JP3241009U - Power battery cover plate and power battery - Google Patents

Power battery cover plate and power battery Download PDF

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JP3241009U
JP3241009U JP2021600163U JP2021600163U JP3241009U JP 3241009 U JP3241009 U JP 3241009U JP 2021600163 U JP2021600163 U JP 2021600163U JP 2021600163 U JP2021600163 U JP 2021600163U JP 3241009 U JP3241009 U JP 3241009U
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power battery
conductive member
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cover plate
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建炬 励
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Shenzhen Kedali Industry Co Ltd
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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 of a single cell or a single battery
    • H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
    • H01M50/103—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure prismatic or rectangular
    • 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 of a single cell or a single battery
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
    • 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 of a single cell or a single battery
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/176—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
    • 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 of a single cell or a single battery
    • H01M50/183—Sealing members
    • H01M50/184—Sealing members characterised by their shape or structure
    • 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 of a single cell or a single battery
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • 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 of a single cell or a single battery
    • H01M50/183—Sealing members
    • H01M50/19—Sealing members characterised by the material
    • H01M50/193—Organic material
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • H01M50/342—Non-re-sealable arrangements
    • H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
    • 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
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • 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
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/578—Devices or arrangements for the interruption of current in response to pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/20—Pressure-sensitive devices
    • 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

Abstract

Figure 0003241009000001

動力電池蓋板及び動力電池であって、前記動力電池蓋板は、トップカバーシート及び２つのポストであって、２つの前記ポストが前記トップカバーシートに穿設され、前記トップカバーシートと前記ポストとの接続箇所でローリングエッジが設けられるトップカバーシート及び２つのポストと、２つの前記ポストのうちの少なくとも１つの前記ポストの底部に設けられる停電保護デバイスとを含み、前記停電保護デバイスは、前記ポストの底部に接続され、前記ポストから離れた方向に凹む窪み部が設けられる反転シートと、前記窪み部の底部に接続される導電部材とを含み、ここで、前記反転シートの前記窪み部は、電池内の気圧が予め設定された値に達する時に前記導電部材との接続を切断するように前記ポストに反転することができる。
【選択図】図４

Figure 0003241009000001

A power battery cover plate and a power battery, wherein the power battery cover plate is a top cover sheet and two posts, two posts perforated in the top cover sheet, the top cover sheet and the posts a top cover sheet and two posts provided with a rolling edge at a connection point with the a reversing sheet connected to the bottom of a post and provided with a recess recessed away from said post; and a conductive member connected to the bottom of said recess, wherein said recess of said reversing sheet is , the post may be inverted to disconnect the conductive member when the air pressure within the battery reaches a preset value.
[Selection drawing] Fig. 4

Description

本願は、出願日が２０２０年３月２０日で、出願番号が２０２０２０３６４１５９．２である中国特許出願の優先権を主張し、その全ての内容は本願の中に引用により組み込まれる。 This application claims priority from a Chinese patent application with filing date March 20, 2020 and application number 202020364159.2, the entire content of which is incorporated herein by reference.

本願は電池の技術分野に関し、例えば動力電池蓋板及び動力電池に関する。 The present application relates to the technical field of batteries, such as power battery cover plate and power battery.

動力電池は工具に動力源を提供する電源を指し、多くは電気自動車、電車、電動自転車などに動力を提供する蓄電池を指す。動力電池は内部圧力が大きすぎる時、通電動作を継続すると、動力電池が爆発しさらに事故を引き起こしてしまい、関連技術における動力電池の安全性能が十分ではなく、多くの動力電池は、電池内部の圧力が大きすぎる時に停電保護機能を実現することができず、動力電池内部の圧力が大きすぎる時も通電動作を継続することになり、安全上のリスクが存在する。 Power battery refers to the power source that provides the power source for the tools, and mostly refers to the storage battery that provides power for electric vehicles, trains, and electric bicycles. When the internal pressure of the power battery is too large, if the power battery continues to operate, the power battery will explode and cause an accident. When the pressure is too high, the power failure protection function cannot be achieved, and the power battery will continue to operate when the pressure inside the power battery is too high, which poses a safety risk.

本願の目的は動力電池蓋板及び動力電池を提供し、動力電池内部の圧力が大きすぎる時に停電保護を実現し、安全リスクを減少できる。 The purpose of the present application is to provide a power battery cover plate and a power battery, which can realize power failure protection when the pressure inside the power battery is too large, and reduce safety risks.

