M257014 捌、新型說明 【新型所屬之技術領域】 本創作是有關於一種電池結構，且特別是有關於一種 電池之外部保護元件與保護蓋的鉚合結構。 【先前技術】 電池係各種可攜式資訊、通訊及消費性電子產品、產 業機械、汽、機車及電動工具等不可或缺的重要電力供應 來源。由於近日電子、資訊及通訊產品發展均朝向體積 小、重里輕與可攜帶化的方向發展，為配合未來資訊、電 :與通訊產品短小輕薄便利化的趨勢，因此對於能量密度 :::次電池需求相當迫切。其中，由於鋰離子電池具有 月匕里在度同、無記憶效應、高工作電壓、儲存壽命長、可 充電夂數多、充電方式多、及操作溫度範圍廣等優勢，較 能滿足使用者的需求。 目前’鋰電池在外部具有保護元件，來保護電池，並 ί南電池制之安全性。其中，保護元件外更具有-保護 護結構較為脆弱之保護元件。現行之商用鐘電池 在外部保護元件盥俘缚苔 纟士 干一保冱蓋之結合上，大都採用雷射或電阻 鲜接的方式，來將保護元件接合在保護蓋上。 在右—〜目μ利料接方式結合保護元件與保護蓋，存 銲的声疋比率的失效。在保護元件與保護蓋銲接失效或假 下，保護元件無法與保護蓋有效結合，容易因電 池與外界之碰撞而脫落。如此—來，不僅導致保護元件無 M257014 法發揮其應有之功能，更會導致電池短路，而引發電池使 用之安全問題。 因此，為了提高保護元件與保護蓋銲接之品質與可靠 度，必須加嚴製程條件的控管及檢驗的頻率，甚至需要人 工全檢才能確保出貨的品質。然而，保護元件與保護蓋之 鋅接，在製程上及銲接品質的掌控上極其不易，且由於元 件組裝之機構設計也難以執行全檢。再加上，益雷 鲜接，或者是電阻銲接，都需要投人較多的設備 多之人力。如此一來，不僅會嚴重影響製程可靠度，也均 會造成製程成本的增加。 【新型内容】 因此’本創作之目的就是在提供一種電池之外部保護 疋件與保護蓋的鉚合結構，其係在保護蓋之導電片以及在 保護元件上分別設置相對應之鉚合孔與鉚合爪。經柳合 :’鉚合孔與鉚合爪結合成鉚合結構’藉以使保護元件穩 定且可靠地固定在保護蓋上。 本創作之另-目的是在提供一種電池之外部保護元 ^保護蓋的鉚合結構’可將保護元件有效地固定在保護 盍中。因此，可大幅提高電池之安全性與可靠产。 根據本創作之上述目的，提出一種電池之：部保護元 護蓋的鉚合結構，至少包括：―保護蓋，此保護蓋 絕綾、 汉等冤片，其中該導電片嵌附在 、、·’且導電片至少包括第一部分位於絕緣主體之 M257014 第一表面以及第二部分位於絕緣主體之第二表面，而導電 片之第二部分至少設有—個鉚合孔；以及-保護元件，其 中此保護元件之-端至少設有對應於上述鉚合孔之柳合 爪丄鉚口後’上述之鉚合孔與柳合爪形成娜合結構，以 使保護元件能鉚合固定在保護蓋之導電片的第二部分上。 依‘、、、本創#纟佳實施例’上述電池為方形經離子電 池。此：，保護元件之另一端至少包括一固定孔，且絕緣 主體之第―表面更至少包括對應於上述固定孔之固定凸 塊’可插人保護元件之固定孔，藉以固^㈣元件之另一 端。 在本創狀另一較佳實施％中，_合爪可設於保護蓋 之導電片的第一部分上，而相對於鉚合爪之鉚合孔則可設 於保護元件上。 利用位於保護蓋以及保護元件上之鉚合爪與鉚合 孔，可輕易且可靠地將保護元件鉚合固定在保護蓋上。如 此-來，可避免保護元件從保護蓋上脫落，而導致保護元 件無法正常運作’甚至導致電池短路，進而引發電池在使 用上之安全疑慮。因此，透過本創作之電池外部保護元件 與保護蓋的鉚合結構可大大地提高電池的安全性與可靠 【實施方式】 本創作揭露一種電池之外部保護元件與保護蓋的鉚 合結構’可穩定且可靠地將保護元件固定在保護蓋上。因 M257014 此，可大幅提高電池使用之安全性與可#度。為了使本創 作之敘述更加詳盡與完備，可參照下列描述並配合第j 圖至第5圖之圖示。 請參照第1圖，第1圖係繪示依照本創作一較佳實施 例的一種電池與電池外部保護元件及保護蓋的結構示意 圖。電池100之端蓋102以及電極1〇4上覆蓋由保護元件 120與保護蓋1〇6所組成之結構，以防止因電流過大而傷 及電池100,内部，進而可提高電池1〇〇使用之安全性。電 極104與電池1〇〇之端蓋102之間由絕緣層1〇3予以電性 隔離。其中，電池100可為二次電池，例如為鋰離子電池， 且電池100較佳為方形電池。 請一併參照第2a圖至第3b圖，其中第2&圖係繪示 依照本創作一較佳實施例的一種保護蓋之上表面的上視 圖，第2b圖係繪示依照本創作一較佳實施例的一種保護 蓋之下表面的上視圖，第3a圖係繪示依照本創作一較佳 實施例的一種保護元件之上視圖，第3b圖則係繪示第3a 圖之保護元件的剖面圖。保護蓋1〇6係以射出成型的方式 將絕緣物包覆在導電片丨24外，而形成絕緣主體1〇8將此 一導電片124分隔成第一部分110與第二部分114。其 中’導電片124之第一部分11〇位於絕緣主體108之上表 面122上，而導電片124之第二部分114則位於絕緣主體 1〇8之下表面125上，如第2a圖以及第2b圖所示。在本 創作之較佳實施例中，導電片124之材質較佳為鎳（Ni)。 絕緣主體108更至少包括孔洞丨丨2與窗口 118，其中孔洞 M257014 ii2暴露出導電片124之第二部分114的一部分，且孔洞 112所暴露出之導電片124的第二部分U4上更至少形成 鉚合孔116。而窗口 118則貫穿導電片124之第一部分 以及絕緣主體1G8，其中窗口 118之位置對應於電池⑽ 之電極104的位置。 請參照第2b圖，絕緣主體108之下表面125可至少 包括凹陷區128,此凹陷區128之大小較佳是略大於保護 元件120’以容置保護元件12〇,並具有定位保護元件12〇 之效用。導電# 124之第二部& 114則延伸在絕緣主體 之下表面125之凹陷區128的一端中。此凹陷區128 之另端更可於絕緣主體108射出成型時，形成固定凸塊 126 ’以利固定保護元件ι2〇。 請同時參照第化圖以及第扑圖，保護元件12〇至少 包括兩個不連續之保護元件之導電端子13〇以及接合在 這些不連續的保護元件之導電端子13〇之間的保護元件 主體132。其中呆護元件主冑132具有感熱或感電之功 月f，過熱或電流過大時產生斷路來保護電池。保護元件 之一端至少設有鉚合爪134位於保護元件之導電端子 130中，其中此鉚合爪i 34之位置及尺寸均對應於保護蓋 106上之鉚合孔116,以使保護元件12〇接合在保護蓋 時’保護元件120之鉚合爪134能穿過保護蓋1〇6上之鉚 合孔116。保護元件120之另一端更至少包括固定孔136 位於保護元件之導電端子130中，其中固定孔136之位置 與尺寸均對應於絕緣主體1〇8之下表面125之固定凸塊 10 M257014 126,以在保護元件12〇接合在保護蓋1〇6時，能使絕緣 主體108上之固定凸塊126可穿過保護元件12〇之固定孔 136，來固定保護元件ι2〇之一端。 接合保護元件120與保護蓋106時，先將保護元件 120放在絕緣主體108之下表面125的凹陷區128中，並 使絕緣主體108上之固定凸塊126穿過保護元件12〇之固 定孔136,以定位保護元件12〇之一端。同時，將保護元 件120之鉚合爪134穿過保護蓋1〇6上之鉚合孔然 後，利用治具將保護元件12〇之鉚合爪134與保護蓋 之鉚合孔116鉚合成型，而形成鉚合結構138，以將保護 元件120穩固地接合在保護蓋1〇6之下表面125上如第 4圖+與第5圖所示。進行保護元件12〇與保護蓋ι〇6之鉚 合時，較佳是能使保護元件12〇與保護蓋1〇6之間達到優 良之接觸與相當低之阻抗。 值得注意的一點是，本創作亦可先在保護蓋之導電片 上形成鉚合爪，再進行導電片之塑膠物料的射出成型，然 後於保遵元件之導電端子上形成與保護蓋之鉚合爪相對 應之鉚合孔。經治具鉚合後，同樣可形成鉚合結構，使保 護元件與保護蓋穩固地接合。 完成保護元件與保護蓋之鉚合後，可利用檢測預設鉚 ϋ處之厚度，即可有效獲知保護元件與保護蓋間之鉚合結 構是否形成，來判斷保護元件與保護蓋是否完成鉚合。