WO2023169177A1 - 一种电池箱体、电池以及用电装置 - Google Patents

一种电池箱体、电池以及用电装置 Download PDF

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Publication number
WO2023169177A1
WO2023169177A1 PCT/CN2023/076720 CN2023076720W WO2023169177A1 WO 2023169177 A1 WO2023169177 A1 WO 2023169177A1 CN 2023076720 W CN2023076720 W CN 2023076720W WO 2023169177 A1 WO2023169177 A1 WO 2023169177A1
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WO
WIPO (PCT)
Prior art keywords
battery
side plate
middle frame
battery module
plate
Prior art date
Application number
PCT/CN2023/076720
Other languages
English (en)
French (fr)
Inventor
陈贵泽
包聪
曾超
Original Assignee
宁德时代新能源科技股份有限公司
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Publication of WO2023169177A1 publication Critical patent/WO2023169177A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—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
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/258—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 relates to the field of battery technology, and in particular to a battery box, a battery and an electrical device.
  • the battery usually includes a battery module and a battery box, and the battery module is installed inside the battery box. Due to the complex structure of the battery module, it is often difficult to accurately enter the battery box during the installation process, resulting in low installation efficiency. In addition, improper operation during the installation process may even cause the battery module to collide with the battery box, thus affecting the performance of the battery module.
  • this application provides a battery box for placing a battery module, including:
  • a first end plate and a second end plate arranged oppositely;
  • the first middle frame is connected between the first end plate and the second end plate; the first end plate, the second end plate and the first middle frame together form a semi-accommodating space with one end open, and the semi-accommodating space is at The height of the battery module in the entry direction is less than the height of the battery module;
  • the second middle frame is spliced with the first middle frame along the entry direction of the battery module and closes the opening.
  • the depth of the half-accommodating space is shallow and will It is safer and more convenient when the battery module is placed in a semi-contained space.
  • the first middle frame includes a first side plate, a second side plate and a third side plate.
  • the first side plate is connected between the first end plate and the second end plate along the first direction.
  • the side plate and the third side plate are respectively formed at two opposite ends of the first side plate along a second direction that intersects the first direction, and are connected between the first end plate and the second end plate at the current end;
  • the heights of the second side plate and the third side plate are smaller than the height of the battery module.
  • the first side plate, the second side plate and the third side plate jointly enclose the first middle frame of the U-shaped structure, which can better limit the battery module to the first middle frame. inside to achieve stable installation of the battery module.
  • the first middle frame, the first end plate and the second end plate are integrally formed into the first box assembly.
  • the one-piece connection method can make the structure of the first box assembly more concise and stable, and there is no need to install additional connectors, which can avoid the connectors occupying installation space inside the first box assembly. , thereby increasing the energy density of the battery.
  • the second middle frame includes a fourth side plate, a fifth side plate and a sixth side plate.
  • the fourth side plate is connected between the first end plate and the second end plate along the first direction.
  • the fifth side plate The side plate and the sixth side plate are respectively formed at two opposite ends of the fourth side plate along the second direction, and are connected between the first end plate and the second end plate at the current end;
  • the fifth side panel is spliced to the second side panel
  • the sixth side panel is spliced to the third side panel.
  • the fourth side plate, the fifth side plate and the sixth side plate jointly enclose the second middle frame of the U-shaped structure, which can be cooperatively connected with the first middle frame to jointly control the battery module.
  • the group is sealed and covered.
  • the first middle frame, the first end plate and the second end plate are integrally formed into the first box assembly, and the fourth side plate, the fifth side plate and the sixth side plate are integrally formed into the second box assembly.
  • the first box assembly and the second box assembly are jointly constructed to form a battery box.
  • the integrated connection method can make the structure of the second middle frame simpler and reduce the use of connectors, thereby reducing the installation space required for the connectors inside the battery box.
  • a first fixing member is provided on one of the first middle frame and the second middle frame, and a second fixing member that cooperates with the first fixing member is provided on the other, and the second middle frame is provided with the first fixing member.
  • the fixing part and the second fixing part are spliced with the first middle frame along the entry direction of the battery module.
  • the first middle frame and the second middle frame can be quickly spliced, and the assembly efficiency is improved.
  • the first fixing member is a buckle
  • the second fixing member is a slot that is engaged with the buckle through snap-fitting.
  • the structure of the buckle and the slot is relatively simple, which can further reduce the installation space occupied inside the battery box after connection.
  • the present application provides a battery, including a battery box as described above and a battery module accommodated in the battery box.
  • the battery module includes a battery cell and a wiring harness isolation plate and a busbar respectively connected to opposite ends of the battery cell.
  • One end of the battery cell is connected to the wiring harness isolation plate and one end is connected to the busbar and the first end respectively.
  • the plate is connected to the second end plate.
