WO2020255877A1 - Carte de circuit imprimé souple avec borne, module de câblage et module de stockage d'énergie - Google Patents

Carte de circuit imprimé souple avec borne, module de câblage et module de stockage d'énergie Download PDF

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Publication number
WO2020255877A1
WO2020255877A1 PCT/JP2020/023213 JP2020023213W WO2020255877A1 WO 2020255877 A1 WO2020255877 A1 WO 2020255877A1 JP 2020023213 W JP2020023213 W JP 2020023213W WO 2020255877 A1 WO2020255877 A1 WO 2020255877A1
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WIPO (PCT)
Prior art keywords
flexible printed
circuit board
printed circuit
terminals
terminal
Prior art date
Application number
PCT/JP2020/023213
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English (en)
Japanese (ja)
Inventor
秀幸 久保木
平光　宏臣
雪清 董
正人 筒木
悠人 佐藤
良之 薄井
Original Assignee
株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
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
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Application filed by 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社 filed Critical 株式会社オートネットワーク技術研究所
Publication of WO2020255877A1 publication Critical patent/WO2020255877A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/61—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connecting to flexible printed circuits, flat or ribbon cables or like structures
    • 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

Definitions

  • This specification discloses technologies related to flexible printed circuit boards with terminals, wiring modules, and power storage modules.
  • Patent Document 1 a battery module described in Japanese Patent No. 5621765 (Patent Document 1) is known.
  • the positive electrode terminal and the negative electrode terminal of adjacent battery cells are connected by a bus bar.
  • the tongue piece-shaped wiring member provided on the bus bar is connected to the contact pad formed on the flexible printed circuit board by reflow soldering.
  • the terminals soldered to the conductive path of the flexible printed circuit board are preferably formed of aluminum or an aluminum alloy having a relatively small specific gravity.
  • terminals made of metal containing aluminum do not always have good solderability, so there is a concern that the soldered portion may have poor connection.
  • the flexible printed board with terminals described in the present specification is a flexible printed board with terminals including a flexible printed board having a conductive path and terminals soldered to the conductive path, and the flexible printed board is a flexible printed board with terminals.
  • the terminal has a land that is electrically connected to the conductive path and the terminal can be connected by soldering.
  • the terminal has a plate-shaped terminal body made of metal containing aluminum and a plate surface of the terminal body. It is provided with a plated portion made of a metal containing nickel, and the land and the plated portion are soldered to each other.
  • FIG. 1 is a schematic view showing a vehicle equipped with the power storage module according to the first embodiment.
  • FIG. 2 is a plan view showing the power storage module of the first embodiment.
  • FIG. 3 is a perspective view showing a flexible printed circuit board with terminals.
  • FIG. 4 is a cross-sectional view taken along the line AA of FIG.
  • FIG. 5 is a cross-sectional view taken along the line BB of FIG.
  • FIG. 6 is an exploded perspective view showing a flexible printed circuit board with terminals.
  • FIG. 7 is a perspective view showing a flexible printed circuit board with terminals according to the second embodiment.
  • FIG. 10 is an exploded perspective view showing a flexible printed circuit board with terminals.
  • FIG. 11 is a perspective view showing a flexible printed circuit board with terminals according to the third embodiment.
  • FIG. 12 is a cross-sectional view taken along the line EE of FIG.
  • FIG. 13 is an exploded perspective view showing a flexible printed circuit board with terminals.
  • FIG. 14 is a perspective view showing a flexible printed circuit board with terminals according to the fourth embodiment.
  • FIG. 15 is an exploded perspective view showing a flexible printed circuit board with terminals.
  • FIG. 16 is a cross-sectional view showing a flexible printed circuit board with terminals according to the fifth embodiment.
  • the flexible printed board with terminals of the present disclosure is a flexible printed board with terminals including a flexible printed board having a conductive path and terminals soldered to the conductive path, and the flexible printed board is a flexible printed board with terminals. It has a land that is electrically connected to the conductive path and the terminals can be connected by soldering, and the terminals are formed on a plate-shaped terminal body made of metal containing aluminum and a plate surface of the terminal body. It is provided with a plated portion made of a metal containing nickel, which is in close contact with the land, and the land and the plated portion are soldered to each other.
