WO2025123791A1 - 电池包及用电装置 - Google Patents
电池包及用电装置 Download PDFInfo
- Publication number
- WO2025123791A1 WO2025123791A1 PCT/CN2024/115597 CN2024115597W WO2025123791A1 WO 2025123791 A1 WO2025123791 A1 WO 2025123791A1 CN 2024115597 W CN2024115597 W CN 2024115597W WO 2025123791 A1 WO2025123791 A1 WO 2025123791A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- protrusion
- battery
- battery pack
- batteries
- bracket body
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
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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
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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- 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 bracket body includes a first end close to the groove wall and a second end close to the opening; two protrusions are provided, and one sealing member is provided; one of the two protrusions surrounds the first end, and the other surrounds the second end; the sealing member is located between the two protrusions and is respectively connected to the two protrusions.
- a guide portion is provided on a surface of the protrusion close to the first end, and the guide portion surrounds the first end; the guide portions between two adjacent batteries are arranged opposite to each other and form a guide groove.
- a plurality of the brackets are integrally formed; or
- a battery pack includes: a box body, the box body has a receiving cavity; a plurality of batteries, the plurality of batteries are arranged in the receiving cavity at intervals, and there is a gap between two adjacent batteries; a plurality of brackets, arranged in the receiving cavity, the bracket includes a bracket body and at least one protrusion surrounding the bracket body, the bracket body is sealed and connected to the battery, and the protrusion is arranged on the side of the bracket body away from the battery; the protrusion is located in the gap, the protrusion between two adjacent brackets is sealed and connected, and the protrusion isolates part of the gap to form a flow channel for liquid diversion.
- a flow channel is formed between the batteries, it can guide the coolant and meet the expansion requirements of the battery shell; the coolant flows between the batteries and immerses the battery shell, increasing the cooling efficiency, avoiding the generation of cooling dead corners, and can achieve rapid cooling of the single battery, ensure battery safety, and extend the battery life.
- Figure markings 10-box, 101-accommodating chamber, 20-battery, 201-gap, 202-shell, 203-top cover, 2021-side wall, 2022-bottom wall, 30-bracket, 301-bracket body, 3011-groove, 3012-opening, 3013-groove wall, 3014 through hole, 3015-first end, 3016-second end, 302-protrusion, 3021-guide portion, 3022-guide groove, 40-flow channel, 50-seal.
- a battery pack includes: a case 10, a plurality of batteries 20 and a plurality of brackets 30; the case 10 has a accommodating cavity 101; a plurality of batteries 20 are arranged in the accommodating cavity 101 at intervals, and a gap 201 is provided between two adjacent batteries 20; the bracket 30 is disposed in the accommodating cavity 101, the bracket 30 includes a bracket body 301 and at least one protrusion 302 surrounding the bracket body 301, the bracket body 301 is sealed and connected to the battery 20, and the protrusion 302 is disposed on a side of the bracket body 301 away from the battery 20; the protrusion 302 is located in the gap 201, the protrusion 302 between two adjacent brackets 30 is sealed and connected, and the protrusion 302 isolates part of the gap 201 to form a flow channel 40 for liquid diversion.
- the gap 201 is separated into a flow channel 40 by the protrusion 302 of the bracket 30, which can guide the coolant and meet the expansion requirements of the battery shell; the coolant flows between the batteries 20 to achieve the effect of wetting at least part of the battery shell, which can increase the cooling efficiency and avoid the generation of cooling dead corners, which can quickly cool the single battery, ensure battery safety, and extend the battery life.
- the connection of the protrusion 302 between two adjacent batteries 20 can prevent short circuits between the batteries, thereby improving the safety performance of the battery pack; the connection between the bracket body 301 and the battery 20 can also fix the battery 20, thereby improving the stability of the battery pack.
- the battery pack further includes at least one seal 50, the seal 50 surrounds the bracket body 301 and is located in the gap 201, and the seal 50 between two adjacent batteries 20 is sealed and connected. It can be understood that by setting the seal 50 and the bracket 30 to cooperate with each other, the flow channel 40 between the batteries 20 is sealed, the sealing of the immersed cooling liquid in the flow channel 40 is ensured, and the splashing of the immersion liquid in the battery pack is prevented.