  • the present application provides an electrical device, including an electrical main body and a battery as described above.
  • the above-mentioned battery box, battery and electrical device are collectively enclosed by the first end plate, the second end plate and the first middle frame to form a semi-accommodating space with one end open, and the semi-accommodating space is opened when the battery module enters it.
  • the height in the entry direction is less than the height of the battery module in this direction, that is, the half-containing space is lower than the battery module. Therefore, when the battery module is placed in the half-containing space, it is less likely to fall and cause the battery to The module is damaged. After the battery module is safely placed in the semi-containing space, reconnect the The second middle frame is spliced with the first middle frame to close the semi-accommodating space, thereby covering the battery module.
  • Figure 1 is a schematic diagram of the overall structure of a battery box according to one or more embodiments
  • Figure 2 is a schematic structural diagram of a battery according to one or more embodiments
  • Figure 3 is a schematic structural diagram of the first box assembly in the battery box shown in Figure 1;
  • Figure 4 is a schematic structural diagram of the second middle frame in the battery box shown in Figure 1;
  • Figure 5 is a schematic structural diagram of a battery module according to one or more embodiments.
  • an embodiment means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present 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. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.
  • multiple refers to more than two (including two).
  • multiple groups refers to two or more groups (including two groups), and “multiple pieces” refers to It is more than two pieces (including two pieces).
  • Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but are also widely used in electric vehicles such as electric bicycles, electric motorcycles and electric cars, as well as in many fields such as military equipment and aerospace. . As the application fields of power batteries continue to expand, their market demand is also constantly expanding.
  • batteries As batteries become more and more widely used, people's requirements for batteries are getting higher and higher. Therefore, batteries need to have greater energy density and smaller size. Under this premise, the storage space of the battery box often fits perfectly with the battery module, without any unnecessary gaps. This structure can also prevent the battery module from shaking during loading or transportation, thereby ensuring that the battery module is not damaged.
  • the battery module is prone to collide with the battery box, thus affecting the performance of the battery module.
  • the battery module is installed into the battery box from top to bottom along the height direction.
  • the battery module is prone to falling when it is installed into the battery box from top to bottom, resulting in damage to the battery module.
  • a splicable battery box can be designed by improving the structure of the middle frame of the battery box, so that the battery module can be inserted into a shallower depth, thereby ensuring that the battery module can be inserted stably, and thus through The battery box is sealed by splicing.
  • the assembly efficiency of the battery can be improved, and the safety performance of the battery module can be ensured.
  • one or more embodiments of the present application provide a battery box 100 for placing a battery module 200, including a first end plate 10, a second end plate 20, a first center Frame 30 and the second middle frame 40.
  • the first end plate 10 and the second end plate 20 are arranged oppositely.
  • the first middle frame 30 is connected between the first end plate 10 and the second end plate 20 .
  • the first end plate 10 , the second end plate 20 and the first middle frame 30 together form a semi-accommodating space 50 with one end open.
  • the height of the half-accommodating space 50 in the entry direction a of the battery module 200 is smaller than the height of the battery module 200 .
  • the second middle frame 40 is spliced with the first middle frame 30 along the entry direction a of the battery module 200 and closes the opening.
  • the first end plate 10 is the base of the battery box 100
  • the second end plate 20 is the upper cover of the battery box 100
  • the first middle frame 30 is connected between the base and the upper cover, and is connected with The base and the upper cover together form a semi-accommodating space 50 with one end open.
  • the entry direction a of the battery module 200 is horizontal, that is, the opening direction of the half-accommodating space 50 is the horizontal direction, and the battery module 200 enters the half-accommodating space 50 through the opening along the horizontal direction.
  • the height of the cylindrical battery in the horizontal direction is usually smaller than the height in the vertical direction. Therefore, when the battery module 200 enters the semi-containing space 50 in the horizontal direction, the depth of the semi-containing space 50 is shallower and more It is convenient to put the battery module 200 in.
  • the battery module 200 can have a certain height.
  • the high holding position facilitates placing the battery module 200 stably into the semi-accommodating space 50 .
  • the second middle frame 40 and the first middle frame 30 are spliced together to form a complete middle frame structure and achieve sealed installation of the battery module 200 .
  • the process of the battery module 200 entering the battery box 100 can be made more convenient and stable, ensuring safety and reliability during the installation process of the battery module 200 .
  • the first middle frame 30 includes a first side plate 31 , a second side plate 32 and a third side plate 33 .
  • the first side plate 31 is connected to the first end along the first direction b.
  • the second side plate 32 and the third side plate 33 are respectively formed at opposite ends of the first side plate 31 along the second direction c that intersects the first direction b, and are connected to Between the first end plate 10 and the second end plate 20 at the current end.