因 此，可大幅減少製程控制與品質檢驗之成本，以及潛在接 合失效所造成之損失。 11 M257014 由上述本創作較佳實施例可知，本創作之一優點就是 因為在保護蓋之導電片以及在保護元件上分別設置相對 應之鉚合孔與鉚合爪。經鉚合後，鉚合孔與鉚合爪所結合 成之鉚合結構，可達到使保護元件穩定且可靠地固定^ 護蓋上之目的。 曰由上述本創作較佳實施例可知，本創作之另一優點就 是因為本創作電池之外部保護元件與保護蓋的鉚合結 構，可將保護元件有效地固定在保護蓋中。因此，可達到 大幅提高電池之安全性與可靠度的目的。 由上述本創作較佳實施例可知，本創作之又一優點就 疋因為藉由鉚合的方式，可大幅提高保護元件與保護蓋接 σ之可罪度，並可降低製程成本，更可減低因保護元件與 保護蓋接合失效所造成之損失。 、雖然本創作已以一較佳實施例揭露如上，然其並非用 以限定本創作，任何熟習此技藝者，在不脫離本創作之精 ^和範圍内，當可作各種之更動與潤飾，因此本創作之保 遵範圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 第1圖係繪示依照本創作一較佳實施例的一種電池 與電池外部保護元件及保護蓋的結構示意圖。 ^第2a圖係繪示依照本創作一較佳實施例的一種保護 急之上表面的上視圖。 第2b圖係繪不依照本創作一較佳實施例的一種保護 12 M257014 蓋之下表面的上視圖。 第3a圖係繪示依照本創作一較佳實施例的一種保護 元件之上視圖。 第3b圖係緣示第3a圖之保護元件的剖面圖。 第4圖係繪示依照本創作一較佳實施例的一種保護 元件經鉚合後之上視圖。 第5 @係、緣示依照本創作一較佳實施例的一種保護 蓋之下表面經鉚合後的上視圖。M257014 新型 Description of the new type [Technical field to which the new type belongs] This creation relates to a battery structure, and in particular to a riveted structure of a battery's external protective element and a protective cover. [Previous Technology] Batteries are an indispensable and important source of power supply for various portable information, communication and consumer electronics products, industrial machinery, automobiles, locomotives and power tools. Recently, the development of electronics, information and communication products has been developed in the direction of small size, light weight and portability. In order to cope with the future trend of information, electricity: and communication products short, thin and convenient, so for energy density ::: secondary battery The demand is quite urgent. Among them, because the lithium-ion battery has the advantages of uniformity, no memory effect, high operating voltage, long storage life, many rechargeable batteries, multiple charging methods, and wide operating temperature range, it can better meet the needs of users. demand. At present, the lithium battery has a protective element externally to protect the battery and enhance the safety of the battery system. Among them, the protection element has a protection element with a weaker protection structure. Existing commercial clock batteries In most cases, the external protection element is used to bind the moss and the protection cover, and most of them use laser or resistance to connect the protection element to the protection cover. On the right- ~ mesh material connection method, the protection element and the protection cover are combined, and the acoustic noise ratio of the welding is invalid. If the welding of the protective element and the protective cap fails or is false, the protective element cannot be effectively combined with the protective cap, and it is easy to fall off due to the collision between the battery and the outside world. In this way, not only will the protection components not have the M257014 method to perform their proper functions, but it will also cause a short circuit of the battery, which will cause the safety of battery use. Therefore, in order to improve the quality and reliability of the welding of protective components and protective covers, the control and inspection frequency of process conditions must be tightened, and even full manual inspection is required to ensure the quality of shipment. However, the zinc connection between the protective element and the protective cover is extremely difficult in terms of manufacturing process and welding quality control, and