WO2020134799A1 - 一种电池模块 - Google Patents

一种电池模块 Download PDF

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Publication number
WO2020134799A1
WO2020134799A1 PCT/CN2019/120880 CN2019120880W WO2020134799A1 WO 2020134799 A1 WO2020134799 A1 WO 2020134799A1 CN 2019120880 W CN2019120880 W CN 2019120880W WO 2020134799 A1 WO2020134799 A1 WO 2020134799A1
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WO
WIPO (PCT)
Prior art keywords
clamping
clamping portion
battery module
sampling
module according
Prior art date
Application number
PCT/CN2019/120880
Other languages
English (en)
French (fr)
Inventor
朱贤春
曹华
王冲
钱木
吴是炘
Original Assignee
宁德时代新能源科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Priority to US16/760,166 priority Critical patent/US11641046B2/en
Priority to ES19870046T priority patent/ES2899629T3/es
Priority to EP21193753.7A priority patent/EP3944398B1/en
Priority to EP21193751.1A priority patent/EP3944397B1/en
Priority to EP19870046.0A priority patent/EP3699979B1/en
Publication of WO2020134799A1 publication Critical patent/WO2020134799A1/zh
Priority to US17/148,601 priority patent/US11050125B1/en

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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
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/517—Methods for interconnecting adjacent batteries or cells by fixing means, e.g. screws, rivets or bolts
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • 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
    • 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
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • 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
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
    • 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
    • H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
    • H01R4/184—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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 present application relates to the field of energy storage device production, in particular to a battery module.
  • the current voltage sampling method is mainly to directly fix the collected wiring harness on the connecting piece by ultrasonic welding, aluminum wire bonding welding or laser welding.
  • the strength of ultrasonic welding and aluminum wire bonding welding is low. Vibration and shock easily lead to wire harness conductor breakage and failure. The overall safety and reliability are low.
  • Laser welding requires high flatness of the connecting piece. The peel strength after welding is low. It is also prone to failure under long-term battery use and vibration shock. problem.
  • a battery module including:
  • connection piece the electrode terminals between adjacent battery cells are connected through the connection piece
  • the clamping sampling structure includes a wiring part and a clamping structure of a fixed wire harness. One end of the clamping structure is connected to the wiring part, and the other end of the clamping structure is clamped to the connecting piece.
  • the clamping structure includes a first clamping portion and a second clamping portion, one end of the first clamping portion is fixedly connected to one end of the second clamping portion, and the other of the first clamping portion One end and the other end of the second clamping portion form an opening portion of the clamping structure, and one end of the first clamping portion and the second clamping portion fixedly connected to the wiring portion.
  • the first clamping portion and the second clamping portion are integrally formed.
  • the connecting piece is provided with a sampling installation position, and the clamping structure is clamped at the sampling installation position.
  • the sampling installation position is provided on the side of the connecting piece facing the harness.
  • the sampling installation position is formed by the connection piece recessed toward the battery top cover, so that when the clamping sampling structure is clamped at the sampling installation position, the clamping sampling structure is attached to the battery top cover.
  • the first clamping portion and the second clamping portion are provided in a body, and the first clamping portion is provided with an engaging portion for engaging the second clamping portion, or the second clamping portion There is a holding portion for holding the first clamping portion, and the holding portion is located at one end of the first clamping portion and the second clamping portion that are fixedly connected.
  • the holding portion includes two side flaps respectively connected to both sides of the first clamping portion or the second clamping portion, the side wings are L-shaped, and include a first arm and a second arm , The second arm is connected to the first clamping portion or the second clamping portion through the first arm, and the second arms of the two side wings extend in the direction of approaching each other.
  • the first clamping portion and the second clamping portion form outwardly separated guide openings at the ends of the opening portions.
  • the first clamping portion is provided with a bump structure on the side of the opening facing the second clamping portion, or the second clamping portion is facing the first clamping portion at the opening
  • a bump structure is provided on one side
  • the sampling installation position is provided with a connecting hole, and the convex block structure is matched with the connecting hole.
  • the number of connection holes is more than two.
  • a guide groove is further provided on the sampling installation position, and the guide groove extends from the end of the sampling installation position toward the inside of the connecting piece, so that the first clamping portion or the second clamping portion
  • the bump structure can slide along the guide groove.