  • the heights of the second side plate 32 and the third side plate 33 are smaller than the height of the battery module 200 .
  • the first direction b is a vertical direction
  • the second direction c is a horizontal direction perpendicular to the vertical direction.
  • the first side plate 31 is connected between the base and the upper cover along the vertical direction.
  • the second side plate 32 and the third side plate 33 are connected to the opposite ends of the first side plate 31 along the horizontal direction, and are connected between the base and the upper cover. between the lids. That is, the first middle frame 30 is formed by the first side plate 31 , the second side plate 32 and the third side plate 33 to form a “U”-shaped structure, and is connected between the base and the upper cover.
  • the height of the second side plate 32 and the third side plate 33 in the entry direction a of the battery module 200 is the height of the half-accommodation space 50 .
  • the height of the second side plate 32 and the third side plate 33 in the entry direction a of the battery module 200 is set to half of the height of the battery module 200 in this direction. On the one hand, it can ensure that the battery module 200 is placed On the other hand, it also makes the battery module 200 enter the semi-containing space 50 more smoothly.
  • the first middle frame 30 , the first end plate 10 and the second end plate 20 are integrally formed into the first box assembly.
  • the one-piece connection method can make the overall structure of the first box assembly more stable.
  • the space required by the connectors can be reduced, thereby making the space inside the battery box 100 more efficient and improving the energy density of the battery 1000 .
  • the second middle frame 40 includes a fourth side plate 41 , a fifth side plate 42 and a sixth side plate 43 .
  • the fourth side plate 41 is connected between the first end plate 10 and the second end plate 20 along the first direction b
  • the fifth side plate 42 and the sixth side plate 43 are respectively formed on the fourth side along the second direction c.
  • the opposite ends of the plate 41 are connected between the first end plate 10 and the second end plate 20 at the current end.
  • the fifth side plate 42 is spliced to the second side plate 32
  • the sixth side plate 43 is spliced to the third side plate 33 .
  • the second middle frame 40 is structurally complementary to the first middle frame 30.
  • the second middle frame 40 consists of the fourth side plate 41, the fifth side plate 42 and the sixth side plate 43 to form another "U"-shaped structure, and
  • the second middle frame 40 is connected between the base and the upper cover with openings opposite to the first middle frame 30 .
  • an integral accommodation space is formed, and the battery module 200 is sealed within it.
  • the splicing method can quickly realize the sealed connection between the second middle frame 40 and the first middle frame 30, the base and the upper cover, making the assembly process of the battery 1000 more convenient and faster.
  • the fourth side plate 41 , the fifth side plate 42 and the sixth side plate 43 are integrally formed into a second box assembly.
  • the first box assembly and the second box assembly are jointly constructed to form the battery box 100 .
  • the fourth side plate 41 , the fifth side plate 42 and the sixth side plate 43 are made in an integral manner. And the integrally formed second box assembly and the first box assembly are spliced together to form an integral battery box 100 .
  • a first fixing part 44 is provided on one of the first middle frame 30 and the second middle frame 40
  • a second fixing part 34 mating with the first fixing part 44 is provided on the other.
  • the frame 40 is spliced to the first middle frame 30 along the entry direction a of the battery module 200 through the first fixing part 44 and the second fixing part 34 .
  • the second fixing member 34 is provided on the first middle frame 30
  • the first fixing member 44 is provided on the second middle frame 40
  • the second fixing part 34 is disposed on the second side plate 32 and the third side plate 33
  • the first fixing part 44 is disposed on the fifth side plate 42 and the sixth side plate 43
  • the second fixing members 34 are cooperatively connected to each other, so that the first middle frame 30 and the second middle frame 40 are connected to each other.
  • the first middle frame 30 and the second middle frame 40 can be quickly spliced.
  • the first fixing part 44 is a buckle
  • the second fixing part 34 is a slot that engages with the buckle through snap-fitting.
  • the buckles and the slots are engaged with each other, thereby realizing quick splicing of the first middle frame 30 and the second middle frame 40 .
  • the snap-on fit between the buckle and the card slot can further save space.
  • the first fixing part 44 and the second fixing part 34 may also be connected in other ways, such as bolted connection, which will not be described again here.
  • the present application provides a battery 1000, including the battery box 100 as described above and the battery module 200 accommodated in the battery box 100.
  • the battery module 200 includes a battery cell 201 and a wire harness isolation plate 202 and a bus bar 203 respectively connected to opposite ends of the battery cell 201 .
  • one end of the battery cell 201 is connected to the wire harness isolation plate 202 and one end is connected to the bus bar 203. They are connected to the first end plate 10 and the second end plate 20 respectively.
