WO2020134981A1 - 电路板、电路板使用方法、电池模组及车辆 - Google Patents

电路板、电路板使用方法、电池模组及车辆 Download PDF

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Publication number
WO2020134981A1
WO2020134981A1 PCT/CN2019/123696 CN2019123696W WO2020134981A1 WO 2020134981 A1 WO2020134981 A1 WO 2020134981A1 CN 2019123696 W CN2019123696 W CN 2019123696W WO 2020134981 A1 WO2020134981 A1 WO 2020134981A1
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WIPO (PCT)
Prior art keywords
branch
pad
circuit board
sampling
fuse
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Ceased
Application number
PCT/CN2019/123696
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English (en)
French (fr)
Inventor
王冲
曹华
朱贤春
钱木
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Contemporary Amperex Technology Co Ltd
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Contemporary Amperex Technology Co Ltd
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Publication date
Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Publication of WO2020134981A1 publication Critical patent/WO2020134981A1/zh
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Ceased legal-status Critical Current

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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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0213—Electrical arrangements not otherwise provided for
    • H05K1/0263—High current adaptations, e.g. printed high current conductors or using auxiliary non-printed means; Fine and coarse circuit patterns on one circuit board
    • H05K1/0265—High current adaptations, e.g. printed high current conductors or using auxiliary non-printed means; Fine and coarse circuit patterns on one circuit board characterized by the lay-out of or details of the printed conductors, e.g. reinforced conductors, redundant conductors, conductors having different cross-sections
    • 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
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0213—Electrical arrangements not otherwise provided for
    • H05K1/0254—High voltage adaptations; Electrical insulation details; Overvoltage or electrostatic discharge protection ; Arrangements for regulating voltages or for using plural voltages
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0286—Programmable, customizable or modifiable circuits
    • H05K1/0293—Individual printed conductors which are adapted for modification, e.g. fusable or breakable conductors, printed switches
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
    • 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
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0286—Programmable, customizable or modifiable circuits
    • H05K1/0292—Programmable, customizable or modifiable circuits having a modifiable lay-out, i.e. adapted for engineering changes or repair
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/189—Printed circuits structurally associated with non-printed electric components characterised by the use of flexible or folded printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/05—Flexible printed circuits [FPCs]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/09218—Conductive traces
    • H05K2201/09263—Meander
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/09372—Pads and lands
    • H05K2201/094—Array of pads or lands differing from one another, e.g. in size, pitch or thickness; Using different connections on the pads
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10037—Printed or non-printed battery
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10181—Fuse
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/17—Post-manufacturing processes
    • H05K2203/173—Adding connections between adjacent pads or conductors, e.g. for modifying or repairing
    • 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 technical field of battery sampling, in particular to a circuit board, a method of using the circuit board, a battery module, and a vehicle.
  • the voltage and temperature of the battery are usually sampled through the FPC.
  • a fuse area is usually set in the sampling line of the FPC (as shown in FIGS. 1 and 2) Shown, where 11 ⁇ is the sampling end of the sampling line, 12 ⁇ is the output end of the sampling line, S ⁇ is the fuse area, 2 ⁇ is the pad, and 6 ⁇ is the insulating film).
  • 11 ⁇ is the sampling end of the sampling line
  • 12 ⁇ is the output end of the sampling line
  • S ⁇ the fuse area
  • 2 ⁇ is the pad
  • 6 ⁇ is the insulating film
  • the purpose of the present application is to provide a circuit board, a method for using the circuit board, a battery module, and a vehicle.
  • the circuit board has a simple structure and can be reused, which improves the utilization rate of the battery module.
  • the present application provides a circuit board, which includes a conductive layer, a first pad, and a second pad.
  • the conductive layer is formed with a sampling line, and the sampling line has: a sampling end; an output end; a first branch connected to the sampling end and the output end and forming a first fuse area; and a second branch, A second fuse area is formed, and one end of the second branch is connected to the sampling end or the portion of the first branch excluding the first fuse area, and the other end is spaced from the sampling end and the first branch.