  • the cross-section of the wiring portion is a U-shaped structure to load the wiring harness in the wiring portion.
  • the information collection wiring harness in the battery module is clamped on the connecting piece by clamping and sampling structure, replacing the wiring harness is directly welded on the connecting piece, and the wiring harness is directly fixed on the wiring part and then clamped by the clamping structure on The signal is collected on the connection piece, which effectively improves the connection strength between the information collection harness and the connection piece.
  • FIG. 1 is a schematic diagram of the overall structure of a battery module provided by an embodiment of the present application.
  • FIG. 2 is a state diagram of a clamping sampling structure of a battery module clamped on a connecting piece provided by an embodiment of the present application;
  • connection piece of a battery module provided by an embodiment of the present application
  • FIG. 4 is a schematic diagram of an enlarged structure at A in FIG. 3;
  • FIG. 5 is an isometric view of a clamping sampling structure of a battery module provided by an embodiment of the present application.
  • FIG. 6 is an isometric view of a clamping sampling structure of a battery module provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a bump structure provided in a clamping sampling structure of a battery module according to an embodiment of the present application.
  • the present application provides a battery module, including: two or more battery cells 1, a connecting piece 2 and a clamping sampling structure 3, the battery cells 1 are arranged in an arrangement, that is, more than two batteries Monomer 1 is arranged side by side.
  • the battery cell 1 has an electrode terminal 11, and the electrode terminals 11 between adjacent battery cells 1 are connected by a connecting piece 2;
  • the clamping sampling structure 3 includes a wiring part 37 that fixes the wire harness 4 and the clamping structure, the clamping structure Is connected to the connecting portion 37 at one end, and the other end of the clamping structure is clamped to the connecting piece 2.
  • the wiring part 37 is used to fix the wiring harness 4 for information collection, and the clamping structure is used to clamp the clamping sampling structure 3 on the connecting piece 2.
  • the clamping structure and the wiring part 37 are both information collection conductors, and the information collection wiring harness 4 passes through The wiring part 37 and the clamping structure obtain the voltage information on the connecting piece 2 to know the voltage between the battery cells 1 in the battery module.
  • the clamping structure includes a first clamping portion 31 and a second clamping portion 32 on both sides of the clamping structure, that is, the clamping structure includes the first The clamping part 31 and the second clamping part 32.
  • One end of the first clamping portion 31 is fixedly connected to one end of the second clamping portion 32, and the other end of the first clamping portion 31 and the other end of the second clamping portion 32 form an opening 33 of the clamping structure.
  • One end of the fixed connection between the clamping portion 31 and the second clamping portion 32 is connected to the wiring portion 37.
  • first clamping portion 31 and the second clamping portion 32 are both sheet-like structures and the two have the same size.
  • the other end of the first clamping portion 31 and the other end of the second clamping portion 32 extend in the same direction, and the opening 33 formed by the first clamping portion 31 and the second clamping portion 32 is used for the clamping structure It is fixed on the connecting piece 2.
  • the opening 33 formed between the first clamping portion 31 and the second clamping portion 32 may be closed when not in use, that is, at least part of the first clamping portion 31 and at least part of the second clamping portion 32 When they are not in use, they are attached to each other; or the narrowest gap value of the opening 33 formed between the first clamping portion 31 and the second clamping portion 32 is smaller than the thickness value of the connecting piece 2, that is, the first The minimum distance between the first clamping portion 31 and the second clamping portion 32 is less than or equal to the thickness value of the connecting piece 2.
  • the operator separates the first clamping portion 31 and the second clamping portion 32 to open the opening 33 thereof, thereby clamping the clamping structure on the connecting piece 2.
  • the opening 33 formed between the first clamping portion 31 and the second clamping portion 32 is closed, or the opening 33 formed between the first clamping portion 31 and the second clamping portion 32 is the narrowest
  • the gap value of is smaller than the thickness value of the connecting piece 2, so when the clamping structure is clamped to the connecting piece 2, the clamping structure and the connecting piece 2 are fixed.
  • the first clamping portion 31 and the second clamping portion 32 are integrally formed.