  • the wire harness isolation plate 202 and the bus bar 203 are respectively disposed on the bottom and top of the battery cell 201, and the bus bar 203 and the poles of the battery cell 201 are welded. Further, the connected battery module 200 is placed into the semi-containing space 50 in the horizontal direction, so that the wire harness isolation plate 202 is connected to the base, and the busbar 203 is connected to the upper cover, thereby realizing the battery module 200 in the semi-containing space 50 . Stable installation within 50 meters of space.
  • this application provides an electrical device, which includes an electrical main body and the battery 1000 as described above.
  • the wire harness isolation plate 202 and the bus bar 203 are respectively placed on the bottom and top of the battery cell 201 to form the battery module 200 .
  • the card slots are snap-fitted to realize the splicing of the first middle frame 30 and the second middle frame 40 . Therefore, the second middle frame 40 closes the opening, and together with the first middle frame 30 , the base and the upper cover, forms a complete battery box 100 .
  • the battery box 100, battery 1000 and electrical device in the above embodiment have at least the following advantages:
  • the height of the semi-accommodating space 50 in the entry direction a of the battery module 200 is smaller than the height of the battery module 200. This makes the process of placing the battery module 200 into the semi-accommodating space 50 more stable, safe and effective. Avoid damaging the battery module 200 during assembly;
  • the first middle frame 30, the first end plate 10 and the second end plate 20 are integrally formed to form the first box assembly, which makes the structure of the first box assembly simpler and can reduce the number of connectors in the battery box. 100 internal occupied space to increase the energy density of the battery 1000;
  • the first middle frame 30 and the second middle frame 40 are spliced by snap-fitting, which has a simple structure and is easy to operate, and the snaps and slots occupy less space, which is beneficial to saving space.
  • the present application provides a battery box 100, which includes a base and an upper cover arranged oppositely, a first middle frame 30 is connected between the base and the upper cover, and the first middle frame 30 is connected between the base and the upper cover.
  • the frame 30, the base and the upper cover together form a semi-accommodating space 50 with one end open.