  • the first pad is disposed at the sampling end, and the second pad is disposed at the other end of the second branch.
  • the second pad is connected to the first pad through the conductive connection.
  • the circuit board further includes: a third pad, which is disposed on the first fuse side of the first branch.
  • the one end of the second branch is connected to the sampling end or the first branch between the sampling end and the first fuse zone.
  • the third pad is disposed between the first fuse region and the output end.
  • the one end of the second branch is connected to the first branch between the output end and the first fuse zone.
  • the third pad is disposed between the first fuse area and the sampling end.
  • the second pad is connected to the third pad through the conductive connection.
  • the second branch is one or more in number.
  • the number of sampling lines is one or more.
  • a protective glue is pasted on the outside of the second pad.
  • the present application also provides a method of using a circuit board, which includes the following steps: after the first fuse region of the first branch is fused, the second pad is connected to the first pad through a conductive connector , So that the second fuse area of the second branch is electrically connected to the sampling end and the output end; or after the first fuse area of the first branch is blown, the second pad is connected to the third solder through the conductive connector Disk so that the second fuse area of the second branch is electrically connected to the sampling end and the output end.
  • the present application also provides a battery module including the circuit board described in the first aspect.
  • the present application also provides a vehicle including the battery module described in the third aspect.
  • the first pad transmits the collected signal to the external controller through the sampling end of the sampling line, the first branch, and the output end.
  • the second branch is also provided in the sampling line, thereby making
  • the circuit board is returned to the factory for repair, it can be quickly repaired by the second branch and the second pad to turn on the electrical connection between the sampling end and the output end, thereby achieving the purpose of reusing the circuit board, thereby making the entire
  • the battery module will not be scrapped, which improves the utilization rate of the battery module.
  • FIG. 1 is a schematic diagram of a circuit board in the prior art.
  • FIG. 2 is an enlarged view of the circled part in FIG. 1.
  • FIG. 3 is a perspective view of the battery module of the present application.
  • FIG. 4 is a schematic diagram of the circuit board of the present application, wherein, for the sake of clarity, only the insulating film on one side in the thickness direction of the circuit board is shown.
  • FIG. 5 is an enlarged view of the circled part in FIG. 4.
  • FIG. 6 is a schematic diagram of repairing the circuit board in FIG. 4.
  • FIG. 7 is an enlarged view of the circled part in FIG. 6.
  • FIG. 8 is a modification of FIG. 7.
  • FIG. 9 is another modification of FIG. 7.
  • connection means two or more; unless otherwise specified or stated, the term “connection” should be understood in a broad sense, for example, “connection” may be a fixed connection or a detachable connection, or integrally Connection, or electrical connection, or signal connection; “connection” can be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.
  • the battery module of the present application includes a plurality of batteries 2, a circuit board 1, a plurality of electrical connection sheets 3 and a conductive sheet 4.
  • the plurality of batteries 1 are arranged side by side and electrically connected together through the plurality of electrical connection pieces 3.
  • the number of conductive sheets 4 can be set according to the number of batteries 2 that need to collect temperature and/or voltage.
  • the circuit board 1 is disposed above the plurality of batteries 2 and is electrically connected to the corresponding electrical connection sheet 3 through the corresponding conductive sheet 4 to collect the temperature and/or voltage of the corresponding battery 2.
  • the circuit board 1 may be a flexible printed circuit (Flexible Printed Circuit, abbreviated as FPC). Specifically, referring to FIGS. 3 to 9, the circuit board 1 includes a conductive layer, a first pad 12, a second pad 13, a third pad 14, a conductive connection 15 and an insulating film 16.
  • FPC Flexible Printed Circuit
  • the conductive layer of the circuit board 1 may be made of a metal material (such as copper foil or aluminum foil), and the conductive layer may be formed with one or more sampling lines 11. Wherein, each sampling line 11 is electrically connected to the corresponding electrical connection sheet 3 through the corresponding conductive sheet 4 to collect the temperature and/or voltage of the corresponding battery 2.
