WO2023173918A1 - 箱体、电池及用电装置 - Google Patents

箱体、电池及用电装置 Download PDF

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Publication number
WO2023173918A1
WO2023173918A1 PCT/CN2023/071536 CN2023071536W WO2023173918A1 WO 2023173918 A1 WO2023173918 A1 WO 2023173918A1 CN 2023071536 W CN2023071536 W CN 2023071536W WO 2023173918 A1 WO2023173918 A1 WO 2023173918A1
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WO
WIPO (PCT)
Prior art keywords
box
flange
case
battery
present application
Prior art date
Application number
PCT/CN2023/071536
Other languages
English (en)
French (fr)
Inventor
罗文超
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 WO2023173918A1 publication Critical patent/WO2023173918A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • 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 belongs to the technical field of box equipment, and in particular relates to a box, a battery and an electrical device.
  • Battery cells are a new renewable energy system and are commonly used devices for storing energy.
  • a sealing structure is usually used at the connection between the upper and lower casings of the battery cells, thereby improving the airtightness of the battery cell casing and ensuring safety.
  • the existing closed structure occupies a relatively large volume, which affects the size and is not conducive to actual use. Therefore, how to optimize the sealed structure of the casing is an urgent technical problem that needs to be solved in battery equipment technology.
  • the embodiments of the present application provide a box, a battery and an electrical device, which can improve the existing box structure, ensure airtightness, and improve the problem of increased external dimensions of the box caused by the airtight structure.
  • a first aspect of the embodiment of the present application provides a box body, including a first box body, a second box body, a sealing member and a matching member.
  • the first box has a first opening
  • the second box is used to cover the first opening
  • the sealing member is at least partially clamped between the first box and the second box. and used to seal the first opening
  • the fitting piece is accommodated in the first box and connected to the first box, and the fitting piece and the second box clamp the sealing piece at least part of.
  • connection point of the first box and the second box can be fully utilized, so that the connection position of the first box and the second box can be moved at least partially into the first box, thereby While ensuring the connection area between the first box and the second box, the volume ratio of the connection outside the box is reduced, and the external structure of the sealed box is improved.
  • the first box is provided with a first flange extending toward the peripheral side of the first box
  • the second box is provided with a first flange extending toward the second circumferential side.
  • a second flange extends from the circumferential side of the box, and the second flange is correspondingly connected to the first flange.
  • first box and the second box through the arrangement of the first flange and the second flange, it is convenient for the first box and the second box to be closed correspondingly, and through the two correspondingly arranged flange structures, the first box and the second box can be closed.
  • the connection between the boxes has a certain contact area, which facilitates the installation of the connection structure and the seal, so that the first box and the second box can be firmly and tightly closed.
  • the gap between the fitting piece and the inner wall of the first box is filled with a sealant layer.
  • the gap between the fitting part and the first box body can be significantly reduced, and the sealing effect caused by the provision of the fitting part can be reduced.
  • the fitting part includes a receiving part and a connecting part, the top end of the connecting part is connected to the receiving part, and the receiving part clamps at least part of the second flange.
  • the connecting portion is connected to the inner wall of the first box.
  • the division of labor of each part of the fitting part can be improved, and the fitting part can be easily connected to the first box.
  • the first flange, the sealant layer and the connecting portion jointly clamp at least part of the seal.
  • the sealant layer can not only fill the gap between the first box and the mating part, but also can make the upper surface of the first flange, the upper surface of the sealant layer and the upper surface of the connection part constitute after the sealant layer is filled.
  • the same plane facilitates the laying of seals and improves the sealing performance of the box.
  • the receiving portion extends toward the inside of the first box.
  • connection position of the first box and the second box can be moved into the first box, reducing the volume ratio of the connection outside the box and improving sealing.
  • Box external structure by extending the receiving portion toward the inside of the first box, the connection position of the first box and the second box can be moved into the first box, reducing the volume ratio of the connection outside the box and improving sealing. Box external structure.
  • a bending portion is further provided between the receiving portion and the connecting portion, and the bending portion protrudes toward the inside of the first box, and the receiving portion is connected to the connecting portion.
  • the top ends of the bent portions are connected and extend toward the first flange.
  • the mechanical strength of the fitting part can be improved and the load-bearing capacity of the fitting part can be improved through the arrangement of the bending part.
  • the first box is rectangular, and the matching piece has a pair and is symmetrically arranged on both sides of the first box.
  • the width of the resulting box in one direction can be significantly reduced, making it easier for the battery to match the installation position.
  • first flange and the second flange are connected by bolts.
  • Adopting the above structure and the arrangement of the bolt structure can facilitate the alignment of the first box body and the second box body when the lids are closed.