  • the integrally formed first clamping portion 31 and the middle portion of the second clamping portion 32 are bent to form the opposing first clamping portion 31 and the second clamping portion 32, that is, the integrally formed first clamping portion 31 and the second
  • the clamping parts 32 are connected to each other through a bent portion.
  • the bending part is provided with a wiring part 37 for receiving the information collection wiring harness 4.
  • the first clamping part 31 and the second clamping part 32 opposite to each other form an opening 33 of the clamping structure after bending, that is, connected to each other through the bending part
  • the first clamping portion 31 and the second clamping portion 32 form an opening 33 of a clamping structure.
  • the first clamping portion 31 and the second clamping portion 32 are made of a tough material to ensure the elasticity of the opening 33 of the clamping structure.
  • the connecting piece 2 is provided with a sampling installation position 21, and the clamping structure is clamped at the sampling installation position 21.
  • the sampling installation position 21 is set at the side position of the connecting piece 2, that is, the sampling installation position 21 is set at the side of the connecting piece 2 facing the wire harness 4.
  • the sampling mounting position 21 provided on the connecting piece 2 of the sheet structure is an area recessed toward the battery top cover 12, that is, the sampling mounting position 21 is formed by the connecting piece 2 recessed toward the battery top cover 12.
  • the clamping and sampling structure 3 After the clamping and sampling structure 3 is clamped in the sampling installation position 21 of the connecting piece 2, the clamping and sampling structure 3 is attached to the battery top cover 12, and the wire harness 4 fixed on the connecting portion 37 of the clamping and sampling structure 3 can also be mounted on Above the battery top cover 12, the suspended wire harness 4 is prevented from being broken due to vibration during use of the battery module.
  • first clamping portion 31 and the second clamping portion 32 are provided separately, and the first clamping portion 31 is provided with an engaging portion 34 for engaging the second clamping portion 32, or
  • the second clamping portion 32 is provided with an engagement portion 34 for engaging the first clamping portion 31.
  • the engagement portion 34 is located at one end of the first clamping portion 31 and the second clamping portion 32 that is fixedly connected, that is, the first clamping portion
  • the other end of 31 and the other end of the second clamping portion 32 are connected to each other by a holding portion 34.
  • the holding portion 34 provided on the first holding portion 31 is two pieces of wings extending outward from the sides of the first holding portion 31 respectively. That is, the holding portion 34 provided on the first holding portion 31 includes Two side wings on both sides of a clamping portion 31.
  • the flanks are L-shaped, and the flanks include a first arm and a second arm. The second arm is connected to the first clamping portion 31 through the first arm, and the second arms of the two flanks extend in a direction approaching each other.
  • the two side flaps of the first clamping portion 31 hug in the direction of the second clamping portion 32, that is, the second clamping portion 32 is located at the two second Between the arm and the first clamping portion 31, the first clamping portion 31 and the second clamping portion 32 are fixed together.
  • the engaging portions 34 provided on the second clamping portion 32 are two pieces of wings extending outward from the sides of the second clamping portion 32 respectively, that is, the engaging portions 34 provided on the second clamping portion 32 include Two side wings on both sides of the second clamping portion 32.
  • the flanks are L-shaped.
  • the flanks include a first arm and a second arm.
  • the second arm is connected to the second clamping portion 32 through the first arm.
  • the second arms of the two flanks extend in a direction approaching each other.
  • the two side wings of the second clamping portion 32 hug in the direction of the first clamping portion 31, that is, the first clamping portion 31 is located at the two second Between the arm and the second clamping portion 32, the second clamping portion 32 and the first clamping portion 31 are fixed together.
  • the first clamping portion 31 and the second clamping portion 32 form outwardly separated guide openings 35 at the ends of the opening portion 33, that is, the first clamping portion 31 and the second clamping portion 32
  • the ends separated from each other extend in a direction away from each other to form a guide opening 35.
  • the function of the guide opening 35 is to facilitate the positioning of the clamping sampling structure 3 and the connecting piece 2. After the guiding opening 35 of the clamping sampling structure 3 is aligned with the connecting piece 2, the clamping sampling structure 3 faces the connecting piece The direction of 2 is pushed so that the clamping sampling structure 3 clamps the connecting piece 2.