一実施例は、
トップカバーシート及び２つのポストであって、２つの前記ポストは前記トップカバーシートに穿設され、前記トップカバーシートと前記ポストとの接続箇所にローリングエッジが設けられるトップカバーシート及び２つのポストと、
２つの前記ポストのうちの少なくとも１つの前記ポストの底部に設けられる停電保護デバイスとを含み、前記停電保護デバイスは、
前記ポストの底部に接続され、前記ポストから離れた方向に凹み窪み部が設けられる反転シートと、
前記窪み部の底部に接続される導電部材とを含み、
ここで、前記反転シートの前記窪み部は、電池内の気圧が予め設定された値に達した時に前記導電部材との接続を切断するように前記ポストに反転することができる、動力電池蓋板を提供する。 One example is
a top cover sheet and two posts, wherein the two posts are drilled in the top cover sheet, and a rolling edge is provided at a connection point between the top cover sheet and the post; and a top cover sheet and two posts. ,
a power failure protection device provided at the bottom of at least one of the two posts, the power failure protection device comprising:
an inverting sheet connected to the bottom of the post and provided with a recessed recess in a direction away from the post;
a conductive member connected to the bottom of the recess,
wherein the indented portion of the reversing sheet is reversible to the post to disconnect the conductive member when the air pressure within the battery reaches a preset value; I will provide a.

一実施例は、上述の動力電池蓋板を含む動力電池を提供する。 One embodiment provides a power battery including the power battery lid plate described above.

本願はトップカバーシートとポストとの係合箇所でローリングエッジ構造を採用することにより、組立の信頼性及び電池の密封性を向上させ、かつ電池蓋板は互いに接続された反転シート及び導電部材を含む停電保護安全デバイスを増加することにより、電池内部の圧力が大きすぎると、反転シートは反転することで導電部材と分離し、停電を実現し、動力電池の安全性を向上させる。 The present application adopts a rolling edge structure at the engagement point between the top cover sheet and the post to improve assembly reliability and battery sealing performance, and the battery cover plate includes an inverting sheet and a conductive member connected to each other. By increasing the power failure protection safety device, when the pressure inside the battery is too great, the reversing sheet will be reversed and separated from the conductive member, realizing power failure and improving the safety of the power battery.

一実施例に係る動力電池蓋板の平面構造模式図である。1 is a schematic plan view of a power battery cover plate according to an embodiment; FIG. 図１におけるＡ－Ａ断面に沿う断面構造模式図である。FIG. 2 is a schematic cross-sectional view along the AA cross section in FIG. 1; 図２におけるＢ部分の拡大図である。FIG. 3 is an enlarged view of a portion B in FIG. 2; 一実施例に係る動力電池蓋板の分解構造模式図である。FIG. 2 is an exploded structural schematic diagram of a power battery cover plate according to an embodiment;

本願は、停電保護機能が付く動力電池蓋板を提供する。図１は本願に係る動力電池蓋板の平面構造模式図であり、図２は図１におけるＡ－Ａ断面に沿う断面構造模式図であり、図３は図２におけるＢ部分の拡大図であり、図４は本願に係る電池蓋板の分解構造模式図であり、図１～図４を参照し、本願の動力電池蓋板１００はトップカバーシート１０、ポスト２０、及び停電保護デバイスを含む。ポスト２０は２つであり、それぞれ正極ポスト及び負極ポストである。ポスト２０は、ポスト２０が電池の外部に露出して、外部の導電性素子に接続されるようにトップカバーシート１０に穿設され、これにより電池の給電を実現する。停電保護デバイスは２つのポスト２０のうちの少なくとも１つのポスト２０の底部に設けられるが、２つのポスト２０の底部にいずれも停電保護デバイスを設けてもよく、ここでは制限しない。しかし１つのポスト２０の底部に停電保護デバイスを設けることで停電機能を実現することができるため、２つのポスト２０の底部にいずれも停電保護デバイスを設ける必要はない。本願においては、正極ポストの底部に停電保護デバイスを設けている。以下正極ポストの底部に停電保護デバイスを設けることを例として本願の動力電池蓋板１００の構造を説明する。 The present application provides a power battery cover plate with power failure protection. FIG. 1 is a schematic plan view of the power battery cover plate according to the present application, FIG. 2 is a schematic cross-sectional view along the AA cross section in FIG. 1, and FIG. 3 is an enlarged view of the B portion in FIG. , FIG. 4 is an exploded structural schematic diagram of the battery cover plate according to the present application. Please refer to FIGS. There are two posts 20, a positive post and a negative post, respectively. Posts 20 are drilled through the top cover sheet 10 such that the posts 20 are exposed to the outside of the battery and connected to external conductive elements, thereby providing power to the battery. A power failure protection device is provided on the bottom of at least one post 20 of the two posts 20, but both of the two posts 20 may be provided with a power failure protection device on the bottom, which is not limiting here. However, it is not necessary to install a power failure protection device on the bottom of the two posts 20 because the power failure function can be achieved by providing a power failure protection device on the bottom of one post 20 . In the present application, a power failure protection device is provided at the bottom of the positive post. The structure of the power battery cover plate 100 of the present application is described below by taking a power failure protection device at the bottom of the positive electrode post as an example.