  • a second aspect of the embodiment of the present application provides a battery, including the above-mentioned box for accommodating battery components.
  • a third aspect of the embodiment of the present application provides an electrical device, including the above-mentioned battery, for providing electrical energy.
  • the structure of the connection point between the first case and the second case can be fully utilized, so that the connection position of the first case and the second case can be at least partially moved. into the first box, thereby ensuring the connection area between the first box and the second box, while reducing the volume proportion of the connection outside the box, and improving the external structure of the sealed box.
  • Figure 1 is a schematic structural diagram of a vehicle provided by some embodiments of the present application.
  • Figure 2 is a schematic diagram of the exploded structure of an embodiment of the box in this application.
  • Figure 3 is a schematic cross-sectional structural diagram of an embodiment of the first flange and the second flange in this application.
  • FIG. 4 is a perspective view of the embodiment shown in FIG. 2 .
  • Figure 5 is a schematic top structural view of an embodiment of the first box in this application.
  • Figure 6 is a schematic cross-sectional structural diagram of another embodiment of the first flange and the second flange in this application.
  • FIG. 7 is a schematic top structural view of the first box in the embodiment shown in FIG. 1 .
  • the first box 11. The first opening; 12. The first flange; 121. The first connection surface; 2. The second box; 21. The second flange; 211. The second connection surface; 3. Seals; 4. Fitting parts; 41. Connection part; 42. Acceptance part; 421. Acceptance surface; 43. Bending part; 5. Sealant layer; 51. Sealant surface; 100. Battery; 200. Controller; 300, motor; 1000, vehicle.
  • an embodiment means that a particular feature, structure or characteristic described in connection with the embodiment may be included in at least one embodiment of the application.
  • the appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
  • the inventor of the present application has noticed that in existing batteries, in order to improve the sealing performance of the battery, the setting of widening the connection edge is often used.
  • a sealing pad is added at the buckle to ensure that the connection position is secure.
  • Sealing for example, the battery box includes a first box and a second box. At the joint between the first box and the second box, there is a flange structure protruding from the outside of the box. On both sides A gasket seal is set in the middle of the flange structure. When the flange structures on both sides are butt-jointed and pressed, they abut against the middle gasket, which can effectively improve the sealing of the joint.
  • the applicant found that since the box needs to be fastened by multiple parts, when installing the electrical components in the battery, it is usually avoided to fasten the multiple parts of the box.
  • the space inside the box is redundant at the gaps between multiple parts of the box to prevent the external environment from increasing the impact on the battery.
  • the inventor of the present application designed a box and battery after in-depth research.
  • the battery mentioned refers to a single physical module including one or more battery cells to provide higher voltage and capacity.
  • the battery mentioned in this application may include a battery module or a battery pack.
  • Batteries generally include a box for packaging one or more battery cells. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells.
  • Embodiments of the present application provide an electrical device that uses a battery as a power source.
  • the electrical device may be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric vehicle, a ship, a spacecraft, etc.
  • electric toys can include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, electric airplane toys, etc.
  • spacecraft can include airplanes, rockets, space shuttles, spaceships, etc.
  • an electric device 1000 according to an embodiment of the present application is used as an example.
  • FIG. 1 is a schematic structural diagram of a vehicle 1000 provided by some embodiments of the present application.
  • the vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.
  • the battery 100 is disposed inside the vehicle 1000 , and the battery 100 may be disposed at the bottom, head, or tail of the vehicle 1000 .
  • the battery 100 may be used to power the vehicle 1000 , for example, the battery 100 may serve as an operating power source for the vehicle 1000 .
  • the vehicle 1000 may also include a controller 200 and a motor 300 .
  • the controller 200 is used to control the battery 100 to provide power to the motor 300 , for example, for starting, navigating and driving the vehicle 1000 .
  • the battery 100 can not only be used as an operating power source for the vehicle 1000 , but also can be used as a driving power source for the vehicle 1000 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000 .
  • Figure 2 is an exploded structural diagram of an embodiment of the box in the present application
  • Figure 3 is a schematic diagram of the first flange 12 and the first flange 12 in the present application.
  • the embodiment of the present application provides a box, including a first box 1 , a second box 2 , a seal 3 and a fitting 4 .
  • the first box 1 has a first opening 11
  • the second box 2 is used to cover the first opening 11
  • the sealing member 3 is at least partially clamped between the first box 1 and the second box 2 and used for sealing.
  • the first opening 11, the fitting piece 4 is accommodated in the first box 1 and connected to the first box 1, and the fitting piece 4 and the second box 2 clamp at least a part of the sealing member 3.
