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JP2005129260A - Battery pack - Google Patents

Battery pack Download PDF

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Publication number
JP2005129260A
JP2005129260A JP2003360854A JP2003360854A JP2005129260A JP 2005129260 A JP2005129260 A JP 2005129260A JP 2003360854 A JP2003360854 A JP 2003360854A JP 2003360854 A JP2003360854 A JP 2003360854A JP 2005129260 A JP2005129260 A JP 2005129260A
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battery
battery pack
storage bag
portions
cell
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Takeru Suzuki
長 鈴木
Noriyoshi Nanba
憲良 南波
Satoru Maruyama
哲 丸山
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TDK Corp
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TDK Corp
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    • 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

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable battery pack that is used as an auxiliary battery for a portable electronic device, excellent in portability and drivable for a long time. <P>SOLUTION: The battery pack 1 comprises a cell-housing bag 3 made of para-aramid fibers and having cell-incorporating parts 5a, 5b and 5c for respectively incorporating unit cells 13a, 13b and 13c therein. The cell-housing bag 3 is woven with cell partitions 7a, 7b provided between the cell-incorporating parts 5a, 5b and 5c, and cylinder-shaped members 14a, 14c are inserted in the stitches. The cell-housing bag 3 is formed such that the cell-incorporating parts 5a, 5b and 5c are foldable on one another at the cell partitions 7a, 7b. The cell-housing bag 3 further comprises a power supply terminal 9 for supplying power of the cells in the cell-incorporating parts 3a, 3b and 3c to an electronic device. The power supply terminal 9 is provided at an end of a power cable 11 connected to a protection circuit 27 incorporated in the cell-housing bag 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、主に携帯用電子機器の補助電池として用いられる携帯型の電池パックに関する。   The present invention relates to a portable battery pack mainly used as an auxiliary battery for portable electronic devices.

リチウムイオン２次電池は、１９９０年に発表されて以来、携帯電話機、デジタルビデオカメラ、デジタルスチルカメラ等の携帯用電子機器の電源供給用素子として広く利用されている。通常、リチウムイオン２次電池や電気二重層キャパシタ等の電気化学素子単体（以下、素電池という）は、保護回路、電子機器との接続用端子、及びその他の種々の部材と共に、熱可塑性高分子材料で形成された電池ケース内部に内蔵され、これらが一体となった電池パックとして用いられている。
特許第３４１０９６０号公報 Lithium ion secondary batteries have been widely used as power supply elements for portable electronic devices such as mobile phones, digital video cameras, and digital still cameras since they were announced in 1990. Usually, a single element of an electrochemical element (hereinafter referred to as a unit cell) such as a lithium ion secondary battery or an electric double layer capacitor is a thermoplastic polymer together with a protective circuit, a terminal for connection to an electronic device, and other various members. It is built in a battery case made of material and used as a battery pack in which these are integrated.
Japanese Patent No. 3410960

しかしながら、電池パックを用いて電子機器を長時間駆動させるには大容量の素電池を複数用いる必要があるため、電池パックが大型化してしまい携帯性、可搬性が低下してしまうという問題が生じる。さらに、電池パックが大型になると、自動車内や列車内、あるいは航空機内のように比較的狭い作業空間では電池パックの設置場所の確保が困難になり作業性が低下してしまうという問題が生じる。   However, in order to drive an electronic device for a long time using a battery pack, it is necessary to use a plurality of large-capacity cells, which causes a problem that the battery pack is enlarged and portability and portability are lowered. . Further, when the battery pack becomes large, there is a problem that it becomes difficult to secure a place for installing the battery pack in a relatively narrow work space such as in an automobile, a train, or an aircraft, and workability is deteriorated.

本発明の目的は、携帯性に優れ、長時間駆動できる電池パックを提供することにある。   An object of the present invention is to provide a battery pack which is excellent in portability and can be driven for a long time.

上記目的は、複数の電池と、繊維で形成されて前記複数の電池を収納する電池収納袋と、前記電池収納袋に備えられ前記複数の電池をそれぞれ内蔵する複数の電池内蔵部と、前記複数の電池内蔵部相互を折り曲げ可能に前記複数の電池内蔵部間の前記繊維を縫い合わせた電池仕切部とを有することを特徴とする電池パックによって達成される。   The object is to provide a plurality of batteries, a battery storage bag formed of fibers and storing the plurality of batteries, a plurality of battery built-in portions provided in the battery storage bag and each including the plurality of batteries, and the plurality of batteries. The battery pack has a battery partition part in which the fibers between the plurality of battery built-in parts are sewn so that the battery built-in parts can be bent.

上記発明の電池パックであって、前記電池仕切部の前記繊維は、線状に縫い合わされていることを特徴とする。   In the battery pack according to the invention, the fibers of the battery partition portion are sewn in a linear shape.

上記発明の電池パックであって、前記電池仕切部の前記繊維は、面状に縫い合わされていることを特徴とする。   The battery pack according to the invention is characterized in that the fibers of the battery partition portion are sewn into a planar shape.

また、上記目的は、複数の電池と、繊維で形成されて前記複数の電池を収納する電池収納袋と、前記電池収納袋に備えられ前記複数の電池をそれぞれ内蔵する複数の電池内蔵部と、前記複数の電池内蔵部相互を折り曲げ可能に前記複数の電池内蔵部間の前記繊維を編んだ電池仕切部と、前記電池仕切部の前記繊維を編んだ編目に挿入された円筒状部材とを有することを特徴とする電池パックによって達成される。   Further, the object is to provide a plurality of batteries, a battery storage bag that is formed of fibers and stores the plurality of batteries, a plurality of battery built-in portions that are provided in the battery storage bag and each include the plurality of batteries, A battery partition portion knitting the fibers between the plurality of battery built-in portions so that the plurality of battery built-in portions can be bent; and a cylindrical member inserted into a stitch of the battery partition portions knitted with the fibers. This is achieved by a battery pack characterized in that.

上記発明の電池パックであって、前記繊維は、耐熱性高分子材料であることを特徴とする。   The battery pack according to the invention is characterized in that the fiber is a heat-resistant polymer material.

上記発明の電池パックであって、前記繊維は、パラ系アラミド繊維であることを特徴とする。あるいは、上記発明の電池パックであって、前記繊維は、メタ系アラミド繊維であることを特徴とする。   The battery pack according to the invention is characterized in that the fiber is a para-aramid fiber. Or it is a battery pack of the said invention, Comprising: The said fiber is meta-aramid fiber, It is characterized by the above-mentioned.

上記発明の電池パックであって、前記電池収納袋は、電子機器に前記電池の電力を供給する電源端子をさらに有することを特徴とする。   In the battery pack according to the invention, the battery storage bag further includes a power supply terminal for supplying electric power of the battery to an electronic device.

本発明によれば、簡便で低コストでより強固に確実に電池仕切部を設けることができる。   According to the present invention, the battery partition portion can be provided more securely and securely at a low cost.

本発明の第１の実施の形態による電池パックについて図１乃至図６を用いて説明する。まず、本実施の形態による電池パック１の概略構成について図１及び図２を用いて説明する。図１は、電池パック１の外観斜視図である。図１（ａ）は、電池パック１の電池収納袋３を広げた状態の斜視図であり、図１（ｂ）は、電池パック１の電池収納袋３を折り曲げた状態の斜視図である。図１（ａ）に示すように、電池パック１は電池収納袋３を有している。電池収納袋３は、耐熱性高分子材料のパラ系芳香族ポリアミド（アラミド）繊維を編んで、長さｌ１が１３５ｍｍ、幅ｗ１が８７ｍｍ、厚さが２ｍｍの薄い袋状に形成されている。パラ系アラミド繊維として、例えばケブラー（デュポン株式会社の登録商標）が用いられている。   A battery pack according to a first embodiment of the present invention will be described with reference to FIGS. First, a schematic configuration of the battery pack 1 according to the present embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is an external perspective view of the battery pack 1. FIG. 1A is a perspective view of the battery pack 1 with the battery storage bag 3 unfolded, and FIG. 1B is a perspective view of the battery pack 1 with the battery storage bag 3 folded. As shown in FIG. 1A, the battery pack 1 has a battery storage bag 3. The battery storage bag 3 is formed in a thin bag shape having a length l1 of 135 mm, a width w1 of 87 mm, and a thickness of 2 mm by knitting a para-aromatic polyamide (aramid) fiber of a heat-resistant polymer material. For example, Kevlar (registered trademark of DuPont) is used as the para-aramid fiber.

電池収納袋３には、電池仕切部７ａ、７ｂを介して電池内蔵部５ａ、５ｂ、５ｃがそれぞれ配置されている。電池仕切部７ａ、７ｂは、電池収納袋３をケブラー製の糸で直線状に縫い合わせた電池仕切用縫合部８ａ、８ｂを有し、折り曲げ可能になっている。電池内蔵部５ａ、５ｂ、５ｃには、素電池（不図示）が内蔵されている。図１（ｂ）に示すように、電池パック１は電池仕切部７ａ、７ｂを曲げることでＳ字状に折り畳むことができる。また、電池パック１は、電池収納袋３内部に備えられた保護回路（不図示）から延出して携帯用電子機器の電源供給端子や外部充電器の電流出力端子に接続される電源端子９を端部に備えた電源ケーブル１１を有している。   In the battery storage bag 3, battery built-in portions 5a, 5b, and 5c are arranged via battery partition portions 7a and 7b, respectively. The battery partition portions 7a and 7b have battery partition stitching portions 8a and 8b obtained by stitching the battery storage bag 3 linearly with a Kevlar thread, and can be bent. Unit cells (not shown) are built in the battery built-in portions 5a, 5b, and 5c. As shown in FIG. 1B, the battery pack 1 can be folded into an S shape by bending the battery partition portions 7a and 7b. Further, the battery pack 1 has a power supply terminal 9 that extends from a protection circuit (not shown) provided inside the battery storage bag 3 and is connected to a power supply terminal of a portable electronic device or a current output terminal of an external charger. A power cable 11 is provided at the end.

