WO2019195985A1 - 具有多种保护机制的电池顶盖 - Google Patents

具有多种保护机制的电池顶盖 Download PDF

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Publication number
WO2019195985A1
WO2019195985A1 PCT/CN2018/082374 CN2018082374W WO2019195985A1 WO 2019195985 A1 WO2019195985 A1 WO 2019195985A1 CN 2018082374 W CN2018082374 W CN 2018082374W WO 2019195985 A1 WO2019195985 A1 WO 2019195985A1
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WO
WIPO (PCT)
Prior art keywords
battery
battery cover
conductive
power
hole
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PCT/CN2018/082374
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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
Priority to PCT/CN2018/082374 priority Critical patent/WO2019195985A1/zh
Publication of WO2019195985A1 publication Critical patent/WO2019195985A1/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
    • 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 battery top cover, in particular to a battery top cover with various protection mechanisms.
  • Lithium batteries are Its high capacity and other excellent characteristics are widely used in electronic products.
  • the lithium battery includes a casing, a battery top cover, 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 battery top cover is closed at an opening of the upper end of the casing, and the battery 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 battery cover is provided with a rupture disc, a flipper or a broken piece. Electric protection sheet to prevent danger.
  • the protection mechanism carried by the battery cover currently provided is generally one or two of the above, so that if the structure of the protection mechanism is damaged during a long period of use, the internal pressure of the battery is extremely high. Dangerous.
  • the battery top cover with multiple protection mechanisms proposed by the utility model aims to solve the problem that the battery top cover has a limited protection mechanism for the battery in the prior art, and the battery cannot be fully protected.
  • the utility model is realized by the battery top cover having a plurality of protection mechanisms, comprising a battery cover plate and an insulation plate overlapping with the lower end portion of the battery cover plate, the battery cover plate and the two ends of the insulation plate a first electrode column and a second electrode column are respectively disposed, the first electrode column has a first conductive block electrically connected to the first electrode column at an upper end portion of the battery cover, the first conductive The block and the first electrode post and the battery cover are electrically insulated by a first cover film, the first cover film is provided with a flip through hole, and the battery cover is provided opposite to the flip pass a rotating sheet of the hole; the second electrode column is electrically connected to the battery cover, and the lower end portion of the second electrode column has a second conductive sheet electrically connected to the battery core inside the battery, The second electrode post is electrically connected to the second conductive sheet through a power-off protection sheet, and the second conductive sheet has a second connecting piece fixedly welded to the power-off protection sheet; Bursting piece.
  • the battery cover plate and the insulating plate are formed with an inverted placement hole facing the inverted through hole, and an outer edge of the flip sheet is fixed between the battery cover and the insulating plate.
  • the insulating plate is formed with a second pole through hole
  • the second conductive sheet is upwardly convexly formed with a second conductive tab
  • the second conductive tab is embedded in the second pole through hole
  • the connecting piece is formed in the second conductive tab, and the second conductive tab and the second connecting piece have a plurality of annular grooves, and the second conductive tab and the first The two connecting pieces are electrically connected by the second conductive ribs.
  • the power-off protection sheet includes an outer edge for soldering and a power-off bump connected to the outer edge through the power-off sheet, and the outer edge of the power-off protection sheet is fixedly soldered to the first The lower end portion of the two electrode columns, the power-off bump of the power-off protection sheet is soldered to the second connecting piece.
  • the second connecting piece is formed with a power-off through hole facing the power-off protrusion of the power-off protection piece, and the power-off protrusion of the power-off protection piece is embedded in the power-off hole .
  • the outer circumference of the lower end of the second electrode column has a second electrode protrusion, and the second electrode protrusion is electrically connected to the battery cover through the annular conductive block.
  • a middle portion of the battery cover is formed with a blasting through hole, the rupture disc is located at the blasting through hole, and an outer edge of the rupture disc is fixedly welded to a lower end portion of the battery cover.
  • the insulating plate is formed with a plurality of mesh holes at the position of the rupture disc.
  • the lower end portion of the first electrode column has a first conductive sheet electrically connected to the battery cell inside the battery, and the insulating plate is formed with a first pole through hole, The first conductive sheet is upwardly convexly formed with a first conductive tab, and the first conductive tab is embedded in the first pole through hole and abuts the first electrode column.
  • first conductive block is integrally formed with the first electrode column.