  • the first clamping portion 31 is provided with a bump structure 36 on the side of the opening 33 facing the second clamping portion 32, that is, the first clamping portion 31 faces the second clamping portion 32
  • the surface is provided with a bump structure 36, or the second clamping portion 32 is provided with a bump structure 36 on the side of the opening 33 facing the first clamping portion 31, or the second clamping portion 32 faces the first clamping portion
  • a bump structure 36 is provided on the surface of 31; a connecting hole 23 is opened on the sampling installation site 21, and the bump structure 36 is adapted to the connecting hole 23.
  • the number of the connection holes 23 is more than two.
  • the number of bump structures 36 is two or more. The beneficial effect is that the clamping sampling structure 3 is fixed in a direction parallel to the connecting piece 2 to prevent the clamping sampling structure 3 from rotating in the connecting hole 23 of the connecting piece 2, thereby affecting the connection strength of the wire harness 4 on the connecting portion 37 .
  • a guide groove 22 is further provided on the sampling and mounting position 21.
  • the guide groove 22 extends from the end of the sampling and mounting position 21 toward the inside of the connecting piece 2, so that the first The bump structure 36 on a clamping portion 31 or the second clamping portion 32 can slide along the guide groove 22.
  • the role of the guide groove 22 is to facilitate the positioning of the bump structure 36 on the first clamping portion 31 or the second clamping portion 32, so that the bump structure on the first clamping portion 31 or the second clamping portion 32 36 can slide into the connecting hole 23 along the guide groove 22.
  • the number of connection holes 23 opened in the sampling installation position 21 is three, and the three connection holes 23 are distributed in a triangle, that is, the three connection holes 23 are not in the same straight line, accordingly, the first clip