図２は、電池パック１の電池収納袋３を透過して見た電池パック１の内部構造を示している。図２に示すように、電池収納袋３は、長辺側に電池収納袋３を密閉する封止用縫合部３５を有している。電池仕切部７ａ、７ｂは電池収納袋３を広げた状態で封止用縫合部３５にほぼ垂直に形成されている。電池仕切用縫合部８ａ、８ｂは、封止用縫合部３５の対向辺近傍から封止用縫合部３５に向かって、当該対向辺にほぼ垂直に素電池１３ａ、１３ｂ、１３ｃの幅ｗ２とほぼ同じ長さに形成されている。電池仕切用縫合部８ａ、８ｂで電池収納袋３の上下面を縫い合わせることで、電池仕切部７ａの両隣に素電池１３ａ、１３ｂを内蔵する電池内蔵部５ａ、５ｂが形成され、電池仕切部７ｂの両隣に素電池１３ｂ、１３ｃを内蔵する電池内蔵部５ｂ、５ｃが形成される。   FIG. 2 shows the internal structure of the battery pack 1 as seen through the battery storage bag 3 of the battery pack 1. As shown in FIG. 2, the battery storage bag 3 has a sealing seam 35 that seals the battery storage bag 3 on the long side. The battery partition portions 7a and 7b are formed substantially perpendicular to the sealing stitching portion 35 in a state where the battery storage bag 3 is expanded. The battery partition suturing portions 8a and 8b are substantially equal to the width w2 of the unit cells 13a, 13b, and 13c from the vicinity of the facing side of the sealing suturing portion 35 toward the sealing suturing portion 35 substantially perpendicular to the facing side. It is formed to the same length. By stitching the upper and lower surfaces of the battery storage bag 3 with the battery partition stitching portions 8a and 8b, the battery built-in portions 5a and 5b containing the unit cells 13a and 13b are formed on both sides of the battery partition portion 7a. The battery built-in parts 5b and 5c which contain the unit cells 13b and 13c are formed on both sides of the battery.

素電池１３ａ、１３ｂ、１３ｃは、長さｌ２が３５ｍｍ、幅ｗ２が６２ｍｍ、厚さが４ｍｍの薄板形状を有している。素電池１３ａ、１３ｂ、１３ｃの正極（不図示）は、ＰＶＤＦ（ポリフッ化ビニリデン）を６重量％、ＬｉＮｉ１／３Ｍｎ１／３Ｃｏ１／３Ｏ２を９０重量％、及びグラファイトを４重量％にして混合した組成物をＮ−メチル−２−ピロリドンでペースト化し、アルミニウム箔集電体にドクターブレード法で塗布して乾燥して形成されている。また、素電池１３ａ、１３ｂ、１３ｃの負極（不図示）は、ＰＶＤＦを１０重量％、及びＭＣＭＢ（メソカーボンマイクロビーズ）を９０重量％にして混合した組成物をＮ−メチル−２−ピロリドンでペースト化し、銅箔集電体にドクターブレード法で塗布して乾燥して形成されている。 The unit cells 13a, 13b, and 13c have a thin plate shape having a length l2 of 35 mm, a width w2 of 62 mm, and a thickness of 4 mm. The positive electrodes (not shown) of the unit cells 13a, 13b, and 13c are 6% by weight of PVDF (polyvinylidene fluoride), 90% by weight of LiNi 1/3 Mn 1/3 Co 1/3 O 2 , and 4% by weight of graphite. The composition mixed in% is pasted with N-methyl-2-pyrrolidone, applied to an aluminum foil current collector by the doctor blade method and dried. The negative electrodes (not shown) of the unit cells 13a, 13b, and 13c are composed of a mixture of 10% by weight of PVDF and 90% by weight of MCMB (mesocarbon microbeads) with N-methyl-2-pyrrolidone. It is formed into a paste, applied to a copper foil current collector by a doctor blade method and dried.

こうして形成された正極（正極集電体も含む）と負極（負極集電体も含む）とは、厚さが２５μｍのポリオレフィン製のセパレータ（不図示）を介して対面して積層されている。正極、負極、及びセパレータは、エチレン−メタクリル酸共重合体の接着剤を塗布して固定されている。正極集電体にはアルミニウム製のプラス端子部１７ａ（１７ｂ、１７ｃ）が溶接され、負極集電体にはニッケル製のマイナス端子部１９ａ（１９ｂ、１９ｃ）が溶接されている。素電池１３ａの外装体１５ａ内部に正極、負極、及びセパレータ、並びにプラス端子部１７ａ及びマイナス端子部１９ａの一部が内蔵され、所定量の電解液を注入した注入口をヒートシールして素電池１３ａの外装体１５ａが密閉されている。素電池１３ｂ（１３ｃ）も外装体１５ｂ（１５ｃ）内部に正極、負極、及びセパレータ、並びにプラス端子部１７ｂ（１７ｃ）及びマイナス端子部１９ｂ（１９ｃ）の一部が内蔵されて密閉されている。電解液は、濃度が１ｍｏｌ／ｌのＬｉＰＦ６の電解質と、エチレンカーボネートとジエチルカーボネートとを混合（混合比は体積で１：１）した溶媒とが用いられている。また、外装体１５ａ、１５ｂ、１５ｃは、アルミラミネート材料で形成されている。アルミラミネート材料は、厚さが１２μｍのＰＥＴ（ポリエチレンテレフタレート）と、厚さが４０μｍのＡｌ（アルミニウム）と、厚さが５０μｍのＰＰ（ポリプロピレン）の積層構造を有している。こうして形成された素電池１３ａ、１３ｂ、１３ｃの公称容量は６００ｍＡｈである。 The positive electrode (including the positive electrode current collector) and the negative electrode (including the negative electrode current collector) formed in this manner are laminated to face each other with a polyolefin separator (not shown) having a thickness of 25 μm. The positive electrode, the negative electrode, and the separator are fixed by applying an ethylene-methacrylic acid copolymer adhesive. Aluminum positive terminal portions 17a (17b, 17c) are welded to the positive electrode current collector, and nickel negative terminal portions 19a (19b, 19c) are welded to the negative electrode current collector. A positive electrode, a negative electrode, a separator, and a part of the plus terminal portion 17a and the minus terminal portion 19a are built in the outer body 15a of the unit cell 13a, and the inlet into which a predetermined amount of electrolyte is injected is heat-sealed to unit cell. The exterior body 15a of 13a is sealed. The unit cell 13b (13c) is also hermetically sealed with a positive electrode, a negative electrode, a separator, and a part of the plus terminal portion 17b (17c) and the minus terminal portion 19b (19c) incorporated in the outer package 15b (15c). As the electrolytic solution, a LiPF 6 electrolyte having a concentration of 1 mol / l and a solvent in which ethylene carbonate and diethyl carbonate are mixed (mixing ratio is 1: 1 by volume) are used. Further, the exterior bodies 15a, 15b, and 15c are formed of an aluminum laminate material. The aluminum laminate material has a laminated structure of PET (polyethylene terephthalate) having a thickness of 12 μm, Al (aluminum) having a thickness of 40 μm, and PP (polypropylene) having a thickness of 50 μm. The nominal capacity of the unit cells 13a, 13b, 13c formed in this way is 600 mAh.

過充電／過放電を防止する保護回路２７は素電池１３ａと封止用縫合部３５との間に配置されている。保護回路２７内の出力側プラス端子部及び出力側マイナス端子部（共に不図示）には電源ケーブル１１が接続されている。電源ケーブル１１は封止用縫合部３５を通って電池収納袋３外部に引き回されている。電源ケーブル１１端部には携帯用電子機器の電源供給端子や外部充電器の電流出力端子に接続される電源端子９が備えられている。   The protection circuit 27 for preventing overcharge / overdischarge is disposed between the unit cell 13a and the sealing stitching portion 35. The power supply cable 11 is connected to the output side plus terminal portion and the output side minus terminal portion (both not shown) in the protection circuit 27. The power cable 11 is routed outside the battery storage bag 3 through the sealing seam 35. A power supply terminal 9 connected to a power supply terminal of a portable electronic device or a current output terminal of an external charger is provided at the end of the power cable 11.

保護回路２７には、過充電／過放電等を制御するＩＣ（Ｉｎｔｅｇｒａｔｅｄ Ｃｉｒｃｕｉｔ）２９及びその他の回路素子群３１が実装されている。保護回路２７は入力側プラス端子部及び入力側マイナス端子部（共に不図示）を有し、入力側プラス端子部には、素電池１３ａのプラス端子部１７ａが接続されている。素電池１３ａのマイナス端子部１９ａはリード線２３で素電池１３ｂのプラス端子部１７ｂに接続され、素電池１３ｂのマイナス端子部１９ｂはリード線２３’で素電池１３ｃのプラス端子部１７ｃに接続されている。素電池１３ｃのマイナス端子部１９ｃはリード線２５で保護回路２７の入力側マイナス端子部に接続されている。リード線２３、２３’、２５は、直径が１．５ｍｍの柔軟なフッ素樹脂被覆導線で形成されている。リード線２３等とプラス端子部１７ｂ等とは半田２１で半田付けされ接続されている。   The protection circuit 27 is mounted with an IC (Integrated Circuit) 29 for controlling overcharge / overdischarge and other circuit element groups 31. The protection circuit 27 has an input-side plus terminal portion and an input-side minus terminal portion (both not shown), and a plus terminal portion 17a of the unit cell 13a is connected to the input-side plus terminal portion. The minus terminal portion 19a of the unit cell 13a is connected to the plus terminal portion 17b of the unit cell 13b by the lead wire 23, and the minus terminal portion 19b of the unit cell 13b is connected to the plus terminal portion 17c of the unit cell 13c by the lead wire 23 '. ing. The minus terminal portion 19 c of the unit cell 13 c is connected to the input side minus terminal portion of the protection circuit 27 by a lead wire 25. The lead wires 23, 23 'and 25 are formed of flexible fluororesin-coated conductive wires having a diameter of 1.5 mm. The lead wire 23 and the like and the plus terminal portion 17b and the like are soldered and connected with the solder 21.