  • the first box 1 can be cylindrical, rectangular, or polygonal, and has an opening at one end. In one embodiment of the present application, the first box 1 may be in a rectangular shape.
  • the second box 2 may be a cover covering the first opening 11 .
  • the second box 2 can be cylindrical, rectangular, or polygonal, with an opening provided at one end, and the opening fits the first opening 11 .
  • FIG. 4 which is a perspective view of the embodiment shown in FIG. 2
  • the second box 2 may be rectangular, and its bottom end is provided with an opening.
  • the fitting 4 may be a plate-like structure disposed at the first opening 11 , and the plate-like structure is parallel to the plane of the first opening 11 and extends into the first box 1 .
  • FIG. 5 is a schematic top structural view of an embodiment of the first box 1 in this application.
  • the fitting 4 is arranged around the first opening 11 .
  • the sealing member 3 may be a rubber sealing gasket.
  • the structure of the connection point between the first box 1 and the second box 2 can be fully utilized, so that the connection position of the first box 1 and the second box 2 can be at least partially moved to the first box 1 Therefore, while ensuring the connection area between the first box 1 and the second box 2, the volume ratio of the connection outside the box is reduced, and the external structure of the sealed box is improved.
  • the first box 1 is provided with a first flange 12 extending laterally away from the first box 1 along the circumference of the first box 1
  • the second box 2 is provided with a second flange 21 extending toward the peripheral side of the second box 2
  • the second flange 21 is connected to the first flange 12 and the fitting 4 correspondingly.
  • the first flange 12 extends from the first opening 11 toward the circumferential side of the box.
  • the first flange 12 has a first connecting surface 121 at the top end
  • the second flange 21 has a second connecting surface 211 at the bottom end.
  • the first connecting surface 121 can fit with the second connecting surface 211 .
  • the projections of the first flange 12 and the second flange 21 on a plane perpendicular to the thickness direction of the box at least partially coincide.
  • the sealing member 3 is at least partially disposed between the first connection surface 121 and the second connection surface 211 .
  • the arrangement of the first flange 12 and the second flange 21 facilitates the corresponding covering of the first box 1 and the second box 2, and through the two correspondingly arranged flange structures, the first box 1 and the second
  • the connection between the boxes 2 has a certain contact area, which facilitates the installation of the connection structure and the seal 3, so that the first box 1 and the second box 2 are firmly and tightly closed.
  • the gap between the fitting 4 and the inner wall of the first box 1 is filled with a sealant layer 5 .
  • the battery box in order to reduce the internal angular structure, adopts a rounded corner structure at the corners.
  • An obvious V-shaped gap is easily formed between the fitting part 4 and the inner wall of the first box 1.
  • the sealant layer 5 Used to fill this gap.
  • the gap between the fitting part 4 and the first box 1 can be significantly reduced, and the impact of the fitting part 4 on the sealing performance can be reduced.
  • the fitting 4 includes a receiving portion 42 and a connecting portion 41.
  • the top end of the connecting portion 41 is connected to the receiving portion 42, and the receiving portion 42 is connected to the second flange. 21 clamps at least part of the sealing member 3, and the connecting portion 41 is connected to the inner wall of the first box 1.
  • one end of the connecting portion 41 is connected to the receiving portion 42 , and the other end extends along the inner wall of the first box 1 at the installation position, which can significantly improve the sealing performance between the connecting portion 41 and the first box 1 .
  • the receiving part 42 and the connecting part 41 are integrally formed.
  • the connecting portion 41 and the first box body 1 may be connected through welding or gluing, or may be connected through other methods, which is not limited by the present application.
  • the receiving part 42 and the connecting part 41 Through the arrangement of the receiving part 42 and the connecting part 41, the division of labor of each part on the fitting part 4 can be perfected, and the fitting part 4 can be easily connected to the first box 1.
  • the first flange 12 , the sealant layer 5 and the connecting portion 41 jointly clamp at least part of the seal 3 .
  • the top end of the receiving portion 42 is the receiving surface 421
  • the top end of the sealant layer 5 is the sealant surface 51
  • the first connecting surface 121, the sealant surface 51 and the receiving surface 421 together form the same plane
  • the sealing member 3 clamps Between the second connection surface 211 and the first connection surface 121 , the sealant surface 51 and the receiving surface 421 .
  • the sum of the widths of the first connection surface 121 , the sealant surface 51 and the receiving surface 421 is equal to the width of the second connection surface 211 .
  • the sealant layer 5 can not only fill the gap between the first box 1 and the mating part 4, but also can make the upper surface of the first flange 12, the upper surface of the sealant layer 5 and the connecting part 41 after the sealant layer 5 is filled.