  • the height of the half-accommodating space 50 in the entry direction a of the battery module 200 is half of the height of the battery module 200 in this direction.
  • the battery module 200 when the battery module 200 is placed in the half-accommodating space 50, the battery module There is a half-height holding position on the battery module 200 to facilitate the battery module 200 to enter the semi-accommodating space 50 stably.
  • the battery module 200 since the height of the semi-accommodating space 50 is half of the height of the battery module 200 , the battery module 200 is less likely to fall when entering the semi-accommodating space 50 , thereby ensuring the safety performance of the battery module 200 .
  • the second middle frame 40 is engaged with the slot on the first middle frame 30 through buckles to realize the first middle frame. 30 and the second middle frame 40 are spliced together to form a complete accommodation space, and the battery module 200 is sealed and arranged in the accommodation space.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请涉及一种电池箱体、电池以及用电装置，由第一端板(10)、第二端板(20)以及第一中框(30)共同围合形成一端开口的半容置空间(50)，并且半容置空间(50)在电池模组(200)进入其中的进入方向(a)上的高度小于电池模组(200)在此方向上的高度，即半容置空间(50)低于电池模组(200)，由此，电池模组(200)放入半容置空间(50)内时，不容易发生跌落而导致电池模组(200)损坏，当电池模组(200)安全放入半容置空间(50)内之后，再通过第二中框(40)与第一中框(30)拼接，实现半容置空间(50)的封闭，从而对电池模组(200)进行包覆。

Description

一种电池箱体、电池以及用电装置
交叉引用
本申请引用于2022年03月10日递交的名称为“一种电池箱体、电池以及用电装置”的第202220531184.4号中国专利申请，其通过引用被全部并入本申请。
技术领域
本申请涉及电池技术领域，特别是涉及一种电池箱体、电池以及用电装置。
背景技术
随着新能源技术的发展，电池在日常生活中的应用越来越广泛。电池通常包括电池模组与电池箱体，电池模组安装于电池箱体内部。由于电池模组结构复杂，在安装过程中往往难以准确进入电池箱体，从而导致安装效率低下。此外，若安装过程中操作不当，甚至会导致电池模组与电池箱体产生碰撞，从而影响电池模组的使用性能。
发明内容
基于此，有必要针对目前的电池模组难以进入电池箱体的问题，提供一种电池箱体、电池以及用电装置。
第一方面，本申请提供了一种电池箱体，用于放置电池模组，包括：
相对设置的第一端板与第二端板；
第一中框，连接于第一端板与第二端板之间；第一端板、第二端板以及第一中框共同围合形成一端开口的半容置空间，半容置空间在电池模组的进入方向上的高度小于电池模组的高度；以及
第二中框，沿电池模组的进入方向与第一中框拼接，并封闭开口。
本申请实施例的技术方案中，由于半容置空间在电池模组的进入方向上的高度小于电池模组的高度，因此，对于电池模组而言，半容置空间的深度较浅，将电池模组放入半容置空间内时更加安全方便。
在一些实施例中，第一中框包括第一侧板、第二侧板以及第三侧板，第一侧板沿第一方向连接于第一端板与第二端板之间，第二侧板及第三侧板沿与第一方向相交的第二方向分别形成于第一侧板相对的两端，并连接于当前所在端的第一端板与第二端板之间；
在电池模组的进入方向上，第二侧板及第三侧板的高度小于电池模组的高度。
本申请实施例的技术方案中，第一侧板、第二侧板以及第三侧板共同围合形成U型结构的第一中框，能够将电池模组更好的限位于第一中框内，以实现电池模组的稳定安装。
在一些实施例中，第一中框、第一端板以及第二端板一体成型为第一箱体总成。
本申请实施例的技术方案中，一体成型的连接方式能够使第一箱体总成的结构更加简洁稳定，且无需另外设置连接件，可避免连接件在第一箱体总成内部占用安装空间，从而提高电池的能量密度。
在一些实施例中，第二中框包括第四侧板、第五侧板以及第六侧板，第四侧板沿第一方向连接于第一端板与第二端板之间，第五侧板及第六侧板沿第二方向分别形成于第四侧板相对的两端，并连接于当前所在端的第一端板与第二端板之间；
其中，第五侧板与第二侧板拼接，第六侧板与第三侧板拼接。
本申请实施例的技术方案中，第四侧板、第五侧板以及第六侧板共同围合形成U型结构的第二中框，能够与第一中框相互配合连接，共同对电池模组进行密封包覆。
在一些实施例中，第一中框、第一端板以及第二端板一体成型为第一箱体总成，第四侧板、第五侧板以及第六侧板一体成型为第二箱体总成；第一箱体总成与第二箱体总成共同构造形成电池箱体。
