WO2019227460A1 - 表面免焊接顶盖组装工艺 - Google Patents

表面免焊接顶盖组装工艺 Download PDF

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Publication number
WO2019227460A1
WO2019227460A1 PCT/CN2018/089513 CN2018089513W WO2019227460A1 WO 2019227460 A1 WO2019227460 A1 WO 2019227460A1 CN 2018089513 W CN2018089513 W CN 2018089513W WO 2019227460 A1 WO2019227460 A1 WO 2019227460A1
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WIPO (PCT)
Prior art keywords
conductive
top cover
ring
riveting
plate
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PCT/CN2018/089513
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English (en)
French (fr)
Inventor
王四生
王有生
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深圳市瑞德丰精密制造有限公司
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Priority to PCT/CN2018/089513 priority Critical patent/WO2019227460A1/zh
Publication of WO2019227460A1 publication Critical patent/WO2019227460A1/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
    • H01M50/10—Primary casings; Jackets or wrappings
    • 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
    • H01M10/04—Construction or manufacture in general
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the invention relates to the technical field of battery top caps, in particular to a surface-free welding top cap assembly process.
  • Lithium batteries include a case, a top cover, and a battery cell.
  • the battery cell is placed inside the case.
  • the upper end of the case has an upper opening.
  • the top cover closes the opening at the upper end of the case.
  • the two ends of the top cover pass through.
  • There are electrode posts, and the electrode posts are connected to the battery core in the casing through the conductive sheet to realize power supply to the outside.
  • the surface welding-free top cover assembly process proposed by the present invention aims to solve the problems of low efficiency and poor quality of the battery top cover assembled by welding in the prior art.
  • the present invention is implemented in such a manner that a surface-free welding top cover assembly process provides a top cover plate, a first conductive block, and a second conductive block;
  • the two sides of the top cover plate respectively have a conductive cavity penetrating the top cover plate, the top cover plate has an upper end portion facing away from the battery interior, and the upper end portions of the top cover plate are respectively provided with riveting rings.
  • the riveting rings are respectively arranged around the outer periphery of the upper opening of the conductive cavity, and the riveting rings surround a conductive groove forming a conductive cavity;
  • the surface welding-free top cover assembly process includes the following steps:
  • An insulating plastic is wrapped around the periphery of the first conductive block, and a conductive plastic is wrapped around the periphery of the second conductive block; a sealing ring is respectively placed at the bottom of the two conductive grooves, and the package is wrapped.
  • a first conductive block provided with insulating plastic and a second conductive block provided with conductive plastic are respectively placed in two conductive grooves; the first conductive block and the second conductive block respectively abut a seal ring in the conductive groove; The first conductive block is isolated from the sidewall and the bottom of the conductive groove, and the conductive plastic abuts the sidewall or the bottom of the conductive groove;
  • An outer plastic ring is respectively wrapped or assembled on the outer periphery of the two riveting rings, and the outer plastic ring is wrapped around the riveting ring and respectively abuts against the first conductive block and the second conductive block.
  • the top cover plate includes a conductive plate and an insulating plate arranged in a stack, and the conductive plate and the insulating plate are fastened and fixed through a snap connection; the conductive plate has an upper end portion facing away from the inside of the battery, The riveting ring is formed at an upper end portion of the conductive plate.
  • two sides of the conductive plate have conductive through holes penetrating through the conductive plate
  • two sides of the insulating plate have insulating through holes penetrating through the insulating plate
  • the conductive through holes and the insulation Through-holes are aligned and communicated to form a conductive cavity of the top cover plate
  • an insulating ring extends upward from a side wall of the insulating through-hole; during the process of overlapping and fixing the conductive plate and the insulating plate, the insulating ring passes through The conductive vias extend to the bottom of the conductive groove.
  • the conductive plate and the riveting ring are integrally formed.
  • step (2) the When the first conductive block and the second conductive block are respectively placed in the two conductive grooves, the first conductive pillar and the second conductive pillar are respectively embedded in the two through-holes.
