WO2019056731A1 - 具有防扭功能的导电块 - Google Patents

具有防扭功能的导电块 Download PDF

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Publication number
WO2019056731A1
WO2019056731A1 PCT/CN2018/081937 CN2018081937W WO2019056731A1 WO 2019056731 A1 WO2019056731 A1 WO 2019056731A1 CN 2018081937 W CN2018081937 W CN 2018081937W WO 2019056731 A1 WO2019056731 A1 WO 2019056731A1
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WO
WIPO (PCT)
Prior art keywords
conductive block
cylinder
end surface
top cover
lithium battery
Prior art date
Application number
PCT/CN2018/081937
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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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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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 WO2019056731A1 publication Critical patent/WO2019056731A1/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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
    • 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 a conductive block, in particular to a conductive block with anti-twist function.
  • Lithium batteries are Its high capacity and other excellent characteristics are widely used in electronic products.
  • the lithium battery includes a casing, a cover sheet, a battery core and the like, wherein the electric core is disposed inside the casing, the upper end of the casing has an upper end opening, and the top cover piece is closed at an opening of the upper end of the casing, and the top cover is disposed There is a conductive block, the lower part of the conductive block is connected to the battery core through the conductive sheet, and the upper end extends through the hole of the top cover sheet to the outside of the battery to realize power supply to the outside.
  • the conductive block comprises a base and a column disposed on the base, wherein the base is disposed at a bottom of the top cover piece, and the column extends through the cover piece to the outside of the lithium battery.
  • the cylinder is a cylinder.
  • the conductive block is subjected to external force. Since the cylinder is a cylinder, the conductive block is easily twisted relative to the top cover sheet, resulting in the internal structure of the lithium battery. Changes, reducing the life of lithium batteries, is not conducive to the use of lithium batteries.
  • the conductive block with anti-twist function provided by the utility model is intended to solve the problem in the prior art, in the use process of the lithium battery, when the conductive block is subjected to external force, it is easy to twist relative to the top cover piece, resulting in lithium The internal structure of the battery changes, reducing the service life of the lithium battery, which is not conducive to the use of the lithium battery.
  • the utility model is realized by the invention, comprising: a base disposed at the bottom of the top cover sheet; and a non-circular cylindrical body formed on the base and penetrating the top cover sheet, the top of the column body is formed with an upper end surface
  • the upper end surface of the cylinder is provided with a plurality of bosses above the top cover sheet and connected to the rivet sheets.
  • the outer circumference of the cylinder is elliptical.
  • an upper end surface of the cylinder is elliptical, and the upper end surface is parallel to the base.
  • the upper end surface of the column body is provided with two of the bosses, and the two bosses are respectively disposed at both ends of the upper end surface of the column body in the longitudinal direction.
  • a groove is provided on the upper end surface of the cylinder.
  • the upper end surface of the column body is upwardly convex to form a connecting post, and the connecting post is provided with a screw hole with a top opening.
  • the conductive block with anti-twist function provided by the utility model can prevent the cylinder from twisting due to external force, so that the whole body can be twisted by the external force.
  • the conductive block has a function of anti-twisting, which prevents the internal components of the lithium battery from being damaged by the twisting of the conductive block.
  • it is easy to be twisted relative to the top cover piece, resulting in a change in the internal structure of the lithium battery, reducing the service life of the lithium battery, and is disadvantageous for the lithium battery.
  • the problem of using is described in the use process of the lithium battery, when the conductive block is subjected to external force, it is easy to be twisted relative to the top cover piece, resulting in a change in the internal structure of the lithium battery, reducing the service life of the lithium battery, and is disadvantageous for the lithium battery.
  • FIG. 1 is a schematic perspective view of a first embodiment of a conductive block having a twist-proof function according to an embodiment of the present invention
