱体100可以具有壁板112，壁板112的内侧可以构成容纳空间的内壁。
冷却板120可以与箱本体110连接，冷却板120可以与壁板112的外侧连接；即冷却板120可以与壁板112背离容纳空间的一侧连接。
加强件130可以与冷却板120背离壁板112的一侧抵接，加强件130可以与箱本体110连接。
需要说明的是，在本实施例中，与冷却板120连接的壁板112可以是箱本体110的底板，该壁板112可以构成容纳空间的底壁。可以理解的是，在本申请的其他实施例中，壁板112可以为箱本体110的侧板，侧板可以与冷却板120连接；或者，在本申请的其他实施例中，根据需要也可以在箱本体110的底板、侧板均设置冷却板120。
在本实施例中，就以壁板112为箱本体110底板作为示例进行描述。可以理解的是，壁板112为箱本体110的侧板也可以具有相同的效果。
在本实施例中，冷却板120与箱本体110的壁板112可以通过搅拌摩擦焊焊接而成。
图3示出了本申请实施例提供的冷却板120与加强件130的结构示意图，请参阅图3，在本实施例中，冷却板120可以通过冲压成型，冷却板120内可以设置有多个供冷却液流过的冷却流道(图3中未示出)，因此，相邻的冷却流道的外侧壁之间可以形成多个长条形凹槽121；换言之，冷却板120的表面可以具有多个凹槽121。加强件130可以与冷却板120的表面抵接。
在本实施例中，加强件130可以设置有多个凸部131，一个凸部131可以与一个凹槽121对应。一个凸部131可以伸入一个凹槽121内以使凸部131能与凹槽121的至少部分壁体抵接。换言之，凸部131可以伸入一个凹槽121内，使凸部131与凹槽121的底壁、侧壁、或者所有的壁体均抵接，可以理解的是，凸部131与凹槽121的部分壁体抵接或者与所有壁体均抵接，都可以避免凸部131与凹槽121发生相对活动，以使加强件130与冷却板120呈现较好的抵持状态，从而避免加强件130与冷却板120相对活动。
需要说明的是，在本申请的其他实施例中，凸部131的数量可以少于凹槽121的数量，例如，加强件130的凸部131仅伸入部分凹槽121内同样可以实现稳定加强件130与冷却板120的作用。
在本实施例中，每个凹槽121的形状和尺寸都几乎相同，因此每个凸部131的形状和尺寸都几乎相同。可以理解的是，在本申请的其他实施例中，可以根据需求将多个凹槽121设置为不完全相同，相应的凸部131可以进行适应性的匹配调整。
此外，在本申请的其他实施例中，冷却板120可以不为本申请实施例所示的形状，冷却板120表面的凹槽121可以为前期制备冷却流道的过程形成的，或者后期进行制作形成的。
冷却板120远离壁板112的一面可以为平面，不具有凹槽121；相应地，加强件130可以不设置凸部131而直接与冷却板120的平面抵接，或者加强件130设置凸部131与平面抵接。
可以理解的是，在其他实施例中，可以在冷却板120上设置凸起，相应地，在加强件130上设置凹陷，通过凸起伸入凹陷实现冷却板120与加强件130的相对稳定。
可选地，为了增加加强件130对冷却板120的抵持效果，加强件130面向冷却板120的一面可以与冷却板120面接触。加强件130面向冷却板120的一面可以为曲面或者平面，面接触可以减小加强件130与冷却板120之间的缝隙，尽可能地避免冷却板120形变。
在本实施例中，加强件130可以为长条形板件，冷却板120也可以为大致为长方形板状；加强件130可以从冷却板120的一侧延伸至冷却板120的另一侧。加强件130沿其长度方向相对的两端可以分别位于冷却板120的两侧，使冷却板120沿加强件130的长度方向均被加强件130抵接。
在本实施例中，加强件130远离壁板112的一面可以与壁板112平行，在本申请的其他实施例中，加强件130可以设置为弯曲的形状，加强件130可以弯曲设置于冷却板120的表面，或者，在其他实施例中，加强件130也可以为与冷却板120形状近似的板状。