電池内蔵部５ａ、５ｂ、５ｃと封止用縫合部３５との間において、リード線２３、２３’、２５は電池収納袋３にエポキシ樹脂で接着して固定されている。一方、電池仕切部７ａ、７ｂにおいて、リード線２３、２３’、２５の長さは電池仕切部７ａ、７ｂの幅より長く、電池収納袋３に固定されていない。これにより、電池パック１を電池仕切部７ａ、７ｂで折り曲げても、リード線２３、２３’、２５にねじれや引っ張り等の外力を与えずに済むようになる。   Between the battery built-in portions 5a, 5b, and 5c and the sealing stitching portion 35, the lead wires 23, 23 ', and 25 are fixed to the battery housing bag 3 by being bonded with an epoxy resin. On the other hand, in the battery partition portions 7a and 7b, the lengths of the lead wires 23, 23 'and 25 are longer than the widths of the battery partition portions 7a and 7b and are not fixed to the battery storage bag 3. Thereby, even if the battery pack 1 is bent at the battery partition portions 7a and 7b, it is not necessary to apply external force such as twisting or pulling to the lead wires 23, 23 'and 25.

図３は、素電池１３ａ、１３ｂ、１３ｃと保護回路２７との等価回路を示している。図３に示すように、保護回路２７には、直列接続された素電池１３ａ、１３ｂ、１３ｃが接続されている。例えば、各素電池１３ａ、１３ｂ、１３ｃの電圧は約３．６Ｖであるので、保護回路２７の出力側プラス端子部２０ａと出力側マイナス端子部２０ｂとの電圧は約１０．８Ｖになり、当該出力電圧が電源端子９から出力される。なお、出力側マイナス端子部２０ｂを不図示の基準電位端子に接続すれば、基準電位に対して１０．８Ｖの電圧が電源端子９から出力される。   FIG. 3 shows an equivalent circuit of the unit cells 13a, 13b, 13c and the protection circuit 27. As shown in FIG. 3, unit cells 13 a, 13 b and 13 c connected in series are connected to the protection circuit 27. For example, since the voltage of each unit cell 13a, 13b, 13c is about 3.6V, the voltage at the output side plus terminal portion 20a and the output side minus terminal portion 20b of the protection circuit 27 is about 10.8V, An output voltage is output from the power supply terminal 9. If the output side negative terminal portion 20 b is connected to a reference potential terminal (not shown), a voltage of 10.8 V is output from the power supply terminal 9 with respect to the reference potential.

次に、本実施の形態による電池パック１の製造方法について、図２乃至図６を用いて説明する。図４は、電池パック１の製造方法のフローチャートを示している。
まず、素電池１３ａ、１３ｂ、１３ｃ間の接続工程（図４のステップＳ１）について図２及び図５（ａ）を用いて説明する。素電池１３ａ、１３ｂ、１３ｃ間の接続工程（ステップＳ１）では、素電池１３ａと素電池１３ｂとがリード線２３で接続され、素電池１３ｂと素電池１３ｃとがリード線２３’で接続される。図５は、素電池１３ａのマイナス端子部１９ａにリード線２３を接続した状態の斜視図である。図２及び図５に示すように、リード線２３の一端部のフッ素樹脂被覆部を取り除いて導線部２４を露出させる。次いで、長さｌ３が４ｍｍ、幅が６ｍｍ、厚さｔ３が０．１ｍｍのマイナス端子部１９ａ上に導線部２４を半田２１で半田付けする。同様の方法で、リード線２３の他端部を素電池１３ｂのプラス端子部１７ｂに半田付けし、リード線２３’の一端部を素電池１３ｂのマイナス端子部１９ｂに半田付けし、リード線２３’の他端部を素電池１３ｃのプラス端子部１７ｃに半田付けする。これにより、素電池１３ａ、１３ｂ、１３ｃは直列に接続される。次に、素電池１３ａ、１３ｂ、１３ｃの各端子部の金属露出部分にエポキシ樹脂を塗布して被覆する。 Next, a method for manufacturing the battery pack 1 according to the present embodiment will be described with reference to FIGS. FIG. 4 shows a flowchart of the manufacturing method of the battery pack 1.
First, a connection process (step S1 in FIG. 4) between the unit cells 13a, 13b, and 13c will be described with reference to FIGS. 2 and 5A. In the connecting step (step S1) between the unit cells 13a, 13b, and 13c, the unit cell 13a and the unit cell 13b are connected by the lead wire 23, and the unit cell 13b and the unit cell 13c are connected by the lead wire 23 ′. . FIG. 5 is a perspective view of a state in which the lead wire 23 is connected to the negative terminal portion 19a of the unit cell 13a. As shown in FIGS. 2 and 5, the lead wire 23 is exposed by removing the fluororesin coating at one end of the lead wire 23. Next, the conductor portion 24 is soldered with the solder 21 on the negative terminal portion 19a having a length l3 of 4 mm, a width of 6 mm, and a thickness t3 of 0.1 mm. In the same manner, the other end portion of the lead wire 23 is soldered to the plus terminal portion 17b of the unit cell 13b, and one end portion of the lead wire 23 ′ is soldered to the minus terminal portion 19b of the unit cell 13b. The other end portion of 'is soldered to the plus terminal portion 17c of the unit cell 13c. Thereby, unit cell 13a, 13b, 13c is connected in series. Next, an epoxy resin is applied and coated on the exposed metal portions of the terminal portions of the unit cells 13a, 13b, and 13c.

次に、素電池１３ａ、１３ｃと保護回路２７との接続工程（図４のステップＳ２）について図２及び図６を用いて説明する。素電池１３ａ、１３ｃと保護回路２７との接続工程（ステップＳ２）では、直列接続された素電池１３ａ、１３ｂ、１３ｃが保護回路２７に接続される。図６は、素電池１３ａ側から見た保護回路２７の側面図である。図２及び図６に示すように、素電池１３ａのプラス端子部１７ａを保護回路２７のＩＣ２９等の部品実装面の裏面側に形成された入力側プラス端子部（不図示）に半田３７ａで半田付けする。次いで、リード線２５の一端部のフッ素樹脂被覆部を取り除いて導線部２６を露出させ、保護回路２７の部品実装面の裏面側に形成された入力側マイナス端子部（不図示）に導線部２６を半田３７ｂで半田付けする。次いで、リード線２５の他端部の導線部（不図示）を露出させ、素電池１３ｃのマイナス端子部１９ｃに当該導線部を半田付けする。これにより、図３に示す等価回路のように、直列接続された素電池１３ａ、１３ｂ、１３ｃが保護回路２７に接続される。次に、素電池１３ａ、１３ｃ及び保護回路２７の各端子部の金属露出部分にエポキシ樹脂を塗布して被覆する。   Next, the connection process (step S2 in FIG. 4) between the unit cells 13a and 13c and the protection circuit 27 will be described with reference to FIGS. In the connection step (step S2) between the unit cells 13a, 13c and the protection circuit 27, the unit cells 13a, 13b, 13c connected in series are connected to the protection circuit 27. FIG. 6 is a side view of the protection circuit 27 as viewed from the unit cell 13a side. As shown in FIGS. 2 and 6, the plus terminal portion 17a of the unit cell 13a is soldered to the input side plus terminal portion (not shown) formed on the back side of the component mounting surface such as the IC 29 of the protection circuit 27 with solder 37a. Attach. Next, the fluororesin coating portion at one end of the lead wire 25 is removed to expose the conductive wire portion 26, and the conductive wire portion 26 is connected to an input-side negative terminal portion (not shown) formed on the back side of the component mounting surface of the protection circuit 27. Is soldered with solder 37b. Next, the lead wire portion (not shown) at the other end of the lead wire 25 is exposed, and the lead wire portion is soldered to the negative terminal portion 19c of the unit cell 13c. Thereby, the unit cells 13a, 13b, 13c connected in series are connected to the protection circuit 27 as in the equivalent circuit shown in FIG. Next, an epoxy resin is applied and coated on the exposed metal portions of the terminal portions of the unit cells 13a and 13c and the protection circuit 27.

次に、保護回路２７と電源ケーブル１１との接続工程（図４のステップＳ３）について図２及び図６を用いて説明する。保護回路２７と電源ケーブル１１との接続工程（ステップＳ３）では、保護回路２７に電源ケーブル１１が接続される。図２及び図６に示すように、一端部に電源端子９を備えた電源ケーブル１１の他端部のプラス側導線部とマイナス側導線部（共に不図示）とを露出させる。次いで、保護回路２７の部品実装面の裏面側に形成された出力側プラス端子部及び出力側マイナス端子部（共に不図示）に電源ケーブル１１のプラス側導線部及びマイナス側導線部をそれぞれ半田３９ａ及び半田３９ｂで半田付けする。これにより、保護回路２７の出力側プラス端子部と出力側マイナス端子部との端子間電圧と同電圧が電源端子９から出力される。次に、保護回路２７の出力側プラス端子部及び出力側マイナス端子部の金属露出部分にエポキシ樹脂を塗布して被覆する。   Next, the connection process (step S3 in FIG. 4) between the protection circuit 27 and the power cable 11 will be described with reference to FIGS. In the connecting step (step S3) between the protection circuit 27 and the power cable 11, the power cable 11 is connected to the protection circuit 27. As shown in FIGS. 2 and 6, the plus-side conductor portion and the minus-side conductor portion (both not shown) at the other end portion of the power cable 11 having the power terminal 9 at one end portion are exposed. Next, the plus side conductor portion and the minus side conductor portion of the power cable 11 are soldered to the output side plus terminal portion and the output side minus terminal portion (both not shown) formed on the back side of the component mounting surface of the protection circuit 27, respectively. And soldering with solder 39b. As a result, the same voltage as the inter-terminal voltage between the output side plus terminal portion and the output side minus terminal portion of the protection circuit 27 is output from the power supply terminal 9. Next, an epoxy resin is applied and coated on the exposed metal portions of the output side plus terminal portion and the output side minus terminal portion of the protection circuit 27.