- the through hole 3014 is used to expose the functional areas on the top cover sheet 203, such as the pole, explosion-proof valve, etc., to facilitate the connection and use of the battery 20.
- the protrusion 302 of the bracket, the side wall 2021 of the battery, and the bottom plate of the box body form a flow channel 40, which achieves rapid immersion cooling of the battery 20 and reduces the risk of thermal runaway.
- the bracket body 301 of the bracket 30 includes a first end 3015 close to the groove wall 3013 and a second end 3016 close to the opening 3012; there is one protrusion 302, and two sealing members 50 are provided; one of the two sealing members 50 surrounds the first end 3015 and is located outside the flow channel 40, and the other surrounds the second end 3016 and is located inside the flow channel 40; the protrusion 302 is located between the two sealing members 50, and is connected to the two sealing members 50 respectively.
- the direction from the second end 3016 to the first end 3015 is the thickness direction of the bracket body 301, and the direction indicated by the arrow in FIG. 10 is the thickness direction X; the protrusion 302 surrounds the central axis of the bracket body 301 in the thickness direction, and the central axis is shown by the dotted line in FIG. 10 .
- the protrusion 302 is located in the middle of the bracket body 301, and the two sealing members 50 are symmetrically arranged along the protrusion 302. It can be understood that the protrusion 302 surrounds the central axis of the bracket body 301 in the thickness direction, which can make the bracket body 301 more stable and less prone to deformation.
- the two sets of sealing members 50 are symmetrically arranged along the protrusion 302, which can achieve a double sealing effect to ensure that the electrolyte will not leak, and the sealing members 50 on both sides adopt the same size specifications, which is convenient for assembly and preparation.
- the bracket body 301 in the bracket 30 includes a first end 3015 close to the groove wall 3013 and a second end 3016 close to the opening 3012; two protrusions 302 are provided, and one sealing member 50 is provided; one of the two protrusions 302 surrounds the first end 3015, and the other surrounds the second end 3016; the sealing member 50 is located between the two protrusions 302 and is connected to the two protrusions 302 respectively.
- the bracket 30 as a whole presents a shape of being concave in the middle and convex on both sides, and the sealing member 50 is located in the area between the two groups of protrusions 302.
- the sealing member 50 is embedded in the middle of the bracket 30 to seal the flow channel 40. In order to ensure the sealing effect, the side of the sealing member 50 is flush with the side of the protrusion 302 ring.
- the direction from the second end 3016 to the first end 3015 is the thickness direction of the bracket body 301, and the direction indicated by the arrow in FIG. 12 is the thickness direction X;
- the seal 50 surrounds the central axis of the bracket body 301 in the thickness direction, the central axis is shown by the dotted line in FIG. 12, and the two protrusions 302 are symmetrically arranged along the seal 50.
- the seal 50 is located at the central axis of the bracket body 301 in the thickness direction, which improves the sealing effect between the flow channel 40 and other spaces in the box 10.
- a guide portion 3021 is provided on the surface of the protrusion 302 near the first end 3015, and the guide portion 3021 surrounds the first end 3015; the guide portions 3021 between two adjacent batteries 20 are arranged opposite to each other and form a guide groove 3022.
- the guide groove 3022 is arranged at the edge of the bracket 30 and can be used as a groove for glue flow; a sealant is arranged in the guide groove 3022 and the sealant can flow through the guide groove 3022, and the guide groove 3022 can cooperate with the sealant to further seal the flow channel 40, thereby improving the sealing of the immersion liquid and preventing the immersion liquid from leaking in the battery pack.
- brackets 30 are integrally formed and can be formed according to the arrangement of the batteries 20.
- the integral forming can improve the body stability of the connection of the brackets 30, reduce the assembly process of the brackets, and ensure that the distance and position between the brackets 30 are consistent, thereby improving the consistency and stability of the battery pack.
