M385096 五、新型說明： 【新型所屬之技術領域】 本創作係有關於一種二次電池，特別是指一種為強化二次電池安全性 而研發之電池罐體。 【先前技術】 . 按’二次電池具有可重複使用、環保，不會造成環境二次污染等諸多 優點已普遍為人所熟悉，且與發展初期相比，現有二次電池技術趨於成熟， # 其儲能密度也已提高許多，因此還兼具有體積小，攜帶便利之競爭優勢。 惟’傳統二次電池殼體300結構就如第1圖所示，係在一中空殼體310 内置一電芯320，且電芯320每一端係都包括複數導電柄(圖未示)以及一電 性連接該等導電柄之内端子32卜再將兩端的内端子321各連接一導電端子 330 ’最後以雷射焊接方式於中空殼體31〇各端封罩一端蓋34〇，每一端蓋 340中心設有一穿孔34卜以供導電端子330凸設於外。但雷射焊接強度不 佳，尤其在两儲此在、度的二次電池上使用危險性也相對更高，進一步而言， • 係因尚儲能二次電池使用時内部壓力相對較大，造成端蓋340承壓力不足 所影響，¥中空设體310内部壓力大過一定限度值時，端蓋“ο即容易因 壓力衝擊而自中空殼體训飛脫傷人，故有其安全疑慮存在。縱然，現有 部份技娜在職上加裝祕單元觀該先翻^失，但仍舊有賴單元拽 壓不及，導致電池爆炸之事件發生。 是以本創作針對m述先前技術之而提巾—種電池罐體結構改 良，俾有效改善習知缺失。 【新型内容】 M385096 本創作之主要目的係在提供―種電池罐體，其係增加崎树力，並 能提高二次電池使用安全性。 本創作之p目的係在提供—觀池罐體，其更可以在電池罐體内部 壓力超過限度值時线内鑛力，以對二次電池之顧作進—步保護。 為達到上述之目的’本創作揭露一種電池罐體，其係用在二次電池上， 該電池罐體包括有-殼體，用以容置一電芯，殼體至少具有_開〇，於開 口之邊緣並彎折形成-第—彎折部；又，殼體之開口上封蓋有—端蓋，端 蓋之邊緣亦彎折形成-第二f折部，該第二彎折部並與第—彎折部相互嵌 合，復而增加端蓋與殼體之結合能力。 底下藉由频實_配合__式詳加賴，當更容純解本創作 之目的、技術内容、特點及其所達成之功效。 【實施方式】 本創作提出-種電池罐體，以針㈣知二次電池承壓力不足易發生危 險的問題’提出的電池罐體之殼體與端蓋的結構改良。 请同時參_ 2 U〜第4圖，分別為本創作電池罐體立體圖、分解圖 以及部份結構剖視I如酬示，—電池罐體丨⑼包括__殼體丨⑺，其内呈 中空’一端各設有—開σ⑴，每—開口⑴之邊緣並向内彎折形成一第一 彎折部113 〇又’殼體11G十係可容置—電芯，—般電芯係由電極 卷21〇、連接電極卷21〇兩端之導電柄22〇，以及連接導電柄22〇之内端子 23〇組成，其中，電極卷训更是由夾設隔離膜之正負極片料後捲繞成， 且該等導電柄22G分別電性連接正負極片，二内端子23〇又再電性連接該 等導電柄220 ’因而具有極性形成電極卷210兩端的正負極，且内端子23〇 常為螺;^于，表面具有外螺紋；然而内端子2如與導電柄no結合方式 位夕且非關本案之創作特徵，故此僅以一實施態樣舉例說明。 魏罐體100在殼體110二端更分別以一端蓋12〇罩蓋住兩端之開口 111母—端蓋120中心包括—穿孔121，用以供内端子230伸出，此外， 〜第彳折。卩113之形狀，端蓋12()之邊緣亦彎折形成—第二彎折部 =，且第二f折部123伸入第—弯折部⑴中因受第—彎折部113壓迫 而疋位成體11G與端蓋12G相對位置，換言之殼體1⑴與端蓋12〇係因 第一¥折部113與第二彎折部123的相互嵌合而結合定位；其次，端蓋⑼ 表面更經梢出弧形之—&壓區125，當殼體iiq _力大於預定值時，茂 廢區⑵會因為邊界厚度較薄_係而破裂，因而具有釋放殼體⑽内部 壓力之作用。 田然，捕區125並非一定為弧形，就如第5圖之十字型或如第6圖 之圓形所示，係都可以達到與弧形顏區125相同之親效果，故，舉凡 •可以端蓋120賴形成之形狀係都可以·在本創狀_區a實施中。 # 再者，電池雜100更在每一端蓋120夕卜側設置一塾片130，且該塾片 13〇具有-内孔131以供内端子23〇通過，又於每—塾片13〇外側各別鎖設 一導電端子140，以利用導電端子14〇之一頭部141迫緊墊片m，進而使 殼體no呈密閉’導電端子140並於頭部141外側向外延伸設有一螺桿⑷， 以供一外部裝置電性連接。 又’如第3圖所示’其中，端蓋12〇為板金元件，故沖壓成型時即以 具備第二彎折部123，因此組合時，其係先將端蓋12〇裝設在殼體⑽兩端 之開口 in巾’接著向内騎殼體110以形成第—f折部113，後續只要 5 M385096 在伸出穿孔丨21之内端子23〇上套設墊片〗30,並將導電端子14〇鎖設於内 端子230上’鎖設時，使其頭部141緊緊迫壓於墊片130上，自然可以密 閉殼體110内部空間。當然亦可以先組合墊片130、導電端子後14〇，再成 型第一彎折部113，亦不影響本電池殼體100之實施。 由此說明尚可得知本創作具有構件少，組裝容易之優點，此外，第一 弯折部包覆第二彎折部之結合結構，錢於先前技射以雷射焊接之組合 方式，俾使本創之電池殼體作用於二次電池時，更能提供高安全性能且 更可以增設洩壓區，俾強化本創作電池殼體防爆效果。 以上所述’係藉由實關綱辆狀_，其目的在錢習該技術 者能瞭解摘叙㈣麟轉施，而雜縣創叙私細，故凡其 他未脫離本創作所揭示之精神而完成之等效軸或修改，仍應包含在以下 所述之申請專利範圍中。 【圖式簡單說明】 第1圖為習知一種二次電池部份剖視圖。 第2圖為本創作一實施例之立體圖。 第3圖為本創作一實施例之分解圖。 第4圖為本創作一實施例之局部結構剖視圖。 第5圖為本創作端蓋之紐區之另—實施態樣示意糧 第6圖為本創作端蓋之洩壓區之再—實施態樣示音這 【主要元件符號說明】 100 電池罐體 no殼體 ui開口M385096 V. New description: [New technical field] This creation is about a secondary battery, especially a battery can body developed to enhance the safety of secondary batteries. [Prior Art] . According to the fact that 'secondary battery has reusable, environmentally friendly, and does not cause secondary pollution of the environment, it is widely known, and compared with the initial stage of development, the existing secondary battery technology tends to be mature. # Its energy storage density has also increased a lot, so it also has the competitive advantage of small size and convenient carrying. However, the structure of the conventional secondary battery case 300 is as shown in FIG. 1 , and a battery core 320 is built in a hollow casing 310, and each end of the battery core 320 includes a plurality of conductive handles (not shown) and The inner terminal 32 of the conductive handles is electrically connected to each other, and the inner terminals 321 of the two ends are respectively connected to a conductive terminal 330'. Finally, the end caps 34 of each end of the hollow casing 31 are sealed by laser welding. A through hole 34 is defined in the center of the end cover 340 for the conductive terminal 330 to protrude outside. However, the laser welding strength