WO2019095611A1 - 电池的外壳结构 - Google Patents

电池的外壳结构 Download PDF

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Publication number
WO2019095611A1
WO2019095611A1 PCT/CN2018/081895 CN2018081895W WO2019095611A1 WO 2019095611 A1 WO2019095611 A1 WO 2019095611A1 CN 2018081895 W CN2018081895 W CN 2018081895W WO 2019095611 A1 WO2019095611 A1 WO 2019095611A1
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WO
WIPO (PCT)
Prior art keywords
bottom plate
groove
outer casing
housing
battery
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PCT/CN2018/081895
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English (en)
French (fr)
Inventor
王有生
丁朝阳
丁坤
Original Assignee
深圳市瑞德丰精密制造有限公司
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Application filed by 深圳市瑞德丰精密制造有限公司 filed Critical 深圳市瑞德丰精密制造有限公司
Publication of WO2019095611A1 publication Critical patent/WO2019095611A1/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
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
    • H01M50/103—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
    • 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
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/147—Lids or covers
    • 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 utility model relates to the technical field of batteries, in particular to the outer casing structure of the battery.
  • Lithium batteries are Its high capacity and other excellent characteristics are widely used in electronic products.
  • the lithium battery includes a casing, a top cover, a battery core and the like, wherein the battery core is disposed inside the casing, the upper end of the casing has an upper end opening, and the top cover is closed at an opening of the upper end of the casing, so that the battery constitutes a complete integral structure.
  • the outer casing structure of the battery provided by the utility model is intended to solve the problem that the battery case having a large thickness is large in the prior art, which is disadvantageous to the transportation of the outer casing and the subsequent assembly.
  • the outer casing structure of the battery comprises a casing having a square shape, the inside of the casing is formed with a cavity for accommodating the electric core, and the top of the casing has a communication chamber
  • the top opening of the housing has a bottom plate disposed opposite the top opening of the cavity, and an end surface of the bottom plate is provided with a groove, and the groove is arranged in an elongated shape.
  • the bottom plate has an outer end surface facing away from the cavity, and the groove is disposed at an outer end surface of the bottom plate.
  • the bottom plate has an inner end surface facing the cavity, and the groove is disposed at an inner end surface of the bottom plate.
  • the length extending direction of the groove coincides with the extending direction of the length of the bottom plate.
  • the bottom plate of the housing is provided with a plurality of the grooves.
  • each of the grooves has the same depth.
  • each of the grooves is spaced apart, and the grooves are arranged in parallel with each other to form a groove group.
  • each of the groove sets is arranged along a length extension direction of the bottom plate.
  • an arc-shaped transition is formed between the bottom of the groove and the sidewall of the groove.
  • the outer casing structure of the battery provided by the utility model is provided with a groove on the end surface of the bottom plate, so that the weight of the outer casing can be reduced, and the transportation of the casing and subsequent assembly are facilitated. At the same time, it also reduces the material required to manufacture the outer casing and reduces the production cost of the outer casing. In this way, the problem that the battery case having a large thickness is large in weight is disadvantageous, which is disadvantageous to the transportation of the outer casing and subsequent assembly.
  • FIG. 1 is a perspective view of a housing structure of a battery according to an embodiment of the present invention.
  • FIG. 2 is a bottom view of the outer casing structure of the battery provided by the embodiment of the present invention.
  • FIG. 3 is a cross-sectional view showing the structure of a battery of the battery according to an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view showing another embodiment of a housing structure of a battery according to an embodiment of the present invention.
  • FIG. 5 is a schematic cross-sectional view showing another embodiment of the outer casing structure of the battery according to the embodiment of the present invention.
  • the outer casing structure of the battery provided by the utility model is used for solving the problem that the outer casing of the lithium battery is heavy, which is disadvantageous to the transportation of the outer casing and the subsequent assembly, and can also be used in other various types of batteries, and is not limited to the embodiment.
  • the outer casing structure of the battery includes a casing, and the casing has a square shape.
  • the casing may be disposed in other shapes according to actual needs;
  • the interior of the casing is formed with a cavity for accommodating the electric core, and the top of the casing has a connection.
  • the top opening of the cavity during the assembly process of the battery, the battery core is placed inside the casing, and the top cover is closed at the opening of the casing, so that the battery forms a complete integral structure to supply power to the outside;
  • the bottom of the casing There is a bottom plate 11 disposed opposite the top opening of the cavity, and an end surface of the bottom plate is provided with an elongated groove 12.
  • the outer casing structure of the battery provided above is provided with the recess 12 at the end surface of the bottom plate 11, so that the weight of the outer casing can be reduced without affecting the use performance of the outer casing, and the transportation of the casing and subsequent assembly can be facilitated. At the same time, it also reduces the material required to manufacture the outer casing and reduces the production cost of the outer casing. In this way, the problem that the battery case having a large thickness is large in weight is disadvantageous, which is disadvantageous to the transportation of the outer casing and subsequent assembly.
  • the bottom plate 11 has an outer end surface facing away from the cavity and an inner end surface facing the cavity, and the outer end surface of the bottom plate 11 is provided with the above-mentioned groove 12.
  • the recess 12 may also be disposed on the inner end surface of the bottom plate 11.
  • the length extending direction of the groove 12 coincides with the extending direction of the length of the bottom plate 11.
  • the arrangement of the recesses 12 on the bottom plate 11 is facilitated to facilitate the production of the battery casing.
  • the bottom plate 11 of the housing is provided with a plurality of grooves 12.
  • the weight of the outer casing can be further reduced without affecting the performance of the outer casing.
  • six recesses 12 are provided, and the respective recesses 12 are spaced apart from each other.
  • the depths of the respective grooves 12 are the same, so that the depth of the single groove 12 can be prevented from being excessively large, affecting the performance of the housing, and the depths of the respective grooves 12 are set to be the same, and the groove 12 is also facilitated. Manufacturing to improve the production efficiency of the housing.
  • each of the grooves 12 are spaced apart, and the grooves 12 are arranged in parallel with each other to form a groove group.
  • a more orderly arrangement between the individual grooves 12 facilitates the use of the housing.
  • each groove group is arranged along the length extension direction of the bottom plate 11.
  • the respective grooves 12 can be arranged relatively evenly on the bottom plate 11, so that the weight distribution of the housing is uniform, which is advantageous for assembly and use of the housing.
  • the bottom of the groove 12 and the side wall of the groove 12 have an arc-shaped transition. In this way, a smooth transition between the bottom of the recess 12 and the side wall of the recess 12 facilitates cleaning of the surface of the housing.