it is also difficult to perform a full inspection due to the mechanism design of the component assembly. In addition, Yi Lei's fresh connection or resistance welding requires more equipment and manpower. As a result, not only will the process reliability be severely affected, but it will also increase the cost of the process. [New content] Therefore, the purpose of this creation is to provide a riveting structure of the battery's external protective member and the protective cover, which are respectively provided with corresponding riveting holes and protective holes on the conductive sheet of the protective cover and the protective element. Riveted claws. Through willow closure: 'the riveting hole is combined with the riveting claw to form a riveted structure', so that the protective element is stably and reliably fixed on the protective cover. The other purpose of this creation is to provide an external protection element for the battery. The rivet structure of the protection cover can effectively fix the protection element in the protection sleeve. Therefore, the safety and reliability of the battery can be greatly improved. According to the above purpose of this creation, a rivet structure of a battery protection cover is proposed, which includes at least: ―protective cover, this protective cover is absolutely indestructible, such as Chinese, in which the conductive piece is embedded in ,, ... 'And the conductive sheet includes at least a first portion of M257014 on the first surface of the insulating body and a second portion on the second surface of the insulating body, and the second portion of the conductive sheet is provided with at least one riveting hole; and-a protective element, wherein The -end of the protection element is provided with at least the riveting claws corresponding to the riveting holes. After the riveting holes and the riveting claws are formed into a mating structure, the protection element can be riveted and fixed on the protective cover. On the second part of the conductive sheet. According to ',,, this invention # 纟 佳 实施 例', the above battery is a square via ion battery. This: The other end of the protection element includes at least a fixing hole, and the first surface of the insulating body further includes at least a fixing projection corresponding to the above-mentioned fixing hole. One end. In another preferred embodiment of the present invention, the engaging claws may be provided on the first part of the conductive sheet of the protective cover, and the riveting holes opposite to the riveting claws may be provided on the protective element. With the riveting claws and riveting holes located on the protective cover and the protective element, the protective element can be riveted and fixed on the protective cover easily and reliably. In this way, the protection element can be prevented from falling off from the protective cover, which may cause the protection element to fail to function properly, or even cause a short circuit of the battery, which may cause battery safety concerns. Therefore, the safety and reliability of the battery can be greatly improved through the riveted structure of the battery's external protective element and the protective cover [Embodiment] This creation discloses a riveted structure of the battery's external protective element and the protective cover 