- the plurality of brackets 30 are detachably connected.
- a detachable connection refers to a design in which two or more objects are connected by a certain connection method and can be easily disassembled and reconnected when needed.
- the detachable connection method includes a threaded connection, a latch connection, a snap connection, etc.
- the detachable connection can facilitate maintenance and replacement of the connected objects, reducing the difficulty and cost of processing and manufacturing.
- the sealing member 50 may be a sealing foam or a sealing ring.
- the battery pack further includes an upper cover and a lower cover that cover the box body 10, and the upper cover, the lower cover and the box body together enclose a complete accommodating cavity 101.
- a liquid inlet and a liquid outlet are also provided on the outer wall of the box body 10; for example, a liquid inlet is provided in the middle of the side wall of the box body 10, and liquid outlets are provided on both sides, and the liquid inlet and the liquid outlet are both connected to the flow channel 40, and the coolant enters the flow channel 40 from the liquid inlet, flows through the shell surface of the battery 20, circulates and flows out through the liquid outlet, and realizes cooling of the battery.
- the battery pack also includes a high-voltage power-off system (BDU) for controlling the flow of current to different loads and an energy distribution unit; a battery management system (BMS) for measuring battery parameters such as voltage, current and temperature; and high and low voltage plugs arranged on the outside of the box for connecting to the load.
- BDU high-voltage power-off system
- BMS battery management system
- high and low voltage plugs arranged on the outside of the box for connecting to the load.
- the present application also provides an electrical device, including the battery pack provided in this embodiment.