図３に示すように、停電保護デバイスは反転シート３０及び導電部材４０を含み、反転シート３０がポスト２０の底部に接続され、反転シート３０にポスト２０から離れた方向に凹んだ窪み部３１が設けられ、導電部材４０が窪み部３０の底部に接続され、ことにより電池のエネルギーが導電部材４０によって反転シート３０に伝達され、ひいては反転シート３０によってポスト２０に伝達され、電気エネルギーの出力を実現する。反転シート３０の窪み部３１は電池内の気圧が予め設定された値に達した時に窪み部３１と導電部材４０との接続を切断するようにポスト２０に向かって反転することができ、停電を実現し、電池を保護し、電池が高圧で通電動作し続け、爆発等の事故が発生することを回避する。好ましくは、窪み部３１は反転シート３０上の一部だけであってもよく、つまり反転シート３０上の一部に窪みが設けられ反転を実現し、また、反転シート３０全体は１つの凹んだ形状であってもよく、ここでは制限しない。本願の一実施例において、電池内部の気圧が０．６±０．１５ＭＰａに達した時に、窪み部３１が反転し、停電を実現する。具体的な停電気圧は必要に応じて設けることができ、ここではそのうちの１つの実施形態のみを列挙する。 As shown in FIG. 3, the power failure protection device includes a reversing sheet 30 and a conductive member 40, the reversing sheet 30 being connected to the bottom of the post 20, and the reversing sheet 30 having a recess 31 recessed away from the post 20. provided, a conductive member 40 is connected to the bottom of the recess 30, so that the energy of the battery is transferred by the conductive member 40 to the reversing sheet 30, which in turn is transferred by the reversing sheet 30 to the post 20, realizing the output of electric energy do. The recessed portion 31 of the reversing sheet 30 can be reversed toward the post 20 to disconnect the recessed portion 31 and the conductive member 40 when the air pressure within the battery reaches a preset value, thereby preventing a power failure. It protects the battery and prevents the battery from continuing to operate at high voltage and causing an accident such as an explosion. Preferably, the recessed portion 31 may be only a part of the reversing sheet 30, that is, the reversing sheet 30 is partially recessed to achieve reversal, and the entire reversing sheet 30 is one recessed part. It may be of any shape and is not limited here. In one embodiment of the present application, when the air pressure inside the battery reaches 0.6±0.15 MPa, the depression 31 is reversed to realize power failure. A specific blackout air pressure can be provided as required, and only one embodiment thereof is listed here.

図２及び図３に示すように、トップカバーシート１０とポスト２０との接続箇所でローリングエッジ１１が設けられ、ローリングエッジ１１はポスト２０に折り曲げてポスト２０を固定し、例示的には、ポスト２０の周方向にはローリングエッジ１１と係合する段差面が設けられ、これによりポスト２０の周方向の段差面をローリングエッジ１１に当接させ、ポスト２０の固定を実現する。ローリングエッジ１１の構造は組立の信頼性及び電池の密封性を向上させることができ、ローリングエッジ１１をポスト２０の外端に止めさせ、ポスト２０をより強固にトップカバーシート１０に取付けることができる。いくつかの実施形態において、図３に示すように、ポスト２０とトップカバーシート１０との間にはゴムスリーブ５０が設けられ、ゴムスリーブ５０はゴム材質であり、絶縁を実現することができ、ゴムスリーブ５０はポスト２０のエッジに嵌設され、ポスト２０とトップカバーシート１０を遮断して絶縁させ、ローリングエッジ１１はゴムスリーブ５０に当接し、ゴムスリーブ５０を介してポスト２０を間接的に固定する。他のいくつかの実施例において、ローリングエッジはリベッティング、圧延及び射出等のプロセスで製造される構成に置き換えることができる。 As shown in FIGS. 2 and 3, a rolling edge 11 is provided at the connection point between the top cover sheet 10 and the post 20, and the rolling edge 11 is bent over the post 20 to fix the post 20, for example, the post A stepped surface engaging the rolling edge 11 is provided in the circumferential direction of the post 20 so that the circumferential stepped surface of the post 20 is brought into contact with the rolling edge 11 and the post 20 is fixed. The structure of the rolling edge 11 can improve the reliability of assembly and the sealing performance of the battery, and the rolling edge 11 can be stopped at the outer end of the post 20 so that the post 20 can be attached to the top cover sheet 10 more firmly. . In some embodiments, as shown in FIG. 3, a rubber sleeve 50 is provided between the post 20 and the top cover sheet 10, and the rubber sleeve 50 is made of rubber material to achieve insulation, The rubber sleeve 50 is fitted on the edge of the post 20 to isolate and insulate the post 20 from the top cover sheet 10 , and the rolling edge 11 abuts on the rubber sleeve 50 to indirectly connect the post 20 via the rubber sleeve 50 . fixed. In some other embodiments, the rolling edge can be replaced by structures manufactured by processes such as riveting, rolling and injection.