'can be stable The protective element is reliably fixed on the protective cover. Because of M257014, it can greatly improve the safety and reliability of battery use. In order to make the narrative of this creation more detailed and complete, you can refer to the following description and cooperate with the diagrams in Figures j to 5. Please refer to FIG. 1. FIG. 1 is a schematic diagram showing the structure of a battery, a battery external protection element, and a protection cover according to a preferred embodiment of the present invention. The end cap 102 and the electrode 104 of the battery 100 are covered with a structure composed of a protective element 120 and a protective cover 106 to prevent damage to the battery 100 and the inside due to excessive current, thereby improving the use of the battery 100. safety. The electrode 104 and the end cap 102 of the battery 100 are electrically isolated by an insulating layer 103. The battery 100 may be a secondary battery, such as a lithium-ion battery, and the battery 100 is preferably a square battery. Please refer to FIGS. 2a to 3b together, where the 2 & diagram is a top view of the upper surface of a protective cover according to a preferred embodiment of the present invention, and the 2b diagram is a comparative view A top view of the lower surface of a protective cover of the preferred embodiment, FIG. 3a is a top view of a protection element according to a preferred embodiment of the present invention, and FIG. 3b is a view of the protection element of FIG. 3a. Sectional view. The protective cover 106 is formed by encapsulating an insulator on the conductive sheet 24 by injection molding, and an insulating body 108 is formed to separate this conductive sheet 124 into a first part 110 and a second part 114. The first part 110 of the conductive sheet 124 is located on the upper surface 122 of the insulating body 108, and the second part 114 of the conductive sheet 124 is located on the lower surface 125 of the insulating body 108, as shown in FIG. 2a and FIG. 2b. As shown. In a preferred embodiment of the present invention, the material of the conductive sheet 124 is preferably nickel (Ni). The insulating body 108 further includes at least a hole 2 and a window 118. The hole M257014 ii2 exposes a part of the second portion 114 of the conductive sheet 124, and the second portion U4 of the conductive sheet 124 exposed by the hole 112 is at least formed. Riveting hole 116. The window 118 penetrates the first part of the conductive sheet 124 and the insulating body 1G8. The position of the window 118 corresponds to the position of the electrode 104 of the battery ⑽. Please refer to FIG. 2b. The lower surface 125 of the insulating body 108 may include at least a recessed area 128. The size of the recessed area 128 is preferably slightly larger than the protection element 120 'to receive the protection element 12 and has a positioning protection element 12. Effect. The second part & 114 of the conductive # 124 extends in one end of the recessed area 128 of the lower surface 125 of the insulating body. The other end of the recessed area 128 can be used to form a fixed bump 126 'when the insulating body 108 is injection-molded to facilitate fixing the protection element ι20. Please refer to the first figure and the second figure at the same time, the protection element 120 includes