  • solderability can be improved and the solder connection failure can be suppressed by adhering to the plate surface of the terminal body and soldering to the plated portion made of a metal containing nickel. ..
  • the terminal body includes an exposed portion where the metal containing aluminum is exposed on a surface different from the plate surface.
  • the metal plate material is punched out with a press machine to form a plurality of terminals, for example, plating is formed on individual terminals.
  • the manufacturing cost can be reduced as compared with the case of In this case, a metal containing aluminum is exposed on the terminal body, and an exposed portion having poor solderability is formed.
  • Solderability can be improved by soldering a plated portion made of a metal containing nickel. Therefore, it is possible to suppress solder connection defects while reducing the manufacturing cost.
  • a through hole through which the terminal is inserted is formed in the vicinity of the land on the flexible printed circuit board. In this way, it is possible to improve the workability of assembling the flexible printed circuit board with terminals.
  • a connecting member for connecting the adjacent electrode portions of a plurality of power storage elements having positive electrode and negative electrode portions is provided, and the terminal is integrally formed with the connecting member.
  • the manufacturing process can be simplified as compared with the configuration in which the terminals are formed separately from the connecting member.
  • a reinforcing plate to be laminated on the surface of the flexible printed circuit board on the connecting member side is provided.
  • the reinforcing plate for increasing the rigidity of the flexible printed circuit board is overlapped on the connecting member side, so that the reinforcing plate does not easily interfere with the soldering work, so that the soldering workability can be improved. become.
  • the flexible printed circuit board extends in a strip shape, and the plate surface of the terminal body is arranged along the extending direction of the flexible printed circuit board. In this way, the size of the flexible printed circuit board in the width direction can be reduced, so that the flexible printed circuit board with terminals can be miniaturized.
  • the present disclosure is a wiring module for a vehicle used by being mounted on a vehicle, and includes the flexible printed circuit board with terminals according to any one of claims 1 to 6.
  • the power storage module includes the flexible printed circuit board with terminals, a plurality of power storage elements having positive and negative electrode portions, and a connecting member for connecting the plurality of power storage elements adjacent to each other. ..
  • connection member is arranged on the electrode portion of the power storage element, a through hole is formed in the vicinity of the land on the flexible printed circuit board, and the terminal is the power storage element for the flexible printed circuit board. It is inserted into the through hole from the side. In this way, for example, it is not always necessary to secure a space for the terminal on the upper side of the flexible printed circuit board as compared with the case where the terminal is inserted into the through hole from the side opposite to the power storage element side of the flexible printed circuit board. Therefore, it is possible to reduce the height of the power storage module.
  • the first embodiment to which the present disclosure is applied to the storage pack 2 mounted on the vehicle 1 will be described with reference to FIGS. 1 to 6.
  • the power storage pack 2 is mounted on a vehicle 1 such as an electric vehicle or a hybrid vehicle and is used as a drive source for the vehicle 1.
  • vehicle 1 such as an electric vehicle or a hybrid vehicle
  • the reference numerals of other members may be omitted.
  • a power storage pack 2 is arranged near the center of the vehicle 1.
  • a PCU 3 Power Control Unit
  • the power storage pack 2 and the PCU 3 are connected by a wire harness 4.
  • the power storage pack 2 and the wire harness 4 are connected by a connector (not shown).
  • the power storage pack 2 has a power storage module 10 including a plurality of power storage elements 11.
  • Each power storage element 11 has a flat rectangular parallelepiped shape, contains a power storage element (not shown), and includes electrode portions 12A and 12B (shown as 12A for the positive electrode and 12B for the negative electrode) protruding from the upper surface. ..
  • electrode portions 12A and 12B shown as 12A for the positive electrode and 12B for the negative electrode protruding from the upper surface. ..
  • FIG. 2 the region on the upper surface of each storage element 11 on the one electrode portion 12A (12B) side is shown, and the region on the upper surface of each storage element 11 on the other electrode portion 12B (12A) side is omitted. There is.
  • the orientations of the adjacent power storage elements 11 are arranged so that the polarities of the adjacent electrode portions 12A and 12B are opposite to each other.