请再次参阅图3，在本实施例中，电池箱体100可以包括三个加强件130，三个加强件130可以间隔设置。在本实施例中，三个加强件130可以平行设置，可以理解的是，在本申请的其他实施例中，三个加强件130可以以相互之间具有一定的夹角间隔设置；或者三个加强件130以相互连接的方式设置，例如三个加强件130连接后为H形等等。
此外，在本申请的其他实施例中，加强件130的数量可以不仅限于三个，例如可以为一个、两个、四个或者更多个等等。不对其形状进行限制，例如，加强件130可以为一个，加强件130可以为散射状，加强件130可以具有朝向多个方向延伸的部位，每个部位可以均与冷却板120抵接。
可选地，在本实施例中，三个加强件130的其中两个可以分别与冷却板120相对的两端连接，换言之，一个加强件130可以与冷却板120的一端连接，另一个加强件130可以与冷却板120的另一端连接。剩余一个加强件130可以与冷却板120的中部连接，此处的中部并非仅限于冷却板120尺寸上的中间位置，而是指并非冷却板120端部的位置。
采用该设置方式，在加强件130的作用下可以避免冷却板120的端部翘边。加强件130可以使冷却板120的端部与箱本体110一直处于抵接状态，即使受到环境或者电池模组施 加的力，冷却板120与箱本体110之间的焊缝不会受力导致密封失效，避免冷却效果的失效。
可以理解的是，在本申请的其他实施例中，加强件130可以不与冷却板120的端部连接。
在本实施例中，电池箱体100还可以设置有隔热层140，隔热层140可以采用喷涂的方式与冷却板120远离壁板112的一侧连接，加强件130可以与所述隔热层140抵接。
隔热层140的作用在于为冷却板120隔热，避免冷却板120的冷量向背离壁板112的一侧流失。
在本实施例中，隔热层140可以为贴合于冷却板120表面的隔热胶固化形成，隔热层140背离冷却板120表面的形状可以与冷却板120背离壁板112一面的形状相似。因此，在本实施例中，就以冷却板120的形状作为示例进行描述。可以理解的是，隔热层140也可以根据填充需求对冷却板120背离壁板112一面的形状进行更改。
图4示出了本申请的电池箱体100的局部示意图，请参阅图4，在本实施例中，加强件130可以与电池箱体100通过螺栓连接。
箱本体110可以设置有吊耳113，壁板112可以设置有连接部114，连接部114可以与吊耳113的端部连接以围成吊环；加强件130可以与连接部114连接。
在本实施例中，壁板112可以凸设连接部114，连接部114可以与吊耳113围设成吊环，可以将连接部114与吊耳113一体设置，有利于降低吊耳113占用的空间以减小箱本体110的体积。此外，可以将加强件130与连接部114连接，不需要对加强件130进行弯折便可以将连接部114与加强件130连接。
需要说明的是，在本申请的其他实施例中，加强件130也可以通过其他连接方式与箱本体110连接，例如，加强件130可以与箱本体110焊接，或者，可以采用螺纹连接或者卡接的方式连接。
本申请实施例提供的电池箱体100的优点至少包括：
冷却板120与箱本体110的壁板112连接，加强件130与冷却板120背离壁板112的一侧抵接，且加强件130与箱本体110连接。加强件130可以使冷却板120与箱本体110一直处于贴合的状态，加强件130与箱本体110连接，且加强件130与冷却板120抵接，增加冷却板120与箱本体110的连接强度及刚度，避免电池包在运行过程中冷却板120与箱本体110之间焊缝受力导致密封失效，进而造成冷却板120冷却效果失效。
可选地，就通过凸部131与凹槽121配合连接实现加强件130与冷却板120连接的实施例而言，凸部131与凹槽121配合连接可以使加强件130与冷却板120较好的抵持以增加两者的贴合程度。
本申请的实施例还提供了一种电池包，电池包可以包括电池模组和上述的电池箱体100，电池模组安装于电池箱体100内。