図３に示すように、ポスト２０の底部にはポスト２０の底部から頂部に延出する凹溝２１が設けられ、凹溝２１は反転シート３０の窪み部３１に対応して設けられ、凹溝２１は窪み部３１の反転に反転空間を提供する。図３に示すように、窪み部３１は反転せず、導電部材４０に接続されたままであり、電池内部の電圧が大きすぎると、窪み部３１が上に反転し、つまり窪み部３１が上に凹んで、窪み部３１と導電部材４０を分離させ、この時窪み部３１の上方に予め設定された空間が必要となり、これにより窪み部３１を上に凹ませることができ、したがってポスト２０の底部に凹溝２１を設けることで窪み部３１にこの反転空間を提供することができる。 As shown in FIG. 3, the bottom of the post 20 is provided with a groove 21 extending from the bottom to the top of the post 20, and the groove 21 is provided corresponding to the depression 31 of the reversing sheet 30. 21 provides an inversion space for the inversion of the recess 31 . As shown in FIG. 3, the recess 31 does not flip, but remains connected to the conductive member 40, and when the voltage inside the battery is too high, the recess 31 flips up, i.e., the recess 31 faces up. It is recessed to separate the recess 31 and the conductive member 40 , at this time a preset space above the recess 31 is required so that the recess 31 can be recessed upward, thus the bottom of the post 20 . This inversion space can be provided for the recessed portion 31 by providing the recessed groove 21 in the recessed portion 31 .

好ましくは、反転シート３０は例えばアルミニウムシートなどの変形しやすい弾性材質であってもよい。 Preferably, the reversing sheet 30 may be made of a deformable elastic material such as an aluminum sheet.

図３に示すように、反転シート３０の窪み部３１は反転シート３０の中心に設けられ、反転シート３０の縁部はポスト２０の底部に当接する。反転シート３０の中心は薄いため、反転しやすく、反転シート３０のエッジは厚いため、ポスト２０に当接しやすい。 As shown in FIG. 3, the recess 31 of the reversing sheet 30 is provided in the center of the reversing sheet 30 and the edge of the reversing sheet 30 abuts the bottom of the post 20 . Since the center of the reversing sheet 30 is thin, it is easily reversed.

導電部材４０には一回りの溶断孔４１が設けられており、一回りの溶断孔４１が設けられているということは溶断孔４１が複数あり、多くの溶断孔４１が一回りするという意味であり、これにより電池内の気圧が予め設定された値に達した時に、窪み部３１が力を受けて導電部材４０を溶断孔４１で引き切り、窪み部３１と導電部材４０との接続を切断し、停電を実現する。このような溶断孔４１を設ける停電方式は窪み部３１と導電部材４０が固定接続される時に適用し、他の実施例において、窪み部３１と導電部材４０は接触接続のみであってもよく、つまり窪み部３１は導電部材４０に当接して導電部材４０と接触しているに過ぎず、反転すると、窪み部３１は導電部材４０から離脱する。溶断孔４１を設けることは電池内の気圧が溶断孔４１を透過して窪み部３１に伝達されることにさらに有利であり、電池内の気圧を溶断孔４１から窪み部３１の底部に貫通させ、窪み部３１が電池内の気圧の上昇に応じて反転しやすい。 The conductive member 40 is provided with a single fusing hole 41, and the provision of a single fusing hole 41 means that there are a plurality of fusing holes 41, and many fusing holes 41 make one turn. As a result, when the air pressure inside the battery reaches a preset value, the recessed portion 31 receives force, and the conductive member 40 is cut off by the fusing hole 41, and the connection between the recessed portion 31 and the conductive member 40 is cut. power outage. Such a blackout method with the fusing hole 41 is applied when the recess 31 and the conductive member 40 are fixedly connected. In other words, the recessed portion 31 is only in contact with the conductive member 40 by contacting the conductive member 40 , and the recessed portion 31 is separated from the conductive member 40 when inverted. The provision of fusing hole 41 is further advantageous in that the air pressure in the battery passes through fusing hole 41 and is transmitted to recessed portion 31 , and the air pressure in the battery penetrates from fusing hole 41 to the bottom of recessed portion 31 . , the depression 31 is likely to be reversed in response to an increase in the air pressure inside the battery.