  • the upper surfaces of the electrode portions 12A and 12B have a flat rectangular shape on which the connecting member 14 can be placed.
  • the electrode portion 12A (12B) located at the end of the series connection is connected to an external device such as an inverter via an electric wire (not shown).
  • the connecting member 14 is made of a metal plate material such as aluminum or an aluminum alloy, and includes a connecting member main body 14A and a terminal portion 15 (an example of a “terminal”).
  • the connecting member main body 14A has a rectangular shape that covers a pair of adjacent electrode portions 12A and 12B.
  • the connecting member main body 14A is fixed to the electrode portions 12A and 12B by, for example, laser welding.
  • the connecting member main body 14A is provided with a positioning hole 14B into which a convex portion (not shown) of the electrode portions 12A and 12B is fitted, but the positioning hole 14B (and the convex portion of the connecting member) may not be provided. Good.
  • a plurality of power storage elements 11 may be connected in series or in parallel by a plurality of connecting members 14.
  • the terminal portion 15 is for detecting the voltage of the connecting member 14 (and the electrode portions 12A and 12B), and is connected from the left peripheral portion of the connecting member main body 14A as shown in FIGS. 4 and 6. It is inserted into the through hole 25 of the flexible printed circuit board (hereinafter referred to as "FPC21") by bending upward from the tip of the extension portion 15B extending outward on the member main body 14A.
  • the insertion portion 15A to be inserted is provided.
  • plated portions 17 made of nickel-containing metal are formed on both the front and back plate surfaces of the connecting member 14 and the terminal portion 15. As shown in FIG. 4, the plating portion 17 of the terminal portion 15 and the land 24 of the FPC 21 are soldered to electrically connect the connecting member 14 and the conductive path 23 of the FPC 21. On the other hand, as shown in FIG. 5, the plated portion 17 is not formed on the side surfaces of the connecting member 14 and the terminal portion 15 (an example of "a surface different from the plate surface", a cut surface cut by a press machine).
  • the exposed portion 16A is an exposed metal made of aluminum or an aluminum alloy.
  • the plated portion 17 for example, nickel sulfate, nickel chloride, or boric acid as main components can be used, and a brightener may be added. Further, the plated portion 17 can be formed on a metal plate material made of aluminum or an aluminum alloy by, for example, electroless nickel plating, electronickel plating or the like.
  • electroless nickel plating when hypophosphate, which is a reducing agent, is oxidized to phosphite, electrons are emitted and nickel ions in the solution are reduced to form nickel plating.
  • electronickel plating metal ions are reduced by electrons supplied from an external power source, and nickel ions in the solution obtain electrons to deposit nickel on a cathode (iron plate).
  • the connecting member 14 is formed by punching and bending a metal plate material in which a plated portion 17 containing nickel is formed on the entire outer surface by a press machine.
  • the wiring module 20 includes an FPC 21 and an insulating protector 28 that holds the FPC 21.
  • FPC21 As shown in FIGS. 3 and 6 (FIGS. 3 and 6 show a part of the flexible printed circuit board 30 with terminals, the others are omitted), the FPC 21 includes a plurality of insulating resin films 22 and a copper foil or the like. It is provided with (8 in this embodiment) conductive paths 23.
  • the insulating resin film 22 is made of a synthetic resin such as polyimide having flexibility and insulating properties.
  • the plurality of conductive paths 23 are arranged side by side at intervals in the front-rear direction, extend to a position corresponding to the connecting member 14 on one end side in the front-rear direction, and form a pair of lands 24 to which the terminal portion 15 can be soldered. It is connected.
  • the pair of lands 24 are made of a metal such as copper foil, and both have a rectangular shape that is long in the front-rear direction.
  • a through hole 25 penetrating the FPC 21 is formed between the pair of lands 24.
  • the through hole 25 has a rectangular shape that is long in the front-rear direction.
  • a reinforcing plate 26 is bonded and fixed to the back surface of the FPC 21 with an adhesive or the like.
  • the reinforcing plate 26 is made of metal or synthetic resin and regulates the bending of the FPC 21.