本申请实施例的技术方案中，一体成型的连接方式能够使第二中框的结构更加简洁，减少连接件的使用，从而减少连接件在电池箱体内部所需占用的安装空间。
在一些实施例中，第一中框与第二中框其中一者上设置第一固定件，另一者上设置与第一固定件配合的第二固定件，第二中框借由第一固定件与第二固定件沿电池模组的进入方向与第一中框拼接。
本申请实施例的技术方案中，通过第一固定件与第二固定件的相互配合，能够实现第一中框与第二中框的快速拼接，提高组装效率。
在一些实施例中，第一固定件为卡扣，第二固定件为与卡扣通过卡接配合的卡槽。
本申请实施例的技术方案中，卡扣与卡槽的结构较为简单，能够进一步地减少连接之后在电池箱体内部所占用的安装空间。
第二方面，本申请提供一种电池，包括如上所述的电池箱体及容置于电池箱体内的电池模组。
在一些实施例中，电池模组包括电池单体及分别连接于电池单体相对两端的线束隔离板及汇流排，电池单体连接线束隔离板的一端及连接汇流排的一端分别与第一端板及第二端板相连。
第三方面，本申请提供一种用电装置，包括用电主体及如上所述的电池。
上述的电池箱体、电池以及用电装置，由第一端板、第二端板以及第一中框共同围合形成一端开口的半容置空间，并且半容置空间在电池模组进入其中的进入方向上的高度小于电池模组在此方向上的高度，即半容置空间低于电池模组，由此，电池模组放入半容置空间内时，不容易发生跌落而导致电池模组损坏，当电池模组安全放入半容置空间内之后，再通 过第二中框与第一中框拼接，实现半容置空间的封闭，从而对电池模组进行包覆。
上述说明仅是本申请技术方案的概述，为了能够更清楚了解本申请的技术手段，而可依照说明书的内容予以实施，并且为了让本申请的上述和其它目的、特征和优点能够更明显易懂，以下特举本申请的具体实施方式。
附图说明
通过阅读对下文实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出实施方式的目的，而并不认为是对本申请的限制。而且在全部附图中，用相同的附图标号表示相同的部件。在附图中：
图1为根据一个或多个实施例中电池箱体的整体结构示意图；
图2为根据一个或多个实施例中电池的结构示意图；
图3为图1所示的电池箱体中第一箱体总成的结构示意图；
图4为图1所示的电池箱体中第二中框的结构示意图；
图5为根据一个或多个实施例中电池模组的结构示意图。
图中：1000、电池；100、电池箱体；200、电池模组；201、电池单体；202、线束隔离板；203、汇流排；10、第一端板；20、第二端板；30、第一中框；40、第二中框；50、半容置空间；31、第一侧板；32、第二侧板；33、第三侧板；34、第二固定件；41、第四侧板；42、第五侧板；43、第六侧板；44、第一固定件；a、进入方向；b、第一方向；c、第二方向。
具体实施方式
下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。在本申请实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
在本文中提及“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，本文所描述的实施例可以与其它实施例相结合。
在本申请实施例的描述中，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。
在本申请实施例的描述中，术语“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
在本申请实施例的描述中，技术术语“中心”“纵向”“横向”“长度”“宽度”“厚度”“上”“下”“前”“后”“左”“右”“竖直”“水平”“顶”“底”“内”“外”“顺时针”“逆时针”“轴向”“径向”“周向”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，仅是为了便于描述本申请实施例和简化描述，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实施例的限制。
在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“安装”“相连”“连接”“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；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或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
目前，从市场形势的发展来看，动力电池的应用越加广泛。动力电池不仅被应用于水力、火力、风力和太阳能电站等储能电源系统，而且还被广泛应用于电动自行车、电动摩托车、电动汽车等电动交通工具，以及军事装备和航空航天等多个领域。随着动力电池应用领域的不断扩大，其市场的需求量也在不断地扩增。
动力电池生产完成后需要进行组装，即将生产完成的多个电池单体之间串联或并联或混联在一起，以形成电池模组。然后将电池模组容纳于电池箱体中，形成电池的整体结构。
随着电池的应用越来越广泛，人们对电池的要求也越来越高，因此，电池需要具有更大的能量密度以及更小的体积。在这种前提下，电池箱体的容纳空间往往与电池模组刚好配合，不具备多余的间隙。这种结构也能够避免电池在装载或运输过程中，电池模组在电池箱体内位置稳定，不发生晃动，从而确保电池模组不被损坏。
然而，由于电池模组与电池箱体的容纳空间配合较为紧密，将电池模组装入电池箱体的过程中，电池模组容易与电池箱体发生磕碰，从而影响电池模组的使用性能。
此外，由于现有的电池箱体多为上端开口，即电池模组沿高度方向从上往下的装入电池箱体中。在此过程中，由于电池箱体高度方向上的深度较大，电池模组从上往下装入电池箱体时容易发生跌落，从而导致电池模组受到损坏。