例示的に、窪み部３１の底部と導電部材４０との接続方式はリベッティング、螺着及び溶接のうちの１種類又は複数種類であってもよく、窪み部３１を導電部材４０に固定接続させ、電池内部の気圧が大きすぎる時、窪み部３１が導電部材４０に固定接続されるため、窪み部３１が反転する時に導電部材４０を引っ張って導電部材４０を溶断孔４１で引き切ることができる。溶断孔４１は一回りの環状溝に置換されてもよい。 For example, the connection between the bottom of the recess 31 and the conductive member 40 may be one or more of riveting, screwing and welding, and the recess 31 is fixedly connected to the conductive member 40; When the air pressure inside the battery is too high, the recessed part 31 is fixedly connected to the conductive member 40, so that the conductive member 40 can be pulled out by the fusing hole 41 when the recessed part 31 is reversed. The fusing hole 41 may be replaced with a single annular groove.

好ましくは、窪み部３１の底部には接続柱３１１が設けられ、導電部材４０の接続柱３１１に対応する位置には接続孔４２が設けられ、接続柱３１１が接続孔４２内に差し入れて溶接して固定される。接続柱３１１と接続孔４２の嵌合構造が設けられることで、嵌合面を増加させるため、窪み部３１と導電部材４０を溶接することに有利である。例示的には、接続柱３１１の周囲には導電部材４０の頂部に当接する一回りの段差面がさらに設けられ、嵌合面を増加させ、溶接しやすい。また、接続孔４２を設けることにより、電池内部の気圧を直接窪み部３１に作用させ、窪み部３１が電池内の気圧をよりよく感知しやすくなり、反転停電を実現する。 Preferably, a connecting post 311 is provided at the bottom of the recessed portion 31, a connecting hole 42 is provided at a position corresponding to the connecting post 311 of the conductive member 40, and the connecting post 311 is inserted into the connecting hole 42 and welded. fixed. By providing the fitting structure of the connection post 311 and the connection hole 42 , the fitting surface is increased, which is advantageous for welding the recessed portion 31 and the conductive member 40 . Illustratively, the circumference of the connection post 311 is further provided with a round stepped surface that contacts the top of the conductive member 40 to increase the mating surface and facilitate welding. In addition, by providing the connection hole 42, the air pressure inside the battery directly acts on the recessed part 31, so that the recessed part 31 can more easily sense the air pressure inside the battery, realizing a reversal power failure.

図３に示すように、導電部材４０には薄肉部４３が設けられ、薄肉部４３の厚さは導電部材４０の厚さよりも薄く、導電部材４０の厚さは導電部材４０の最大厚さを指してもよく、溶断孔４１及び接続孔４２は薄肉部４３に設けられ、すなわち薄肉部４３は非常に薄く、薄肉部４３に溶断孔４１が設けられることで窪み部３１が反転する時に導電部材４０を引き切りやすくなる。薄肉部４３の厚みは、設けられた停電気圧値と、薄肉部４３を引き切る引切力に基づいて算出される。 As shown in FIG. 3 , the conductive member 40 is provided with a thin portion 43 , the thickness of the thin portion 43 is thinner than the thickness of the conductive member 40 , and the thickness of the conductive member 40 is equal to the maximum thickness of the conductive member 40 . The fusing hole 41 and the connecting hole 42 are provided in the thin portion 43. In other words, the thin portion 43 is very thin. It becomes easier to pull off 40. The thickness of the thin portion 43 is calculated based on the provided blackout air pressure value and the tearing force for tearing the thin portion 43 .