  • one of the bump structures 36 of the clamping sampling structure 3 slides along the guide groove 22 until the three bump structures 36 are all locked in the corresponding connection holes 23 to complete the clamping Installation of sampling structure 3.
  • the cross section of the wiring part 37 is a U-shaped structure
  • the information collection harness 4 is loaded in the U-shaped groove wiring part 37, and then the two side walls of the U-shaped groove are pressed in opposite directions to be fixed Harness 4.
  • the two sides of the U-shaped wiring part 37 play a protective role for the wire harness 4 and provide a larger contact surface for the wire harness 4 and the clamping sampling structure 3 to enhance the connection strength of the wire harness 4.
  • the wiring part 37 may be a tubular structure, and the information collection harness 4 is fixed in the tubular structure, and then the tubular structure is pressed and deformed to fix the harness 4.

Abstract

本申请涉及了一种电池模块，包括：两个以上的电池单体，具有电极端子；连接片，所述相邻电池单体之间的电极端子通过所述连接片相连接；夹持采样结构，包括固定线束的接线部与夹持结构，所述夹持结构的一端与所述接线部相连接，所述夹持结构的另一端夹持于所述连接片。该电池模块中的信息采集线束通过夹持采样结构夹持在连接片上，替换了线束直接焊接于连接片上，将线束直接固定在接线部之后再通过夹持结构夹持于连接片上从而实现信号的采集，有效提高了信息采集线束与连接片之间的连接强度。

Description

一种电池模块
相关申请的交叉引用
本申请要求享有于2018年12月29日提交的名称为“一种电池模块”的中国专利申请第201822267068.2号的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请涉及储能器件的生产领域，尤其涉及一种电池模块。
背景技术
目前的电压采样方式主要是直接将采集信息的线束通过超声波焊接、铝丝键合焊接或者激光焊接的方式来固定在连接片上，超声波焊接以及铝丝键合焊接的强度较低，焊接后在模组振动冲击时易导致线束导体断裂失效，总体安全可靠性低，激光焊接对连接片的平面度要求较高，焊接后的剥离强度低，在电池长期循环使用和振动冲击下也存在易失效的问题。
申请内容
为此，需要提供一种电池模块，来解决信息采集线束与连接片之间固定困难的问题。
为实现上述目的，本申请提供了一种电池模块，包括：
两个以上的电池单体，具有电极端子；
连接片，相邻电池单体之间的电极端子通过连接片相连接；
夹持采样结构，包括固定线束的接线部与夹持结构，夹持结构的一端与接线部相连接，夹持结构的另一端夹持于连接片。
根据本申请一方面的实施方式，夹持结构包括第一夹持部与第二夹持部，第一夹持部的一端与第二夹持部的一端固定连接，第一夹持部的另一 端与第二夹持部的另一端形成夹持结构的开口部，第一夹持部与第二夹持部固定连接的一端与接线部相连。
根据本申请一方面前述任一实施方式，第一夹持部与第二夹持部一体成型。
根据本申请一方面前述任一实施方式，连接片上设置有采样安装位，夹持结构夹持于采样安装位。
根据本申请一方面前述任一实施方式，采样安装位设置于连接片朝向线束的侧边。
根据本申请一方面前述任一实施方式，采样安装位由连接片朝向电池顶盖凹陷形成，以使夹持采样结构夹持在采样安装位时，夹持采样结构贴合于电池顶盖。
根据本申请一方面前述任一实施方式，第一夹持部和第二夹持部分体设置，第一夹持部上设置有用于抱合第二夹持部的抱合部，或者第二夹持部上设置有用于抱合第一夹持部的抱合部，抱合部位于第一夹持部与第二夹持部的固定连接的一端。