  • the upper surface forms the same plane, which facilitates the sealing member 3 to improve the sealing performance of the box.
  • the receiving portion 42 extends toward the inside of the first box 1 .
  • the receiving portion 42 and the connecting portion 41 can be formed by stamping or bending straight plates.
  • connection position of the first box 1 and the second box 2 can be moved into the first box 1, thereby reducing the volume proportion of the connection outside the box. Improve the external structure of the sealed box.
  • FIG. 6 is a schematic cross-sectional structural diagram of another embodiment of the first flange 12 and the second flange 21 of the present application.
  • a bending portion 43 is also provided between the receiving portion 42 and the connecting portion 41 .
  • the bending portion 43 protrudes toward the inside of the first box 1 .
  • the receiving portion 42 is connected to the top end of the bending portion 43 and faces the first flange 12 extend.
  • the bending portion 43 is integrally formed with the receiving portion 42 and the connecting portion 41 .
  • the top end of the receiving portion 42 , the top end of the first flange 12 and the top end of the sealant layer 5 are on the same plane.
  • the mechanical strength of the fitting 4 can be improved and the load-bearing capacity of the fitting 4 can be increased.
  • FIG. 7 is a schematic top structural view of the first box 1 in the embodiment shown in FIG. 1 .
  • the first box 1 is rectangular, and the matching parts 4 have a pair and are symmetrically arranged on both sides of the first box 1 .
  • the position of the matching piece 4 can be flexibly adjusted according to the size requirements of the battery installation position.
  • the width of the resulting box in one direction can be significantly reduced, making it easier for the battery to match the installation location.
  • first flange 12 and the second flange 21 are connected by bolts.
  • a plurality of through holes are provided on the first flange 12 and the second flange 21 for bolts to pass through and fix. Specifically, through holes are also provided at corresponding positions on the seal 3 for bolts to pass through. pass through.