図２～図４を参照し、動力電池蓋板１００はゴムパッド６０及びシールリング７０をさらに含む。ゴムパッド６０はトップカバーシート１０の底部に設けられ、図３に示すように、導電部材４０はゴムパッド６０に設けられ、ゴムパッド６０には導電部材４０を係着するための係着孔が設けられ、導電部材４０はこの係着孔内に設けられ、係着孔を設けて導電部材４０を係着することにより、さらに導電部材４０の縁部をゴムパッド６０によって被覆させ、導電部材４０とトップカバーシート１０を仕切らせ、絶縁を実現することができる。シールリング７０はポスト２０及び反転シート３０の底部のエッジ箇所に敷いて設けられ、これによりポスト２０及び反転シート３０の底部をトップカバーシート１０と仕切らせ、絶縁を実現する。 2 to 4, the power battery cover plate 100 further includes a rubber pad 60 and a seal ring 70. As shown in FIG. The rubber pad 60 is provided on the bottom of the top cover sheet 10, the conductive member 40 is provided on the rubber pad 60 as shown in FIG. The conductive member 40 is provided in the engagement hole, and by providing the engagement hole and engaging the conductive member 40, the edge of the conductive member 40 is further covered with the rubber pad 60, and the conductive member 40 and the top cover sheet are covered. 10 can be partitioned to achieve insulation. A seal ring 70 is laid over the bottom edges of the posts 20 and the reversing sheet 30 to separate the bottoms of the posts 20 and the reversing sheet 30 from the top cover sheet 10 to achieve insulation.

図２及び図４に示すように、動力電池蓋板１００は防爆シート８０をさらに含み、防爆シート８０はゴムパッド６０の上に設けられ、例示的には、ゴムパッド６０の防爆シート８０に対応する位置に排気孔６１が設けられることにより電池内の気圧が防爆シート８０に伝達され、気圧が高すぎると、防爆シート８０を破り、圧抜きをして爆発を防止することを実現する。トップカバーシート１０の防爆シート８０に対応する位置に圧抜き貫通孔１２が設けられ、圧抜き貫通孔１２の上方には粘着フィルム９０がカバーされ、電池内の気圧が高すぎると、ガスが防爆シート８０を破った後、粘着フィルム９０を押し開け、圧抜き貫通孔１２から排出し、降圧を実現し、爆発を防止する。 As shown in FIGS. 2 and 4 , the power battery cover plate 100 further includes an explosion-proof sheet 80 , which is provided on the rubber pad 60 . An air pressure in the battery is transmitted to the explosion-proof sheet 80 by providing an exhaust hole 61 in the battery. A pressure release through hole 12 is provided at a position corresponding to the explosion-proof sheet 80 of the top cover sheet 10, and an adhesive film 90 is covered above the pressure release through hole 12. If the air pressure inside the battery is too high, the gas will not explode. After tearing the sheet 80, the adhesive film 90 is pushed open and discharged from the depressurization through-hole 12 to reduce the pressure and prevent explosion.

本願は上述の動力電池蓋板１００を含む動力電池をさらに提供し、動力電池は上述の動力電池蓋板１００を含むため、少なくとも上述の動力電池蓋板１００が有する有益な効果を有し、ここで重複して説明しない。 The present application further provides a power battery comprising the above power battery cover plate 100, the power battery comprising the above power battery cover plate 100, so as to have at least the beneficial effects of the above power battery cover plate 100, and here Do not repeat explanations in

本願の記載において、他の明確な規定と限定がない限り、用語「連結」、「接続」、「固定」は、広義に解釈すべきであり、例えば、固定接続してもよいし、着脱可能に接続してもよいし、一体であってもよく、機械的に接続されてもよいし、電気的に接続されてもよく、直接的に接してもよいし、中間媒体を介して間接的に接してもよく、２つの素子内部の連通又は２つの素子の相互作用関係であってもよい。当業者であれば、具体的な状況によって上述する用語の本実用新案における具体的な意味を理解することができる。 In the description of the present application, the terms "coupling", "connection", and "fixation" should be interpreted broadly, unless otherwise clearly specified and limited, and may be, for example, a fixed connection or a detachable connection. may be connected to, may be integral with, may be mechanically connected, may be electrically connected, may be in direct contact, or may be indirectly through an intermediate medium. may be in contact with each other, communication between the two elements, or interaction between the two elements. A person skilled in the art can understand the specific meaning of the above-mentioned terms in this utility model according to the specific situation.