is not good, especially in the secondary batteries with two degrees of storage, the risk is relatively higher. Further, the internal pressure is relatively large when the secondary battery is used. The end cap 340 is caused by insufficient bearing pressure. When the internal pressure of the hollow body 310 is greater than a certain limit value, the end cap "o is easy to be injured from the hollow shell due to pressure shock, so there are safety concerns. Existence. Even though the existing part of Techna has added a secret unit to the job, it still relies on the unit, but it still relies on the unit’s pressure to cause an explosion of the battery. - Improvement of the structure of the battery can, and effectively improve the lack of knowledge. [New content] M385096 The main purpose of this creation is to provide a kind of battery can, which increases the strength of the resin and improves the safety of secondary battery use. The purpose of this creation is to provide a tank body, which can further protect the secondary battery when the pressure inside the battery tank exceeds the limit value. The present invention discloses a battery can body for use in a secondary battery, the battery can body including a casing for accommodating a battery core, the casing having at least _ opening, bent at the edge of the opening Forming a first-bend portion; further, the opening of the housing is covered with an end cap, and the edge of the end cap is also bent to form a second f-fold portion, and the second bent portion is combined with the first bent portion Mutual fitting, and increasing the ability to combine the end cap and the shell. Under the circumstance of the frequency _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ [Embodiment] This creation proposes a kind of battery can body, and the structure of the battery can body and the end cap proposed by the needle (4) knowing that the pressure of the secondary battery is insufficient to be dangerous is improved. Please also refer to _ 2 U ~ Figure 4, respectively, is a perspective view of the creation of the battery can, exploded view and partial structural section I, such as rewards, - battery can 丨 (9) including __ housing 丨 (7), which is hollow inside the end Having σ(1), each edge of the opening (1) and bent inward to form a first bent portion 113 〇 and 'shell The 11G ten series can accommodate the battery core, and the electric core is composed of an electrode coil 21〇, a conductive handle 22〇 connecting the two ends of the electrode coil 21〇, and an inner terminal 23〇 connected to the conductive handle 22〇, wherein the electrode The roll training is wound by the positive and negative sheets of the separator, and the conductive handles 22G are electrically connected to the positive and negative electrodes, respectively, and the two inner terminals 23 are electrically connected to the conductive handles 220'. The positive electrode and the negative electrode having the polarity forming the two ends of the electrode roll 210, and the inner terminal 23 is often a screw; the surface has an external thread; however, the inner terminal 2 is combined with the conductive handle no and is not a creative feature of the present case. Only one embodiment is illustrated. The can body 100 is further covered with an end cap 12 at both ends of the housing 110. The center of the end cap 120 includes a through hole 121 for the inner terminal. 