  • the sampling line 11 has: a sampling end 111; an output end 112, connected to an external controller; a first branch 113, connected to the sampling end 111 and the output end 112 and formed with a first fuse Area S11; and the second branch 114, a second fuse area S12 is formed, and one end of the second branch 114 is connected to the sampling end 111 or the first branch 113 to remove the portion of the first fuse area S11, the other end and The sampling end 111 and the first branch 113 are spaced apart.
  • the first pad 12 is disposed at the sampling end 111 of the sampling line 11 and connected to the conductive sheet 4 to collect the temperature and/or voltage of the battery 2.
  • the second pad 13 is disposed at the other end of the second branch 114. The number of the first pad 12 and the second pad 13 are the same as the sampling line 11 in number.
  • the first pad 12 transmits the collected signal to the external controller through the sampling end 111, the first branch 113, and the output end 112 of the sampling line 11.
  • the sampling line 11 is also provided with a Two branches 114, so that the circuit board 1 can use the second branch 114 and the second pad 13 to quickly repair the electrical connection between the sampling end 111 and the output end 112 when returning to the factory for repair, by This achieves the purpose of reusing the circuit board 1, so that the entire battery module will not be scrapped, and the utilization rate of the battery module is improved.
  • the second fuse area S12 on the second branch 114 is used to protect the circuit board 1 and the battery module again.
  • the second branch 114 can be made using the same manufacturing process as the first branch 113 to simplify the manufacturing process and improve the production efficiency of the circuit board 1.
  • the number of second branches 114 is not limited to one, and may be increased to a plurality of depending on the size of the circuit board 1.
  • the circuit board 1 can be quickly repaired through the second branch 114 and the second pad 13 when returning to the factory for repair, as follows:
  • the third pad 14 can be selectively set, as described in detail below.
  • the second pad 13 is connected to the first pad 12 through the conductive connection 15, at this time the sampling end 111 passes through the first pad 12, the conductive connector 15, the second pad 13, and the second branch 114 to communicate with the output end 112 in this order.
  • the conductive connection member 15 directly connects the second pad 13 and the first pad 12, it is not necessary to provide the third pad 14, thereby simplifying the structure and manufacturing process of the circuit board 1.
  • the one end of the second branch 114 is connected to the first branch 113 between the output end 112 and the first fuse region S11 so as to be provided on the second branch
  • the second pad 13 on the other end of the path 114 is close to the first pad 12.
  • the one end of the second branch 114 is directly connected to the sampling end 111 or connected to the first branch between the sampling end 111 and the first fuse area S11 113, the third pad 14 is disposed between the first fuse region S11 and the output end portion 112, so that the third pad 14 is close to the second pad 13, thereby helping to reduce the length of the conductive connector 15.
  • the second pad 13 is connected to the third pad 14 through the conductive connection 15, and the sampling end 111 then passes through the second branch 114 and the second The pad 13, the conductive connector 15, the third pad 14 and the output end 112 are connected.
  • the formation position of the second branch 114 does not need to be set according to the position of the first pad 12, and at the same time, because the conductive connection 15 is not connected to the first pad 12, thereby avoiding The effect of multiple connections (such as soldering) on the first pad 12 (which needs to be connected to the conductive sheet 4 later) is discussed.
  • the one end of the second branch 114 is connected to the first branch 113 between the output end 112 and the first fuse region S11, and the third pad 14 is provided on the first Between the fuse region S11 and the sampling end 111 to bring the third pad 14 close to the second pad 13, thereby helping to reduce the length of the conductive connection 15.
  • the second pad 13 is connected to the third pad 14 through the conductive connector 15, and the sampling end 111 is then sequentially connected through the third pad 14 and the conductive connection
  • the device 15, the second pad 13 and the second branch 114 are connected to the output end 112.
  • the formation position of the second branch 114 does not need to be set according to the position of the first pad 12, and at the same time, because the conductive connection 15 is not connected to the first pad 12, thereby avoiding The effect of multiple connections on the first pad 12 is known.
  • first pad 12, the second pad 13 and the third pad 14 can be integrally formed with the sampling line 11, or made of the same material as the sampling line 11 and connected (such as welding, electrical bonding) , Crimping, etc.) in the sampling line 11, or it may be made of a metal material or alloy material different from the sampling line 11 and connected to the sampling line 11.