at least two conductive terminals 13 of the discontinuous protection elements and a protection element body 132 joined between the conductive terminals 13 of the discontinuous protection elements. . Among them, the main protection element 132 has a function of sensing heat or electricity, and a circuit is generated when the overheating or the current is too large to protect the battery. One end of the protection element is provided with at least a riveting claw 134 located in the conductive terminal 130 of the protective element, wherein the position and size of the riveting claw i 34 correspond to the riveting holes 116 on the protective cover 106 to make the protective element 12. When engaged with the protective cover, the riveting claw 134 of the protective element 120 can pass through the riveting hole 116 in the protective cover 106. The other end of the protection element 120 further includes at least a fixing hole 136 located in the conductive terminal 130 of the protection element. The position and size of the fixing hole 136 correspond to the fixing bumps 10 M257014 126 on the lower surface 125 of the insulating body 108. When the protection element 120 is bonded to the protection cover 106, the fixing projection 126 on the insulating body 108 can pass through the fixing hole 136 of the protection element 120 to fix one end of the protection element ι20. When joining the protective element 120 and the protective cover 106, first place the protective element 120 in the recessed area 128 of the lower surface 125 of the insulating body 108, and pass the fixing protrusion 126 on the insulating body 108 through the fixing hole of the protective element 120. 136, to locate one end of the protection element 120. At the same time, the riveting claws 134 of the protective element 120 are passed through the riveting holes in the protective cover 106, and then the riveting claws 134 of the protective element 120 and the riveting holes 116 of the protective cover are riveted into a combined type using a jig. A riveting structure 138 is formed to firmly bond the protection element 120 to the lower surface 125 of the protection cover 106 as shown in FIG. 4+ and FIG. 5. When the riveting of the protective element 12 and the protective cover 106 is performed, it is preferable to achieve excellent contact and a relatively low impedance between the protective element 12 and the protective cover 106. It is worth noting that this creation can also form riveting claws on the conductive sheet of the protective cover, and then perform injection molding of the plastic material of the conductive sheet, and then form the riveting claws on the conductive terminals of the protective component with the protective cover. Corresponding riveting hole. After the jig is riveted, a riveted structure can also be formed, so that the protective element and the protective cover are firmly joined. After the riveting of the protective element and the protective cover is completed, the thickness of the preset riveting can be detected to effectively determine whether the riveted structure between the protective element and the protective cover is formed, and to determine whether the protective element and the protective cover have been riveted. . Therefore, the cost of process control and quality inspection can be greatly reduced, as well as the loss caused by potential joint failure. 