- the electrical device can be an application device such as a vehicle, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, and an electric tool.
- the vehicle can be a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc.
- the spacecraft includes an airplane, a rocket, a space shuttle, and a spacecraft, etc.
- the electric toy includes a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc.
- the electric tool includes a metal cutting electric tool, a grinding electric tool, an assembly electric tool, and an electric tool for railways, for example, an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact drill, a concrete vibrator, and an electric planer, etc.
- the embodiments of the present application do not impose any special restrictions on the above-mentioned electrical devices.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
本文公布一种电池包及用电装置,包括:箱体,箱体具有容纳腔;多个电池,多个电池间隔排布于容纳腔中,相邻两个电池之间具有间隙;多个支架,设置在容纳腔中,支架包括支架本体和至少一个环绕支架本体的凸起,支架本体与电池密封连接,凸起设置在支架本体远离电池的一侧;凸起位于间隙中,相邻两个支架之间的凸起密封连接,且凸起将部分间隙隔离出用于液体导流的流道。本申请由于在电池之间形成了流道,可以起到冷却液导流以及满足电池壳体膨胀的需求;冷却液在电池之间流动并浸没电池的壳体,增大冷却效率,避免产生冷却死角,能够实现对单体电池进行快速冷却,保障电池安全,延长电池使用寿命。
Description
本申请要求于2023年12月15日提交中国专利局、申请号为202311733471.9、申请名称为“电池包及用电装置”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。
本申请实施例涉及但不限于电池技术领域,具体涉及一种电池包及用电装置。
随着新能源汽车的不断发展,动力电池作为新能源电池的动力来源,在新能源汽车中被广泛应用。电池在使用过程中会出现发热现象,长时间处于高温的状态下会降低电池的寿命,甚至出现热失控的危险。
本申请提供一种电池包及用电装置,通过对单体电池实现浸没式液冷,以增大冷却效率,延长电池使用寿命。
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
第一方面,提供了一种电池包,包括:
箱体,所述箱体具有容纳腔;
多个电池,多个所述电池间隔排布于所述容纳腔中,相邻两个所述电池之间具有间隙;
多个支架,设置在所述容纳腔中,所述支架包括支架本体和至少一个环绕所述支架本体的凸起,所述支架本体与所述电池密封连接,所述凸起设置在所述支架本体远离所述电池的一侧;
所述凸起位于所述间隙中,相邻两个所述支架之间的所述凸起密封连接,且所述凸起将部分所述间隙隔离出用于液体导流的流道。
可选地,还包括:
至少一个密封件,所述密封件环绕所述支架本体并位于所述间隙中,相邻两个所述电池之间的所述密封件密封连接。
可选地,所述电池包括壳体和顶盖片;所述壳体包括侧壁和与所述侧壁连接的底壁,所述侧壁和所述底壁围合成空腔,所述顶盖片与所述侧壁连接并盖封所述空腔;
所述支架本体设有凹槽,所述凹槽具有开口和与所述开口相对的槽壁,所述侧壁的部分穿设所述开口,且所述槽壁与所述顶盖片、所述底壁中的至少一者连接;所述槽壁具有贯穿的通孔,所述开口和所述通孔连通。
可选地,每一个所述电池连接一个所述支架本体,所述支架本体与所述箱体的底壁间隔设置;所述槽壁与所述顶盖片连接,且部分所述顶盖片从所述通孔露出;所述凸起、所述电池的侧壁和所述箱体的底壁共同围合成所述流道。