  • shapes of the first pad 12, the second pad 13, and the third pad 14 may be circular, elliptical, square, or the like.
  • the conductive connector 15 is made of a metal material, which may be a wire, aluminum wire, copper wire, nickel wire, solder, etc., and the conductive connector 15 is connected to the first pad 12, the second pad 13, or the third pad
  • the connection between 14 can be welding, conductive bonding, crimping, etc.
  • an insulating film 16 is coated on the outside of the conductive layer. Among them, the first pad 12, the second pad 13 and the third pad 14 are all exposed outside the insulating film 16 to facilitate connection with other electrical connection parts.
  • a protective glue may be pasted on the surface, and when it needs to be connected with other electrical connection parts, the protective glue is directly removed.
  • a protective glue may also be applied to the connection part.
  • the protective glue may be high temperature adhesive tape or protective coating glue.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Combinations Of Printed Boards (AREA)

Abstract

一种电路板、电路板使用方法、电池模组及车辆，电路板（1）包括导电层、第一焊盘（12）、第二焊盘（13）。导电层形成有采样线路（11），所述采样线路（11）具有：采样端部（111）；输出端部（112）；第一支路（113），形成有第一熔断区（S11）；以及第二支路（114），形成有第二熔断区（S12）。第一焊盘（12）设置于采样端部（111），第二焊盘（13）设置于第二支路（114）。在采样过程中，第一焊盘（12）将采集到的信号通过采样线路（11）的采样端部（111）、第一支路（113）以及输出端部（112）传递给外部控制器，当第一支路（113）的第一熔断区（S11）发生熔断后，由于采样线路（11）中还设置有第二支路（114），从而使得电路板（1）在返厂维修时能够利用第二支路（114）以及第二焊盘（13）进行快速修复以导通采样端部（111）与输出端部（112）之间的电连接，由此达到重复利用电路板（1）的目的，进而使得整个电池模组不会报废，提高了电池模组的利用率。

Description

电路板、电路板使用方法、电池模组及车辆 技术领域
本申请涉及电池采样技术领域，尤其涉及一种电路板、电路板使用方法、电池模组及车辆。
背景技术
在电池模组中，通常通过FPC对电池进行电压和温度采样，为了在采样过程中保证低压电连接的安全可靠性，通常在FPC的采样线路中设置一个熔断区(如图1和图2所示，其中11`为采样线路的采样端部、12`为采样线路的输出端部、S`为熔断区、2`为焊盘、6`为绝缘膜)。但是，一旦采样线路中的熔断区熔断将造成采样失效，并导致整个FPC甚至整个电池模组的报废。
发明内容
鉴于背景技术中存在的问题，本申请的目的在于提供一种电路板、电路板使用方法、电池模组及车辆，电路板的结构简单且能够重复利用，提高了电池模组的利用率。
为了实现上述目的，在第一方面，本申请提供了一种电路板，其包括导电层、第一焊盘以及第二焊盘。导电层形成有采样线路，且所述采样线路具有：采样端部；输出端部；第一支路，连接于采样端部和输出端部并形成有第一熔断区；以及第二支路，形成有第二熔断区，且第二支路的一端连接于采样端部或第一支路除去第一熔断区的部分、另一端与采样端部和第一支路间隔设置。第一焊盘设置于采样端部，第二焊盘设置于第二支路的所述另一端。