Landscapes

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

Abstract

一种电池的外壳结构，包括呈四方体状的壳体，所述壳体的内部形成有容纳电芯的的容腔，所述壳体的顶部具有连通所述容腔的顶部开口，所述壳体的底部具有与所述容腔的顶部开口相对布置的底板11，所述底板11的端面设置有凹槽12，所述凹槽12呈长条状布置，通过在壳体的端面形成至少一个凹槽，这样可以降低外壳的重量，便于壳体的运输以及后续的装配，同时，也减少了制造外壳所需要的材料，降低了外壳的生产成本，解决了厚度较大的电池外壳重量较大，不利于外壳的运输以及后续的装配的问题。

Description

电池的外壳结构 技术领域
本实用新型涉及电池的技术领域，尤其是电池的外壳结构。
 背景技术
目前，随着电子产品的日益小型化、轻便化及便携带化，如摄像机、笔记本以及手机等，这些电子产品的驱动电源也向着高容量、高安全性以及轻便化的方向发展，锂电池以其高容量等优良特性，广泛地运用在电子产品中。
锂电池包括外壳、顶盖以及电芯等，其中电芯置于壳体的内部，外壳的上端具有上端开口，顶盖封闭在外壳的上端的开口，这样使得电池构成一个完整的整体结构。
现有技术中，为了增大外壳的强度，避免外壳在使用过程中发生形变，往往会通过增加外壳厚度的方式实现。然而，增加厚度之后，外壳的重量亦随之增加，不利于外壳的运输以及后续的装配。
 技术问题
本实用新型提供的电池的外壳结构，旨在解决现有技术中，厚度较大的电池外壳重量较大，不利于外壳的运输以及后续的装配的问题。
 技术解决方案
本实用新型是这样实现的，电池的外壳结构，包括呈四方体状的壳体，所述壳体的内部形成有容纳电芯的的容腔，所述壳体的顶部具有连通所述容腔的顶部开口，所述壳体的底部具有与所述容腔的顶部开口相对布置的底板，所述底板的端面设置有凹槽，所述凹槽呈长条状布置。
进一步地，所述底板具有背离所述容腔的外端面，所述凹槽设置在所述底板的外端面。
进一步地，所述底板具有朝向所述容腔的内端面，所述凹槽设置在所述底板的内端面。
进一步地，所述凹槽的长度延伸方向与所述底板的长度延伸方向一致。
进一步地，所述壳体的底板设置有多个所述凹槽。
进一步地，各个所述凹槽的深度相同。
进一步地，各个所述凹槽相间隔布置，且所述凹槽两两相对平行布置，形成凹槽组。
进一步地，各个所述凹槽组沿所述底板的长度延伸方向布置。
进一步地，所述凹槽的底部与所述凹槽的侧壁之间呈弧形过渡。
 有益效果
与现有技术相比，本实用新型提供的电池的外壳结构，通过在底板的端面设置有凹槽，这样可以降低了外壳的重量，便于壳体的运输以及后续的装配。同时，也减少了制造外壳所需要的材料，降低了外壳的生产成本。这样，解决了厚度较大的电池外壳重量较大，不利于外壳的运输以及后续的装配的问题。
 附图说明
图1是本实用新型实施例提供的电池的外壳结构的立体示意图；
图2是本实用新型实施例提供的电池的外壳结构的仰视示意图；
图3是本实用新型实施例提供的电池的外壳结构的剖切示意图；
图4是本实用新型实施例提供的电池的外壳结构的其他实施例剖切示意图；
图5是本实用新型实施例提供的电池的外壳结构的其他实施例剖切示意图。
 本发明的实施方式