  • the outer plastic ring covers the bent portion of the riveting ring and abuts on the outer periphery of the conductive block.
  • step (4) the outer plastic ring is in a molten state, and the molten outer plastic ring is wrapped around the riveted ring by injection molding.
  • step (4) the outer plastic ring is a solid assembly accessory.
  • step (4) the tightness of the battery top cover is tested.
  • the surface-free welding top cover assembly process provided by the present invention directly installs and cooperates with each component when installing the battery top cover, and passes the first conductive block and the second conductive block through a riveting ring Direct riveting and fixing does not require additional welding operations and reduces process steps.
  • the conductive block fixed by riveting has a good sealing effect, no welding seams, and more stable installation, which greatly improves production efficiency.
  • the problems of low efficiency and poor quality of the battery top cover assembled by welding in the prior art are solved.
  • FIG. 1 is a schematic diagram of process steps of a surface-free welding top assembly assembly process according to an embodiment of the present invention
  • FIG. 2 is a schematic perspective view of a three-dimensional structure of a battery top cover in a surface-free welding top cover assembly process according to an embodiment of the present invention
  • FIG. 3 is an exploded schematic view of a battery top cover in a surface-free welding top cover assembly process according to an embodiment of the present invention
  • FIG. 4 is a schematic cross-sectional view of a battery top cover of a surface-free welding top cover assembly process according to an embodiment of the present invention
  • FIG. 5 is a partially enlarged schematic cross-sectional view of a battery top cover in a surface welding-free top cover assembly process according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a specific process step of a battery top cover in a surface welding-free top cover assembly process according to an embodiment of the present invention.
  • the surface-free welding top cover assembly process provided by the embodiment of the present invention is used to assemble various components in the battery top cover without welding, the process is simple, and the production efficiency is high.
  • the surface-free welding top cover assembly process provided in the embodiment of the present invention provides a top cover plate 11, a first conductive block 121, and a second conductive block 122;
  • the two sides of the top cover plate 11 each have a conductive cavity 1122 penetrating through the top cover plate 11, the top cover plate 11 has an upper end portion facing away from the battery interior, and the upper end portions on both sides of the top cover plate 11 are respectively provided with riveting rings, two The riveting rings are respectively arranged around the outer periphery of the upper opening of the conductive cavity 1122, and the riveting rings surround the conductive grooves forming the conductive cavity 1122;
  • the surface welding-free top cover assembly process includes the following steps:
  • An insulating plastic 131 is wrapped around the periphery of the first conductive block 121, and a conductive plastic 132 is wrapped around the periphery of the second conductive block 122. Sealing rings 15 are respectively placed at the bottoms of the two conductive grooves, The first conductive block 121 of the insulating plastic 131 and the second conductive block 122 enclosing the conductive plastic 132 are respectively placed in two conductive grooves; the first conductive block 121 and the second conductive block 122 respectively abut the seal ring in the conductive groove. 15; the insulating plastic 131 isolates the first conductive block 121 from the sidewall and the bottom of the conductive groove, and the conductive plastic 132 abuts the sidewall or the bottom of the conductive groove;
  • the outer plastic ring 14 is respectively wrapped or assembled on the outer periphery of the two riveting rings 1111.
  • the outer plastic ring 14 is wrapped with the riveting ring 1111, and respectively abuts against the first conductive block 121 and the second conductive block 122 to obtain Battery top cover.
  • the outer periphery of the first conductive block 121 is convexly provided with a first conductive stage 1211 arranged around it
  • the outer periphery of the second conductive block 122 is convexly provided with a second conductive stage 1221 arranged around it
  • An insulating plastic 131 is provided, and a conductive plastic 132 is wrapped around the periphery of the second conductive stage 122.
  • the various components are directly installed and matched, and the first conductive block 121 and the second conductive block 122 are directly riveted and fixed by the riveting ring 1111, which eliminates the need for additional welding operations and reduces After the process steps, the conductive block fixed by riveting has a good sealing effect, there is no welding seam, and the installation is more stable, which greatly improves the production efficiency.