该电池包至少具有上述电池箱体100的所有优点，该电池包的冷却板120可以对其具有较好的冷却效果。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。
工业实用性
本申请提供了一种电池箱体和电池包。电池箱体包括：箱本体；冷却板；冷却板与箱本体的壁板的外侧连接；以及加强件，加强件与箱本体连接，且加强件与冷却板的远离壁板的一侧抵接。冷却板与箱本体连接，加强件与箱本体连接，且加强件与冷却板背离壁板的一侧抵接。加强件可以使冷却板与箱本体一直处于贴合的状态，当冷却板受到外部压力或者电池模组的作用后，冷却板可能会弯曲变形从而与壁板之间产生缝隙；加强件与箱体体连接，且与冷却板抵接，增加冷却板与箱体的连接强度及刚度，避免电池包在运行过程中冷却板与箱体体之间焊缝受力导致密封失效，进而造成冷却板冷却效果失效。
此外，可以理解的是，本申请的电池箱体和电池包是可以重现的，并且可以用在多种工业应用中。例如，本申请的电池箱体和电池包可以用于需要用电池供以电力的任何部件。

Claims (16)

  1. 一种电池箱体，其特征在于，所述电池箱体包括：
    箱本体；
    冷却板；所述冷却板与所述箱本体的壁板的外侧连接；以及
    加强件，所述加强件与所述箱本体连接，且所述加强件与所述冷却板的远离所述壁板的一侧抵接。
  2. 根据权利要求1所述的电池箱体，其特征在于，所述冷却板远离所述箱本体的一侧具有凹槽，所述加强件设置有与所述凹槽匹配的凸部，所述凸部伸入所述凹槽并与所述凹槽的至少部分壁体抵接。
  3. 根据权利要求1所述的电池箱体，其特征在于，所述冷却板远离所述箱本体的一侧具有凸部，所述加强件设置有与所述凸部匹配的凹槽，所述凸部伸入所述凹槽并与所述凹槽的至少部分壁体抵接。
  4. 根据权利要求2或3所述的电池箱体，其特征在于，所述凸部的数量小于等于所述凹槽的数量。
  5. 根据权利要求1所述的电池箱体，其特征在于，所述冷却板远离所述箱本体的一面为平面。
  6. 根据权利要求5所述的电池箱体，其特征在于，所述加强件不设置有凸部而直接与所述冷却板的所述平面抵接；或者，所述加强件设置有凸部，从而通过所述凸部与所述冷却板的所述平面抵接。
  7. 根据权利要求1至6中的任一项所述的电池箱体，其特征在于，所述加强件与所述冷却板的背离所述壁板的一面面接触。
  8. 根据权利要求1至7中的任一项所述的电池箱体，其特征在于，所述加强件面向所述冷却板的一面为曲面或者平面。
  9. 根据权利要求1至8中的任一项所述的电池箱体，其特征在于，所述电池箱体还包括隔热层，所述隔热层连接于所述冷却板远离所述壁板的一侧，所述加强件与所述隔热层抵接。
  10. 根据权利要求1至9中的任一项所述的电池箱体，其特征在于，所述电池箱体包括多个所述加强件，多个所述加强件间隔设置。
  11. 根据权利要求1至10中的任一项所述的电池箱体，其特征在于，所述电池箱体包 括三个及以上数量的加强件，两个所述加强件分别与所述冷却板的两端抵接，其余所述加强件与所述冷却板的中部连接。
  12. 根据权利要求1至11中的任一项所述的电池箱体，其特征在于，所述加强件相对的两端分别位于冷却板的两侧，且所述加强件相对的两端均与所述壁板连接。
  13. 根据权利要求1至12中的任一项所述的电池箱体，其特征在于，所述箱本体设置有吊耳，所述壁板设置有连接部，所述连接部与所述吊耳的端部连接以围成吊环；所述加强件与所述连接部连接。
  14. 根据权利要求13所述的电池箱体，其特征在于，所述连接部与所述吊耳一体设置。
  15. 根据权利要求1至14中的任一项所述的电池箱体，其特征在于，所述加强件为板状，所述加强件远离所述壁板的一面与所述壁板平行。
  16. 一种电池包，其特征在于，所述电池包包括电池模组和权利要求1至15中的任一项所述的电池箱体，所述电池模组安装于所述电池箱体内。
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