  • the arrangement of the bolt structure can facilitate the alignment of the first box 1 and the second box 2 when they are closed.
  • An embodiment of the present application also provides a battery, including the above-mentioned box, and the box is used to accommodate components in the battery.
  • connection position is at least partially moved into the first box 1, thereby ensuring the connection area between the first box 1 and the second box 2, while reducing the volume proportion of the connection outside the box and improving the sealing of the box. external structure.

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

Abstract

本申请的实施方式提供了一种箱体、电池及用电装置，所述箱体包括第一箱体、第二箱体、密封件及配合件。所述第一箱体具有第一开口，所述第二箱体用于盖合于所述第一开口，所述密封件至少部分夹持于所述第一箱体和所述第二箱体之间并用于密封所述第一开口，所述配合件容纳于所述第一箱体内并连接于所述第一箱体，所述配合件与所述第二箱体夹持所述密封件的至少一部分。通过配合件的设置，能够充分利用第一箱体及第二箱体连接处的构造，使第一箱体及第二箱体的连接位置至少部分移动至第一箱体内，从而在保障第一箱体及第二箱体间的连接面积的同时，减少连接处在箱体外部的体积占比，改善密封箱体外部结构。

Description

箱体、电池及用电装置
相关申请的交叉引用
本申请要求享有于2022年3月15日提交的名称为“箱体、电池及用电装置”的中国专利申请202220560305.8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
本申请属于箱体设备技术领域，尤其涉及一种箱体、电池及用电装置。
背景技术
随着自然资源的消耗及环境的破坏日益加重，各领域中对可以储存能量并有效地利用储存能量的装置兴趣日益增长。电池单体一种新的可再生能量的系统，是常用的储存能量的设备。
在使用电池单体的电池设备技术领域中，为了保证使用安全性，通常在电池单体上下壳体的连接处采用密封结构处理，从而提高电池单体壳体的密闭性，保证安全性，但是现有密闭结构的体积占比较大，影响尺寸，不利于实际使用。因此，如何优化壳体的密闭结构，是电池设备技术中一个亟待解决的技术问题。
申请内容
本申请实施方式提供了一种箱体、电池及用电装置，能够改善现有箱体结构，保证密闭性，并改善密闭结构引起的箱体外部尺寸增大的问题。
本申请实施方式的第一方面，提供了一种箱体，包括第一箱体、第二箱体、密封件及配合件。所述第一箱体具有第一开口，所述第二箱体 用于盖合于所述第一开口，所述密封件至少部分夹持于所述第一箱体和所述第二箱体之间并用于密封所述第一开口，所述配合件容纳于所述第一箱体内并连接于所述第一箱体，所述配合件与所述第二箱体夹持所述密封件的至少一部分。
采用上述结构，通过配合件的设置，能够充分利用第一箱体及第二箱体连接处的构造，使第一箱体及第二箱体的连接位置至少部分移动至第一箱体内，从而在保障第一箱体及第二箱体间的连接面积的同时，减少连接处在箱体外部的体积占比，改善密封箱体外部结构。
在本申请的一些可选实施方式中，所述第一箱体上设置有向所述第一箱体周侧延伸的第一法兰，所述第二箱体上设置有向所述第二箱体周侧延伸的第二法兰，所述第二法兰与所述第一法兰对应连接。
采用上述结构，通过第一法兰及第二法兰的设置，便于第一箱体及第二箱体能够对应盖合，且通过两对应设置的法兰结构，使第一箱体及第二箱体的连接处，具有一定接触面积，便于设置连接结构及密封件设置，使第一箱体及第二箱体盖合稳固且密闭。
在本申请的一些可选实施方式中，所述配合件与所述第一箱体内壁间的间隙内填充有密封胶层。
采用上述结构，通过密封胶层的设置，能够显著减少配合件与第一箱体间的缝隙，降低设置配合件带来的密封性影响。
在本申请的一些可选实施方式中，所述配合件包括承接部及连接部，所述连接部的顶端与所述承接部相连接，所述承接部与第二法兰夹持至少部分所述密封件，所述连接部与所述第一箱体内壁相连接。
采用上述结构，通过承接部及连接部的设置，能够完善配合件上各部分的分工，便于将配合件与第一箱体相连接。
在本申请的一些可选实施方式中，所述第一法兰、所述密封胶层及所述连接部共同夹持至少部分所述密封件。
采用上述结构，密封胶层不仅能够填充第一箱体与所述配合件间的缝隙，还能够使密封胶层填充后，第一法兰上表面、密封胶层上表面及连接部上表面构成同一平面，便于密封件铺垫，提高箱体的密封性。