  • the top cover plate 11 includes a conductive plate 111 and an insulating plate 112 which are arranged in a superposed manner, and the conductive plate 111 and the insulating plate 112 are fastened and fixed by a snap connection; the conductive plate 111 has an upper end facing away from the battery interior, The riveting ring is formed on the upper end of the conductive plate 111, that is, when the top cover plate 11 is installed, the conductive plate 111 and the insulating plate 112 are also superimposed and connected by a buckle to stabilize the connection. At the same time, the conductive groove is placed at the same time.
  • the upper end of the conductive plate 111 is such that when the first conductive block 121 is installed in the conductive groove, the insulating plastic 131 and the sealing ring 15 at the bottom of the first conductive block 121 are placed on the first conductive block 121 and the conductive plate 111 In this way, the first conductive block 121 is electrically isolated from the conductive plate 111; and when the second conductive block 122 is installed in the conductive groove, the conductive plastic 132 and the sealing ring 15 at the bottom of the second conductive block 122 are placed in the second Between the conductive block 122 and the conductive plate 111, the second conductive block 122 and the conductive plate 111 are electrically connected, so that the first conductive block 121 and the second conductive block 122 are electrically isolated to avoid a short circuit.
  • the buckle is a hook formed on the lower end of the conductive plate 111 and extending downward, and a bayonet formed on the insulating plate 112.
  • the hook extends into the card And the bent portion of the hook abuts the lower end portion of the insulating plate 112, so that the two are stably overlapped and connected.
  • two sides of the conductive plate 111 have conductive through holes penetrating through the conductive plate 111, and two sides of the insulating plate 112 have insulating through holes penetrating through the insulating plate 112.
  • the conductive through holes are in communication with the insulating through holes to form a top cover plate.
  • the conductive plate 111 and the riveting ring 1111 are integrally formed, that is, the given conductive plate 111 is directly pier-formed and the above-mentioned riveting ring 1111 is obtained, so that between the riveting ring 1111 and the conductive plate 111 There are no gaps, good tightness, and stronger.
  • the bottom of the first conductive block 121 is protruded downward to form a first conductive post 1212
  • the bottom of the second conductive block 122 is protruded downward to form a second conductive post.
  • the first conductive block is When the blocks 121 and the second conductive blocks 122 are respectively placed in the corresponding two conductive grooves, the first conductive posts 1212 and the second conductive posts are respectively embedded in the two through-insulation holes. In this way, during the installation process, It is convenient for the first conductive block 121 or the second conductive block 122 to be installed in the conductive groove for positioning and fixing, which speeds up the installation speed and has high efficiency.
  • the outer periphery of the conductive plastic 132 and the insulating plastic 131 abuts the inside of the crimping ring 1111, which facilitates the alignment of the first conductive block 121 and the second conductive block 122, and facilitates fast installation.
  • the above-mentioned sealing ring 15 is placed on the outer periphery of the insulating ring 1121 during the installation, that is, when the conductive plate 111 and the insulating plate 112 are installed, the insulating pillar part protrudes from the groove bottom of the conductive groove to facilitate the installation of the sealing ring 15 in alignment.
  • the conductive plastic 132 and the insulating plastic 131 are placed on the outer periphery of the sealing ring 15 after the installation is completed, so as to be placed smoothly with the first conductive block 121 or the second conductive block 122.
  • the outer plastic ring 14 covers the bent portion of the riveting ring 1111 and abuts on the outer periphery of the conductive block, so that the connecting portion of the conductive block and the riveting ring 1111 is tightly sealed to prevent liquid leakage.
  • step (4) the outer plastic ring 14 is molten, and the molten outer plastic ring is wrapped around the riveting ring 1111 by injection molding, so that the conductive block and the top cover The plate 11 is more tightly fixed, improves the tightness, and can evenly wrap the conductive block and the riveting ring 1111.
  • the outer plastic ring 14 is a solid assembly component, that is, the solid conductive outer plastic ring 14 can be directly fastened and fixed to the conductive block and the riveting ring 1111. When installing the battery top cover, it has high efficiency and speed.