  • the end of each conductive path 23 opposite to the land 24 side is electrically connected to an external electronic control unit (Electronic Control Unit), although not shown.
  • the electronic control unit is equipped with a microcomputer, a semiconductor element, etc., and is well-known and has a function of detecting the voltage, current, temperature, etc. of the power storage element 11 and controlling the charge / discharge of each power storage element 11. It is a configuration.
  • the insulating protector 28 is made of an insulating synthetic resin, and as shown in FIG. 2, a plate that partitions a portion between the arrangement portion 28A where the FPC 21 is arranged and the adjacent power storage element 11 where the connecting member 14 is not arranged. It is provided with a partition wall 29 having a shape.
  • the arrangement portion 28A extends in a flat plate shape in the left-right direction, and the FPC 21 is adhered to the upper surface thereof.
  • the connecting member 14 is placed on the adjacent electrode portions 12A and 12B of the plurality of power storage elements 11. Further, the FPC 21 having the reinforcing plate 26 fixed to the back surface of the insulating protector 28 is adhered to the arrangement portion 28A with an adhesive or the like and fixed to the upper surface of the arrangement portion 28A to form the wiring module 20. Then, the wiring module 20 is placed at a predetermined position on the plurality of power storage elements 11 (see FIG. 2). As a result, the plurality of terminal portions 15 of the plurality of connecting members 14 are inserted into the plurality of through holes 25 of the FPC 21.
  • the connecting member 14 is fixed to the electrode portions 12A and 12B of the plurality of power storage elements 11 by laser welding, and from the upper side of the FPC 21 to the land 24 of the FPC 21 and the terminal portion 15 of the connecting member 14 by a robot soldering device.
  • the solder S in the molten state is attached.
  • the terminal portion 15 has a small cross-sectional area (narrow width) and heat does not easily escape to the connecting member main body 14A side, heat drawing during soldering can be suppressed. As a result, as shown in FIG.
  • the solder S adheres to the plated portion 17 of the terminal portion 15 to form a fillet of the solder S.
  • the exposed portion 16A on which the metal including aluminum on the plate surface intersecting with the plating portion 17 is exposed has poor solder wettability, so that the solder S adheres too much. do not do.
  • the flexible printed circuit board 30 with terminals is formed in which the terminal portions 15 of the plurality of connecting members 14 are soldered to the lands 24 of the FPC 21.
  • a power storage module 10 is formed in which the conductive path 23 of the FPC 21, the connecting member 14, and the electrode portions 12A and 12B are electrically connected.
  • the flexible printed substrate 30 with terminals includes an FPC 21 (flexible printed substrate) having a conductive path 23 and a terminal portion 15 (terminals) soldered to the conductive path 23, and the FPC 21 electrically connects to the conductive path 23. It has a land 24 that is connected and the terminal portion 15 can be connected by soldering, and the terminal portion 15 is in close contact with the plate-shaped terminal body 16 made of metal containing aluminum and the plate surface of the terminal body 16. A plated portion 17 made of a metal containing nickel is provided, and the land 24 and the plated portion 17 are soldered to each other.
  • solderability can be improved by adhering to the plate surface of the terminal body 16 and soldering to the plated portion 17 made of a metal containing nickel, and the poor connection of the solder S can be suppressed. can do.
  • the terminal body 16 includes an exposed portion 16A in which a metal containing aluminum is exposed on a surface different from the plate surface of the terminal body 16.
  • the metal plate material is punched out with a press machine to form a plurality of terminal portions 15, for example, individual terminals. It is preferable because the manufacturing cost can be reduced as compared with the case where plating is formed on the terminals.
  • a metal containing aluminum is exposed on the terminal body 16, and an exposed portion 16A having poor solderability is formed.
  • such an exposed portion 16A is generated. Even if there is, the solderability can be improved by soldering the plated portion 17 made of a metal containing nickel. Therefore, it is possible to suppress poor connection of the solder S while reducing the manufacturing cost.
  • a through hole 25 through which the terminal portion 15 (terminal) is inserted is formed in the vicinity of the land 24 in the FPC 21 (a position close to a position where the land 24 and the plating portion 17 can be soldered).