在本申请的一些可选实施方式中，所述承接部朝向所述第一箱体内部延伸。
采用上述结构，通过承接部朝向第一箱体内部延伸，能够使第一箱体及第二箱体的连接位置移动至第一箱体内，减少连接处在箱体外部的体积占比，改善密封箱体外部结构。
在本申请的一些可选实施方式中，所述承接部及所述连接部间还设置有弯折部，所述弯折部朝向所述第一箱体内部凸起，所述承接部与所述弯折部的顶端相连接，并朝向所述第一法兰延伸。
采用上述结构，通过弯折部的设置，能够改善配合件的机械强度，提高配合件的承载能力。
在本申请的一些可选实施方式中，所述第一箱体为矩形，所述配合件具有一对并对称设置于所述第一箱体的两侧。
采用上述结构，通过将配合件设置于箱体的对称两侧，能够显著降低所得箱体在一个方向上的宽度，便于电池与安装位置相配合。
在本申请的一些可选实施方式中，所述第一法兰及第二法兰间通过螺栓相连接。
采用上述结构，螺栓结构的设置，能够便于第一箱体及第二箱体盖合时相对齐。
本申请实施方式的第二方面，提供了一种电池，包括上述的箱体，用于容纳电池组件。
本申请实施方式的第三方面，提供了一种用电装置，包括上述的电池，用于提供电能。
本申请实施方式的箱体及电池中，通过配合件的设置，能够充分利用第一箱体及第二箱体连接处的构造，使第一箱体及第二箱体的连接位置至少部分移动至第一箱体内，从而在保障第一箱体及第二箱体间的连接面积的同时，减少连接处在箱体外部的体积占比，改善密封箱体外部结构。
附图说明
下面将参考附图来描述本申请示例性实施例的特征、优点和技术效 果。
图1为本申请一些实施例提供的车辆的结构示意图。
图2是本申请中箱体一实施方式的爆炸结构示意图。
图3是本申请中第一法兰、第二法兰处一实施方式的剖视结构示意图。
图4是图2所示实施方式的立体图。
图5是本申请中第一箱体一实施方式的俯视结构示意图。
图6是本申请中第一法兰、第二法兰处另一实施方式的剖视结构示意图。
图7是图1所示实施方式的第一箱体俯视结构示意图。
附图中：
1、第一箱体；11、第一开口；12、第一法兰；121、第一连接面；2、第二箱体；21、第二法兰；211、第二连接面；3、密封件；4、配合件；41、连接部；42、承接部；421、承接面；43、弯折部；5、密封胶层；51、密封胶面；100、电池；200、控制器；300、马达；1000、车辆。
在附图中，附图未必按照实际的比例绘制。
具体实施方式
下面结合附图和实施例对本申请的实施方式作进一步详细描述。以下实施例的详细描述和附图用于示例性地说明本申请的原理，但不能用来限制本申请的范围，即本申请不限于所描述的实施例。
在本申请的描述中，需要说明的是，除非另有说明，“多个”的含义是两个以上；术语“上”、“下”、“左”、“右”、“内”、“外”等指示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装置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”、“第三”等仅用于描述目的，而不能理解为指示或暗示相对重要性。“垂直”并不是严格意义上的垂直，而是在误差允许范围之内。“平行”并不是严格意义上的平行，而是在误差允许范围之内。
在本申请中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本申请所描述的实施例可以与其它实施例相结合。
下述描述中出现的方位词均为图中示出的方向，并不是对本申请的具体结构进行限定。在本申请的描述中，还需要说明的是，除非另有明确的规定和限定，术语“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。对于本领域的普通技术人员而言，可视具体情况理解上述术语在本申请中的具体含义。
目前，从市场发展前景及应用趋势来看，因为电池结构简单且便于重复利用，所以采用电池作为能源的装置日益增多。由于电池自身的特性，对密闭性的要求较高，以电动车为例，现有电动车的结构中，动力电池通常布置于整车的地板下方，工作时，受车底的外界影响很大，如出现强降雨时，电池可能浸泡于水中，易造成电池内部的电器元件损害，甚至引起安全问题。因此，为了降低外界因素对电池造成干扰，电池领域中对电池密封性提出了更高的要求。
本申请发明人注意到，现有电池中，为了提高电池密封性，多采用加宽连接边缘的设置，使电池的箱体各部分相配合时，在扣合处添加密封垫，保证连接位置的密闭性，例如电池的箱体包括第一箱体及第二箱体，在第一箱体及第二箱体对接处，设置有凸出于箱体外侧设置的法兰结构，在两侧的法兰结构中间，设置密封垫密封，两侧的法兰结构对接压合时，抵接在中间的密封垫上，能够有效提高对接处的密闭性。但是实际应用中，由于连接边缘本身为了安装连接用固定组件，如螺栓，其本身就具有一定宽度，在进一步被加宽后，连接边缘在箱体的外侧凸起较多，直接导致电池外部的尺寸增大，严重影响电池在用电装置内的安装。
为了缓解现有电池的箱体中所用密封结构的缺陷，申请人研究发现，由于箱体需要由多个部分扣合，在设置电池内的电器元件时，通常会 避让箱体上多个部分扣合的缝隙处，防止加大外部环境对电池内的影响，即箱体上多个部分扣合缝隙处的箱体内空间存在冗余，通过在该处设置密封结构，不仅能够充分利用箱体内空间冗余，还能够显著减少箱体外侧的凸起，降低电池外部尺寸，具有普适性。