次に、貼付工程（図４のステップＳ４）について図２を用いて説明する。貼付工程（ステップＳ４）では、素電池１３ａ、１３ｂ、１３ｃの表裏面及び保護回路２７の部品実装面の裏面に両面テープ３３、３４が貼付される。図２に示すように、素電池１３ａ、１３ｂ、１３ｃのそれぞれの表裏面に長方形状の両面テープ３３を貼付する。次いで、保護回路２７のほぼ中央部に正方形状の両面テープ３４を貼付する。両面テープ３３、３４により、素電池１３ａ、１３ｂ、１３ｃ及び保護回路２７は電池収納袋３に貼り付けて固定される。   Next, a sticking process (step S4 of FIG. 4) is demonstrated using FIG. In the attaching step (step S4), double-sided tapes 33 and 34 are attached to the front and back surfaces of the unit cells 13a, 13b and 13c and the back surface of the component mounting surface of the protection circuit 27. As shown in FIG. 2, a rectangular double-sided tape 33 is attached to the front and back surfaces of each of the unit cells 13a, 13b, and 13c. Next, a square double-sided tape 34 is affixed to substantially the center of the protection circuit 27. The unit cells 13 a, 13 b, 13 c and the protection circuit 27 are attached to the battery storage bag 3 and fixed by the double-sided tapes 33, 34.

次に、電池内蔵部５ａ、５ｂ、５ｃの形成工程（図４のステップＳ５）について図２を用いて説明する。電池内蔵部５ａ、５ｂ、５ｃの形成工程（ステップＳ５）では、素電池１３ａ、１３ｂ、１３ｃを内蔵する電池内蔵部５ａ、５ｂ、５ｃを電池収納袋３内部に形成する。予めケブラー製の糸によって薄い袋状に形成された電池収納袋３の所定領域をケブラー製の糸で縫い合わせて電池仕切用縫合部８ａ、８ｂを形成し、電池収納袋３内側の上下を縫い合わせる。これにより、電池収納袋３の内側を分割する電池内蔵部５ａ、５ｂ、５ｃが形成される。   Next, the process of forming the battery built-in portions 5a, 5b, and 5c (step S5 in FIG. 4) will be described with reference to FIG. In the step of forming the battery built-in portions 5a, 5b, and 5c (step S5), the battery built-in portions 5a, 5b, and 5c containing the unit cells 13a, 13b, and 13c are formed inside the battery storage bag 3. A predetermined region of the battery storage bag 3 formed in a thin bag shape with Kevlar thread in advance is sewn with Kevlar thread to form the battery partition stitching portions 8a and 8b, and the upper and lower sides inside the battery storage bag 3 are sewn together. Thereby, battery built-in parts 5a, 5b, and 5c that divide the inside of the battery storage bag 3 are formed.

次に、組立工程（図４のステップＳ６）について、図２を用いて説明する。組立工程（ステップＳ６）では、電池収納袋３に素電池１３ａ、１３ｂ、１３ｃ及び保護回路２７が挿入されて固定される。素電池１３ａ、１３ｂ、１３ｃ及び保護回路２７を封止用縫合部３５側から電池収納袋３内部に挿入し、素電池１３ａ、１３ｂ、１３ｃを電池内蔵部５ａ、５ｂ、５ｃにそれぞれ配置する。次いで、両面テープ３３で素電池１３ａ、１３ｂ、１３ｃを電池収納袋３に貼り付けて固定し、次いで、両面テープ３４で保護回路２７を電池収納袋３に貼り付けて固定する。次に、電池内蔵部５ａ、５ｂ、５ｃと封止用縫合部３５との間に配線されているリード線２３、２３’、２５をエポキシ樹脂で電池収納袋３に接着して固定する。一方、電池仕切部７ａ、７ｂに配線されているリード線２３、２３’、２５は電池収納袋３に接着せずに曲げられた状態で電池収納袋３に収納される。電源端子９と電源ケーブル１１の一部は、電池収納袋３外部に配置される。   Next, the assembly process (step S6 in FIG. 4) will be described with reference to FIG. In the assembly process (step S6), the unit cells 13a, 13b, 13c and the protection circuit 27 are inserted and fixed in the battery storage bag 3. The unit cells 13a, 13b, 13c and the protection circuit 27 are inserted into the battery storage bag 3 from the sealing stitching portion 35 side, and the unit cells 13a, 13b, 13c are arranged in the battery built-in portions 5a, 5b, 5c, respectively. Next, the unit cells 13 a, 13 b and 13 c are attached and fixed to the battery storage bag 3 with the double-sided tape 33, and then the protective circuit 27 is attached to the battery storage bag 3 and fixed with the double-sided tape 34. Next, the lead wires 23, 23 ′, 25 wired between the battery built-in portions 5 a, 5 b, 5 c and the sealing stitching portion 35 are bonded and fixed to the battery storage bag 3 with an epoxy resin. On the other hand, the lead wires 23, 23 ′, 25 wired to the battery partition portions 7 a, 7 b are stored in the battery storage bag 3 in a bent state without being bonded to the battery storage bag 3. A part of the power terminal 9 and the power cable 11 is arranged outside the battery storage bag 3.

次に、封止工程（図４のステップＳ７）について、図２を用いて説明する。図２に示すように、封止工程（ステップＳ７）では、封止用縫合部３５をケブラー製の糸で縫い合わせて電池収納袋３を密閉する。以上の工程を経て、電池パック１の製造が終了する。   Next, the sealing step (step S7 in FIG. 4) will be described with reference to FIG. As shown in FIG. 2, in the sealing step (step S <b> 7), the sealing suture portion 35 is sewn with a Kevlar thread to seal the battery storage bag 3. The manufacturing of the battery pack 1 is completed through the above steps.

このように本実施の形態によれば、複雑な機構を有することなく電池パック１は電池収納袋３の電池仕切部７ａ、７ｂで電池内蔵部５ａ、５ｂ、５ｃ同士を折り曲げることができるので、折り畳んで小さくすれば、電池パック１の携帯性が向上する。また、電池収納袋３を広げて電池パック１を使用すれば、放熱面積が広くなるので発熱による素電池１３ａ、１３ｂ、１３ｃの劣化が抑制され、電池パック１は長時間の駆動が可能になる。また、電池収納袋３を形成しているケブラーは高強度、高耐熱性の材料であるため、電池パック１は、耐衝撃性や耐熱性に優れる。また、本実施の形態によれば、例えば電池収納袋３の電池仕切部７ａ、７ｂで対向する上下の布をエポキシ樹脂等の接着剤で接着して仕切り固定する方法に対して、ケブラー糸で縫い合わせるという簡便で低コストな方法でより強固に確実に仕切りを設けることができる。   Thus, according to the present embodiment, the battery pack 1 can bend the battery built-in portions 5a, 5b, and 5c with the battery partition portions 7a and 7b of the battery storage bag 3 without having a complicated mechanism. If it is folded and made small, the portability of the battery pack 1 is improved. Further, if the battery pack 1 is used with the battery storage bag 3 widened, the heat radiation area is widened, so that deterioration of the unit cells 13a, 13b, 13c due to heat generation is suppressed, and the battery pack 1 can be driven for a long time. . Further, since the Kevlar forming the battery storage bag 3 is a material having high strength and high heat resistance, the battery pack 1 is excellent in impact resistance and heat resistance. In addition, according to the present embodiment, for example, in contrast to a method in which the upper and lower cloths facing each other at the battery partition portions 7a and 7b of the battery storage bag 3 are bonded and fixed with an adhesive such as an epoxy resin, the Kevlar thread is used. The partition can be provided more firmly and securely by a simple and low-cost method of stitching together.

次に、本発明の第２の実施の形態の電池パックについて、図７及び図９を用いて説明する。本実施の形態による電池パック１の概略構成について図７を用いて説明する。図７は、電池パック１の外観斜視図である。図７（ａ）は、電池パック１の電池収納袋３を広げた状態の斜視図であり、図７（ｂ）は、電池パック１の電池収納袋３を折り曲げた状態の斜視図である。図１及び図２に示した上記実施の形態の電池パック１の構成要素と同一の作用・機能を奏する構成要素には同一の符号を付してその説明は省略する。   Next, a battery pack according to a second embodiment of the present invention will be described with reference to FIGS. A schematic configuration of the battery pack 1 according to the present embodiment will be described with reference to FIG. FIG. 7 is an external perspective view of the battery pack 1. FIG. 7A is a perspective view of the battery pack 1 of the battery pack 1 in an unfolded state, and FIG. 7B is a perspective view of the battery pack 1 of the battery pack 1 in a folded state. Components having the same functions and functions as those of the battery pack 1 of the above-described embodiment shown in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof is omitted.

図７（ａ）に示すように、電池収納袋３の電池仕切用縫合部８ａ、８ｂは、電池仕切部７ａ、７ｂの全面をケブラー製の糸で面状に縫い合わせて形成されている。電池収納袋３の封止用縫合部３５は、電池内蔵部５ａ、５ｂ、５ｃと電池収納袋３長辺との間の全面をケブラー製の糸で面状に縫い合わせて形成されている。電池仕切用縫合部８ａ、８ｂと封止用縫合部３５とで、不図示の素電池は電池内蔵部５ａ、５ｂ、５ｃに固定されている。図７（ｂ）に示すように、電池パック１は電池仕切部７ａ、７ｂを曲げることでＳ字状に折り畳むことができる。   As shown in FIG. 7A, the battery partition stitching portions 8a and 8b of the battery storage bag 3 are formed by stitching the entire surface of the battery partition portions 7a and 7b into a surface shape with a Kevlar thread. The sealing seam 35 of the battery storage bag 3 is formed by stitching the entire surface between the battery built-in portions 5a, 5b, 5c and the long side of the battery storage bag 3 in a planar shape with a Kevlar thread. The unit cell not shown is fixed to the battery built-in portions 5a, 5b, and 5c by the battery partition stitching portions 8a and 8b and the sealing stitching portion 35. As shown in FIG. 7B, the battery pack 1 can be folded into an S shape by bending the battery partition portions 7a and 7b.