基于以上问题，可以通过对电池箱体中框结构的改进，设计一种可拼接的电池箱体，使电池模组装入时的深度较浅，从而确保电池模组能够稳定放入，进而通过拼接的方式实现电池箱体的密封。由此，可提高电池的组装效率，且能够确保电池模组的安全性能。
参阅图1及图2，本申请的一个或多个实施例中提供了一种用于放置电池模组200的电池箱体100，包括第一端板10、第二端板20、第一中框30以及第二中框40。其中，第一端板10与第二端板20相对设置。第一中框30连接于第一端板10与第二端板20之间，第一端板10、第二端板20以及第一中框30共同围合形成一端开口的半容置空间50，半容置空间50在电池模组200的进入方向a上的高度小于电池模组200的高度。第二中框40沿电池模组200的进入方向a与第一中框30拼接，并封闭开口。
具体到本实施例中，第一端板10为电池箱体100的底座，第二端板20为电池箱体100的上盖，第一中框30连接于底座与上盖之间，且与底座及上盖共同围合形成一端开口的半容置空间50。
需要说明的是，电池模组200的进入方向a为水平放入，即半容置空间50的开口方向为水平方向，电池模组200沿水平方向经开口进入半容置空间50内。以圆柱电池为例，圆柱电池水平方向上的高度通常小于竖直方向上的高度，因此，电池模组200沿水平方向进入半容置空间50时，半容置空间50的深度较浅，更便于电池模组200的放入。
此外，由于半容置空间50在水平方向上的高度小于电池模组200在此方向上的高度，因此，将电池模组200放入半容置空间50时，电池模组200上可具有一定高度的拿持位，以便于将电池模组200稳定放入半容置空间50中。
待电池模组200放入半容置空间50内之后，将第二中框40与第一中框30拼接，从而形成完整的中框结构，实现电池模组200的密封安装。
通过上述结构，能够使电池模组200进入电池箱体100的过程更加方便且稳定，确保电池模组200安装过程中的安全可靠。
请结合图3，在一些实施例中，第一中框30包括第一侧板31、第二侧板32以及第三侧板33，第一侧板31沿第一方向b连接于第一端板10与第二端板20之间，第二侧板32及第三侧板33沿与第一方向b相交的第二方向c分别形成于第一侧板31相对的两端，并连接于当前所在端的第一端板10与第二端板20之间。在电池模组200的进入方向a上，第二侧板32及第三侧板33的高度小于电池模组200的高度。
具体地，第一方向b为竖直方向，第二方向c为与竖直方向垂直的水平方向。第一侧板31沿竖直方向连接于底座与上盖之间，第二侧板32及第三侧板33沿水平方向分别连接于第一侧板31的相对两端，并且连接于底座与上盖之间。即第一中框30由第一侧板31、第二侧板32以及第三侧板33共同形成一“U”型结构，且连接于底座与上盖之间。
由此，第二侧板32与第三侧板33在电池模组200的进入方向a上的高度即为半容置空间50的高度。具体地，将第二侧板32及第三侧板33在电池模组200的进入方向a上的高度设置为电池模组200在此方向上高度的一半，一方面能够确保电池模组200放入半容置空间50内的稳定限位，另一方面也使电池模组200进入半容置空间50时更加顺利。
在一些实施例中，第一中框30、第一端板10以及第二端板20一体成型为第一箱体总成。相比于现有技术中采用螺栓等连接件进行连接组合的方式，采用一体成型的连接方式能够使第一箱体总成的整体结构更加稳定。此外，由于无需另外设置连接件，能够减少连接件所需占用的空间，从而能够使电池箱体100内部的空间使用率更高，提高电池1000的能量密度。
请参看图4，在一些实施例中，第二中框40包括第四侧板41、第五侧板42以及第六侧板43。其中，第四侧板41沿第一方向b连接于第一端板10与第二端板20之间，第五侧板42及第六侧板43沿第二方向c分别形成于第四侧板41相对的两端，并连接于当前所在端的第一端板10与第二端板20之间。此外，第五侧板42与第二侧板32拼接，第六侧板43与第三侧板33拼接。
具体地，第二中框40与第一中框30结构互补，第二中框40由第四侧板41、第五侧板42以及第六侧板43组成另一“U”型结构，并且第二中框40与第一中框30开口相对的连接于底座与上盖之间。由此，形成整体的容置空间，并将电池模组200密封于其内。
采用拼接的方式能够快速实现第二中框40与第一中框30、底座以及上盖之间的密封连接，使电池1000的组装过程更加方便快捷。
进一步地，第四侧板41、第五侧板42以及第六侧板43一体成型为第二箱体总成，第一箱体总成与第二箱体总成共同构造形成电池箱体100。
为了使第二中框40的结构更加简洁，第四侧板41、第五侧板42以及第六侧板43采用一体成型的方式制成。并且将一体成型的第二箱体总成与第一箱体总成进行拼接，从而共同形成整体的电池箱体100。
在一些实施例中，第一中框30与第二中框40其中一者上设置第一固定件44，另一者上设置与第一固定件44配合的第二固定件34，第二中框40借由第一固定件44与第二固定件34沿电池模组200的进入方向a与第一中框30拼接。
具体地，第一中框30上设置第二固定件34，第二中框40上设置第一固定件44。进一步地，第二固定件34设置在第二侧板32与第三侧板33上，第一固定件44设置在第五侧板42与第六侧板43上，且与第二固定件34相配合。由此，当第一中框30与第二中框40拼接时，第二侧板32及第三侧板33上的第二固定件34与第五侧板42及第六侧板43上的第二固定件34相互配合连接，以使第一中框30与第二中框40相互连接。由此，可实现第一中框30与第二中框40的快速拼接。
在一些实施例中，第一固定件44为卡扣，第二固定件34为与卡扣通过卡接配合的卡槽。卡扣与卡槽相互卡接，从而实现第一中框30与第二中框40的快速拼接。采用卡扣与卡槽的卡接配合，能够进一步地节省空间。可以理解地，第一固定件44与第二固定件34也可以采用其他连接方式，例如螺栓连接等，在此不作赘述。
请再次参看图2，基于与上述电池箱体100相同的构思，本申请提供了一种电池1000，包括如上所述的电池箱体100及容置于电池箱体100内的电池模组200。