可选地,每一个所述电池连接两个所述支架本体;两个所述支架本体中的一者与所述箱体的底壁间隔设置,且所述槽壁与所述顶盖片连接,部分所述顶盖片从所述通孔露出;两个所述支架本体中的另一者与所述箱体的底壁连接,且所述槽壁与所述底壁连接,部分所述底壁从所述通孔露出;两个所述支架本体的凸起和所述电池的侧壁共同围合成所述流道。
可选地,所述支架本体包括靠近所述槽壁的第一端和靠近所述开口的第二端;所述凸起设有一个,所述密封件设有一个;所述凸起环绕所述第一端,所述密封件环绕所述第二端;所述密封件位于所述流道内并与所述凸起连接。
可选地,所述支架本体包括靠近所述槽壁的第一端和靠近所述开口的第二端;所述凸起设有一个,所述密封件设有两个;两个所述密封件中的一个环绕所述第一端并位于所述流道外,另一个环绕所述第二端并位于所述流道内;所述凸起位于两个所述密封件之间,且分别与两个所述密封件连接。
可选地,所述第二端朝向所述第一端的方向为所述支架本体的厚度方向;所述凸起环绕所述支架本体在所述厚度方向的中轴线,且两个所述密封件沿所述凸起对称设置。
可选地,所述支架本体包括靠近所述槽壁的第一端和靠近所述开口的第二端;所述凸起设有两个,所述密封件设有一个;两个所述凸起中的一个环绕所述第一端,另一个环绕所述第二端;所述密封件位于两个所述凸起之间,并分别与两个所述凸起连接。
可选地,所述第二端朝向所述第一端的方向为所述支架本体的厚度方向;所述密封件环绕所述支架本体在所述厚度方向的中轴线,且两个所述凸起沿所述密封件对称设置。
可选地,所述凸起靠近所述第一端的表面设有导向部,所述导向部环绕所述第一端;相邻两个所述电池之间的所述导向部相对设置并形成导向槽。
可选地,多个所述支架之间一体成型;或者
多个所述支架之间可拆卸连接。
第二方面,本申请还提供一种用电装置,包括所述的电池包。
本申请实施例的一种电池包,包括:箱体,箱体具有容纳腔;多个电池,多个电池间隔排布于容纳腔中,相邻两个电池之间具有间隙;多个支架,设置在容纳腔中,支架包括支架本体和至少一个环绕支架本体的凸起,支架本体与电池密封连接,凸起设置在支架本体远离电池的一侧;凸起位于间隙中,相邻两个支架之间的凸起密封连接,且凸起将部分间隙隔离出用于液体导流的流道。由于在电池之间形成了流道,可以起到冷却液导流以及满足电池壳体膨胀的需求;冷却液在电池之间流动并浸没电池的壳体,增大冷却效率,避免产生冷却死角,能够实现对单体电池进行快速冷却,保障电池安全,延长电池使用寿命。
本申请实施例的用电装置可以包括上述电池包的所有技术特征和有益效果,在此不再赘述。
图1为本申请实施例提供的一种电池包结构示意图;
图2为图1的爆炸示意图;
图3为图1中电池排布的局部示意图;
图4为本申请实施例提供的一种电池包的截面示意图;
图5为图4中A处的局部放大示意图;
图6为本申请一种实施例提供的支架示意图;
图7为图6的仰视图;
图8为图6的支架连接后的局部示意图;
图9为本申请实施例提供的密封件结构示意图;
图10为本申请另一种实施例提供的支架示意图;
图11为采用图10支架的电池包局部示意图;
图12为本申请又一种实施例提供的支架示意图;
图13为采用图12支架的电池包局部示意图;
附图标记:10-箱体,101-容纳腔,20-电池,201-间隙,202-壳体,203-顶盖片,2021-侧壁,2022-底壁,30-支架,301-支架本体,3011-凹槽,3012-开口,3013-槽壁,3014通孔,3015-第一端,3016-第二端,302-凸起,3021-导向部,3022-导向槽,40-流道,50-密封件。
本申请的实施方式
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。所描述的实施例仅仅是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域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。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开,下文中对特定例子的部件和设置进行描述。当然,它们仅仅为示例,并且目的不在于限制本申请。
参见图1、图2、图3和图5所示的一种电池包,包括:箱体10、多个电池20和多个支架30;箱体10具有容纳腔101;多个电池20间隔排布于容纳腔101中,相邻两个电池20之间具有间隙201;支架30设置在所述容纳腔101中,支架30包括支架本体301和至少一个环绕支架本体301的凸起302,支架本体301与电池20密封连接,凸起302设置在支架本体301远离电池20的一侧;凸起302位于间隙201中,相邻两个支架30之间的凸起302密封连接,且凸起302将部分间隙201隔离出用于液体导流的流道40。