在第一支路的第一熔断区熔断后，第二焊盘通过导电连接件连接于第一焊盘。
电路板还包括：第三焊盘，设置于第一支路的第一熔断区一侧。
第二支路的所述一端连接于采样端部或在采样端部与第一熔断区之间连接于第一支路。第三焊盘设置于第一熔断区与输出端部之间。
第二支路的所述一端在输出端部与第一熔断区之间连接于第一支路。第三焊盘设置于第一熔断区与采样端部之间。
在第一支路的第一熔断区熔断后，第二焊盘通过导电连接件连接于第三焊盘。
第二支路在数量上为一个或多个。
采样线路在数量上为一条或多条。
第二焊盘的外部粘贴有保护胶。
在第二方面，本申请还提供了一种电路板的使用方法，其包括以下步骤：在第一支路的第一熔断区熔断后，第二焊盘通过导电连接件连接于第一焊盘，以使第二支路的第二熔断区与采样端部和输出端部电连接；或在第一支路的第一熔断区熔断后，第二焊盘通过导电连接件连接于第三焊盘，以使第二支路的第二熔断区与采样端部和输出端部电连接。
在第三方面，本申请还提供了一种电池模组，其包括第一方面所述的电路板。
在第四方面，本申请还提供了一种车辆，其包括第三方面所述的电池模组。
本申请的有益效果如下：
在电路板的采样过程中，第一焊盘将采集到的信号通过采样线路的采样端部、第一支路以及输出端部传递给外部控制器。当第一支路的第一熔断区发生熔断(此时采样线路的采样端部与输出端部之间的电连接被断开)后，由于采样线路中还设置有第二支路，从而使得电路板在返厂维修时能够利用第二支路以及第二焊盘进行快速修复以导通采样端部与输出端部之间的电连接，由此达到重复利用电路板的目的，进而使得整个电池模组不会报废，提高了电池模组的利用率。
附图说明
图1是现有技术中的电路板的示意图。
图2是图1中的圆圈部分的放大图。
图3是本申请的电池模组的立体图。
图4是本申请的电路板的示意图，其中为了清楚起见，只示出了处于电路板厚度方向一侧的绝缘膜。
图5是图4中的圆圈部分的放大图。
图6是图4中的电路板的修复示意图。
图7是图6中的圆圈部分的放大图。
图8是图7的一变形例。
图9是图7的另一变形例。
其中，附图标记说明如下：
1电路板          12第一焊盘
11采样线路       13第二焊盘
111采样端部      14第三焊盘
112输出端部      15导电连接件
113第一支路      16绝缘膜
114第二支路      2电池
S11第一熔断区    3电连接片
S12第二熔断区    4导电片
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
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”、“第三”仅用于描述的目的，而不能理解为指示或暗示相对重要性；术语“多个”是指两个或两个以上；除非另有规定或说明，术语“连接”、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，或信号连接；“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申请中的具体含义。
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”、 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”。下面通过具体的实施例并结合附图对本申请做进一步的详细描述。
参照图3，本申请的电池模组包括多个电池2、电路板1、多个电连接片3以及导电片4。
所述多个电池1并排布置并通过所述多个电连接片3电连接在一起。导电片4的数量可根据需要采集温度和/或电压的电池2的数量来进行设置。电路板1设置于所述多个电池2上方，并通过对应的导电片4电连接于对应的电连接片3，以采集对应电池2的温度和/或电压。
电路板1可为柔性印制电路板(Flexible Printed Circuit，缩写为FPC)。具体地，参照图3至图9，电路板1包括导电层、第一焊盘12、第二焊盘13、第三焊盘14、导电连接件15以及绝缘膜16。
电路板1的导电层可由金属材料(如铜箔或铝箔)制成，且导电层可形成有一条或多条采样线路11。其中，每条采样线路11通过对应的导电片4电连接于对应的电连接片3，以采集对应电池2的温度和/或电压。
参照图4至图9，采样线路11具有：采样端部111；输出端部112，连接外部控制器；第一支路113，连接于采样端部111和输出端部112并形成有第一熔断区S11；以及第二支路114，形成有第二熔断区S12，且第二支路114的一端连接于采样端部111或第一支路113除去第一熔断区S11的部分、另一端与采样端部111和第一支路113间隔设置。
第一焊盘12设置于采样线路11的采样端部111并连接于导电片4，以采集电池2的温度和/或电压。第二焊盘13设置于第二支路114的所述另一端。其中，第一焊盘12、第二焊盘13在数量上均与采样线路11一致。