  • FIG. 2 is a schematic perspective view of a second embodiment of a conductive block having a twist-proof function according to an embodiment of the present invention.
  • the conductive block with the anti-twist function provided in the embodiment is used for solving the problem that when the conductive block is subjected to external force during the use of the lithium battery, it is easy to be twisted relative to the top cover piece, resulting in a change in the internal structure of the lithium battery.
  • the utility model can reduce the service life of the lithium battery, is not conducive to the use of the lithium battery, and can be used in other various types of batteries, and is not limited to the embodiment.
  • the conductive block with anti-twist function includes a base 11 disposed at the bottom of the top cover sheet and a column 12 formed on the base 11.
  • the column 12 is non-cylindrical, wherein the upper end surface of the base 11 and the lower end surface of the top cover sheet Abutting, the column 12 extends through the top cover sheet to the outside of the lithium battery, and an upper end surface is formed on the top of the column 12.
  • the upper end surface of the column body is provided with a plurality of bosses 13 connected to the rivet piece, and the boss 13 is exposed. Above the top cover sheet. Wherein, the riveting piece is provided with a plurality of through holes corresponding to the bosses 13 .
  • the riveting piece is connected with the boss 13 , and the boss 13 is embedded in the riveting piece at this time.
  • the rivet piece and the boss 13 are then fixed by welding, thereby achieving a fixed connection between the conductive block and the top cover piece.
  • the conductive block with the anti-twist function provided above is configured to set the column 12 to be non-circular, so that the column 12 can be prevented from being twisted by the external force, so that the entire conductive block has the function of preventing twisting.
  • the internal components of the lithium battery are prevented from being damaged by the twisting of the conductive block. In this way, in the use process of the lithium battery, when the conductive block is subjected to external force, it is easy to be twisted relative to the top cover piece, resulting in a change in the internal structure of the lithium battery, reducing the service life of the lithium battery, and is disadvantageous for the lithium battery.
  • the problem of using is configured to set the column 12 to be non-circular, so that the column 12 can be prevented from being twisted by the external force, so that the entire conductive block has the function of preventing twisting.
  • the internal components of the lithium battery are prevented from being damaged by the twisting of the conductive block. In this way, in the use process of the lithium battery, when the conductive block
  • the outer circumference of the cylinder 12 is elliptical. In this way, in the assembly process of the battery, the connection between the conductive block and the top cover sheet is more convenient in the case of ensuring that the cylinder 12 does not twist.
  • the outer circumference of the cylinder 12 may be set to other shapes such as a rectangle, a triangle, or the like according to actual needs.
  • the upper end surface of the cylinder 12 is elliptical, and the upper end surface of the cylinder 12 is parallel to the base 11. That is, the upper end surface of the cylinder 12 is an ellipse parallel to the base 11. After the cylinder 12 passes through the top cover sheet, the upper end surface of the cylinder 12 is parallel to the base 11 at this time, which is more convenient for the upper portion of the cylinder 12.
  • the boss 13 on the end face is connected to the rivet piece.
  • the upper end surface of the cylinder 12 is provided with two bosses 13, and the two bosses 13 are respectively disposed on both sides in the longitudinal direction of the upper end surface of the cylinder 12, so that the connection between the boss 13 and the rivet piece is further improved. It is stable to avoid the situation in which the riveted piece is desoldered due to external force during use of the lithium battery.
  • the upper end surface of the cylinder 12 is provided with a recess 14 so that the production material of the conductive block can be saved, the production cost is saved, and the overall weight of the lithium battery is also reduced, which facilitates the carrying and use of the lithium battery.
  • the upper end surface of the cylinder 12 is upwardly convexly formed with a connecting post 15 extending outwardly through the rivet tab, and the connecting post 15 is provided with a top open threaded hole 16 through which the thread is passed.
  • the hole 16 can realize a fixed connection between the lithium battery and the external battery device.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Primary Cells (AREA)