需要说明的是,本申请的电池包结构中,通过支架30的凸起302将间隙201隔出流道40可以起到冷却液导流以及满足电池壳体膨胀的需求;冷却液在电池20之间流动,实现对至少部分的电池壳体的浸润效果,可以增大冷却效率,避免产生冷却死角,这可以对单体电池进行快速冷却,保障电池安全,延长电池使用寿命。同时,相邻两个电池20之间的凸起302连接可以防止电池之间短路,提高了电池包的安全性能;支架本体301与电池20连接还可以对电池20起到固定作用,从而提高电池包的稳定性。
在一些实施例中,参见图2、图5和图9,电池包还包括至少一个密封件50,密封件50环绕支架本体301并位于间隙201中,相邻两个电池20之间的密封件50密封连接。可以理解的是,通过设置密封件50与支架30之间相互配合对电池20之间的流道40起到密封作用,保证浸没的冷却液体在流道40中的密封性,防止浸没液体在电池包内的飞溅。
在一些实施例中,参见图3,电池20包括壳体202和顶盖片203;壳体202包括侧壁2021和与侧壁2021连接的底壁2022,侧壁2021和底壁2022围合成空腔,顶盖片203与侧壁2021连接并盖封空腔。可以理解的是,图3中的电池20为方形结构,空腔用于放置电极组件、电解液等,壳体202和顶盖片203围合后保证了空腔内的电极组件位置固定,并可以防止电解液泄漏,提高电池20的性能。当然,电池20不限于图3中的方形结构,还可以是圆柱形或其
他形状的电池。为了进一步防止冷却液体与电池壳体的影响,壳体202和顶盖片203的材质采用具有较高的耐腐蚀性和耐磨损性材料,以提高电池的使用寿命。
在一些实施例中,参见图6和图7,支架本体301设有凹槽3011,凹槽3011具有开口3012和与开口3012相对的槽壁3013,侧壁2021的部分穿设开口3012,且槽壁3013与顶盖片203、底壁2022中的至少一者连接;槽壁3013具有贯穿的通孔3014,开口3012和通孔3014连通。支架30的结构与电池20相匹配,以适配彼此连接的要求。
在一些实施例中,参见图11,每一个电池20连接一个支架本体301,支架本体301与箱体10的底壁间隔设置;槽壁3013与顶盖片203连接,且部分顶盖片203从通孔3014露出;凸起302、电池20的侧壁2021和箱体10的底壁共同围合成流道40。可以理解的是,支架30设置在顶盖片203的一侧,此时电池的底壁2022可以直接固定在箱体的底板(图中未画出)上。支架30设置在顶盖片203的一侧可以对电池20起到一定的固定作用。此外,通孔3014用于暴露出顶盖片203上的功能区,如极柱、防爆阀等,便于电池20的连接和使用。支架的凸起302、电池的侧壁2021、以及箱体的底板三者围合成流道40,实现了对电池20浸没式的快速降温,降低热失控风险。
在一些实施例中,参见图4和图5,每一个电池20连接两个支架本体301;两个支架本体301中的一者与箱体10的底壁间隔设置,且槽壁3013与顶盖片203连接,部分顶盖片203从通孔3014露出;两个支架本体301中的另一者与箱体10的底壁连接,且槽壁3013与底壁2022连接,部分底壁2022从通孔3014露出;两个支架本体301的凸起302和电池20的侧壁2021共同围合成流道40。与图11不同的是,支架30分别设置在电池的顶盖片203的一侧和底壁2022的一侧,因此每个电池20对应连接的两个支架30是相对设置的,相对的两个支架30可以固定电池20之间的间距,实现对电池20的固定。此外,通孔3014同样用于暴露出顶盖片203上的功能区,如极柱、防爆阀等,便于电池20的连接和使用。支架的凸起302、电池的侧壁2021共同围合成流道40,实现了对电池20浸没式的快速降温,降低热失控风险。
在一些实施例中,进一步参见图5、图6和图7,提供一种结构的支架30;支架30中的支架本体301包括靠近槽壁3013的第一端3015和靠近开口3012的第二端3016;凸起302设有一个,密封件50设有一个;凸起302环绕第一端3015,密封件50环绕第二端3016;密封件50位于流道40内并与凸起302连接。可以理解的是,支架本体301的第一端3015环绕着凸起302,可以将电池20之间的间隙201隔离成流道40,同时设置密封件50在流道40中并与凸起302连接,可以提高对流道40的密封性,也可以提高电池包的稳定性,防止电池间出现松动。为