図８は、電池パック１の電池収納袋３を透過して見た電池パック１の内部構造を示す図である。素電池１３ａ、１３ｂ、１３ｃは、面状に形成された電池仕切用縫合部８ａ、８ｂと封止用縫合部３５とで、電池収納袋３に固定されている。   FIG. 8 is a diagram showing the internal structure of the battery pack 1 as seen through the battery storage bag 3 of the battery pack 1. The unit cells 13a, 13b, and 13c are fixed to the battery storage bag 3 by battery partition stitching portions 8a and 8b and sealing stitching portions 35 formed in a planar shape.

次に、本実施の形態による電池パック１の製造方法について、図８及び図９を用いて説明する。図９は、電池パック１の製造方法のフローチャートを示している。図９に示すように、本実施の形態の電池パック１の製造方法は、素電池１３ａ、１３ｂ、１３ｃ間を接続し（ステップＳ１１）、次いで、素電池１３ａ、１３ｃと保護回路２７とを接続し（ステップＳ１２）、次いで、保護回路２７に電源ケーブル１１を接続し（ステップＳ１３）、次いで、素電池１３ａ、１３ｂ、１３ｃ及び保護回路２７を電池収納袋３内部に配置し、電池仕切用縫合部８ａ、８ｂ及び封止用縫合部３５を縫い合わせて電池収納袋３を形成する（ステップＳ１４）ようになっている。ステップＳ１１からステップＳ１３までは、上記実施の形態の電池パック１の製造方法のステップＳ１からステップＳ３までと同様なので、説明は省略する。   Next, a method for manufacturing the battery pack 1 according to the present embodiment will be described with reference to FIGS. FIG. 9 shows a flowchart of the manufacturing method of the battery pack 1. As shown in FIG. 9, in the method for manufacturing battery pack 1 of the present embodiment, unit cells 13a, 13b, 13c are connected (step S11), and then unit cells 13a, 13c and protection circuit 27 are connected. Then, the power cable 11 is connected to the protection circuit 27 (step S13), and then the unit cells 13a, 13b, 13c and the protection circuit 27 are arranged inside the battery storage bag 3, and are sewn for battery partitioning. The battery storage bag 3 is formed by sewing the portions 8a, 8b and the sealing stitching portion 35 (step S14). Steps S11 to S13 are the same as steps S1 to S3 of the method for manufacturing the battery pack 1 of the above embodiment, and thus the description thereof is omitted.

組立・封止工程（ステップＳ４）では、素電池１３ａ等を電池収納袋３内部に配置して固定する。図８に示すように、予めケブラー製の糸で封止用縫合部３５側を開口させて袋状に形成された電池収納袋３内部に、素電池１３ａの角部を電池収納袋３の角部に接触させて配置する。同様に電池収納袋３内部に、素電池１３ｃの角部を電池収納袋３の別の角部に接触させて配置する。次いで、素電池３ｂ短辺を封止用縫合部３５に対向する長辺に接触させ、素電池３ａ、３ｃのほぼ中央部に素電池３ｂを電池収納袋３内部に配置する。次に、素電池１３ａ近傍の封止用縫合部３５側に保護回路２７を配置する。   In the assembly / sealing process (step S4), the unit cell 13a and the like are arranged and fixed inside the battery storage bag 3. As shown in FIG. 8, the corners of the unit cell 13 a are placed in the corners of the battery storage bag 3 inside the battery storage bag 3 formed in a bag shape by opening the sealing seam 35 side with a Kevlar thread in advance. Place it in contact with the part. Similarly, the corner of the unit cell 13 c is arranged in the battery storage bag 3 in contact with another corner of the battery storage bag 3. Next, the short side of the unit cell 3b is brought into contact with the long side facing the sealing stitching portion 35, and the unit cell 3b is arranged inside the battery storage bag 3 at substantially the center of the unit cells 3a and 3c. Next, the protection circuit 27 is disposed on the sealing stitching portion 35 side in the vicinity of the unit cell 13a.

次に、電池仕切部７ａ、７ｂの全面をケブラー製の糸で面状に縫い合わせて電池仕切用縫合部８ａ、８ｂを形成する。次に、開口している封止用縫合部３５側をケブラー製の糸で面状に縫い合わせて封止用縫合部３５を形成して、電池収納袋３を密閉する。封止用縫合部３５の形成において、電池パック１を電池仕切部７ａ、７ｂで折り曲げても、リード線２３、２３’、２５にねじれや引っ張り等の外力を与えずに済むように、リード線２３、２３’、２５が配線されている電池仕切部７ａ、７ｂの一部は縫い合わさない。また、保護回路２７を配置する封止用縫合部３５の一部は縫い合わさない。これにより、電池パック１は、電池仕切部７ａ、７ｂを曲げることで折り畳むことができるようになる。さらに、電池仕切用縫合部８ａ、８ｂと封止用縫合部３５とで素電池１３ａ、１３ｂ、１３ｃを電池内蔵部５ａ、５ｂ、５ｃに固定することができる。以上の工程を経て、電池パック１の製造が終了する。   Next, the entire surfaces of the battery partition portions 7a and 7b are sewn into a planar shape with a Kevlar thread to form battery partition stitching portions 8a and 8b. Next, the sealing suture portion 35 side that is open is sewn into a planar shape with a Kevlar thread to form the sealing suture portion 35, and the battery storage bag 3 is sealed. In the formation of the sealing seam 35, the lead wires are arranged so that even if the battery pack 1 is bent at the battery partition portions 7 a, 7 b, external forces such as twisting and pulling are not applied to the lead wires 23, 23 ′, 25. Some of the battery partition portions 7a and 7b to which 23, 23 'and 25 are wired are not sewn together. Further, a part of the sealing suture portion 35 in which the protection circuit 27 is arranged is not sewn. Accordingly, the battery pack 1 can be folded by bending the battery partition portions 7a and 7b. Furthermore, the unit cells 13a, 13b, and 13c can be fixed to the battery built-in portions 5a, 5b, and 5c by the battery partition stitching portions 8a and 8b and the sealing stitching portion 35. The manufacturing of the battery pack 1 is completed through the above steps.

このように本実施の形態によれば、電池パック１は複雑な機構を有することなく電池仕切部７ａ、７ｂで折り曲げたり広げたりすることができるので、上記実施の形態と同様の効果を奏する。さらに、電池収納袋３は広い面積で縫い合わされるので、電池仕切用縫合部８ａ、８ｂや封止用縫合部３５での縫い合わせ強度が向上し、電池パック１は耐衝撃性に一層優れる。   As described above, according to the present embodiment, the battery pack 1 can be folded or widened by the battery partitioning portions 7a and 7b without having a complicated mechanism. Furthermore, since the battery storage bag 3 is sewn in a wide area, the stitching strength at the battery partition stitching portions 8a and 8b and the sealing stitching portion 35 is improved, and the battery pack 1 is further excellent in impact resistance.

本発明の第３の実施の形態の電池パックについて、図１０乃至図１３を用いて説明する。本実施の形態による電池パック１の概略構成について図１０を用いて説明する。図１０は、電池パック１の外観斜視図である。図１０（ａ）は、電池パック１の電池収納袋３を広げた状態の斜視図であり、図１０（ｂ）は、電池パック１の電池収納袋３を折り曲げた状態の斜視図である。図１及び図２に示した上記実施の形態の電池パック１の構成要素と同一の作用・機能を奏する構成要素には同一の符号を付してその説明は省略する。   A battery pack according to a third embodiment of the present invention will be described with reference to FIGS. A schematic configuration of the battery pack 1 according to the present embodiment will be described with reference to FIG. FIG. 10 is an external perspective view of the battery pack 1. FIG. 10A is a perspective view of the battery pack 1 with the battery storage bag 3 unfolded, and FIG. 10B is a perspective view of the battery pack 1 with the battery storage bag 3 folded. Components having the same functions and functions as those of the battery pack 1 of the above-described embodiment shown in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof is omitted.

図１０（ａ）に示すように、電池パック１の電池収納袋３には、電池仕切部７ａ、７ｂを介して電池内蔵部５ａ、５ｂ、５ｃがそれぞれ配置されている。電池仕切部７ａ、７ｂには、電池収納袋３を編んだ編目に円筒状部材１４ａ、１４ｂが挿入されている。電池パック１は、電池仕切部７ａ、７ｂで電池内蔵部５ａ、５ｂ、５ｃ同士を折り曲げることができるようになっている。電池内蔵部５ａ、５ｂ、５ｃには、素電池（不図示）が内蔵されている。図１０（ｂ）に示すように、電池パック１は電池仕切部７ａ、７ｂを曲げることでＳ字状に折り畳むことができる。   As shown in FIG. 10A, battery built-in portions 5a, 5b, and 5c are disposed in the battery storage bag 3 of the battery pack 1 via battery partition portions 7a and 7b, respectively. Cylindrical members 14a and 14b are inserted into the battery partitioning portions 7a and 7b in the knitted fabric of the battery storage bag 3. The battery pack 1 is configured such that the battery built-in portions 5a, 5b, and 5c can be bent at the battery partition portions 7a and 7b. Unit cells (not shown) are built in the battery built-in portions 5a, 5b, and 5c. As shown in FIG. 10B, the battery pack 1 can be folded into an S shape by bending the battery partition portions 7a and 7b.