在电路板1的采样过程中，第一焊盘12将采集到的信号通过采样线路11的采样端部111、第一支路113以及输出端部112传递给外部控制器。当第一支路113的第一熔断区S11发生熔断(此时采样线路11的采样端部111与输出端部112之间的电连接被断开)后，由于采样线路11中还设置有第二支路114，从而使得电路板1在返厂维修时能够利用第二支路114以及第 二焊盘13进行快速修复以导通采样端部111与输出端部112之间的电连接，由此达到重复利用电路板1的目的，进而使得整个电池模组不会报废，提高了电池模组的利用率。并且，第二支路114上的第二熔断区S12用于再次保护电路板1和电池模组。
第二支路114可采用与第一支路113相同的制作工艺制成，以简化制造工艺、提高电路板1的生产效率。并且，第二支路114在数量上不仅限于一个，根据电路板1的尺寸，也可增设为多个。
在第一支路113的第一熔断区S11发生熔断后，电路板1在返厂维修时通过第二支路114以及第二焊盘13进行快速修复的方式有如下几种，其中基于不同的修复方式，第三焊盘14可以进行选择性设置，具体说明如下。
在第一实施例中，参照图8，在第一支路113的第一熔断区S11发生熔断后，第二焊盘13通过导电连接件15连接于第一焊盘12，此时采样端部111依次通过第一焊盘12、导电连接件15、第二焊盘13以及第二支路114与输出端部112导通。这里，由于导电连接件15直接连接第二焊盘13与第一焊盘12，从而无需设置第三焊盘14，由此简化了电路板1的结构及制作工艺。
为了减小导电连接件15的长度，优选地，第二支路114的所述一端在输出端部112与第一熔断区S11之间连接于第一支路113，以使设置于第二支路114的所述另一端上的第二焊盘13靠近第一焊盘12。
在第二实施例中，参照图6和图7，第二支路114的所述一端直接连接于采样端部111或在采样端部111与第一熔断区S11之间连接于第一支路113，第三焊盘14设置于第一熔断区S11与输出端部112之间，以使第三焊盘14靠近第二焊盘13，由此有助于减小导电连接件15的长度。
在第一支路113的第一熔断区S11发生熔断后，第二焊盘13通过导电连接件15连接于第三焊盘14，此时采样端部111依次通过第二支路114、第二焊盘13、导电连接件15、第三焊盘14与输出端部112导通。这里，基于第三焊盘14的设置，使得第二支路114的形成位置无需依附第一焊盘12的位置进行设置，同时由于导电连接件15未与第一焊盘12连接，由此避免了多次连接(如焊接)对第一焊盘12(后续还需与导电片4连接)的影响。
在第三实施例中，参照图9，第二支路114的所述一端在输出端部112 与第一熔断区S11之间连接于第一支路113，第三焊盘14设置于第一熔断区S11与采样端部111之间，以使第三焊盘14靠近第二焊盘13，由此有助于减小导电连接件15的长度。
在第一支路113的第一熔断区S11发生熔断后，第二焊盘13通过导电连接件15连接于第三焊盘14，此时采样端部111依次通过第三焊盘14、导电连接件15、第二焊盘13以及第二支路114与输出端部112导通。这里，基于第三焊盘14的设置，使得第二支路114的形成位置无需依附第一焊盘12的位置进行设置，同时由于导电连接件15未与第一焊盘12连接，由此避免了多次连接对第一焊盘12的影响。
需要说明的是，第一焊盘12、第二焊盘13以及第三焊盘14可与采样线路11一体成型，或者采用与采样线路11相同的材料制成并连接(如焊接、电粘接、压接等)于采样线路11中，亦或者采用与采样线路11不同的金属材料或合金材料制成并连接于采样线路11中。并且，第一焊盘12、第二焊盘13以及第三焊盘14的形状可以是圆形、椭圆形、方形等。
导电连接件15采用金属材料制成，其具体可为导线、铝丝、铜丝、镍丝、焊锡等，且导电连接件15与第一焊盘12、第二焊盘13或第三焊盘14之间的连接方式可为焊接、导电粘接、压接等。
为了对导电层进行保护，导电层的外部包覆有绝缘膜16。其中，第一焊盘12、第二焊盘13以及第三焊盘14均裸露在绝缘膜16外，以便于与其它电连接部件进行连接。
为了对第一焊盘12、第二焊盘13以及第三焊盘14进行保护，可在其表面粘贴保护胶，当其需要与其它电连接部件连接时，直接去除所述保护胶。此外，为了保证导电连接件15与第一焊盘12、第二焊盘13或第三焊盘14连接后的可靠性，也可在连接部位涂覆保护胶。其中，所述保护胶可为高温胶带或防护涂层胶。

Claims (12)

  1. 一种电路板(1)，包括：
    导电层，形成有采样线路(11)，且所述采样线路(11)具有：采样端部(111)；输出端部(112)；第一支路(113)，连接于采样端部(111)和输出端部(112)并形成有第一熔断区(S11)；以及第二支路(114)，形成有第二熔断区(S12)，且第二支路(114)的一端连接于采样端部(111)或第一支路(113)除去第一熔断区(S11)的部分、另一端与采样端部(111)和第一支路(113)间隔设置；