  • step (4) the tightness of the battery top cover is tested to ensure that the battery top cover is well sealed to avoid leakage.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

一种表面免焊接顶盖组装工艺，顶盖板（11）的两侧具有贯穿顶盖板（11）的导电腔（1122），顶盖板（11）两侧的上端部设有铆压环（1111），两个所述铆压环（1111）分别环绕导电腔（1122）的上部开口的外周布置，将第一导电块（121）、第二导电块（122）通过铆压环（1111）直接铆压固定。

Description

表面免焊接顶盖组装工艺 技术领域
本发明涉及电池顶盖的技术领域，尤其是表面免焊接顶盖组装工艺。
 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，顶盖则封闭在壳体的上端的开口，顶盖的两端穿设有电极柱，电极柱通过导电片与壳体内的电芯连接，以实现对外部进行供电。
然而现有技术中，在组装电池顶盖时，会将铆接片铆接在导电块外周，并将铆接片焊接固定在顶盖的两侧，从而实现导电块固定在顶盖的两侧，这样，通过焊接固定的铆接片往往会存在焊隙，即密封不完全，在使用过程中容易造成漏液，并且焊接工艺复杂，生产效率低下。
 技术问题
本发明提出的表面免焊接顶盖组装工艺，旨在解决现有技术中通过焊接组装的电池顶盖效率低并且品质差的问题。
 技术解决方案
本发明是这样实现的，表面免焊接顶盖组装工艺，提供顶盖板、第一导电块、第二导电块；
所述顶盖板的两侧分别具有贯穿顶盖板的导电腔，所述顶盖板具有背离电池内部的上端部，所述顶盖板两侧的上端部分别凸设有铆压环，两个所述铆压环分别环绕所述导电腔的上部开口的外周布置，且所述铆压环包围形成连通导电腔的导电槽；
表面免焊接顶盖组装工艺包括以下步骤：
（1）在所述第一导电块的外周环绕包设绝缘塑胶，在所述第二导电块的外周环绕包设导电塑胶；在两个所述导电槽的底部分别放入密封圈，将包设绝缘塑胶的第一导电块以及包设导电塑胶的第二导电块分别放置在两个导电槽内；第一导电块以及第二导电块分别抵接着导电槽内的密封圈；绝缘塑胶将所述第一导电块与导电槽的侧壁和底部隔离，导电塑胶抵接着导电槽的侧壁或底部；
（3）将两个所述铆压环分别进行弯折铆压，使两个铆压环的弯折部分分别压设在所述绝缘塑胶上以及所述导电塑胶上；
（4）在两个所述铆压环外周分别包设或装配外塑胶环，所述外塑胶环包裹着铆压环，且分别对应抵接着第一导电块及第二导电块。
进一步地，所述顶盖板包括叠合布置的导电板以及绝缘板，将所述导电板与所述绝缘板通过卡扣连接进行叠合固定；所述导电板具有背离电池内部的上端部，所述铆压环形成在所述导电板的上端部。
进一步地，所述导电板的两侧分别具有贯通所述导电板的导电通孔，所述绝缘板的两侧分别具有贯通所述绝缘板的绝缘通孔，所述导电通孔与所述绝缘通孔对齐连通，形成所述顶盖板的导电腔；所述绝缘通孔的侧壁朝上延伸有绝缘环；在导电板与绝缘板叠合固定的过程中，所述绝缘环穿过所述导电通孔，并延伸至所述导电槽的底部。
进一步地，所述导电板与所述铆压环一体成型。
进一步地，所述第一导电块的底部朝下凸设形成第一导电凸柱，所述第二导电块的底部朝下凸设形成第二导电凸柱，在步骤（2）中，将所述第一导电块以及第二导电块分别对应放入两个所述导电槽内时，所述第一导电凸柱以及第二导电凸柱分别嵌入两个所述绝缘通孔内。
进一步地，所述外塑胶环覆盖在所述铆压环的弯折部分，并抵接在所述导电块外周。
进一步地，所述铆压环的弯折部分与所述导电块之间具有铆压间隙，所述外塑胶环向下延伸形成嵌入所述铆压间隙的填充部分。