図１１は、電池パック１の電池収納袋３を透過して見た電池パック１の内部構造を示している。図１１に示すように、電池仕切部７ａ、７ｂには、電池収納袋３を編んだ編目に円筒状部材１４ａ、１４ｂが挿入されている。円筒状部材１４ａにはリード線挿入用穴部１６ａが形成され、素電池１３ａと１３ｂとを接続するリード線２３及び素電池１３ｃと保護回路２７とを接続するリード線２５が挿入されている。同様に、円筒状部材１４ｂにはリード線挿入用穴部１６ｂが形成され、素電池１３ｂと１３ｃとを接続するリード線２３’及び素電池１３ｃと保護回路２７とを接続するリード線２５が挿入されている。これにより、電池パック１を電池仕切部７ａ、７ｂで折り曲げても、リード線２３、２３’、２５にねじれや引っ張り等の外力を与えずに済むようになる。   FIG. 11 shows the internal structure of the battery pack 1 as seen through the battery storage bag 3 of the battery pack 1. As shown in FIG. 11, cylindrical members 14 a and 14 b are inserted into the battery partition portions 7 a and 7 b in the knitting stitches of the battery storage bag 3. A lead wire insertion hole 16a is formed in the cylindrical member 14a, and a lead wire 23 for connecting the unit cells 13a and 13b and a lead wire 25 for connecting the unit cell 13c and the protection circuit 27 are inserted. Similarly, a lead wire insertion hole 16b is formed in the cylindrical member 14b, and a lead wire 23 ′ for connecting the unit cells 13b and 13c and a lead wire 25 for connecting the unit cell 13c and the protection circuit 27 are inserted. Has been. Thereby, even if the battery pack 1 is bent at the battery partition portions 7a and 7b, it is not necessary to apply external force such as twisting or pulling to the lead wires 23, 23 'and 25.

次に、本実施の形態による電池パック１の製造方法について、図１１乃至図１３を用いて説明する。図１２は、電池パック１の製造方法のフローチャートを示している。
本実施の形態による電池パック１の製造方法は、第１及び第２のケブラー布３ａ、３ｂの編目に円筒状部材１４ａ、１４ｂを挿入し（ステップＳ２１）、次に、素電池１３ａ、１３ｂ、１３ｃ及び保護回路２７に両面テープ３３、３４を貼付し（ステップＳ２２）、次に、第１及び第２のケブラー布３ａ、３ｂ間に素電池１３ａ、１３ｂ、１３ｃを配置して素電池１３ａ、１３ｂ、１３ｃ間を接続し（ステップＳ２３）、次に、第１及び第２のケブラー布３ａ、３ｂ間に保護回路２７を配置して素電池１３ａ、１３ｃと保護回路２７とを接続し（ステップＳ２４）、次に、保護回路２７に電源ケーブル１１を接続し（ステップＳ２５）、次に、封止用縫合部３５を縫い合わせて、電池収納袋３を形成する（ステップＳ２６）ようになっている。 Next, a method for manufacturing the battery pack 1 according to the present embodiment will be described with reference to FIGS. FIG. 12 shows a flowchart of the manufacturing method of the battery pack 1.
In the method of manufacturing the battery pack 1 according to the present embodiment, the cylindrical members 14a and 14b are inserted into the stitches of the first and second Kevlar cloths 3a and 3b (step S21), and then the unit cells 13a, 13b, Double-sided tapes 33 and 34 are affixed to 13c and the protection circuit 27 (step S22), and then the unit cells 13a, 13b, and 13c are arranged between the first and second Kevlar cloths 3a and 3b, 13b and 13c are connected (step S23), and then the protection circuit 27 is disposed between the first and second Kevlar cloths 3a and 3b to connect the cells 13a and 13c and the protection circuit 27 (step S23). Next, the power cable 11 is connected to the protection circuit 27 (step S25), and then the sealing seam 35 is sewn together to form the battery storage bag 3 (step S26).

まず、電池収納袋３の編み工程（図１２のステップＳ２１）について図１３を用いて説明する。図１２のステップＳ２１において、最終的に電池収納袋３になる第１のケブラー布３ａ及び第２のケブラー布３ｂを編んだ編目に円筒状部材１４ａ、１４ｂを挿入する。図１３は、電池仕切部７ａ近傍の拡大図である。図１３（ａ）は、第１及び第２のケブラー布３ａ、３ｂの編目に円筒状部材１４ａを挿入している状態の斜視図である。図１３（ｂ）は、円筒状部材１４ａの挿入方向から見た電池仕切部７ａ近傍の拡大図である。   First, the knitting process (step S21 in FIG. 12) of the battery storage bag 3 will be described with reference to FIG. In step S21 of FIG. 12, the cylindrical members 14a and 14b are inserted into the stitches of the first Kevlar cloth 3a and the second Kevlar cloth 3b that will eventually become the battery storage bag 3. FIG. 13 is an enlarged view of the vicinity of the battery partition 7a. FIG. 13A is a perspective view of a state in which the cylindrical member 14a is inserted into the stitches of the first and second Kevlar cloths 3a and 3b. FIG. 13B is an enlarged view of the vicinity of the battery partition 7a as seen from the insertion direction of the cylindrical member 14a.

図１３（ａ）に示す範囲内で、第１のケブラー布３ａの横糸Ｈ１ａ、Ｈ２ａと縦糸Ｖ１ａ、Ｖ２ａ、Ｖ３ａ、Ｖ４ａとは十字格子状に交差して編まれている。横糸Ｈ１ａ、Ｈ２ａは電池仕切部７ａにほぼ直交し、縦糸Ｖ１ａ、Ｖ２ａ、Ｖ３ａ、Ｖ４ａは電池仕切部７ｂにほぼ平行になっている。横糸Ｈ１ａ、Ｈ２ａと縦糸Ｖ１ａ、Ｖ２ａ、Ｖ３ａ、Ｖ４ａとの各交差部では、相隣り合う縦糸Ｖ１ａ、Ｖ２ａ、Ｖ３ａ、Ｖ４ａは横糸Ｈ１ａ、Ｈ２ａとの交差状態が上下逆転するように編まれている。縦糸Ｖ１ａが横糸Ｈ１ａの上側を通っている場合には、縦糸Ｖ１ａの隣の縦糸Ｖ２ａは横糸Ｈ１ａの下側を通っている。縦糸Ｖ２ａの隣の縦糸Ｖ３ａは横糸Ｈ１ａの上側を通り、縦糸Ｖ３ａの隣の縦糸Ｖ４ａは横糸Ｈ１ａの下側を通っている。   Within the range shown in FIG. 13 (a), the weft yarns H1a, H2a and the warp yarns V1a, V2a, V3a, V4a of the first Kevlar cloth 3a are knitted so as to intersect in a cross lattice shape. The wefts H1a and H2a are substantially orthogonal to the battery partition 7a, and the warps V1a, V2a, V3a and V4a are substantially parallel to the battery partition 7b. At each intersection of the weft yarns H1a, H2a and the warp yarns V1a, V2a, V3a, V4a, the adjacent warp yarns V1a, V2a, V3a, V4a are knitted so that the intersecting state with the weft yarns H1a, H2a is upside down. . When the warp yarn V1a passes through the upper side of the weft yarn H1a, the warp yarn V2a adjacent to the warp yarn V1a passes through the lower side of the weft yarn H1a. The warp yarn V3a adjacent to the warp yarn V2a passes above the weft yarn H1a, and the warp yarn V4a adjacent to the warp yarn V3a passes below the weft yarn H1a.

横糸Ｈ１ａに隣接して編まれた横糸Ｈ２ａと縦糸Ｖ１ａ、Ｖ２ａ、Ｖ３ａ、Ｖ４ａとの交差部の上下関係は、横糸Ｈ１ａとの上下関係と逆転するように編まれている。つまり、縦糸Ｖ１ａは横糸Ｈ２ａの下側を通り、縦糸Ｖ２ａは横糸Ｈ２ａの上側を通り、縦糸Ｖ３ａは横糸Ｈ２ａの下側を通り、縦糸Ｖ４ａは横糸Ｈ２ａの上側を通っている。これにより、横糸Ｈ２ａと縦糸Ｖ１ａ、Ｖ２ａ、Ｖ３ａ、Ｖ４ａとの交差部において、相隣り合う縦糸Ｖ１ａ、Ｖ２ａ、Ｖ３ａ、Ｖ４ａは横糸Ｈ２ａとの交差状態が上下逆転するように編まれている。また、電池仕切部７ａには、縦糸は編まれていない。第２のケブラー布３ｂも横糸Ｈ１ｂ、Ｈ２ｂ及び縦糸Ｖ１ｂ、Ｖ２ｂ、Ｖ３ｂ、Ｖ４ｂが同様の形状に編まれて形成されている。   The vertical relationship at the intersection of the weft yarn H2a knitted adjacent to the weft yarn H1a and the warp yarns V1a, V2a, V3a, V4a is knitted so as to reverse the vertical relationship with the weft yarn H1a. That is, the warp V1a passes below the weft H2a, the warp V2a passes above the weft H2a, the warp V3a passes below the weft H2a, and the warp V4a passes above the weft H2a. Thereby, in the intersection part of the weft H2a and the warp yarns V1a, V2a, V3a, V4a, the adjacent warp yarns V1a, V2a, V3a, V4a are knitted so that the intersecting state of the weft thread H2a is upside down. The warp yarn is not knitted in the battery partition 7a. The second Kevlar cloth 3b is also formed by weaving the weft yarns H1b, H2b and the warp yarns V1b, V2b, V3b, V4b in the same shape.