  • the battery top cover provided by the utility model has a plurality of protection mechanisms, and when the battery top cover is provided with a flipping piece, a rupture disk and a power-off protection piece, when the gas pressure inside the battery is excessively large, When it cannot be discharged in time, the power-off protection sheet is turned over to disengage the second connecting piece from the second conductive piece, so that an open circuit is formed between the second conductive piece and the second connecting piece, and an internal circuit is broken, and the operation is stopped to prevent the internal reaction of the battery from continuing.
  • the flipping piece is turned upside down, so that the battery cover plate and the first conductive block are electrically connected, and a short circuit is formed between the first electrode column and the second electrode column to prevent direct disconnection of the battery inside, thereby causing malfunction of the electrical appliance, and blasting
  • the blasting of the film releases the gas, so that the three protection mechanisms work together to protect the battery and protect the external electrical appliances, which greatly improves the safety of the battery.
  • the problem that the protection mechanism of the battery cover on the battery in the prior art is limited cannot fully protect the battery.
  • FIG. 1 is a schematic perspective view of a battery top cover having multiple protection mechanisms according to an embodiment of the present invention
  • FIG. 2 is a schematic perspective view of a battery top cover having multiple protection mechanisms according to an embodiment of the present invention
  • FIG. 3 is a schematic exploded view of a battery top cover having multiple protection mechanisms according to an embodiment of the present invention
  • FIG. 4 is a schematic cross-sectional view of a battery top cover having multiple protection mechanisms according to an embodiment of the present invention
  • FIG. 5 is a partially enlarged cross-sectional view showing a first electrode column of a battery top cover having various protection mechanisms according to an embodiment of the present invention
  • FIG. 6 is a partially enlarged cross-sectional view showing a second electrode column of a battery top cover having various protection mechanisms according to an embodiment of the present invention.
  • the battery top cover with multiple protection mechanisms provided by the embodiments of the present invention has three kinds of structures when the gas pressure inside the battery is excessively large by providing the rupture disc 112, the inverting piece 111 and the power-off protection piece 113 on the battery top cover. Protecting the battery greatly increases the safety of the battery.
  • the battery cover 11 and the insulating panel 12 are formed with an inverted placement hole facing the through hole, and the outer edge of the flipping sheet 111 is fixed between the battery cover 11 and the insulating panel 12, such that When the internal gas pressure of the battery is too large, the flipping piece 111 is lifted up, so that the middle portion of the flipping piece 111 abuts the first conductive block 1311, and the battery cover 11 and the first conductive piece 141 are electrically connected. .
  • the insulating plate 12 is formed with a second pole through hole
  • the second conductive sheet 142 is upwardly formed with a second conductive tab 1421
  • the second conductive tab 1421 is embedded in the second pole through hole for the second
  • the electrode post 132 is electrically connected to the second conductive sheet 142 through the power-off protection sheet 113.
  • the second electrode protrusion 132 has a second electrode protrusion on the outer circumference of the lower end, and the second electrode protrusion is electrically connected to the battery cover 11 through the annular conductive block 1321, so that the second electrode column 132 is directly placed on the battery.
  • the upper end portion of the top cover does not need to be embedded and fixed from the lower end portion of the battery top cover, which makes assembly and fixing of the second electrode post 132 easier.
  • the second conductive sheet structure described above when the battery is operated, when the current of the battery is too large, the second conductive rib is melted, and the second conductive tab 1421 is disconnected from the second connecting piece 1422, so that the inside of the battery is formed. Open the circuit to prevent the danger of explosion due to excessive current in the battery.
  • a second protective cover 15 is disposed under the second conductive sheet 142, and a gap is formed between the second protective cover 15 and the second conductive piece 142, and the second protective cover 15 is fixed on the insulating plate 12, so that when conductive When the sheet is blown, the metal chips will drip onto the second protective cover 15 to prevent the blown liquid from flowing into the battery and affecting the reaction occurring inside the battery.
  • the second protection cover 15 is also formed with a through hole at a position facing the power interruption through hole, so that the gas enters from the through hole of the second protection cover 15 to jack up the power failure protrusion of the power failure protection piece 113, thereby realizing Battery protection.
  • a blasting through hole is formed in the middle of the battery cover 11, the rupture disc 112 is located at the blasting through hole, and the outer edge of the rupture disc 112 is fixedly welded to the lower end portion of the battery cover 11 to stably fix the rupture disc 112.