进一步地，在步骤（4）中，所述外塑胶环为熔融状，通过注塑成型将熔融状的所述外塑胶环包裹住所述铆压环。
进一步地，在步骤（4）中，所述外塑胶环为固体的组装配件。
进一步地，在步骤（4）后，对所述电池顶盖的密封性进行检测。
 有益效果
与现有技术相比，本发明提供的表面免焊接顶盖组装工艺，在安装电池顶盖时，直接将各个部件进行安装配合，并且，将第一导电块以及第二导电块通过铆压环直接铆压固定，不再需要额外的焊接操作，减少了工艺步骤，通过铆压固定的导电块，密封效果好，不会存在焊缝，安装也更加稳定，极大的提高了生产效率。解决了现有技术中通过焊接组装的电池顶盖效率低并且品质差的问题。
 附图说明
图1是本发明实施例提供的表面免焊接顶盖组装工艺的工艺步骤示意图；
图2是本发明实施例提供的表面免焊接顶盖组装工艺的电池顶盖的立体结构示意图；
图3是本发明实施例提供的表面免焊接顶盖组装工艺的电池顶盖的爆炸示意图；
图4是本发明实施例提供的表面免焊接顶盖组装工艺的电池顶盖的剖面示意图；
图5是本发明实施例提供的表面免焊接顶盖组装工艺的电池顶盖的剖面局部放大示意图；
图6是本发明实施例提供的表面免焊接顶盖组装工艺的电池顶盖的具体的工艺步骤示意图。
 本发明的实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明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发明，并不用于限定本发明。
以下结合具体实施例对本发明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；在本发明的描述中，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发明和简化描述，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至6所示，为本发明提供的较佳实施例。
本发明实施例提供的表面免焊接顶盖组装工艺，用于将电池顶盖内的各个组件组装好，无需焊接，工艺简单，生产效率高。
本发明实施例给出的表面免焊接顶盖组装工艺，提供顶盖板11、第一导电块121、第二导电块122；
顶盖板11的两侧分别具有贯穿顶盖板11的导电腔1122，顶盖板11具有背离电池内部的上端部，顶盖板11两侧的上端部分别凸设有铆压环，两个铆压环分别环绕导电腔1122的上部开口的外周布置，且铆压环包围形成连通导电腔1122的导电槽；
表面免焊接顶盖组装工艺包括以下步骤：
（1）在第一导电块121的外周环绕包设绝缘塑胶131，在第二导电块122的外周环绕包设导电塑胶132；在两个导电槽的底部分别放入密封圈15，将包设绝缘塑胶131的第一导电块121以及包设导电塑胶132的第二导电块122分别放置在两个导电槽内；第一导电块121以及第二导电块122分别抵接着导电槽内的密封圈15；绝缘塑胶131将第一导电块121与导电槽的侧壁和底部隔离，导电塑胶132抵接着导电槽的侧壁或底部；
（3）将两个铆压环1111分别进行弯折铆压，使两个铆压环1111的弯折部分分别压设在绝缘塑胶131上以及导电塑胶132上；
（4）在两个铆压环1111外周分别包设或装配外塑胶环14，外塑胶环14包裹着铆压环1111，且分别对应抵接着第一导电块121及第二导电块122，得到电池顶盖。
具体的，第一导电块121的外周凸设有环绕布置第一导电台1211，第二导电块122的外周凸设有环绕布置的第二导电台1221；在第一导电台121的外周环绕包设绝缘塑胶131，在第二导电台122的外周环绕包设导电塑胶132。