根据本申请一方面前述任一实施方式，抱合部包括分别连接于第一夹持部或第二夹持部两侧边的两片侧翼，侧翼呈L形、并包括第一臂和第二臂，第二臂通过第一臂连接于第一夹持部或第二夹持部，两片侧翼的第二臂沿相互靠近的方向延伸成型。
根据本申请一方面前述任一实施方式，第一夹持部与第二夹持部在开口部末端形成向外分离的导向开口。
根据本申请一方面前述任一实施方式，第一夹持部在开口部朝向第二夹持部的一面上设置有凸块结构，或者第二夹持部在开口部朝向第一夹持部的一面上设置有凸块结构；
采样安装位上开设有连接孔，凸块结构与连接孔相适配。
根据本申请一方面前述任一实施方式，连接孔的个数为两个以上。
根据本申请一方面前述任一实施方式，采样安装位上还设置有导向槽，导向槽自采样安装位的端部朝向连接片内部延伸，以使第一夹持部或第二夹持部上的凸块结构能够沿导向槽滑动。
根据本申请一方面前述任一实施方式，接线部的截面为U字形结构，以将线束装载于接线部内。
在本申请实施例中，电池模块中的信息采集线束通过夹持采样结构夹持在连接片上，替换了线束直接焊接于连接片上，将线束直接固定在接线部之后再通过夹持结构夹持于连接片上从而实现信号的采集，有效提高了信息采集线束与连接片之间的连接强度。
附图说明
下面将参考附图来描述本申请示例性实施例的特征、优点和技术效果，其中的附图并未按照实际的比例绘制。
图1为本申请实施例提供的一种电池模块的整体结构示意图；
图2为本申请实施例提供的一种电池模块的夹持采样结构夹持于连接片上的状态图；
图3为本申请实施例提供的一种电池模块的连接片的结构示意图；
图4为图3中A处的放大结构示意图；
图5为本申请实施例提供的一种电池模块的夹持采样结构的轴测图；
图6为本申请实施例提供的一种电池模块的夹持采样结构的轴测图；
图7为本申请实施例提供的一种电池模块的夹持采样结构设置有凸块结构的示意图。
附图标记说明：
1、电池单体；
11、电极端子；
12、电池顶盖；
2、连接片；
21、采样安装位；
22、导向槽；
23、连接孔；
3、夹持采样结构；
31、第一夹持部；
32、第二夹持部；
33、开口部；
34、抱合部；
35、导向开口；
36、凸块结构；
37、接线部；
4、线束。
具体实施方式
为详细说明技术方案的技术内容、构造特征、所实现目的及效果，以下结合具体实施例并配合附图详予说明。
在本申请的描述中，除非另有明确的规定和限定，术语“第一”、“第二”、仅用于描述的目的，而不能理解为指示或暗示相对重要性；除非另有规定或说明，术语“连接”、“固定”等均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接，或电连接；可以是直接相连，也可以通过中间媒介间接相连。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在本发明中的具体含义。
本说明书的描述中，需要理解的是，本申请实施例所描述的“上”、“下”、“左”、“右”等方位词是以附图所示的角度来进行描述的，不应理解为对本申请实施例的限定。此外，在上下文中，还需要理解的是，当提到一个元件连接在另一个元件“上”或者“下”时，其不仅能够直接连接在另一个元件“上”或者“下”，也可以通过中间元件间接连接在另一个元件“上”或者“下”。
请参阅图1与图2，本申请提供一种电池模块，包括：两个以上的电池单体1，连接片2以及夹持采样结构3，电池单体1排列设置，即两个以上的电池单体1并排设置。电池单体1上具有电极端子11，相邻电池单体1之间的电极端子11通过连接片2相连接；夹持采样结构3包括固定线束4的接线部37与夹持结构，夹持结构的一端与接线部37相连接，夹持结构的另一端夹持于连接片2。接线部37用于固定信息采集的线束4，夹 持结构用于将该夹持采样结构3夹持于连接片2上，夹持结构与接线部37均为信息采集导体，信息采集线束4通过接线部37以及夹持结构获得连接片2上的电压信息，从而获知电池模块中各电池单体1之间的电压情况。
如图5至图7所示，在某些优选的实施例中，夹持结构包括位于夹持结构两侧的第一夹持部31与第二夹持部32，即夹持结构包括第一夹持部31和第二夹持部32。第一夹持部31的一端与第二夹持部32的一端固定连接，第一夹持部31的另一端与第二夹持部32的另一端形成夹持结构的开口部33，第一夹持部31与第二夹持部32的固定连接的一端与接线部37相连。
在这些实施例中，第一夹持部31以及第二夹持部32均为片状结构且二者的大小相同。第一夹持部31的另一端与第二夹持部32的另一端的延伸方向一致，由第一夹持部31以及第二夹持部32形成的开口部33用于将该夹持结构固定于连接片2上。