  • the insulating plate 12 is formed with a plurality of mesh holes 121 at the position of the rupture disc 112, thereby facilitating the passage of gas inside the battery from the mesh holes 121 to facilitate the discharge of gas.
  • the lower end portion of the first electrode post 131 has a first conductive sheet 141 electrically connected to the battery cell inside the battery, and the insulating plate 12 is formed with a first pole through hole.
  • the first conductive strip 141 is upwardly convexly formed with a first conductive tab 1411.
  • the first conductive tab 1411 is embedded in the first pole through hole and abuts the first electrode post 131, so that the first electrode post 131 is directly placed.
  • the first conductive block 1311 is integrally formed with the first electrode post 131, and has a first electrode protrusion on the outer circumference of the lower end portion of the first electrode post 131, and the first electrode protrusion is connected to the first conductive block 1311.
  • the first conductive film 1311 and the upper end portion of the first electrode post 131 are fastened by the first cover film 161, thereby fixing the first electrode post 131 and the first conductive block 1311.
  • a first pressing piece 171 is also disposed on the outer periphery of the first wrapping film 161, and is fixedly attached to the battery cover 11 by the first pressing piece 171 to achieve stable fixing of the first electrode post 131. .

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

Abstract

一种具有多种保护机制的电池顶盖，包括电池盖板（11）以及与电池盖板下端部叠合的绝缘板（12），电池盖板以及绝缘板的两端分别设有第一电极柱（131）以及第二电极柱（132），第一电极柱具有与第一电极柱电性连接的第一导电块（1311），第一导电块以及第一电极柱与电池盖板之间通过第一包胶片（161）电性隔绝，第一包胶片开设有翻转通孔，电池盖板设有正对翻转通孔的翻转片（111）；第二电极柱与第二导电片（142）通过断电保护片（113）电性连接，第二导电片具有与断电保护片焊接的第二连接片（1422）；电池盖板的中部设有爆破片（111）。在电池顶盖上设有翻转片、爆破片以及断电保护片，通过三种保护机制，既保护了电池，同时也保护了外部正在使用的电器，提高了电池的安全性。

Description

具有多种保护机制的电池顶盖 技术领域
本实用新型涉及电池顶盖的技术领域，尤其是具有多种保护机制的电池顶盖。