  • a connecting member 14 for connecting adjacent electrode portions 12A and 12B of a plurality of power storage elements 11 having electrode portions 12A and 12B of the positive electrode and the negative electrode is provided, and the terminal portion 15 (terminal) is integrated with the connecting member 14. It is formed.
  • the terminal portion 15 is integrally formed with the connecting member 14, the manufacturing process is simplified as compared with the configuration in which the terminal portion 15 (terminal) is formed separately from the connecting member 14. be able to.
  • a reinforcing plate 26 is provided which is overlapped with the surface of the FPC 21 on the connecting member 14 side.
  • the reinforcing plate 26 for increasing the rigidity of the FPC 21 is overlapped on the connecting member 14 side, so that the reinforcing plate 26 does not easily interfere with the soldering work, so that the soldering workability can be improved. It will be possible.
  • the FPC 21 extends in a strip shape, and the plate surface of the terminal body 16 is arranged along the front-rear direction (the direction in which the FPC 21 extends). By doing so, the dimensions of the FPC 21 in the left-right direction (width direction) can be reduced, so that the flexible printed circuit board 30 with terminals can be miniaturized.
  • the connecting member 14 is arranged on the electrode portions 12A and 12B of the power storage element 11, a through hole 25 is formed in the vicinity of the land 24 in the FPC 21, and the terminal portion 15 has a through hole 25 from the power storage element 11 side with respect to the FPC 21. It is inserted in. In this way, for example, it is necessary to secure a space for the terminal portion 15 on the upper side of the FPC 21 as compared with the case where the terminal portion 15 is inserted into the through hole 25 from the side opposite to the power storage element 11 side with respect to the FPC 21. Therefore, it is possible to reduce the height of the power storage module 10.
  • the wiring module 20 is a wiring module 20 for a vehicle mounted on and used in a vehicle 1, and includes a flexible printed circuit board 30 with terminals.
  • the connecting member 41 is made of a metal such as aluminum or an aluminum alloy, and includes a connecting member main body 14A and a terminal portion 43 as shown in FIG.
  • the terminal portion 43 is for detecting the voltage of the connecting member 41 (and the electrode portions 12A and 12B), and is L-shaped so as to be flush with the plate surface from the corner side to the FPC56 side of the connecting member main body 14A.
  • the extension portion 44B extending in a shape and the insertion portion 44A standing upward at the tip end portion of the extension portion 44B and being inserted into the through hole 59 of the FPC 56 are provided.
  • the plurality of conductive paths 23 of the FPC 56 are connected to a pair of lands 57 to which the terminal portion 43 can be soldered.
  • the pair of lands 57 are made of metal such as copper foil, and both have a rectangular shape that is long in the left-right direction.
  • a through hole 59 penetrating the FPC 56 is formed between the pair of lands 57.
  • the through hole 59 has a rectangular shape that is long in the left-right direction.
  • a plurality of connecting members 41 are placed on the electrode portions 12A and 12B of the plurality of power storage elements 11. Further, the back surface of the FPC 56 on which the reinforcing plate 26 is laminated is adhered to the upper surface of the arrangement portion 28A of the insulation protector 28 with an adhesive or the like to form the wiring module 20.
  • the wiring module 20 is placed at a predetermined position on the plurality of power storage elements 11 (see FIG. 2). As a result, the plurality of terminal portions 43 of the plurality of connecting members 41 are inserted into the plurality of through holes 59 of the FPC 56 in the wiring module 20.
  • the connecting member 41 is laser-welded to the electrode portions 12A and 12B, and the molten solder S is adhered to the land 57 of the FPC 56 and the terminal portion 43 of the connecting member 41.
  • the solder S adheres to the plated portion 17 of the terminal portion 43 to form a fillet of the solder S.
  • the solder S does not adhere to the exposed portion 16A where the metal containing aluminum is exposed because the wettability of the solder is not good.
  • the molten solder S is solidified to form a flexible printed circuit board 60 (FIG. 7) with terminals in which the terminal portions 43 of the plurality of connecting members 41 are soldered to the land 57 of the FPC 56.
  • a power storage module is formed in which the FPC 56, the connecting member 41, and the electrode portions 12A and 12B are connected.