    第一焊盘(12)，设置于采样端部(111)；以及
    第二焊盘(13)，设置于第二支路(114)的所述另一端。
  2. 根据权利要求1所述的电路板(1)，其特征在于，在第一支路(113)的第一熔断区(S11)熔断后，第二焊盘(13)通过导电连接件(15)连接于第一焊盘(12)。
  3. 根据权利要求1所述的电路板(1)，其特征在于，电路板(1)还包括：第三焊盘(14)，设置于第一支路(113)的第一熔断区(S11)一侧。
  4. 根据权利要求3所述的电路板(1)，其特征在于，
    第二支路(114)的所述一端连接于采样端部(111)或在采样端部(111)与第一熔断区(S11)之间连接于第一支路(113)；
    第三焊盘(14)设置于第一熔断区(S11)与输出端部(112)之间。
  5. 根据权利要求3所述的电路板(1)，其特征在于，
    第二支路(114)的所述一端在输出端部(112)与第一熔断区(S11)之间连接于第一支路(113)；
    第三焊盘(14)设置于第一熔断区(S11)与采样端部(111)之间。
  6. 根据权利要求4或5所述的电路板(1)，其特征在于，在第一支路 (113)的第一熔断区(S11)熔断后，第二焊盘(13)通过导电连接件(15)连接于第三焊盘(14)。
  7. 根据权利要求1所述的电路板(1)，其特征在于，第二支路(114)在数量上为一个或多个。
  8. 根据权利要求1所述的电路板(1)，其特征在于，采样线路(11)在数量上为一条或多条。
  9. 根据权利要求1所述的电路板(1)，其特征在于，第二焊盘(13)的外部粘贴有保护胶。
  10. 一种电路板使用方法，其特征在于，根据权利要求3-6中任一项所述的电路板，电路板使用方法包括步骤：
    在第一支路(113)的第一熔断区(S11)熔断后，第二焊盘(13)通过导电连接件(15)连接于第一焊盘(12)，以使第二支路(114)的第二熔断区(S12)与采样端部(111)和输出端部(112)电连接；或
    在第一支路(113)的第一熔断区(S11)熔断后，第二焊盘(13)通过导电连接件(15)连接于第三焊盘(14)，以使第二支路(114)的第二熔断区(S12)与采样端部(111)和输出端部(112)电连接。
  11. 一种电池模组，其特征在于，包括根据权利要求1-9中任一项所述的电路板(1)。
  12. 一种车辆，其特征在于，包括权利要求11所述的电池模组。
PCT/CN2019/123696 2018-12-23 2019-12-06 电路板、电路板使用方法、电池模组及车辆 Ceased WO2020134981A1 (zh)

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Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102718016B1 (ko) * 2020-05-07 2024-10-15 컨템포러리 엠퍼렉스 테크놀로지 (홍콩) 리미티드 전지 모듈, 전지 팩, 전지 모듈을 전원으로 사용하는 기기 및 전지 모듈의 제조 방법
KR102745197B1 (ko) 2020-07-28 2024-12-23 주식회사 엘지에너지솔루션 Fpcb 및 그의 제조 방법
CN214706024U (zh) * 2021-03-30 2021-11-12 比亚迪股份有限公司 采样结构、电池包和电动车
CN115189104B (zh) 2021-04-06 2024-11-08 莫仕连接器(成都)有限公司 电池连接模组
CN113346183B (zh) * 2021-05-12 2023-05-05 中创新航技术研究院(江苏)有限公司 电池组、电池模组及电池包
EP4402994A4 (en) * 2021-09-14 2025-12-24 Inventus Power Inc Compliant Habittronic Battery
CN116632461A (zh) 2022-02-11 2023-08-22 莫仕连接器(成都)有限公司 电池连接模组
US12506215B2 (en) 2022-03-23 2025-12-23 Ford Global Technologies, Llc Enclosure cover attachment configurations for traction battery packs with cell-to-pack battery systems
US12525637B2 (en) 2022-03-23 2026-01-13 Ford Global Technologies, Llc Traction battery pack assembling method