 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、电池顶盖以及电芯等，其中电芯置于壳体的内部，壳体的上端具有上端开口，电池顶盖则封闭在壳体的上端的开口，电池顶盖上设置有导电块，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。
然而在锂电池的使用过程中，锂电池的内部会产生气体，如果内部气体过多再继续使锂电池工作的话则极容易发生危险，一般在电池顶盖上设有爆破片、翻转片或断电保护片，以防止发生危险。
但是，目前所给出的电池顶盖所携带的保护机制一般是上述一种或两种，这样，在长时间的使用过程中，若保护机制的结构损坏，电池内部气压过大时则极容易发生危险。
 技术问题
本实用新型提出的具有多种保护机制的电池顶盖，旨在解决现有技术中电池顶盖对电池的保护机制方式有限不能充分起到保护电池的问题。
 技术解决方案
本实用新型是这样实现的，具有多种保护机制的电池顶盖，包括电池盖板以及与所述电池盖板下端部叠合的绝缘板，所述电池盖板以及所述绝缘板的两端分别设有第一电极柱以及第二电极柱，所述第一电极柱在所述电池盖板的上端部具有与所述第一电极柱电性连接的第一导电块，所述第一导电块以及所述第一电极柱与所述电池盖板之间通过第一包胶片电性隔绝，所述第一包胶片开设有翻转通孔，所述电池盖板设有正对所述翻转通孔的翻转片；所述第二电极柱与所述电池盖板电性导通，所述第二电极柱的下端部具有与电池内部的电芯电性连接的第二导电片，所述第二电极柱与所述第二导电片通过断电保护片电性连接，所述第二导电片具有与所述断电保护片固定焊接的第二连接片；所述电池盖板的中部设有爆破片。
进一步地，所述电池盖板以及所述绝缘板形成有正对所述翻转通孔的翻转放置孔，所述翻转片的外边缘固定在所述电池盖板以及所述绝缘板之间。
进一步地，所述绝缘板形成有第二极柱通孔，所述     第二导电片向上凸起形成有第二导电凸片，所述第二导电凸片嵌入所述第二极柱通孔中，所述连接片则形成在所述第二导电凸片内，所述第二导电凸片与所述第二连接片之间具有多个环形槽，所述第二导电凸片与所述第二连接片之间通过第二导电筋电性连接。
进一步地，所述断电保护片包括有用于焊接固定的外边缘以及与外边缘之间通过断电片体连接的断电凸起，所述断电保护片的外边缘固定焊接在所述第二电极柱的下端部，所述断电保护片的断电凸起与所述第二连接片焊接连接。
进一步地，所述第二连接片形成有正对所述断电保护片的断电凸起的断电通孔，所述断电保护片的断电凸起嵌入所述断电通孔之中。
进一步地，所述第二电极柱的下端外周具有第二电极凸起，所述第二电极凸起通过环形导电块与所述电池盖板电性连接。
进一步地，所述电池盖板的中部形成有爆破通孔，所述爆破片位于所述爆破通孔处，并且所述爆破片的外边缘固定焊接在所述电池盖板的下端部。
进一步地，所述绝缘板在所述爆破片的位置形成有多个网状孔。
进一步地，所述第一电极柱的下端部具有与电池内部的电芯电性连接的第一导电片，所述绝缘板形成有第一极柱通孔，所述  第一导电片向上凸起形成有第一导电凸片，所述第一导电凸片嵌入所述第一极柱通孔中并与所述第一电极柱抵接。
进一步地，所述第一导电块与所述第一电极柱一体成型。
 有益效果
与现有技术相比，本实用新型提供的具有多种保护机制的电池顶盖，通过在电池顶盖上设有翻转片、爆破片以及断电保护片，在电池内部的气体压力过大时，无法及时排出时，断电保护片翻转将第二连接片脱离第二导电片，使第二导电片与第二连接片之间形成断路，电池内部发生断路，停止工作防止电池内部继续反应，这时翻转片向上翻转，使电池盖板与第一导电块电性导通，第一电极柱与第二电极柱之间形成短路，防止电池内部直接断路而使使用电器发生故障，并且，爆破片爆破，将气体放出，这样，通过三种保护机制的共同工作，既保护了电池，同时也保护了外部正在使用的电器，极大的提高了电池的安全性。解决了现有技术中电池顶盖对电池的保护机制方式有限不能充分起到保护电池的问题。
 附图说明
图1是本实用新型实施例提供的具有多种保护机制的电池顶盖的立体结构示意图；
图2是本实用新型实施例提供的具有多种保护机制的电池顶盖的立体结构示意图；
图3是本实用新型实施例提供的具有多种保护机制的电池顶盖的分解结构示意图；
图4是本实用新型实施例提供的具有多种保护机制的电池顶盖的全剖示意图；
图5是本实用新型实施例提供的具有多种保护机制的电池顶盖的第一电极柱的局部放大剖面示意图；
图6是本实用新型实施例提供的具有多种保护机制的电池顶盖的第二电极柱的局部放大剖面示意图。
 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至图6所示，为本实用新型提供的较佳实施例。