本願において、他の明確な規定と限定がない限り、第１特徴が第２特徴の「上」又は「下」であることは、第１特徴及び第２特徴が直接に接触することを含んでもよいし、第１特徴及び第２特徴が直接に接触せずにそれらの間の他の特徴によって接触することを含んでもよい。また、第１特徴が第２特徴の「上」、「上方」、及び「上面」であることは、第１特徴が第２特徴の直上及び斜め上にあることを含む、又は、第１特徴の水平の高さが第２特徴よりも高いことのみを意味する。第１特徴が第２特徴の「下」、「下方」、及び「下面」であることは、第１特徴が第２特徴の直下及び斜め下にあることを含み、又は、第１特徴の水平の高さが第２特徴よりも低いことのみを意味する。 In this application, unless otherwise expressly specified and limited, references to a first feature being "above" or "below" a second feature include direct contact between the first and second features. Alternatively, the first feature and the second feature may not be in direct contact, but may be in contact with another feature therebetween. In addition, that the first feature is "above", "above", and "upper surface" of the second feature includes that the first feature is directly above and obliquely above the second feature, or is higher than the second feature. References to a first feature being "below", "below", and "below" a second feature include that the first feature is directly below and diagonally below the second feature, or horizontally above the first feature. is less than the second feature.

本実施例の説明において、用語「上」、「下」、「右」等の方位又は位置関係は、図面に示した方位又は位置関係に基づいたものであり、説明や操作の簡略化ためのものだけであり、指された装置又は要素が特定の方位を有する必要があり、特定の方位で構造及び操作することを指示又は暗示するものではない、従って、本願への規制と解釈してはならない。また、用語「第１」、「第２」は説明上区別するためだけに用いられ、特別な意味はない。 In the description of the present embodiment, orientations or positional relationships such as the terms “upper”, “lower”, “right” are based on the orientations or positional relationships shown in the drawings, and are used to simplify explanations and operations. does not indicate or imply that the indicated device or element must have a particular orientation, or be constructed and operated in a particular orientation, and therefore should not be construed as a restriction on the present application. not. Also, the terms "first" and "second" are used only for the sake of distinction in explanation and have no special meaning.

１００ 動力電池蓋板
１０ トップカバーシート
２０ ポスト
３０ 反転シート
４０ 導電部材
５０ ゴムスリーブ
６０ ゴムパッド
７０ シールリング
８０ 防爆シート
９０ 粘着フィルム
１１ ローリングエッジ
１２ 圧抜き貫通孔
２１ 凹溝
３１ 窪み部
４１ 溶断孔
４２ 接続孔
４３ 薄肉部
６１ 排気孔
３１１ 接続柱 100 power battery cover plate 10 top cover sheet 20 post 30 reversing sheet 40 conductive member 50 rubber sleeve 60 rubber pad 70 seal ring 80 explosion-proof sheet 90 adhesive film 11 rolling edge 12 pressure release through hole 21 concave groove 31 depression 41 fusing hole 42 connection Hole 43 Thin portion 61 Exhaust hole 311 Connection post

Claims (10)