230 stretched out, in addition, ~ the first fold. In the shape of the crucible 113, the edge of the end cap 12 () is also bent to form a second bent portion =, and the second f-fold portion 123 protrudes into the first bent portion (1) due to the compression by the first bent portion 113. The position of the upper body 11G and the end cover 12G, in other words, the housing 1 (1) and the end cover 12 are combined and positioned by the mutual fitting of the first folding portion 113 and the second bending portion 123; secondly, the surface of the end cover (9) Further, when the shell iiq_force is greater than a predetermined value, the blasting zone (2) is broken due to the thinner boundary thickness, thereby releasing the internal pressure of the casing (10). . Tian Ran, the catching area 125 is not necessarily curved, just like the cross type of Figure 5 or the circle as shown in Figure 6, the system can achieve the same pro-effect as the curved area 125, so The shape in which the end cap 120 can be formed can be implemented in the present invention. # Further, the battery miscellaneous 100 further has a cymbal 130 on each side of the end cover 120, and the cymbal 13 〇 has an inner hole 131 for the inner terminal 23 to pass through, and on the outer side of each cymbal 13 〇 Each of the conductive terminals 140 is locked with a conductive terminal 140 to press the spacer m with one of the conductive terminals 14 ,, so that the housing no is sealed and the conductive terminal 140 is extended outwardly from the outside of the head 141. , for an external device to be electrically connected. Further, as shown in FIG. 3, the end cap 12 is a sheet metal member, so that the second bent portion 123 is provided at the time of press forming, so that when the combination is performed, the end cap 12 is first mounted on the housing. (10) The opening of the both ends in the towel 'then' then rides the housing 110 inwardly to form the first-f-fold portion 113, and then as long as 5 M385096 is placed on the terminal 23 of the protruding perforation 21, the spacer 30 is placed and conductive When the terminal 14 is locked on the inner terminal 230, the head portion 141 is tightly pressed against the spacer 130, and the inner space of the housing 110 can be naturally sealed. Of course, it is also possible to combine the spacer 130 and the conductive terminal 14 〇 before forming the first bent portion 113 without affecting the implementation of the battery case 100. Therefore, it can be known that the present invention has the advantages of few components and easy assembly. In addition, the first bending portion covers the combined structure of the second bending portion, and the combination of the prior art and the laser welding is performed. When the battery case of the present invention is applied to the secondary battery, it can provide high safety performance and can further add a pressure relief zone, thereby enhancing the explosion-proof effect of the battery case of the present invention. The above description is based on the actual situation of the vehicle, and its purpose is to understand the excerpt (4) Lin Shi Shi, and the miscellaneous county creates a private detail, so the other spirits that have not been revealed from this creation The equivalent axis or modification completed should still be included in the scope of the patent application described below. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a partial cross-sectional view showing a conventional secondary battery. Figure 2 is a perspective view of an embodiment of the creation. Figure 3 is an exploded view of an embodiment of the creation. Figure 4 is a cross-sectional view showing a partial structure of an embodiment of the present invention. Figure 5 is another example of the creative area of the creative end cover. Figure 6 is the re-implementation of the pressure relief zone of the creative end cap. [Main component symbol description] 100 battery can body No shell ui opening