  • the third embodiment will be described with reference to FIGS. 11 to 13.
  • the flexible printed circuit board 70 with terminals of the third embodiment is soldered in a state where the terminal portion 73 is inserted into the through hole 59 from the upper side of the FPC 21. Since other configurations are the same as those of the above-described embodiment, the same components as those of the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted below.
  • the connecting member 71 is made of a metal such as aluminum or an aluminum alloy, and includes a connecting member main body 14A and a terminal portion 73 as shown in FIG.
  • the terminal portion 73 is for detecting the voltage of the connecting member 71 (and the electrode portions 12A and 12B), and is an extending portion extending from the peripheral portion of the connecting member main body 14A to the FPC21 side in a U-shaped curve.
  • a 74 and an insertion portion 76 to be inserted into the through hole 59 of the FPC 21 are provided.
  • the extending portion 74 is arranged above the upper surfaces of the connecting member main body 14A and the FPC 21.
  • the insertion portion 76 extends in a band shape along the extending direction of the FPC 21 from the tip portion extending below the extending portion 74.
  • the back surface of the FPC 21 on which the reinforcing plate 26 is laminated is adhered and fixed to the upper surface of the arrangement portion 28A of the insulation protector 28 with an adhesive or the like to form a wiring module 20, and a predetermined number of storage elements 11 are formed.
  • the wiring module 20 is placed at the position (see FIG. 2).
  • the plurality of terminal portions 73 of the plurality of connecting members 71 are inserted into the electrode portions 12A and 12B of the plurality of power storage elements 11. Place it (see Fig. 2).
  • the connecting member 71 is laser-welded to the electrode portions 12A and 12B, and the molten solder S is adhered to the land 24 of the FPC 21 and the terminal portion 73 of the connecting member 71.
  • the solder S adheres to the plated portion 17 of the terminal portion 73 to form a fillet of the solder S.
  • the solder S does not adhere to the exposed portion 16A (not shown) where the metal containing aluminum is exposed because the wettability of the solder is not good.
  • the flexible printed circuit board 80 with terminals of the fourth embodiment has a different shape of the terminal portion 83 from the third embodiment. Since other configurations are the same as those of the above-described embodiment, the same components as those of the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted below.
  • the connecting member 81 is made of a metal such as aluminum or an aluminum alloy, and includes a connecting member main body 14A and a terminal portion 83 as shown in FIG.
  • the terminal portion 83 is for detecting the voltage of the connecting member 81 (and the electrode portions 12A and 12B), and the extending portion 85 extending from the edge portion of the connecting member main body 14A toward the FPC21 side and the extending portion 85 of the extending portion 85. It is provided with an insertion portion 87 which is bent in an arc shape from the tip portion and is inserted into the through hole 25 of the FPC 21.
  • a punch hole 88 for weight reduction is formed through the extending portion 85.
  • the back surface of the FPC 21 on which the reinforcing plate 26 is superposed is adhered and fixed with an adhesive or the like on the upper surface of the arrangement portion 28A of the insulation protector 28 to form the wiring module 20.
  • the wiring module 20 is placed at a predetermined position on the plurality of power storage elements 11.
  • the plurality of terminal portions 83 of the plurality of connecting members 81 are inserted into the electrode portions 12A and 12B of the plurality of power storage elements 11. Place it.
  • the connecting member 81 is laser-welded to the electrode portions 12A and 12B, and the molten solder S is adhered to the land 24 of the FPC 21 and the terminal portion 83 of the connecting member 81.
  • the solder S adheres to the plated portion 17 of the terminal portion 83 to form a fillet of the solder S.
  • the solder S does not adhere to the exposed portion 16A of the terminal portion 83 where the metal including aluminum is exposed because the wettability of the solder is not good.
  • a flexible printed circuit board 80 (FIG. 14) with terminals is formed in which the terminal portions 83 of the plurality of connecting members 81 are soldered to the land 24 of the FPC 21. Further, a power storage module is formed in which the FPC 21, the connecting member 81, and the electrode portions 12A and 12B are connected.
  • a land 91 is provided in the FPC 21 (a position not near the through hole 25 in the), and the terminal portion of the connecting member (the connecting member is shown only in the terminal portion 93 and the others are omitted).