Abstract

提供一种具有防扭功能的导电块，包括布置在顶盖片底部的底座（11）以及形成在底座（11）上且贯穿顶盖片的非正圆形的柱体（12），柱体（12）的顶部形成有上端面，上端面设置有多个显露顶盖片上方且与铆接片连接的凸台（13）。通过将柱体（12）设置为非正圆形，解决了在锂电池使用过程中，导电块在受到外界作用力时，容易相对顶盖片产生扭动，导致锂电池内部结构发生变化，降低锂电池的使用寿命的问题。

Description

具有防扭功能的导电块 技术领域
本实用新型涉及导电块的技术领域，尤其是具有防扭功能的导电块。
 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。
锂电池包括壳体、顶盖片以及电芯等，其中电芯置于壳体的内部，壳体的上端具有上端开口，顶盖片则封闭在壳体的上端的开口，顶盖板上设置有导电块，导电块的下部通过导电片与电芯连接，上端穿过顶盖片孔延伸到电池外，实现对外部的供电。
其中，导电块包括底座和设置在底座上的柱体，其中底座设置在顶盖片的底部，柱体贯穿顶盖片延伸到锂电池外。现有技术中，柱体为圆柱，在锂电池的使用过程中，导电块会受到外界的作用力，由于柱体为圆柱，导电块容易相对顶盖片产生扭动，导致锂电池内部结构发生变化，降低锂电池的使用寿命，不利于锂电池的使用。
 技术问题
本实用新型提供的具有防扭功能的导电块，旨在解决现有技术中，在锂电池的使用过程中，导电块在受到外界的作用力时，容易相对顶盖片产生扭动，导致锂电池内部结构发生变化，降低锂电池的使用寿命，不利于锂电池的使用的问题。
 技术解决方案
本实用新型是这样实现的，包括布置在顶盖片底部的底座以及形成在所述底座上且贯穿所述顶盖片的非正圆形的柱体，所述柱体的顶部形成有上端面，所述柱体的上端面设置有多个显露顶盖片上方且与铆接片连接的凸台。
进一步地，所述柱体的外周呈类椭圆状。
进一步地，所述柱体的上端面呈类椭圆形，且所述上端面与所述底座平行。
进一步地，所述柱体的上端面设置有两个所述凸台，两个所述凸台分别设置在所述柱体的上端面的长度方向的两端。
进一步地，所述柱体的上端面上设置有凹槽。
进一步地，所述柱体的上端面上朝上凸起形成连接柱，所述连接柱上设置有顶部开口的螺纹孔。
 有益效果
与现有技术相比，本实用新型提供的具有防扭功能的导电块，通过将柱体设置为非正圆形，这样，可以避免柱体因受到外界的作用力而发生扭动，使得整个导电块具有防扭的功能，避免了锂电池内部件因导电块的扭动而产生伤害。这样，解决了在锂电池的使用过程中，导电块在受到外界的作用力时，容易相对顶盖片产生扭动，导致锂电池内部结构发生变化，降低锂电池的使用寿命，不利于锂电池的使用的问题。
 附图说明
图1是本实用新型实施例提供的具有防扭功能的导电块的实施例一的立体结构示意图；
图2是本实用新型实施例提供的具有防扭功能的导电块的实施例二的立体结构示意图。
 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1~2所示，为本实用新型提供的较佳实施例。
本实施例提供的具有防扭功能的导电块，用于解决在锂电池的使用过程中，导电块在受到外界的作用力时，容易相对顶盖片产生扭动，导致锂电池内部结构发生变化，降低锂电池的使用寿命，不利于锂电池的使用的问题，亦可用于其他各种类型的电池中，不仅限于本实施例。
具有防扭功能的导电块，包括布置在顶盖片底部的底座11以及形成在底座11上柱体12，该柱体12为非圆柱，其中，底座11的上端面与顶盖片的下端面抵接，柱体12贯穿顶盖片延伸到锂电池外部，在柱体12的顶部形成上端面，该柱体的上端面设置有多个与铆接片连接的凸台13，凸台13显露在顶盖片的上方。其中，铆接片设置有多个与凸台13相对应的通孔，当柱体12穿过顶盖片达到预定位置后，将铆接片与凸台13连接，此时凸台13嵌入铆接片的通孔中，然后将铆接片与凸台13通过焊接固定，从而实现导电块与顶盖片的固定连接。
上述提供的具有防扭功能的导电块，通过将柱体12设置为非正圆形，这样，可以避免柱体12因受到外界的作用力而发生扭动，使得整个导电块具有防扭的功能，避免了锂电池内部件因导电块的扭动而产生伤害。这样，解决了在锂电池的使用过程中，导电块在受到外界的作用力时，容易相对顶盖片产生扭动，导致锂电池内部结构发生变化，降低锂电池的使用寿命，不利于锂电池的使用的问题。
具体地，柱体12的外周呈类椭圆状。这样，使得电池的组装过程中，在保证柱体12不会发生扭动的情况下，使得导电块与顶盖片的连接更加方便。根据实际需要，柱体12的外周亦可设置为其他形状，如矩形、三角形等。
具体地，柱体12的上端面呈类椭圆形，且柱体12上端面与底座11平行。也就是说，柱体12的上端面是与底座11平行的椭圆，当柱体12穿过顶盖片后，此时柱体12的上端面与底座11平行，这样更方便柱体12的上端面上的凸台13与铆接片进行连接。
具体地，柱体12的上端面设置有两个凸台13，两个凸台13分别设置在柱体12的上端面的长度方向的两侧，这样，使得凸台13与铆接片的连接更加稳固，避免锂电池在使用过程中，铆接片因为受到外力而脱焊的情况发生。
本实施例中，柱体12的上端面上设置有凹槽14，这样，可以节省导电块的生产材料，节约生产成本，同时也降低了锂电池的总体重量，便于锂电池的携带及使用。
本实施例中，柱体12的上端面上朝上凸起形成连接柱15，该连接柱15穿过铆接片朝外延伸，在连接柱15上设置有顶部开口的螺纹孔16，通过该螺纹孔16，可实现锂电池与外界用电池设备的固定连接。
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 (6)