这样，在安装电池顶盖时，直接将各个部件进行安装配合，并且，将第一导电块121以及第二导电块122通过铆压环1111直接铆压固定，不再需要额外的焊接操作，减少了工艺步骤，通过铆压固定的导电块，密封效果好，不会存在焊缝，安装也更加稳定，极大的提高了生产效率。
本实施例中，顶盖板11包括叠合布置的导电板111以及绝缘板112，将导电板111与绝缘板112通过卡扣连接进行叠合固定；导电板111具有背离电池内部的上端部，铆压环形成在导电板111的上端部，即在安装顶盖板11时，也直接将导电板111与绝缘板112叠合通过卡扣相连，以稳定连接，同时，上述导电槽是置于导电板111的上端部的，这样，在将第一导电块121安设进导电槽中时，第一导电块121底部的绝缘塑胶131以及密封圈15置于第一导电块121与导电板111之间，使第一导电块121与导电板111电性隔绝；而将第二导电块122安设进导电槽中时，第二导电块122底部的导电塑胶132以及密封圈15置于第二导电块122与导电板111之间，使第二导电块122与导电板111电性导通，这样第一导电块121与第二导电块122是电性隔绝的，以避免短路。
具体的，上述卡扣为形成在导电板111的下端部并朝下延伸的卡钩，以及形成在绝缘板112上的卡口，导电板111与绝缘板112叠合时，卡钩伸进卡口中，并且卡钩的弯折部分抵接绝缘板112的下端部，从而使二者稳定叠合连接。
并且，导电板111的两侧分别具有贯通导电板111的导电通孔，绝缘板112的两侧分别具有贯通绝缘板112的绝缘通孔，导电通孔与绝缘通孔对齐连通，形成顶盖板11的导电腔1122；绝缘通孔的侧壁朝上延伸有绝缘环1121；在导电板111与绝缘板112叠合固定的过程中，绝缘环1121穿过导电通孔，并延伸至导电槽的底部，这样，在将导电板111与绝缘板112叠合固定时，不仅通过卡扣进行连接，同时将绝缘环1121嵌入进导电通孔中，使导电板111与绝缘板112之间叠合的更加紧密稳定。
本实施例中，导电板111与铆压环1111一体成型，即所给出的导电板111是直接墩压成型并得到上述的铆压环1111的，这样铆压环1111与导电板111之间不会存在间隙，密封性好，并且更加牢固。
此外，第一导电块121的底部朝下凸设形成第一导电凸柱1212，第二导电块122的底部朝下凸设形成第二导电凸柱，在步骤（2）中，将第一导电块121以及第二导电块122分别放入对应的两个导电槽内时，第一导电凸柱1212以及第二导电凸柱分别嵌入两个的绝缘通孔内，这样，在进行安装工艺时，便于第一导电块121或第二导电块122安装在导电槽内进行对位固定，加快了安装速度，效率高。
同时，导电塑胶132以及绝缘塑胶131的外周是抵接着铆压环1111的内侧的，这样便于对位上述第一导电块121以及第二导电块122，方便快速安装。
上述的密封圈15在安装时是置于绝缘环1121外周的，即导电板111与绝缘板112安装时，绝缘柱部分凸出导电槽的槽底，以便于密封圈15的对位安装，而导电塑胶132以及绝缘塑胶131在安装完成后是置于密封圈15外周的，以便与第一导电块121或第二导电块122的平稳放置。
另外，外塑胶环14覆盖在铆压环1111的弯折部分，并抵接在导电块外周，从而导电块与铆压环1111的连接部分密封紧密，防止漏液。
同时，铆压环1111的弯折部分与导电块之间具有铆压间隙，外塑胶环14向下延伸有嵌入所述铆压间隙的填充部分，通过外塑胶环14的填充部分使电池顶盖的紧密性更好。
在本实施例中，在步骤（4）中，所述外塑胶环14为熔融状，通过注塑成型将熔融状的所述外塑胶环包裹住所述铆压环1111，从而使导电块与顶盖板11固定的更加紧密，提高紧密性，并且，能够均匀的包裹住上述导电块与铆压环1111。