第一夹持部31以及第二夹持部32之间所形成的开口部33在未使用状态时可以是闭合的状态，即至少部分第一夹持部31和至少部分第二夹持部32在未使用状态时相互贴合；或者第一夹持部31与第二夹持部32之间形成的开口部33最窄的缝隙值小于连接片2的厚度值，即在未使用状态时第一夹持部31和第二夹持部32之间的最小距离小于或等于连接片2的厚度值。在夹持结构使用时，操作者分离第一夹持部31与第二夹持部32，使其开口部33张开，从而将该夹持结构夹设于连接片2上。由于第一夹持部31以及第二夹持部32之间所形成的开口部33是闭合的状态，或者第一夹持部31与第二夹持部32之间形成的开口部33最窄的缝隙值小于连接片2的厚度值，因此当该夹持结构夹持于连接片2时，夹持结构与连接片2之间得以固定。
在某些优选的实施例中，第一夹持部31与第二夹持部32一体成型。一体成型的第一夹持部31与第二夹持部32的中部弯折形成相对的第一夹持部31与第二夹持部32，即一体成型的第一夹持部31与第二夹持部32通过弯折部位相互连接。弯折部位设置接线部37用于接信息采集线束4， 弯折后相对的第一夹持部31与第二夹持部32形成夹持结构的开口部33，即通过弯折部位相互连接的第一夹持部31与第二夹持部32形成夹持结构的开口部33。第一夹持部31与第二夹持部32使用韧性材料制成，以保证夹持结构开口部33的弹性。
如图3和图4所示，在某些优选的实施例中，连接片2上设置有采样安装位21，夹持结构夹持于采样安装位21。为便于将夹持采样结构3安装于连接片2上，将采样安装位21设置于连接片2的侧边位置，即将采样安装位21设置于连接片2朝向线束4的侧边。片状结构的连接片2上设置的采样安装位21是朝向电池顶盖12方向凹陷的区域，即采样安装位21由连接片2朝向电池顶盖12凹陷形成。夹持采样结构3夹持在连接片2的采样安装位21后，夹持采样结构3贴合于电池顶盖12上方，固定于夹持采样结构3接线部37上的线束4也可以搭载在电池顶盖12的上方，防止悬空的线束4在该电池模块的使用过程中因振动而断裂。
在某些优选的实施例中，第一夹持部31和第二夹持部32分体设置，第一夹持部31上设置有用于抱合第二夹持部32的抱合部34，或者第二夹持部32上设置有用于抱合第一夹持部31的抱合部34，抱合部34位于第一夹持部31与第二夹持部32的固定连接的一端，即第一夹持部31另一端和第二夹持部32的另一端通过抱合部34相互连接。
设置在第一夹持部31上的抱合部34是从第一夹持部31的侧边分别向外延伸两片侧翼，即设置于第一夹持部31的抱合部34包括分别连接于第一夹持部31的两侧边的两片侧翼。侧翼呈L形，侧翼包括第一臂和第二臂，第二臂通过第一臂连接于第一夹持部31，两个侧翼的第二臂沿相互靠近的方向延伸成型。第二夹持部32与第一夹持部31贴合后，第一夹持部31的两片侧翼向第二夹持部32的方向抱合，即第二夹持部32位于两个第二臂和第一夹持部31之间，将第一夹持部31与第二夹持部32固定在一起。
设置在第二夹持部32上的抱合部34是从第二夹持部32的侧边分别向外延伸两片侧翼，即设置于第二夹持部32的抱合部34包括分别连接于第二夹持部32两侧边的两片侧翼。侧翼呈L形，侧翼包括第一臂和第二 臂，第二臂通过第一臂连接于第二夹持部32，两个侧翼的第二臂沿相互靠近的方向延伸成型。第一夹持部31与第二夹持部32贴合后，第二夹持部32的两片侧翼向第一夹持部31的方向抱合，即第一夹持部31位于两个第二臂和第二夹持部32之间，将第二夹持部32与第一夹持部31固定在一起。
在某些优选的实施例中，第一夹持部31与第二夹持部32在开口部33末端形成向外分离的导向开口35，即第一夹持部31和第二夹持部32相互分离的一端沿彼此远离的方向延伸以形成导向开口35。导向开口35的作用是便于定位该夹持采样结构3与连接片2之间的位置，该夹持采样结构3的导向开口35对准连接片2后，将该夹持采样结构3朝向连接片2的方向推送使得夹持采样结构3夹住连接片2即可。
在某些优选的实施例中，第一夹持部31在开口部33朝向第二夹持部32的一面上设置有凸块结构36，即第一夹持部31朝向第二夹持部32的表面设置有凸块结构36，或者第二夹持部32在开口部33朝向第一夹持部31的一面上设置有凸块结构36，或者第二夹持部32朝向第一夹持部31的表面设置有凸块结构36；采样安装位21上开设有连接孔23，凸块结构36与连接孔23相适配。当该夹持采样结构3夹持在连接片2上后，第一夹持部31或者第二夹持部32上设置的凸块结构36卡设于连接孔23中，能够有效防止夹持采样结构3从连接片2上脱离出来。
在一些可选的实施例中，连接孔23的个数为两个以上。凸块结构36的个数为两个以上。其有益效果在于，在与连接片2平行的方向固定该夹持采样结构3，防止夹持采样结构3在连接片2的连接孔23中转动，从而影响线束4在接线部37上的连接强度。
如图3与图4所示，在一些可选的实施例中，采样安装位21上还设置有导向槽22，导向槽22自采样安装位21的端部朝向连接片2内部延伸，使得第一夹持部31或第二夹持部32上的凸块结构36能够沿导向槽22滑动。导向槽22所起到的作用是便于第一夹持部31或第二夹持部32上的凸块结构36定位，使得第一夹持部31或者第二夹持部32上的凸块结构36能够沿着导向槽22滑动至卡入连接孔23中。