第２のケブラー布３ｂの上側に第１のケブラー布３ａを所定の間隙を設けて対面して配置し、電池仕切部７ａの間隙に、円筒状部材１４ａの端部を挿入する。まず、円筒状部材１４ａの上側に横糸Ｈ１ｂが通るように円筒状部材１４ａを電池仕切部７ａに挿入する。次いで、円筒状部材１４ａを電池仕切部７ａにさらに挿入し、横糸Ｈ１ａを円筒状部材１４ａの下側に通す。次いで、円筒状部材１４ａを電池仕切部７ａにさらに挿入して、横糸Ｈ２ｂを円筒状部材１４ａの上側に通す。次いで、円筒状部材１４ａを電池仕切部７ａにさらに挿入し、横糸Ｈ２ａを円筒状部材１４ａの下側に通す。このように、上側に配置された第１のケブラー布３ａの横糸Ｈ１ａ、Ｈ２ａは、円筒状部材１４ａの下側に通され、下側に配置された第２のケブラー布３ｂの横糸Ｈ１ｂ、Ｈ２ｂは、円筒状部材１４ａの上側に通されるように編む。電池仕切部７ａを横切る全ての横糸を円筒状部材１４ａで編み上げる。こうして、円筒状部材１４ａは電池仕切部７ａの編目に挿入される。同様の方法で、電池仕切部７ｂに円筒状部材１４ｂを挿入する。   The first Kevlar cloth 3a is arranged on the upper side of the second Kevlar cloth 3b so as to face each other with a predetermined gap, and the end of the cylindrical member 14a is inserted into the gap of the battery partition 7a. First, the cylindrical member 14a is inserted into the battery partition 7a so that the weft H1b passes above the cylindrical member 14a. Next, the cylindrical member 14a is further inserted into the battery partition 7a, and the weft H1a is passed through the lower side of the cylindrical member 14a. Next, the cylindrical member 14a is further inserted into the battery partition 7a, and the weft H2b is passed over the cylindrical member 14a. Next, the cylindrical member 14a is further inserted into the battery partition 7a, and the weft H2a is passed through the lower side of the cylindrical member 14a. Thus, the weft threads H1a and H2a of the first Kevlar cloth 3a arranged on the upper side are passed through the lower side of the cylindrical member 14a and the weft threads H1b and H2b of the second Kevlar cloth 3b arranged on the lower side. Is knitted so as to be passed through the upper side of the cylindrical member 14a. All the wefts crossing the battery partition 7a are knitted by the cylindrical member 14a. In this way, the cylindrical member 14a is inserted into the stitch of the battery partition 7a. In the same way, the cylindrical member 14b is inserted into the battery partition 7b.

次に、貼付工程（図１２のステップＳ２２）で、素電池１３ａ、１３ｂ、１３ｃの表裏面に両面テープ３３を貼付し、次いで、保護回路２７の部品実装面の裏面に両面テープ３４を貼付する。   Next, in the attaching step (step S22 in FIG. 12), the double-sided tape 33 is attached to the front and back surfaces of the unit cells 13a, 13b, and 13c, and then the double-sided tape 34 is attached to the back surface of the component mounting surface of the protection circuit 27. .

次に、素電池１３ａ、１３ｂ、１３ｃ間の接続工程（図１２のステップＳ２３）について、図１１を用いて説明する。素電池１３ａ、１３ｂ、１３ｃ間の接続工程（ステップＳ２３）では、素電池１３ａと素電池１３ｂとがリード線２３で接続され、素電池１３ｂと素電池１３ｃとがリード線２３’で接続される。図１１に示すように、素電池１３ａ、１３ｂ、１３ｃ及び保護回路２７を第１及び第２のケブラー布３ａ、３ｂ間に配置し、次いで、第２のケブラー布３ｂ上の最終的に電池内蔵部５ａ、５ｂ、５ｃになる位置に両面テープ３３で固定する。次いで、保護回路２７を第２のケブラー布３ｂ上の素電池１３ａと封止用縫合部３５との間に両面テープ３４で固定する。次に、リード線２３を円筒状部材１４ａに形成されたリード線挿入用穴部１６ａに挿入し、上記実施の形態のステップＳ１で説明した方法で、素電池１３ａと素電池１３ｂとを接続する。次いで、リード線２３’を円筒状部材１４ｂに形成されたリード線挿入用穴部１６ｂに挿入し、上記実施の形態のステップＳ１で説明した方法で、素電池１３ｂと素電池１３ｃとを接続する。   Next, a connection process (step S23 in FIG. 12) between the unit cells 13a, 13b, and 13c will be described with reference to FIG. In the connecting step (step S23) between the unit cells 13a, 13b, and 13c, the unit cell 13a and the unit cell 13b are connected by the lead wire 23, and the unit cell 13b and the unit cell 13c are connected by the lead wire 23 ′. . As shown in FIG. 11, the unit cells 13a, 13b, 13c and the protection circuit 27 are arranged between the first and second Kevlar cloths 3a, 3b, and then the battery is finally built on the second Kevlar cloth 3b. It fixes with the double-stick tape 33 in the position used as the part 5a, 5b, 5c. Next, the protective circuit 27 is fixed with a double-sided tape 34 between the unit cell 13 a on the second Kevlar cloth 3 b and the sealing stitching portion 35. Next, the lead wire 23 is inserted into the lead wire insertion hole 16a formed in the cylindrical member 14a, and the unit cell 13a and the unit cell 13b are connected by the method described in step S1 of the above embodiment. . Next, the lead wire 23 'is inserted into the lead wire insertion hole 16b formed in the cylindrical member 14b, and the unit cell 13b and the unit cell 13c are connected by the method described in step S1 of the above embodiment. .

次に、素電池１３ａ、１３ｃと保護回路２７との接続工程（図１１のステップＳ２４）について図１１を用いて説明する。素電池１３ａ、１３ｃと保護回路２７との接続工程（ステップＳ２４）では、直列接続された素電池１３ａ、１３ｂ、１３ｃが保護回路２７に接続される。まず、リード線２５を円筒状部材１４ａ、１４ｂに形成されたリード線挿入用穴部１６ａ、１６ｂに挿入し、次いで、上記実施の形態のステップＳ２で説明した方法で、素電池１３ｂと素電池１３ｃとを接続する。   Next, a connection process (step S24 in FIG. 11) between the unit cells 13a and 13c and the protection circuit 27 will be described with reference to FIG. In the connecting step (step S24) between the unit cells 13a, 13c and the protection circuit 27, the unit cells 13a, 13b, 13c connected in series are connected to the protection circuit 27. First, the lead wire 25 is inserted into the lead wire insertion holes 16a and 16b formed in the cylindrical members 14a and 14b, and then the unit cell 13b and the unit cell by the method described in step S2 of the above embodiment. 13c is connected.

次に、保護回路２７と電源ケーブル１１との接続工程（図１２のステップＳ２５）では、上記実施の形態のステップＳ３で説明した方法で、保護回路２７と電源ケーブル１１とを接続する。   Next, in the step of connecting the protection circuit 27 and the power cable 11 (step S25 in FIG. 12), the protection circuit 27 and the power cable 11 are connected by the method described in step S3 of the above embodiment.

次に、組立・封止工程（図１２のステップＳ２６）について、図１１を用いて説明する。組立・封止工程（ステップＳ２６）では、素電池１３ａ、１３ｂ、１３ｃを第１及び第２のケブラー布３ａ、３ｂ間に固定し、第１及び第２のケブラー布３ａ、３ｂの封止用縫合部３５を縫い合わせて、電池収納袋３を形成する。図１１に示すように、素電池１３ａ、１３ｂ、１３ｃを第１のケブラー布３ａに両面テープ３３で固定する。次に、第２のケブラー布３ｂ上に配線されているリード線２３、２３’、２５をエポキシ樹脂で第２のケブラー布３ｂに接着して固定する。一方、リード線挿入用穴部１６ａ、１６ｂに配線されているリード線２３、２３’、２５はリード線挿入用穴部１６ａ、１６ｂに固定せずに曲げられた状態で配線される。電源端子９と電源ケーブル１１の一部は、第１及び第２のケブラー布３ａ、３ｂ間外部に配置される。次に、第１及び第２のケブラー布３ａ、３ｂの周囲に設けられた封止用縫合部３５を縫い合わせて電池収納袋３を形成する。以上の工程を経て、電池パック１の製造が終了する。   Next, the assembly / sealing process (step S26 in FIG. 12) will be described with reference to FIG. In the assembly / sealing process (step S26), the unit cells 13a, 13b, 13c are fixed between the first and second Kevlar cloths 3a, 3b, and the first and second Kevlar cloths 3a, 3b are sealed. The battery storage bag 3 is formed by sewing the stitching portion 35 together. As shown in FIG. 11, the unit cells 13a, 13b, and 13c are fixed to the first Kevlar cloth 3a with a double-sided tape 33. Next, the lead wires 23, 23 'and 25 wired on the second Kevlar cloth 3b are bonded and fixed to the second Kevlar cloth 3b with an epoxy resin. On the other hand, the lead wires 23, 23 ', 25 wired in the lead wire insertion holes 16a, 16b are wired in a bent state without being fixed to the lead wire insertion holes 16a, 16b. A part of the power supply terminal 9 and the power supply cable 11 are arranged outside between the first and second Kevlar cloths 3a and 3b. Next, the battery storage bag 3 is formed by stitching together the sealing seams 35 provided around the first and second Kevlar cloths 3a and 3b. The manufacturing of the battery pack 1 is completed through the above steps.