而在其他实施例中，在步骤（4）中，所述外塑胶环14为固体的组装配件，即直接可通过固态的外塑胶环14扣接固定上述导电块与铆压环1111，这样，在安装该电池顶盖时，效率高，速度块。
同时，在步骤（4）后，对电池顶盖的密封性进行检测，以保证电池顶盖密封良好，避免漏液。
以上仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 表面免焊接顶盖组装工艺，其特征在于，提供顶盖板、第一导电块、第二导电块；
    所述顶盖板的两侧分别具有贯穿顶盖板的导电腔，所述顶盖板具有背离电池内部的上端部，所述顶盖板两侧的上端部分别凸设有铆压环，两个所述铆压环分别环绕所述导电腔的上部开口的外周布置，且所述铆压环包围形成连通导电腔的导电槽；
    表面免焊接顶盖组装工艺包括以下步骤：
    （1）在所述第一导电块的外周环绕包设绝缘塑胶，在所述第二导电块的外周环绕包设导电塑胶；在两个所述导电槽的底部分别放入密封圈，将包设绝缘塑胶的第一导电块以及包设导电塑胶的第二导电块分别放置在两个导电槽内；第一导电块以及第二导电块分别抵接着导电槽内的密封圈；绝缘塑胶将所述第一导电块与导电槽的侧壁和底部隔离，导电塑胶抵接着导电槽的侧壁或底部；
    （3）将两个所述铆压环分别进行弯折铆压，使两个铆压环的弯折部分分别压设在所述绝缘塑胶上以及所述导电塑胶上；
    （4）在两个所述铆压环外周分别包设或装配外塑胶环，所述外塑胶环包裹着铆压环，且分别对应抵接着第一导电块及第二导电块。
  2. 如权利要求1所述的表面免焊接顶盖组装工艺，其特征在于，所述顶盖板包括叠合布置的导电板以及绝缘板，将所述导电板与所述绝缘板通过卡扣连接进行叠合固定；所述导电板具有背离电池内部的上端部，所述铆压环形成在所述导电板的上端部。
  3. 如权利要求2所述的表面免焊接顶盖组装工艺，其特征在于，所述导电板的两侧分别具有贯通所述导电板的导电通孔，所述绝缘板的两侧分别具有贯通所述绝缘板的绝缘通孔，所述导电通孔与所述绝缘通孔对齐连通，形成所述顶盖板的导电腔；所述绝缘通孔的侧壁朝上延伸有绝缘环；在导电板与绝缘板叠合固定的过程中，所述绝缘环穿过所述导电通孔，并延伸至所述导电槽的底部。
  4. 如权利要求2所述的表面免焊接顶盖组装工艺，其特征在于，所述导电板与所述铆压环一体成型。
  5. 如权利要求3任一项所述的表面免焊接顶盖组装工艺，其特征在于，所述第一导电块的底部朝下凸设形成第一导电凸柱，所述第二导电块的底部朝下凸设形成第二导电凸柱，在步骤（2）中，将所述第一导电块以及第二导电块分别对应放入两个所述导电槽内时，所述第一导电凸柱以及第二导电凸柱分别嵌入两个所述绝缘通孔内。
  6. 如权利要求1至5任一项所述的表面免焊接顶盖组装工艺，其特征在于，所述外塑胶环覆盖在所述铆压环的弯折部分，并抵接在所述导电块外周。
  7. 如权利要求1至5任一项所述的表面免焊接顶盖组装工艺，其特征在于，所述铆压环的弯折部分与所述导电块之间具有铆压间隙，所述外塑胶环向下延伸形成嵌入所述铆压间隙的填充部分。
  8. 如权利要求7所述的表面免焊接顶盖组装工艺，其特征在于，在步骤（4）中，所述外塑胶环为熔融状，通过注塑成型将熔融状的所述外塑胶环包裹住所述铆压环。
  9. 如权利要求7所述的表面免焊接顶盖组装工艺，其特征在于，在步骤（4）中，所述外塑胶环为固体的组装配件。
  10. 如权利要求1至5任一项所述的表面免焊接顶盖组装工艺，其特征在于，在步骤（4）后，对所述电池顶盖的密封性进行检测。
PCT/CN2018/089513 2018-06-01 2018-06-01 表面免焊接顶盖组装工艺 WO2019227460A1 (zh)

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