请参看图5，在一些实施例中，电池模组200包括电池单体201及分别连接于电池单体201相对两端的线束隔离板202及汇流排203。其中，电池单体201连接线束隔离板202的一端及连接汇流排203的一端分别与第一端板10及第二端板20相连。
具体地，线束隔离板202与汇流排203分别设置于电池单体201的底部及顶部，并将汇流排203与电池单体201的极柱进行焊接。进一步地，将连接后的电池模组200沿水平方向放入半容置空间50内，使得线束隔离板202与底座相连，汇流排203与上盖相连，从而实现电池模组200在半容置空间50内的稳定安装。
基于与上述电池1000相同的构思，本申请提供了一种用电装置，包括用电主体及如上所述的电池1000。
本申请具体使用时，首先将线束隔离板202及汇流排203分别设置于电池单体201的底部与顶部，形成电池模组200。将连接完成后的电池模组200沿水平方向经由开口放入半容置空间50内，待电池模组200放置稳定后，将第二中框40上的卡扣与第一中框30上的卡槽进行卡接配合，以实现第一中框30与第二中框40的拼接。由此，第二中框40对开口进行封闭，并且与第一中框30、底座以及上盖共同形成完整的电池箱体100。
上述实施例中的电池箱体100、电池1000以及用电装置，至少具有以下优点：
1)半容置空间50在电池模组200进入方向a上的高度小于电池模组200的高度，由此，使得电池模组200放入半容置空间50中的过程更加稳定安全，能够有效避免组装过程中损坏电池模组200；
2)第一中框30、第一端板10以及第二端板20通过一体成型形成第一箱体总成，使得第一箱体总成的结构更加简洁，能够减少连接件在电池箱体100内部的占用空间，提高电池1000的能量密度；
3)第一中框30与第二中框40通过卡接的方式进行拼接，结构简单，便于操作，并且卡扣与卡槽的占用空间更小，有利于节省空间。
根据本申请的一些实施例，参见图1，本申请提供了一种电池箱体100，包括相对设置的底座与上盖，第一中框30连接于底座与上盖之间，且第一中框30、底座以及上盖共同围合形成一端开口的半容置空间50。半容置空间50在电池模组200的进入方向a上的高度为电池模组200在此方向上高度的一半，由此，电池模组200放入半容置空间50内时，电池模组200上具有一半高度的拿持位，以便于使电池模组200稳定进入半容置空间50内。此外，由于半容置空间50的高度为电池模组200高度的一半，电池模组200进入半容置空间50内时不易发生跌落，从而确保电池模组200的安全性能。
进一步地，第二中框40通过卡扣与第一中框30上的卡槽配合卡接，以实现第一中框 30与第二中框40的拼接，从而形成完整的容置空间，将电池模组200密封设置于该容置空间内。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围，其均应涵盖在本申请的权利要求和说明书的范围当中。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (10)

  1. 一种电池箱体，用于放置电池模组，所述电池箱体包括：
    相对设置的第一端板与第二端板；
    第一中框，连接于所述第一端板与所述第二端板之间；所述第一端板、所述第二端板以及所述第一中框共同围合形成一端开口的半容置空间，所述半容置空间在所述电池模组的进入方向上的高度小于所述电池模组的高度；以及
    第二中框，沿所述电池模组的所述进入方向与所述第一中框拼接，并封闭所述开口。
  2. 根据权利要求1所述的电池箱体，其中，所述第一中框包括第一侧板、第二侧板以及第三侧板，所述第一侧板沿第一方向连接于所述第一端板与所述第二端板之间，所述第二侧板及所述第三侧板沿与所述第一方向相交的第二方向分别形成于所述第一侧板相对的两端，并连接于当前所在端的所述第一端板与所述第二端板之间；
    在所述电池模组的所述进入方向上，所述第二侧板及所述第三侧板的高度小于所述电池模组的高度。
  3. 根据权利要求1或2任意一项所述的电池箱体，其中，所述第一中框、所述第一端板以及所述第二端板一体成型为第一箱体总成。
  4. 根据权利要求2所述的电池箱体，其中，所述第二中框包括第四侧板、第五侧板以及第六侧板，所述第四侧板沿所述第一方向连接于所述第一端板与所述第二端板之间，所述第五侧板及所述第六侧板沿所述第二方向分别形成于所述第四侧板相对的两端，并连接于当前所在端的所述第一端板与所述第二端板之间；
    其中，所述第五侧板与所述第二侧板拼接，所述第六侧板与所述第三侧板拼接。
  5. 根据权利要求4所述的电池箱体，其中，所述第一中框、所述第一端板以及所述第二端板一体成型为第一箱体总成，所述第四侧板、第五侧板以及第六侧板一体成型为第二箱体总成；
    所述第一箱体总成与所述第二箱体总成共同构造形成所述电池箱体。
  6. 根据权利要求1-5任意一项所述的电池箱体，其中，所述第一中框与所述第二中框其中一者上设置第一固定件，另一者上设置与所述第一固定件配合的第二固定件，所述第二中框借由所述第一固定件与所述第二固定件沿所述电池模组的所述进入方向与所述第一中框拼接。
  7. 根据权利要求6所述的电池箱体，其中，所述第一固定件为卡扣，所述第二固定件为与所述卡扣通过卡接配合的卡槽。
  8. 一种电池，包括如权利要求1-7任意一项所述的电池箱体及容置于所述电池箱体内的电池模组。
  9. 根据权利要求8所述的电池，其中，所述电池模组包括电池单体及分别连接于所述电池单体相对两端的线束隔离板及汇流排，所述电池单体连接所述线束隔离板的一端及连接所述汇流排的一端分别与所述第一端板及所述第二端板相连。
  10. 一种用电装置，包括用电主体及如权利要求8或9所述的电池。
PCT/CN2023/076720 2022-03-10 2023-02-17 一种电池箱体、电池以及用电装置 WO2023169177A1 (zh)

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