11 M257014 From the above-mentioned preferred embodiment of the present invention, one of the advantages of the present invention is that the corresponding riveting holes and riveting claws are respectively provided on the conductive sheet of the protective cover and the protective element. After riveting, the riveting structure formed by the riveting holes and the riveting claws can achieve the purpose of stably and reliably fixing the protective element on the cover. It can be known from the above preferred embodiment of the present invention that another advantage of the present invention is that the riveting structure of the external protection element and the protective cover of the battery of the present invention can effectively fix the protective element in the protective cover. Therefore, the purpose of greatly improving the safety and reliability of the battery can be achieved. As can be seen from the above preferred embodiment of the present invention, another advantage of the present invention is that by rivetting, the guilt of the protection element and the protection cover can be greatly improved, and the manufacturing cost can be reduced, and the reduction can also be reduced. Loss caused by failure of the joint between the protective element and the protective cover. Although this creation has been disclosed as above with a preferred embodiment, it is not intended to limit the creation. Anyone skilled in this art can make various changes and decorations without departing from the essence and scope of this creation. Therefore, the scope of the guarantee of this creation shall be determined by the scope of the attached patent application. [Brief description of the drawings] FIG. 1 is a schematic structural diagram of a battery, a battery external protection element, and a protection cover according to a preferred embodiment of the present invention. ^ Figure 2a is a top view of a protective upper surface according to a preferred embodiment of the present invention. Figure 2b is a top view of the surface under the cover that is not in accordance with a preferred embodiment of the present invention. Figure 3a is a top view of a protection element according to a preferred embodiment of the present invention. Figure 3b is a cross-sectional view of the protective element of Figure 3a. FIG. 4 is a top view of a protection element according to a preferred embodiment of the present invention after riveting. Section 5 @ 系 、 缘 示 A top view of the lower surface of a protective cover according to a preferred embodiment of the present invention after riveting.
【元件代表符號簡單說明】 100 ： 電池 103 ： 絕緣層 106 ： 保護蓋 110 ： 第一部分 114 ： 第一部分 118 ： 窗口 122 ： 上表面 125 ： 下表面 128 ： 凹陷區 132 ： 保護元件主體 136 ： 固定孔 102 ： 端蓋 104 ： 電極 108 ： 絕緣主體 112 ： 孔洞 116 ： 鉚合孔 120 ： 保護元件 124 ： 導電片 126 ： 固定凸塊 130 ： 保護元件之導電端子 134 : 鉚合爪 138 ： 鉚合結構[A brief description of the element representative symbols] 100: battery 103: insulating layer 106: protective cover 110: first part 114: first part 118: window 122: upper surface 125: lower surface 128: recessed area 132: protective element body 136: fixing hole 102: End cap 104: Electrode 108: Insulating body 112: Hole 116: Riveted hole 120: Protective element 124: Conductive sheet 126: Fixed projection 130: Conductive terminal of the protective element 134: Riveted claw 138: Riveted structure
1313