  1. 具有防扭功能的导电块，其特征在于，包括布置在顶盖片底部的底座以及形成在所述底座上且贯穿所述顶盖片的非正圆形的柱体，所述柱体的顶部形成有上端面，所述柱体的上端面设置有多个显露顶盖片上方且与铆接片连接的凸台。
  2. 如权利要求1所述的具有防扭功能的导电块，其特征在于，所述柱体的外周呈类椭圆状。
  3. 如权利要求2所述的具有防扭功能的导电块，其特征在于，所述柱体的上端面呈类椭圆形，且所述上端面与所述底座平行。
  4. 如权利要求3所述的具有防扭功能的导电块，其特征在于，所述柱体的上端面设置有两个所述凸台，两个所述凸台分别设置在所述柱体的上端面的长度方向的两端。
  5. 如权利要求4所述的具有防扭功能的导电块，其特征在于，所述柱体的上端面上设置有凹槽。
  6. 如权利要求4所述的具有防扭功能的导电块，其特征在于，所述柱体的上端面上朝上凸起形成连接柱，所述连接柱上设置有顶部开口的螺纹孔。
PCT/CN2018/081937 2017-09-19 2018-04-04 具有防扭功能的导电块 WO2019056731A1 (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101562241A (zh) * 2009-06-01 2009-10-21 奇瑞汽车股份有限公司 一种方形锂离子电池极柱防转动装置
CN202142604U (zh) * 2011-07-01 2012-02-08 黄祥盛 止动式电池极柱
CN203481316U (zh) * 2013-09-26 2014-03-12 王文林 动力电池方形极体
JP2016096154A (ja) * 2016-01-15 2016-05-26 株式会社Ｇｓユアサ 電池

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101562241A (zh) * 2009-06-01 2009-10-21 奇瑞汽车股份有限公司 一种方形锂离子电池极柱防转动装置
CN202142604U (zh) * 2011-07-01 2012-02-08 黄祥盛 止动式电池极柱
CN203481316U (zh) * 2013-09-26 2014-03-12 王文林 动力电池方形极体
JP2016096154A (ja) * 2016-01-15 2016-05-26 株式会社Ｇｓユアサ 電池

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