トップカバーシート（１０）及び２つのポスト（２０）であって、２つの前記ポスト（２０）は前記トップカバーシート（１０）に穿設され、前記トップカバーシート（１０）と前記ポスト（２０）との接続箇所にローリングエッジ（１１）が設けられる、トップカバーシート（１０）及び２つのポスト（２０）と、
２つの前記ポスト（２０）のうちの少なくとも１つの前記ポスト（２０）の底部に設けられる停電保護デバイスとを含み、前記停電保護デバイスは、
前記ポスト（２０）の底部に接続され、前記ポスト（２０）から離れる方向に凹む窪み部（３１）が設けられる反転シート（３０）と、
前記窪み部（３１）の底部に接続される導電部材（４０）とを含み、
前記反転シート（３０）の前記窪み部（３１）は、電池内の気圧が予め設定された値に達する時に前記導電部材（４０）との接続を切断するように前記ポスト（２０）に反転可能である、
動力電池蓋板。 A top cover sheet (10) and two posts (20), wherein the two posts (20) are drilled in the top cover sheet (10), the top cover sheet (10) and the posts (20) a top cover sheet (10) and two posts (20) provided with a rolling edge (11) at the point of connection with
a power failure protection device provided at the bottom of at least one of the two posts (20), the power failure protection device comprising:
a reversing sheet (30) connected to the bottom of the post (20) and provided with a recess (31) recessed in a direction away from the post (20);
a conductive member (40) connected to the bottom of the recess (31);
The indentation (31) of the reversing sheet (30) is reversible to the post (20) to disconnect the conductive member (40) when the air pressure in the battery reaches a preset value. is
Power battery cover plate. 前記ポスト（２０）の底部には前記ポスト（２０）の底部から頂部に延出する凹溝（２１）が設けられ、前記凹溝（２１）は前記反転シート（３０）の前記窪み部（３１）に対応して設けられ、前記凹溝（２１）は前記窪み部（３１）の反転に反転空間を提供するように設けられている、
請求項１に記載の動力電池蓋板。 The bottom of the post (20) is provided with a groove (21) extending from the bottom to the top of the post (20). ), and the groove (21) is provided to provide an inversion space for inversion of the recess (31),
The power battery cover plate of claim 1. 前記導電部材（４０）には周方向に沿って複数の溶断孔（４１）が設けられ、前記窪み部（３１）は、電池内の気圧が予め設定された値に達すると力を受けて反転する時、前記窪み部（３１）と前記導電部材（４０）との接続を切断するように前記導電部材（４０）を前記溶断孔（４１）で引き切るように設けられている、
請求項１に記載の動力電池蓋板。 A plurality of fusing holes (41) are provided in the conductive member (40) along the circumferential direction. The fusing hole (41) is provided so as to cut the conductive member (40) so as to cut the connection between the recess (31) and the conductive member (40) when doing so,
The power battery cover plate of claim 1. 前記窪み部（３１）の底部と前記導電部材（４０）との接続方式はリベッティング、螺着及び溶接のうちの１種類又は複数種類である、
請求項３に記載の動力電池蓋板。 The connection method between the bottom of the recess (31) and the conductive member (40) is one or more of riveting, screwing and welding.
The power battery cover plate according to claim 3. 前記窪み部（３１）の底部と前記導電部材（４０）との接続方式は当接である、
請求項１に記載の動力電池蓋板。 The connection method between the bottom of the recess (31) and the conductive member (40) is contact.
The power battery cover plate of claim 1. 前記窪み部（３１）の底部には接続柱（３１１）が設けられ、前記導電部材（４０）上の前記接続柱（３１１）に対応する位置に接続孔（４２）が設けられ、前記接続柱（３１１）は前記接続孔（４２）内に差し入れて前記接続孔（４２）と溶接されるように設けられている、
請求項４に記載の動力電池蓋板。 A connection post (311) is provided at the bottom of the recess (31), and a connection hole (42) is provided at a position corresponding to the connection post (311) on the conductive member (40). (311) is provided to be inserted into the connection hole (42) and welded to the connection hole (42),
The power battery cover plate according to claim 4. 前記導電部材（４０）には薄肉部（４３）が設けられ、前記薄肉部（４３）の厚さは前記導電部材（４０）の厚さよりも小さく、前記溶断孔（４１）は前記薄肉部（４３）に設けられている、
請求項３に記載の動力電池蓋板。 The conductive member (40) is provided with a thin portion (43), the thickness of the thin portion (43) is smaller than the thickness of the conductive member (40), and the fusing hole (41) is the thin portion (43). 43) provided in
The power battery cover plate according to claim 3. 前記トップカバーシート（１０）の底部に設けられ、前記導電部材（４０）が設けられたゴムパッド（６０）と、
前記ポスト（２０）と前記トップカバーシート（１０）を遮断して絶縁させるように前記ポスト（２０）のエッジに嵌設されるゴムスリーブ（５０）と、
前記ポスト（２０）及び前記反転シート（３０）の底部のエッジに敷いて設けられるシールリング（７０）とをさらに含む、
請求項１に記載の動力電池蓋板。 a rubber pad (60) provided on the bottom of the top cover sheet (10) and provided with the conductive member (40);
a rubber sleeve (50) fitted to the edge of the post (20) to isolate and insulate the post (20) and the top cover sheet (10);
a sealing ring (70) provided on the edge of the bottom of the post (20) and the reversing sheet (30),
The power battery cover plate of claim 1. 防爆シート（８０）であって、前記ゴムパッド（６０）に設けられ、前記トップカバーシート（１０）の前記防爆シート（８０）に対応する位置に圧抜き貫通孔（１２）が設けられ、前記圧抜き貫通孔（１２）の上方に粘着フィルム（９０）がカバーされる防爆シート（８０）をさらに含む、
請求項８に記載の動力電池蓋板。 The explosion-proof sheet (80) is provided in the rubber pad (60), and the top cover sheet (10) is provided with a pressure release through-hole (12) at a position corresponding to the explosion-proof sheet (80). Further comprising an explosion-proof sheet (80) covered with an adhesive film (90) above the through-hole (12),
The power battery cover plate according to claim 8. 請求項１～請求項９のいずれか一項に記載の動力電池蓋板を含む、
動力電池。 Including the power battery cover plate according to any one of claims 1 to 9,
power battery.
JP2021600163U 2020-03-20 2020-05-06 Power battery cover plate and power battery Active JP3241009U (en)

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