基于以上考虑，为了解决现有电池密封结构的问题，本申请发明人经过深入研究，设计了一种箱体及电池。
本申请的实施例中，所提到的电池是指包括一个或多个电池单体以提供更高的电压和容量的单一的物理模块。例如，本申请中所提到的电池可以包括电池模块或电池包等。电池一般包括用于封装一个或多个电池单体的箱体。箱体可以避免液体或其他异物影响电池单体的充电或放电。
本申请实施例提供一种使用电池作为电源的用电装置，用电装置可以为但不限于手机、平板、笔记本电脑、电动玩具、电动工具、电瓶车、电动汽车、轮船、航天器等等。其中，电动玩具可以包括固定式或移动式的电动玩具，例如，游戏机、电动汽车玩具、电动轮船玩具和电动飞机玩具等等，航天器可以包括飞机、火箭、航天飞机和宇宙飞船等等。
以下实施例为了方便说明，以本申请一实施例的一种用电装置为车辆1000为例进行说明。
如图1所示，图1为本申请一些实施例提供的车辆1000的结构示意图。车辆1000可以为燃油汽车、燃气汽车或新能源汽车，新能源汽车可以是纯电动汽车、混合动力汽车或增程式汽车等。车辆1000的内部设置有电池100，电池100可以设置在车辆1000的底部或头部或尾部。电池100可以用于车辆1000的供电，例如，电池100可以作为车辆1000的操作电源。车辆1000还可以包括控制器200和马达300，控制器200用来控制电池100为马达300供电，例如，用于车辆1000的启动、导航和行驶时的工作用电需求。
在本申请一些实施例中，电池100不仅可以作为车辆1000的操作电源，还可以作为车辆1000的驱动电源，代替或部分地代替燃油或天然气为车辆1000提供驱动动力。
在本申请一些实施方式中，可选地，如图2及图3所示，图2是 本申请中箱体一实施方式的爆炸结构示意图，图3是本申请中第一法兰12、第二法兰21处一实施方式的剖视结构示意图。本申请的实施方式提供了一种箱体，包括第一箱体1、第二箱体2、密封件3及配合件4。第一箱体1具有第一开口11，第二箱体2用于盖合于第一开口11，密封件3至少部分夹持于第一箱体1和第二箱体2之间并用于密封第一开口11，配合件4容纳于第一箱体1内并连接于第一箱体1，配合件4与第二箱体2夹持密封件3的至少一部分。
不限地，第一箱体1可以为圆柱状、矩形状、多棱柱状，且其一端设置有开口。在本申请的一个实施例中，第一箱体1可以为矩形状。不限地，第二箱体2可以为覆于第一开口11处的盖板。不限地，第二箱体2可以为圆柱状、矩形状、多棱柱状，且其一端设置有开口，且其开口与第一开口11贴合。示例性地，参照图4，图4是图2所示实施方式的立体图，第二箱体2可以为矩形状，且其底端设置有开口。
不限地，配合件4可为设置于第一开口11处的板状结构，且该板状结构的平行与第一开口11平面，向第一箱体1内延伸。示例性地，参照图5，图5是本申请中第一箱体1一实施方式的俯视结构示意图，配合件4环绕第一开口11设置一周。具体地，密封件3可采用橡胶密封垫。
通过配合件4的设置，能够充分利用第一箱体1及第二箱体2连接处的构造，使第一箱体1及第二箱体2的连接位置至少部分移动至第一箱体1内，从而在保障第一箱体1及第二箱体2间的连接面积的同时，减少连接处在箱体外部的体积占比，改善密封箱体外部结构。
在本申请一些实施方式中，可选地，如图2及图3所示，第一箱体1设置有沿第一箱体1周侧向远离第一箱体1延伸的第一法兰12，第二箱体2上设置有朝向第二箱体2周侧延伸的第二法兰21，第二法兰21与第一法兰12及配合件4对应连接。
不限地，第一法兰12由第一开口11向箱体周侧延伸成型。不限地，第一法兰12顶端具有第一连接面121，第二法兰21底端具有第二连接面211，第一连接面121能够与第二连接面211相贴合。具体地，第一法兰12与第二法兰21在垂直于箱体厚度方向的平面上的投影至少部分重 合。具体地，密封件3至少部分设置于第一连接面121及第二连接面211之间。
通过第一法兰12及第二法兰21的设置，便于第一箱体1及第二箱体2对应盖合，且通过两对应设置的法兰结构，使第一箱体1及第二箱体2的连接处，具有一定接触面积，便于设置连接结构及密封件3设置，使第一箱体1及第二箱体2盖合稳固且密闭。
在本申请一些实施方式中，可选地，如图2及图3所示，配合件4与第一箱体1内壁间的间隙内填充有密封胶层5。
示例性地，参照图2，电池的箱体为了减少内部的棱角结构，在转角部分采用圆角结构，配合件4及第一箱体1内壁间易形成明显的V形缝隙，密封胶层5用于填充该缝隙。
通过密封胶层5的设置，能够显著减少配合件4与第一箱体1间的缝隙，降低设置配合件4带来的密封性影响。
在本申请一些实施方式中，可选地，如图3所示，配合件4包括承接部42及连接部41，连接部41的顶端与承接部42相连接，承接部42与第二法兰21夹持至少部分密封件3，连接部41与第一箱体1内壁相连接。
不限地，连接部41一端与承接部42相连接，另一端沿贴合设置位置的第一箱体1内壁延伸，能够显著提高连接部41与第一箱体1间的密封性。在本申请的一实施例中，承接部42及连接部41一体成型。在本申请的另一实施例中，连接部41与第一箱体1间可通过焊接、胶接中的一种相连接，也可以通过其他方式相连接，本申请对此并无限制。
通过承接部42及连接部41的设置，能够完善配合件4上各部分的分工，便于将配合件4与第一箱体1相连接。