为了使本实用新型的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本实用新型进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本实用新型，并不用于限定本实用新型。
以下结合具体实施例对本实用新型的实现进行详细的描述。
本实施例的附图中相同或相似的标号对应相同或相似的部件；在本实用新型的描述中，需要理解的是，若有术语“上”、“下”、“左”、“右”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实用新型和简化描述，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，因此附图中描述位置关系的用语仅用于示例性说明，不能理解为对本专利的限制，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的具体含义。
参照图1~3所示，为本实用新型提供的较佳实施例。
本实用新型提供的电池的外壳结构，用于解决锂电池的外壳重量较大，不利于外壳的运输以及后续的装配的问题，亦可用于其他各种类型的电池中，不仅限于本实施例。
电池的外壳结构，包括壳体，该壳体呈四方体状，根据实际需要，壳体亦可设置为其他形状；壳体的内部形成有容纳电芯的的容腔，壳体的顶部具有连通容腔的顶部开口，在电池装配过程中，电芯置于壳体的内部，顶盖封闭在壳体的开口，这样使得电池构成一个完整的整体结构，实现对外界的供电；壳体的底部具有与容腔的顶部开口相对布置的底板11，底板的端面设置有呈长条状的凹槽12。
上述提供的电池的外壳结构，通过在底板11的端面设置有凹槽12，这样可以在不影响外壳使用性能的情况下，降低外壳的重量，便于壳体的运输以及后续的装配。同时，也减少了制造外壳所需要的材料，降低了外壳的生产成本。这样，解决了厚度较大的电池外壳重量较大，不利于外壳的运输以及后续的装配的问题。
本实施例中，底板11具有背离容腔的外端面以及朝向容腔的内端面，底板11的外端面设置有上述的凹槽12。或者，作为其他实施例，凹槽12也可以设置在底板11的内端面。
具体地，凹槽12的长度延伸方向与底板11的长度延伸方向一致。这样，便于凹槽12在底板11上的布置，便于电池外壳的生产。
具体地，壳体的底板11设置有多个凹槽12。通过设置多个凹槽12，这样可以在不影响外壳使用性能的情况下，进一步地降低外壳的重量。本实施例中，工设置有六个凹槽12，各个凹槽12之间相间隔布置。
本实施例中，各个凹槽12的深度相同，这样，可以避免单一的凹槽12深度过大，影响壳体的使用性能，且将各个凹槽12的深度设置为相同，亦便于凹槽12的制造，提高壳体的生产效率。
本实施例中，各个凹槽12相间隔布置，且凹槽12两两相对平行布置，形成凹槽组。通过形成凹槽组，使得各个凹槽12之间更加有序的排布，便于壳体的使用。
具体地，各个凹槽组沿底板11的长度延伸方向布置。这样，使得各个凹槽12能够相对均匀的布置在底板11上，使得壳体的重量分布均匀，有利于壳体的装配及使用。
本实施例中，凹槽12的底部与凹槽12的侧壁之间呈弧形过渡。这样，使得凹槽12的底部与凹槽12的侧壁之间平滑过渡，有利于壳体表面的清洁。
以上所述仅为本实用新型的较佳实施例而已，并不用以限制本实用新型，凡在本实用新型的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本实用新型的保护范围之内。