了保证密封效果的同时不影响流道40的体积,密封件50环绕第二端3016后的侧面与凸起302环绕第一端3015后的侧面齐平。
在一些实施例中,参见图10和图11,提供了另一种结构的支架30;支架30的支架本体301包括靠近槽壁3013的第一端3015和靠近开口3012的第二端3016;凸起302设有一个,密封件50设有两个;两个密封件50中的一个环绕第一端3015并位于流道40外,另一个环绕第二端3016并位于流道40内;凸起302位于两个密封件50之间,且分别与两个密封件50连接。此时,支架30整体呈现出中间凸两边凹的形状,密封件50可以沿凸起302的两侧放置,对流道40进行多重密封,提高密封效果。当然,为了保证密封效果的同时不影响流道40的体积,密封件50的侧面与凸起302环的侧面齐平。
在一些实施例中,进一步参见图10,第二端3016朝向第一端3015的方向为支架本体301的厚度方向,图10中箭头所指的方向为厚度方向X;凸起302环绕支架本体301在厚度方向的中轴线,中轴线为图10中虚线所示,此时凸起302位于支架本体301的中间,且两个密封件50沿凸起302对称设置。可以理解的是,凸起302环绕支架本体301在厚度方向的中轴线,可以使支架本体301更加稳固,不容易发生变形,两组密封件50沿凸起302对称设置,可以起到双重的密封效果,保证电解液不会泄漏,且两侧的密封件50采用相同的尺寸规格,便于组装制备。
在一些实施例中,参见图12和图13,提供了另一种结构的支架30;支架30中的支架本体301包括靠近槽壁3013的第一端3015和靠近开口3012的第二端3016;凸起302设有两个,密封件50设有一个;两个凸起302中的一个环绕第一端3015,另一个环绕第二端3016;密封件50位于两个凸起302之间,并分别与两个凸起302连接。此时,支架30整体呈现出中间凹两边凸的形状,密封件50位于两组凸起302之间的区域,此时密封件50镶嵌在支架30的中间对流道40进行密封,为了保证密封效果,密封件50的侧面与凸起302环的侧面齐平。
在一些实施例中,进一步参见图12,第二端3016朝向第一端3015的方向为支架本体301的厚度方向,图12中箭头所指的方向为厚度方向X;密封件50环绕支架本体301在厚度方向的中轴线,中轴线为图12中虚线所示,且两个凸起302沿密封件50对称设置。可以理解的是,设置两组凸起302且对称设置可以保证支架30整体结构的稳定性,并提高对电池20的固定作用,密封件50位于支架本体301在厚度方向的中轴线,提高了流道40与箱体10内其它空间的密封效果。
在一些实施例中,进一步参见图8和图13,凸起302靠近第一端3015的表面设有导向部3021,导向部3021环绕第一端3015;相邻两个电池20之间的导向部3021相对设置并形成导向槽3022。可以理解的是,导向槽3022设置在支架30的边缘,可以作为流胶的凹槽;导向槽3022内设置密封胶并且密封胶可以通过导向槽3022流动,导向槽3022可以配合密封胶进一步对流道40进行密封,提高浸没液体的密封性,防止浸没液体在电池包内的泄露。
在一些实施例中,多个支架30之间一体成型,可以根据电池20排布的方式来成型多个支架30,一体成型可以提高支架30连接的体稳定性,可以减少支架的组装工序,可以保证支架30之间的距离和位置一致,从而提高电池包的一致性和稳定性。
在一些实施例中,多个支架30之间可拆卸连接。可拆卸连接是指两个或多个物件之间通过一定的连接方式连接,并可以在需要时方便地拆卸和重新连接的设计。可拆卸连接方式包括螺纹连接、插销连接、卡扣连接等。可拆卸连接的可以方便维护和更换连接的物件,减少加工和制造的难度和成本。
在一些实施例中,密封件50可以是密封泡棉或密封圈。
在一些实施例中,进一步参见图1和图2,电池包还包括盖封箱体10的上盖和下盖,上盖、下盖和箱体共同围合成完整的容纳腔101。在箱体10的外壁上还设有进液口和出液口;例如在箱体10侧壁的的中间设置进液口,两侧设置出液口,进液口和出液口均与流道40连通,冷却液从进液口进入流道40,并流过电池20的壳体表面,循环流动并经出液口流出,并实现对电池的冷却。
在一些实施例中,电池包内还包括高压断电系统(BDU),用于控制电流流向,给到不同的负载,能量分配单元;电池管理系统(BMS),用于测量电池的电压、电流和温度等参数;高低压插头,设置在箱体的外侧,用于与负载连接。