US12275298B2 (en) 2022-03-23 2025-04-15 Ford Global Technologies, Llc Traction battery packs with cell-to-pack battery systems housed within irregularly shaped enclosures
US12567642B2 (en) 2022-03-23 2026-03-03 Ford Global Technologies, Llc Shim systems for traction battery packs
US12230826B2 (en) 2022-03-23 2025-02-18 Ford Global Technologies, Llc Methods for assembling traction battery packs
US12424695B2 (en) 2022-03-23 2025-09-23 Ford Global Technologies, Llc Retention assemblies for traction battery packs with cell-to-pack battery systems
US12479327B2 (en) 2022-03-23 2025-11-25 Ford Global Technologies, Llc Traction battery pack cell stack removal method and battery pack assembly
US12603373B2 (en) 2022-03-23 2026-04-14 Ford Global Technologies, Llc Traction battery pack assembling method
US12374750B2 (en) 2022-03-23 2025-07-29 Ford Global Technologies, Llc Traction battery pack assembling method
USD998576S1 (en) * 2022-09-12 2023-09-12 Jiarui Zhu Flexible printed circuit board
CN115911720A (zh) * 2022-11-18 2023-04-04 广州小鹏汽车科技有限公司 电池包及车辆
CN119009384A (zh) * 2024-08-12 2024-11-22 深圳海辰储能科技有限公司 采样组件、储能装置及储能系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203968491U (zh) * 2013-12-31 2014-11-26 深圳市比亚迪电子部品件有限公司 一种柔性印刷线路板
CN204011598U (zh) * 2014-06-30 2014-12-10 比亚迪股份有限公司 信号采集模块和具有其的电池系统
CN204243156U (zh) * 2014-06-30 2015-04-01 深圳市比亚迪锂电池有限公司 信号采集模块和具有其的电池系统
CN207502073U (zh) * 2017-09-29 2018-06-15 江苏由甲申田新能源科技有限公司 温度传感器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1905490A1 (de) 1969-02-05 1970-08-20 Kienzle Apparate Gmbh Mehrfach-Schmelzsicherung
JPS56114572U (zh) 1980-02-01 1981-09-03
CN112888159B (zh) 2017-01-09 2022-10-25 莫仕连接器(成都)有限公司 电池连接模块
CN208754586U (zh) 2018-05-08 2019-04-16 东莞市硅翔绝缘材料有限公司 用于动力电池的轻量化信号采集fpc

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203968491U (zh) * 2013-12-31 2014-11-26 深圳市比亚迪电子部品件有限公司 一种柔性印刷线路板
CN204011598U (zh) * 2014-06-30 2014-12-10 比亚迪股份有限公司 信号采集模块和具有其的电池系统
CN204243156U (zh) * 2014-06-30 2015-04-01 深圳市比亚迪锂电池有限公司 信号采集模块和具有其的电池系统
CN207502073U (zh) * 2017-09-29 2018-06-15 江苏由甲申田新能源科技有限公司 温度传感器

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