Claims (9)

  1. 电池的外壳结构，其特征在于，包括呈四方体状的壳体，所述壳体的内部形成有容纳电芯的的容腔，所述壳体的顶部具有连通所述容腔的顶部开口，所述壳体的底部具有与所述容腔的顶部开口相对布置的底板，所述底板的端面设置有凹槽，所述凹槽呈长条状布置。
  2. 如权利要求1所述的电池的外壳结构，其特征在于，所述底板具有背离所述容腔的外端面，所述凹槽设置在所述底板的外端面。
  3. 如权利要求1所述的电池的外壳结构，其特征在于，所述底板具有朝向所述容腔的内端面，所述凹槽设置在所述底板的内端面。
  4. 如权利要求1至3任一项所述的电池的外壳结构，其特征在于，所述凹槽的长度延伸方向与所述底板的长度延伸方向一致。
  5. 如权利要求1至3任一项所述的电池的外壳结构，其特征在于，所述壳体的底板设置有多个所述凹槽。
  6. 如权利要求1至3任一项所述的电池的外壳结构，其特征在于，各个所述凹槽的深度相同。
  7. 如权利要求1至3任一项所述的电池的外壳结构，其特征在于，各个所述凹槽相间隔布置，且所述凹槽两两相对平行布置，形成凹槽组。
  8. 如权利要求7所述的电池的外壳结构，其特征在于，各个所述凹槽组沿所述底板的长度延伸方向布置。
  9. 如权利要求1至3任一项所述的电池的外壳结构，其特征在于，所述凹槽的底部与所述凹槽的侧壁之间呈弧形过渡。
PCT/CN2018/081895 2017-11-17 2018-04-04 电池的外壳结构 WO2019095611A1 (zh)

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KR20170003754A (ko) * 2015-06-30 2017-01-10 인지컨트롤스 주식회사 배터리 팩용 케이지

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CN201146200Y (zh) * 2007-12-18 2008-11-05 比亚迪股份有限公司 一种电池组用壳体及包括该壳体的电池组
CN202940280U (zh) * 2012-11-26 2013-05-15 梅岭化工厂 一种改良结构的方型锂亚硫酰氯电池壳体
CN206516680U (zh) * 2017-01-20 2017-09-22 深圳市瑞德丰精密制造有限公司 壳体的减重结构和电池

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CN201112434Y (zh) * 2007-10-31 2008-09-10 天津力神电池股份有限公司 大容量锂离子动力电池壳体筋板结构
KR20170003754A (ko) * 2015-06-30 2017-01-10 인지컨트롤스 주식회사 배터리 팩용 케이지

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