在一些实施例中,本申请还提供一种用电装置,包括本实施例提供的电池包。其中,用电装置可以是车辆、手机、便携式设备、笔记本电脑、轮船、航天器、电动玩具和电动工具等应用器件。车辆可以是新能源汽车,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;航天器包括飞机、火箭、航天飞机和宇宙飞船等等;电动玩具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;电动工具包括金属切削电动工具、研磨电动工具、装配电动工具和铁道用电动工具,例如,电钻、电动砂轮机、电动扳手、电动螺丝刀、电锤、冲击电钻、混凝土振动器和电刨等等。本申请实施例对上述用电装置不做特殊限制。
以上对本申请所提供的电池包及用电装置进行了详细介绍,本文中应用了具体个例对本申请的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本申请的方法及其核心思想;同时,对于本领域的技术人员,依据本申请的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本申请的限制。
Claims (14)
- 一种电池包,其中,包括:箱体,所述箱体具有容纳腔;多个电池,多个所述电池间隔排布于所述容纳腔中,相邻两个所述电池之间具有间隙;多个支架,设置在所述容纳腔中,所述支架包括支架本体和至少一个环绕所述支架本体的凸起,所述支架本体与所述电池密封连接,所述凸起设置在所述支架本体远离所述电池的一侧;所述凸起位于所述间隙中,相邻两个所述支架之间的所述凸起密封连接,且所述凸起将部分所述间隙隔离出用于液体导流的流道。
- 根据权利要求1所述的电池包,其中,还包括:至少一个密封件,所述密封件环绕所述支架本体并位于所述间隙中,相邻两个所述电池之间的所述密封件密封连接。
- 根据权利要求2所述的电池包,其中,所述电池包括壳体和顶盖片;所述壳体包括侧壁和与所述侧壁连接的底壁,所述侧壁和所述底壁围合成空腔,所述顶盖片与所述侧壁连接并盖封所述空腔;所述支架本体设有凹槽,所述凹槽具有开口和与所述开口相对的槽壁,所述侧壁的部分穿设所述开口,且所述槽壁与所述顶盖片、所述底壁中的至少一者连接;所述槽壁具有贯穿的通孔,所述开口和所述通孔连通。
- 根据权利要求3所述的电池包,其中,每一个所述电池连接一个所述支架本体,所述支架本体与所述箱体的底壁间隔设置;所述槽壁与所述顶盖片连接,且部分所述顶盖片从所述通孔露出;所述凸起、所述电池的侧壁和所述箱体的底壁共同围合成所述流道。
- 根据权利要求3所述的电池包,其中,每一个所述电池连接两个所述支架本体;两个所述支架本体中的一者与所述箱体的底壁间隔设置,且所述槽壁与所述顶盖片连接,部分所述顶盖片从所述通孔露出;两个所述支架本体中的另一者与所述箱体的底壁连接,且所述槽壁与所述底壁连接,部分所述底壁从所述通孔露出;两个所述支架本体的凸起和所述电池的侧壁共同围合成所述流道。
- 根据权利要求3所述的电池包,其中,所述支架本体包括靠近所述槽壁的第一端和靠近所述开口的第二端;所述凸起设有一个,所述密封件设有一个;所述凸起环绕所述第一端,所述密封件环绕所述第二端;所述密封件位于所述流道内并与所述凸起连接。
- 根据权利要求4或5所述的电池包,其中,所述支架本体包括靠近所述槽壁的第一端和靠近所述开口的第二端;所述凸起设有一个,所述密封件设有两个;两个所述密封件中的一个环绕所述第一端并位于所述流道外,另一个环绕所述第二端并位于所述流道内;所述凸起位于两个所述密封件之间,且分别与两个所述密封件连接。
- 根据权利要求7所述的电池包,其中,所述第二端朝向所述第一端的方向为所述支架本体的厚度方向;所述凸起环绕所述支架本体在所述厚度方向的中轴线,且两个所述密封件沿所述凸起对称设置。
- 根据权利要求3所述的电池包,其中,所述支架本体包括靠近所述槽壁的第一端和靠近所述开口的第二端;所述凸起设有两个,所述密封件设有一个;两个所述凸起中的一个环绕所述第一端,另一个环绕所述第二端;所述密封件位于两个所述凸起之间,并分别与两个所述凸起连接。
- 根据权利要求9所述的电池包,其中,所述第二端朝向所述第一端的方向为所述支架本体的厚度方向;所述密封件环绕所述支架本体在所述厚度方向的中轴线,且两个所述凸起沿所述密封件对称设置。
- 根据权利要求6或9中任一项所述的电池包,其中,所述凸起靠近所述第一端的表面设有导向部,所述导向部环绕所述第一端;相邻两个所述电池之间的所述导向部相对设置并形成导向槽。
- 根据权利要求1所述的电池包,其中,多个所述支架之间一体成型。
- 根据权利要求1所述的电池包,其中,多个所述支架之间可拆卸连接。
- 一种用电装置,其中,包括权利要求1至13中任一项所述的电池包。
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