在本申请一些实施方式中，可选地，如图3所示，第一法兰12、密封胶层5及连接部41共同夹持至少部分密封件3。
不限地，承接部42的顶端为承接面421，密封胶层5顶端为密封胶面51，第一连接面121、密封胶面51及承接面421共同构成同一平面，且密封件3夹持于第二连接面211及第一连接面121、密封胶面51及承接 面421之间。示例性地，第一连接面121、密封胶面51及承接面421的宽度之和等于第二连接面211宽度。
密封胶层5不仅能够填充第一箱体1与所述配合件4间的缝隙，还能够使密封胶层5填充后，第一法兰12上表面、密封胶层5上表面及连接部41上表面构成同一平面，便于密封件3提高箱体的密封性。
在本申请一些实施方式中，可选地，如图3所示，承接部42朝向第一箱体1内部延伸。
不限地，承接部42及连接部41可用过由直板材，冲压或弯折成型。
通过承接部42朝向第一箱体1内部延伸，能够使第一箱体1及第二箱体2的连接位置移动至第一箱体1内，减少连接处在箱体外部的体积占比，改善密封箱体外部结构。
在本申请一些实施方式中，可选地，如图6所示，图6是本申请中第一法兰12、第二法兰21处另一实施方式的剖视结构示意图。承接部42及连接部41间还设置有弯折部43，弯折部43朝向第一箱体1内部凸起，承接部42与弯折部43的顶端相连接，并朝向第一法兰12延伸。
不限地，弯折部43与承接部42及连接部41一体成型。承接部42与第一法兰12间存在间隙，密封胶层5可通过该间隙设置填充满弯折部43与第一箱体1间的腔室。具体地，承接部42与第一法兰12间的间隙，在密封胶层5填充后，承接部42顶端、第一法兰12顶端及密封胶层5顶端处于同一平面。
通过弯折部43的设置，能够改善配合件4的机械强度，提高配合件4的承载能力。
在本申请一些实施方式中，可选地，如图7所示，图7是图1所示实施方式的第一箱体1俯视结构示意图。第一箱体1为矩形，配合件4具有一对并对称设置于第一箱体1的两侧。
不限地，配合件4的设置位置，可根据电池安装位置的尺寸要求，进行灵活调整。
通过将配合件4设置于箱体的对称两侧，能够显著降低所得箱体 在一个方向上的宽度，便于电池与安装位置相配合。
在本申请一些实施方式中，可选地，如图2所示，第一法兰12及第二法兰21间通过螺栓相连接。
不限地，第一法兰12及第二法兰21上设置多个通孔，用于供螺栓穿过固定，具体地，密封件3上的对应位置也设置有通孔，用于供螺栓穿过。
螺栓结构的设置，能够便于第一箱体1及第二箱体2盖合时相对齐。
本申请实施方式还提供了一种电池，包括上述的箱体，箱体用于容纳电池内的组件。
本申请实施方式的箱体及电池中，通过配合件4的设置，能够充分利用第一箱体1及第二箱体2连接处的构造，使第一箱体1及第二箱体2的连接位置至少部分移动至第一箱体1内，从而在保障第一箱体1及第二箱体2间的连接面积的同时，减少连接处在箱体外部的体积占比，改善密封箱体外部结构。
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件，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 (11)

  1. 一种电池的箱体，包括：
    第一箱体，具有第一开口；
    第二箱体，用于盖合于所述第一开口；
    密封件，至少部分夹持于所述第一箱体和所述第二箱体之间并用于密封所述第一开口；
    配合件，容纳于所述第一箱体内并连接于所述第一箱体，所述配合件与所述第二箱体夹持所述密封件的至少一部分。
  2. 根据权利要求1所述的箱体，其中，所述第一箱体上设置有向所述第一箱体周侧延伸的第一法兰，所述第二箱体上设置有向所述第二箱体周侧延伸的第二法兰，所述第二法兰与所述第一法兰对应连接。
  3. 根据权利要求2所述的箱体，其中，所述配合件与所述第一箱体内壁间的间隙内填充有密封胶层。
  4. 根据权利要求3所述的箱体，其中，所述配合件包括承接部及连接部，所述连接部的顶端与所述承接部相连接，所述承接部与第二法兰夹持至少部分所述密封件，所述连接部与所述第一箱体内壁相连接。
  5. 根据权利要求4所述的箱体，其中，所述第一法兰、所述密封胶层及所述连接部共同夹持至少部分所述密封件。
  6. 根据权利要求4或5所述的箱体，其中，所述承接部朝向所述第一箱体内部延伸。
  7. 根据权利要求4-6任一项所述的箱体，其中，所述承接部及所述连接部间还设置有弯折部，所述弯折部朝向所述第一箱体内部凸起，所述承接部与所述弯折部的顶端相连接，并朝向所述第一法兰延伸。
  8. 根据权利要求4-7任一项所述的箱体，其中，所述第一箱体为矩形，所述配合件具有一对并对称设置于所述第一箱体的两侧。
  9. 根据权利要求2-8任一项所述的箱体，其中，所述第一法兰及第二法兰通过螺栓相连接。
  10. 一种电池，包括如权利要求1-9任一项所述的箱体。
  11. 一种用电装置，包括如权利要求10所述的电池，用于提供电能。
PCT/CN2023/071536 2022-03-15 2023-01-10 箱体、电池及用电装置 WO2023173918A1 (zh)

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