本实用新型实施例提供的具有多种保护机制的电池顶盖，通过在电池顶盖上设置爆破片112、翻转片111以及断电保护片113，在电池内部气体压力过大时，三种结构对电池进行保护，极大地提高了电池的安全性。
本实用新型实施例提供的具有多种保护机制的电池顶盖，包括电池盖板11以及与电池盖板11下端部叠合的绝缘板12，电池盖板11以及绝缘板12的两端分别设有第一电极柱131以及第二电极柱132，第一电极柱131在电池盖板11的上端部具有与第一电极柱131电性连接的第一导电块1311，第一导电块1311以及第一电极柱131与电池盖板11之间通过第一包胶片161电性隔绝，第一包胶片161开设有翻转通孔，电池盖板11设有正对翻转通孔的翻转片111；第二电极柱132与电池盖板11电性导通，第二电极柱132的下端部具有与电池内部的电芯电性连接的第二导电片142，第二电极柱132与第二导电片142通过断电保护片113电性连接，第二导电片142具有与断电保护片142固定焊接的第二连接片1422；电池盖板11的中部设有爆破片112。
这样，通过在电池顶盖上设有翻转片111、爆破片112以及断电保护片113，在电池内部的气体压力过大时，无法及时排出时，断电保护片113翻转将第二连接片1422脱离第二导电片142，使第二导电片与第二连接片1422之间形成断路，电池内部发生断路，停止工作防止电池内部继续发生反应，这时翻转片111向上翻转，使电池盖板11与第一导电块1311电性导通，第一电极柱131与第二电极柱132之间形成短路，防止电池内部直接断路而使使用电气发生故障，并且，爆破片112爆破，将气体放出，这样，通过三种保护机制的共同工作，既保护了电池，同时也保护了外部正在使用的电器，极大的提高了电池的安全性。
为了使翻转片111接触到电池内部，电池盖板11以及绝缘板12形成有正对翻转通孔的翻转放置孔，翻转片111的外边缘固定在电池盖板11以及绝缘板12之间，这样，当电池内部气体压力过大时，会将翻转片111向上顶起，从而使翻转片111的中部与第一导电块1311抵接，实现电池盖板11与第一导电片141电性导通。
本实施例中，电池盖板11的下端部形成有固定翻转片111的外边缘的翻转槽，翻转片111的外边缘固定焊接在电池盖板11下端部的翻转槽中，并且通过绝缘板12的上端部抵接翻转片111的外边缘，从而使翻转片111稳定固定在翻转放置孔的位置。
另外，绝缘板12形成有第二极柱通孔， 第二导电片142向上凸起形成有第二导电凸片1421，第二导电凸片1421嵌入第二极柱通孔中，以便于第二电极柱132通过断电保护片113与第二导电片142电性导通。
本实施例中，在第二导电凸片1421的上端部内形成有第二连接片1422，第二导电凸片1421与第二连接片1422之间具有环形槽，并且第二导电凸片1421与第二连接片1422之间通过第二导电筋电性连接，这样，在断电保护片113向上翻转时，更易拧断第二连接片1422实现断路。
并且，断电保护片113包括有用于焊接固定的外边缘以及与外边缘之间通过断电片体连接的断电凸起，断电保护片113的外边缘固定焊接在第二电极柱132的下端部，断电保护片113的断电凸起与第二连接片1422焊接连接，这样在气体压力过大时，断电保护片113的断电凸起向上翻转，将第二连接片1422从第二导电片142上拧断，使第二导电片142与第二连接片1422断开，第二电极柱132与第二导电片142电性隔绝，实现断路。
这样，为了使断电保护片113的置于电池内部，以便于电池内部的气体将断电保护片113顶起，在第二连接片1422形成有正对断电保护片113的断电凸起的断电通孔，断电保护片113的断电凸起嵌入断电通孔之中，并与第二连接片1422焊接，气体压力过大时，将第二连接片1422从第二导电片142拧断，实现断路保护电池。
本实施例中，第二电极柱132的下端外周具有第二电极凸起，第二电极凸起通过环形导电块1321与电池盖板11电性连接，这样将第二电极柱132直接置于电池顶盖的上端部，不需要从电池顶盖的下端部内嵌固定，使第二电极柱132的装配以及固定更为容易。
这样，在第二电极柱132以及环形导电块1321的上端部通过扣设有第二包胶片162实现对二者的固定，并且，在第二电极柱132、环形导电块1321以及第二包胶片162的外周扣设有第二压片172，通过第二压片172焊接固定在电池盖板11上实现对第二电极柱132的稳定固定。
另外，同时上述的第二导电片结构，在电池工作时，电池的电流过大时，第二导电筋会熔断，第二导电凸片1421与第二连接片1422断开，使电池的内部形成断路，防止因电池的电流过大而发生爆炸等危险。
并且，在第二导电片142的下方设有第二保护盖15，第二保护盖15与第二导电片142之间具有间隙，第二保护盖15固定在绝缘板12上，这样，当导电片发生熔断时，金属屑会滴流到第二保护盖15上，防止熔断的液体流入到电池内部而对电池内部发生的反应产生影响。