  • the tip of 93 (terminal) is soldered while being placed on the land 91 on the surface of the FPC 21. Since other configurations are the same as those of the above-described embodiment, the same components as those of the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted below.
  • a land 91 electrically connected to the conductive path 23 is formed on the surface of the FPC 21.
  • the lower end surface of the terminal portion 93 is in contact with the land 91.
  • the techniques described herein are not limited to the embodiments described above and in the drawings, and for example, the following embodiments are also included in the technical scope of the techniques described herein.
  • the terminal portions 15, 43, 73, 83, 93 soldered to the land 24 are integrally formed with the connecting member 14, but are not limited to this, and for example, the terminal portions separate from the connecting member (Terminals) may be formed so that a terminal portion (terminal) separate from the connecting member is soldered to the land 24.
  • the terminal portion (terminal) in this case can be connected to the connecting member by, for example, welding or soldering.
  • Vehicle 2 Storage pack 3: PCU 4: Wire harness 10: Power storage module 11: Power storage element 12A, 12B: Electrode portion 14, 41, 71, 81: Connection member 14A: Connection member main body 14B: Positioning hole 15, 43, 73, 83, 93: Terminal portion 15A , 44A, 76, 87: Insertion part 16: Terminal body 16A: Exposed part 17: Plating part 20: Wiring module 21, 56: FPC (Flexible printed circuit board) 22: Insulating resin film 23: Conductive paths 24, 57, 91: Lands 25, 59: Through holes 26: Reinforcing plate 28: Insulating protector 28A: Arrangement 29: Partition walls 30, 60, 70, 80, 90: Terminals Flexible printed circuit board with 15B, 44B, 74, 85: Extension 87: Insertion 88: Drilling hole S: Solder

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

Une carte de circuit imprimé souple avec borne selon la présente invention comporte une carte de circuit imprimé souple comprenant un trajet conducteur, et une borne soudée au trajet conducteur. La carte de circuit imprimé souple comprend un méplat qui est électriquement connecté au trajet conducteur, et auquel la borne peut être connectée par soudage. La borne comporte un corps de borne plat formé à partir d'un métal contenant de l'aluminium, et d'un placage qui est lié à la surface plate du corps de borne et est formé à partir d'un métal contenant du nickel. Le méplat et le placage sont soudés ensemble.
PCT/JP2020/023213 2019-06-19 2020-06-12 Carte de circuit imprimé souple avec borne, module de câblage et module de stockage d'énergie WO2020255877A1 (fr)

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JP2019113853 2019-06-19
JP2019-113853 2019-06-19

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010113455A1 (fr) * 2009-03-31 2010-10-07 三洋電機株式会社 Module de batterie, système de batterie et véhicule électrique
JP2011171080A (ja) * 2010-02-17 2011-09-01 Toshiba Corp 電池部品ならびに電池パックおよび電池パックの製造方法
JP2014220157A (ja) * 2013-05-09 2014-11-20 トヨタ自動車株式会社 蓄電装置、基板および蓄電装置の組立方法
JP2015069953A (ja) * 2013-10-01 2015-04-13 株式会社オートネットワーク技術研究所 電気接続構造及びそれを用いた配線モジュール
WO2016199939A1 (fr) * 2015-06-12 2016-12-15 株式会社 東芝 Batterie et batterie assemblée

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WO2010113455A1 (fr) * 2009-03-31 2010-10-07 三洋電機株式会社 Module de batterie, système de batterie et véhicule électrique
JP2011171080A (ja) * 2010-02-17 2011-09-01 Toshiba Corp 電池部品ならびに電池パックおよび電池パックの製造方法
JP2014220157A (ja) * 2013-05-09 2014-11-20 トヨタ自動車株式会社 蓄電装置、基板および蓄電装置の組立方法
JP2015069953A (ja) * 2013-10-01 2015-04-13 株式会社オートネットワーク技術研究所 電気接続構造及びそれを用いた配線モジュール
WO2016199939A1 (fr) * 2015-06-12 2016-12-15 株式会社 東芝 Batterie et batterie assemblée

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