在一些可选的实施例中，采样安装位21上开设的连接孔23个数为三个，三个连接孔23呈三角分布，即三个连接孔23不在同一直线，相应地，第一夹持部31或者第二夹持部32上的凸块结构36个数也是三个，其中一个连接孔23与导向槽22的末端位置相对应，且该连接孔23与导向槽22可贯穿，或者在其他实施例中，该连接孔23与导向槽22不贯穿。在该实施例中，夹持采样结构3的其中一个凸块结构36沿着导向槽22滑动至三个凸块结构36全部卡设于与之相对应的连接孔23中，以完成该夹持采样结构3的安装。
在某些优选的实施例中，接线部37的截面为U字形结构，信息采集线束4装载于U形槽接线部37内，再将U形槽的两侧壁朝相对的方向压紧以固定线束4。U形接线部37的两侧对线束4起到了保护作用，为线束4与该夹持采样结构3提供较大的接触面，增强线束4的连接强度。在其他实施例中，接线部37可以是管状结构，将信息采集线束4固定于管状结构内，再将管状结构挤压变形以固定线束4。
本领域技术人员应能理解，上述实施例均是示例性而非限制性的。在不同实施例中出现的不同技术特征可以进行组合，以取得有益效果。本领域技术人员在研究附图、说明书及权利要求书的基础上，应能理解并实现所揭示的实施例的其他变化的实施例。在权利要求书中，术语“包括”并不排除其他装置或步骤；物品没有使用数量词修饰时旨在包括一个/种或多个/种物品，并可以与“一个/种或多个/种物品”互换使用”。权利要求中的任何附图标记均不应被理解为对保护范围的限制。权利要求中出现的多个部分的功能可以由一个单独的硬件或软件模块来实现。某些技术特征出现在不同的从属权利要求中并不意味着不能将这些技术特征进行组合以取得有益效果。

Claims (13)

  1. 一种电池模块，包括：
    两个以上的电池单体，具有电极端子；
    连接片，所述相邻电池单体之间的电极端子通过所述连接片相连接；
    夹持采样结构，包括固定线束的接线部与夹持结构，所述夹持结构的一端与所述接线部相连接，所述夹持结构的另一端夹持于所述连接片。
  2. 根据权利要求1所述的电池模块，其中，所述夹持结构包括第一夹持部与第二夹持部，所述第一夹持部的一端与第二夹持部的一端固定连接，所述第一夹持部的另一端与第二夹持部的另一端形成夹持结构的开口部，所述第一夹持部与第二夹持部的固定连接的一端与所述接线部相连。
  3. 根据权利要求2所述的电池模块，其中，所述第一夹持部与第二夹持部一体成型。
  4. 根据权利要求1所述的电池模块，其中，所述连接片上设置有采样安装位，所述夹持结构夹持于所述采样安装位。
  5. 根据权利要求4所述的电池模块，其中，所述采样安装位设置于所述连接片朝向所述线束的侧边。
  6. 根据权利要求4所述的电池模块，其中，所述采样安装位由所述连接片朝向电池顶盖凹陷形成，以使所述夹持采样结构夹持在所述采样安装位时，所述夹持采样结构贴合于所述电池顶盖。
  7. 根据权利要求2所述的电池模块，其中，所述第一夹持部和所述第二夹持部分体设置；
    所述第一夹持部上设置有用于抱合第二夹持部的抱合部，
    或者所述第二夹持部上设置有用于抱合第一夹持部的抱合部，所述抱合部位于第一夹持部与第二夹持部的固定连接的一端。
  8. 根据权利要求7所述的电池模块，其中，所述抱合部包括分别连接于所述第一夹持部或第二夹持部两侧边的两片侧翼，所述侧翼呈L形、并包括第一臂和第二臂，所述第二臂通过所述第一臂连接于所述第一夹持部或所述第二夹持部，两片所述侧翼的所述第二臂沿相互靠近的方向延伸成型。
  9. 根据权利要求2所述的电池模块，其中，所述第一夹持部与第二夹持部在开口部末端形成向外分离的导向开口。
  10. 根据权利要求2所述的电池模块，其中，所述第一夹持部在开口部朝向第二夹持部的一面上设置有凸块结构，或者所述第二夹持部在开口部朝向第一夹持部的一面上设置有凸块结构；
    所述采样安装位上开设有连接孔，所述凸块结构与连接孔相适配。
  11. 根据权利要求10所述的电池模块，其中，所述连接孔的个数为两个以上。
  12. 根据权利要求10所述的电池模块，其中，所述采样安装位上还设置有导向槽，所述导向槽自采样安装位的端部朝向连接片内部延伸，以使所述第一夹持部或第二夹持部上的凸块结构能够沿所述导向槽滑动。
  13. 根据权利要求1所述的电池模块，其中，所述接线部的截面为U字形结构，以将所述线束装载于所述接线部内。
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US11641046B2 (en) 2023-05-02
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