上述的第二保护盖15正对断电通孔的位置也形成有通孔，以便于气体从第二保护盖15的通孔进入从而顶起断电保护片113的断电凸起，实现对电池的保护。
另外，在电池盖板11的中部形成有爆破通孔，爆破片112位于爆破通孔处，并且爆破片112的外边缘固定焊接在电池盖板11的下端部，以稳定固定爆破片112。
这样，绝缘板12在爆破片112的位置形成有多个网状孔121，从而便于电池内部的气体从网状孔121通过，方便排泄气体。
本实施例中，第一电极柱131的下端部具有与电池内部的电芯电性连接的第一导电片141，绝缘板12形成有第一极柱通孔，     第一导电片141向上凸起形成有第一导电凸片1411，第一导电凸片1411嵌入第一极柱通孔中并与第一电极柱131抵接，这样将第一电极柱131直接置于电池顶盖的上端部，不需要从电池顶盖的下端部内嵌固定，使第一电极柱131的装配以及固定更为容易。
同时，第一导电块1311与第一电极柱131一体成型，在第一电极柱131的下端部的外周同样具有第一电极凸起，第一电极凸起则连接这第一导电块1311，这样，通过第一包胶片161扣设在第一导电块1311以及第一电极柱131的上端部，从而固定第一电极柱131以及第一导电块1311。
和第二电极柱132类似，在第一包胶片161的外周也同样设有第一压片171，通过第一压片171焊接固定在电池盖板11上实现对第一电极柱131的稳定固定。
以上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 (10)

  1. 具有多种保护机制的电池顶盖，其特征在于，包括电池盖板以及与所述电池盖板下端部叠合的绝缘板，所述电池盖板以及所述绝缘板的两端分别设有第一电极柱以及第二电极柱，所述第一电极柱在所述电池盖板的上端部具有与所述第一电极柱电性连接的第一导电块，所述第一导电块以及所述第一电极柱与所述电池盖板之间通过第一包胶片电性隔绝，所述第一包胶片开设有翻转通孔，所述电池盖板设有正对所述翻转通孔的翻转片；所述第二电极柱与所述电池盖板电性导通，所述第二电极柱的下端部具有与电池内部的电芯电性连接的第二导电片，所述第二电极柱与所述第二导电片通过断电保护片电性连接，所述第二导电片具有与所述断电保护片固定焊接的第二连接片；所述电池盖板的中部设有爆破片。
  2. 如权利要求1所述的具有多种保护机制的电池顶盖，其特征在于，所述电池盖板以及所述绝缘板形成有正对所述翻转通孔的翻转放置孔，所述翻转片的外边缘固定在所述电池盖板以及所述绝缘板之间。
  3. 如权利要求1所述的具有多种保护机制的电池顶盖，其特征在于，所述绝缘板形成有第二极柱通孔，所述  第二导电片向上凸起形成有第二导电凸片，所述第二导电凸片嵌入所述第二极柱通孔中，所述连接片则形成在所述第二导电凸片内，所述第二导电凸片与所述第二连接片之间具有多个环形槽，所述第二导电凸片与所述第二连接片之间通过第二导电筋电性连接。
  4. 如权利要求3所述的具有多种保护机制的电池顶盖，其特征在于，所述断电保护片包括有用于焊接固定的外边缘以及与外边缘之间通过断电片体连接的断电凸起，所述断电保护片的外边缘固定焊接在所述第二电极柱的下端部，所述断电保护片的断电凸起与所述第二连接片焊接连接。
  5. 如权利要求4所述的具有多种保护机制的电池顶盖，其特征在于，所述第二连接片形成有正对所述断电保护片的断电凸起的断电通孔，所述断电保护片的断电凸起嵌入所述断电通孔之中。
  6. 如权利要求1至5任一项所述的具有多种保护机制的电池顶盖，其特征在于，所述第二电极柱的下端外周具有第二电极凸起，所述第二电极凸起通过环形导电块与所述电池盖板电性连接。
  7. 如权利要求1至5任一项所述的具有多种保护机制的电池顶盖，其特征在于，所述电池盖板的中部形成有爆破通孔，所述爆破片位于所述爆破通孔处，并且所述爆破片的外边缘固定焊接在所述电池盖板的下端部。
  8. 如权利要求7所述的具有多种保护机制的电池顶盖，其特征在于，所述绝缘板在所述爆破片的位置形成有多个网状孔。
  9. 如权利要求1至5任一项所述的具有多种保护机制的电池顶盖，其特征在于，所述第一电极柱的下端部具有与电池内部的电芯电性连接的第一导电片，所述绝缘板形成有第一极柱通孔，所述 第一导电片向上凸起形成有第一导电凸片，所述第一导电凸片嵌入所述第一极柱通孔中并与所述第一电极柱抵接。
  10. 如权利要求1至5任一项所述的具有多种保护机制的电池顶盖，其特征在于，所述第一导电块与所述第一电极柱一体成型。
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