図１３（ｂ）は、円筒状部材１４ａの挿入方向から見た電池仕切部７ａ近傍を示している。上記で説明した電池収納袋３は、図１３（ｂ）に示すように、第１のケブラー布３ａと第２のケブラー布３ｂとを矢印Ａで示す方向に縫い合わせて形成されている。これに対し、円筒状部材１４ａを中心に図中矢印Ｂで示す方向に第１のケブラー布３ａを折り曲げて重ね合わせ、重ね合わされた第１のケブラー布３ａ周囲を縫い合わせても、素電池（不図示）が内蔵できる袋状に第１のケブラー布３ａを形成することができる。同様に、円筒状部材１４ａを中心に図中矢印Ｃで示す方向に第２のケブラー布３ｂを折り曲げて重ね合わせて縫い合わせれば、第２のケブラー布３ｂを袋状に形成することができる。このような縫い合わせ方法でも、電池仕切部７ａに隣接して電池内蔵部（不図示）が配置された電池収納袋３を形成することができる。   FIG.13 (b) has shown the battery partition part 7a vicinity seen from the insertion direction of the cylindrical member 14a. The battery storage bag 3 described above is formed by sewing the first Kevlar cloth 3a and the second Kevlar cloth 3b in the direction indicated by the arrow A, as shown in FIG. 13 (b). On the other hand, even if the first Kevlar cloth 3a is folded and overlapped around the cylindrical member 14a in the direction indicated by the arrow B in the figure, and the surroundings of the overlapped first Kevlar cloth 3a are sewn together, a unit cell (non- The first Kevlar cloth 3a can be formed in a bag shape that can be incorporated therein. Similarly, the second Kevlar cloth 3b can be formed into a bag shape by folding the second Kevlar cloth 3b around the cylindrical member 14a in the direction indicated by the arrow C in the drawing and stitching them together. Even with such a sewing method, it is possible to form the battery storage bag 3 in which a battery built-in part (not shown) is arranged adjacent to the battery partition part 7a.

このように本実施の形態によれば、電池パック１は複雑な機構を有することなく電池仕切部７ａ、７ｂで折り曲げたり広げたりすることができるので、上記実施の形態と同様の効果を奏する。さらに、電池仕切部７ａ、７ｂに円筒状部材１４ａ、１４ｂが挿入されているので、電池パック１はねじれ難くなる。   As described above, according to the present embodiment, the battery pack 1 can be folded or widened by the battery partitioning portions 7a and 7b without having a complicated mechanism. Furthermore, since the cylindrical members 14a and 14b are inserted into the battery partition portions 7a and 7b, the battery pack 1 is hardly twisted.

本発明は、上記実施の形態に限らず種々の変形が可能である。
上記実施の形態では、電池収納袋３は、ケブラー製の糸で形成されているが、本発明はこれに限られない。例えば、ケブラーに代えて、エンジニアリングプラスチック、中でも芳香族ポリアミド（アラミド）製であればよく、メタ系アラミド繊維のノーメックス（デュポン株式会社の登録商標）でも同様の効果を奏する。 The present invention is not limited to the above embodiment, and various modifications can be made.
In the said embodiment, although the battery storage bag 3 is formed with the thread | yarn made from Kevlar, this invention is not limited to this. For example, instead of Kevlar, it may be made of engineering plastic, especially aromatic polyamide (aramid), and the same effect can be obtained with Nomex (registered trademark of DuPont) of meta-aramid fiber.

また、上記実施の形態では、素電池１３ａ、１３ｂ、１３ｃ及び保護回路２７のそれぞれをフッ素樹脂被覆導線のリード線２３、２３’、２５で接続しているが、本発明はこれに限られない。例えば、フッ素樹脂被覆導線に代えて、ＦＰＣ（Ｆｌｅｘｉｂｌｅ Ｐｒｉｎｔｅｄ Ｃｉｒｃｕｉｔ）又は樹脂に金属粉末を混合した導電性高分子リード線であってもよい。ＦＰＣ等は、柔軟性を有しているので、電池仕切部７ａ、７ｂに配線されても電池パック１を折り曲げることができるので、同様の効果を奏する。   Moreover, in the said embodiment, although unit cell 13a, 13b, 13c and each of the protection circuit 27 are connected with the lead wires 23, 23 ', 25 of the fluororesin covering conducting wire, this invention is not limited to this. . For example, instead of the fluororesin-coated conductive wire, a conductive polymer lead wire in which metal powder is mixed with FPC (Flexible Printed Circuit) or resin may be used. Since the FPC or the like has flexibility, the battery pack 1 can be bent even if it is wired to the battery partition portions 7a and 7b.

また、上記実施の形態では、３個の電池内蔵部５ａ、５ｂ、５ｃを有する電池収納袋３について説明したが、本発明はこれに限られない。例えば、２つ又は４つ以上の電池内蔵部を有する電池収納袋３であってもよい。この場合、電池収納袋３には２個又は４個以上の素電池が内蔵される。   Moreover, although the said embodiment demonstrated the battery storage bag 3 which has the three battery built-in parts 5a, 5b, 5c, this invention is not limited to this. For example, the battery storage bag 3 having two or four or more battery built-in portions may be used. In this case, the battery storage bag 3 contains two or four or more unit cells.

また、上記実施の形態では、リチウムイオン２次電池について説明したが、本発明はこれに限られない。リチウムイオン２次電池以外の電気化学デバイス、例えば、電気二重層キャパシタ等に用いた場合も、同様の効果を奏する。   Moreover, in the said embodiment, although the lithium ion secondary battery was demonstrated, this invention is not limited to this. Similar effects can be obtained when used in electrochemical devices other than lithium ion secondary batteries, such as electric double layer capacitors.

本発明の第１の実施の形態による電池パック１の概略構成を示す斜視図である。図１（ａ）は、電池パック１の電池収納袋３を広げた状態の斜視図であり、図１（ｂ）は、電池パック１の電池収納袋３を折り曲げた状態の斜視図である。It is a perspective view which shows schematic structure of the battery pack 1 by the 1st Embodiment of this invention. FIG. 1A is a perspective view of the battery pack 1 with the battery storage bag 3 unfolded, and FIG. 1B is a perspective view of the battery pack 1 with the battery storage bag 3 folded. 本発明の第１の実施の形態による電池パック１の内部構造を示す図である。It is a figure which shows the internal structure of the battery pack 1 by the 1st Embodiment of this invention. 本発明の第１の実施の形態による電池パック１の素電池１３ａ、１３ｂ、１３ｃと保護回路２７との等価回路を示す図である。FIG. 3 is a diagram showing an equivalent circuit of unit cells 13a, 13b, 13c and a protection circuit 27 of the battery pack 1 according to the first embodiment of the present invention. 本発明の第１の実施の形態による電池パック１の製造方法のフローチャートを示す図である。It is a figure which shows the flowchart of the manufacturing method of the battery pack 1 by the 1st Embodiment of this invention. 本発明の第１の実施の形態による電池パック１の素電池１３ａのマイナス端子部１９ａにリード線２３を接続した状態の斜視図である。It is a perspective view in the state where lead wire 23 was connected to minus terminal part 19a of unit cell 13a of battery pack 1 by a 1st embodiment of the present invention. 本発明の第１の実施の形態による電池パック１の素電池１３ａ側から見た保護回路２７の側面図である。It is the side view of the protection circuit 27 seen from the unit cell 13a side of the battery pack 1 by the 1st Embodiment of this invention. 本発明の第２の実施の形態による電池パック１の概略構成を示す斜視図である。図１（ａ）は、電池パック１の電池収納袋３を広げた状態の斜視図であり、図１（ｂ）は、電池パック１の電池収納袋３を折り曲げた状態の斜視図である。It is a perspective view which shows schematic structure of the battery pack 1 by the 2nd Embodiment of this invention. FIG. 1A is a perspective view of the battery pack 1 with the battery storage bag 3 unfolded, and FIG. 1B is a perspective view of the battery pack 1 with the battery storage bag 3 folded. 本発明の第２の実施の形態による電池パック１の内部構造を示す図である。It is a figure which shows the internal structure of the battery pack 1 by the 2nd Embodiment of this invention. 本発明の第２の実施の形態による電池パック１の製造方法のフローチャートを示す図である。It is a figure which shows the flowchart of the manufacturing method of the battery pack 1 by the 2nd Embodiment of this invention. 本発明の第３の実施の形態による電池パック１の概略構成を示す斜視図である。図１（ａ）は、電池パック１の電池収納袋３を広げた状態の斜視図であり、図１（ｂ）は、電池パック１の電池収納袋３を折り曲げた状態の斜視図である。It is a perspective view which shows schematic structure of the battery pack 1 by the 3rd Embodiment of this invention. FIG. 1A is a perspective view of the battery pack 1 with the battery storage bag 3 unfolded, and FIG. 1B is a perspective view of the battery pack 1 with the battery storage bag 3 folded. 本発明の第３の実施の形態による電池パック１の内部構造を示す図である。It is a figure which shows the internal structure of the battery pack 1 by the 3rd Embodiment of this invention. 本発明の第３の実施の形態による電池パック１の製造方法のフローチャートを示す図である。It is a figure which shows the flowchart of the manufacturing method of the battery pack 1 by the 3rd Embodiment of this invention. 本発明の第３の実施の形態による電池パック１の電池仕切部７ａ近傍の拡大図である。図１３（ａ）は、第１及び第２のケブラー布３ａ、３ｂに円筒状部材１４ａを挿入している状態の斜視図である。図１３（ｂ）は、円筒状部材１４ａの挿入方向から見た電池仕切部７ａ近傍の拡大図である。It is an enlarged view of the battery partition part 7a vicinity of the battery pack 1 by the 3rd Embodiment of this invention. Fig.13 (a) is a perspective view of the state which has inserted the cylindrical member 14a in the 1st and 2nd Kevlar cloth 3a, 3b. FIG. 13B is an enlarged view of the vicinity of the battery partition 7a as seen from the insertion direction of the cylindrical member 14a.

符号の説明Explanation of symbols

１ 電池パック
３ 電池収納袋
３ａ 第１のケブラー布
３ｂ 第２のケブラー布
５ａ、５ｂ、５ｃ 電池内蔵部
７ａ、７ｂ 電池仕切部
８ａ、８ｂ 電池仕切用縫合部
９ 電源端子
１１ 電源ケーブル
１３ａ、１３ｂ、１３ｃ 素電池
１４ａ、１４ｂ 円筒状部材
１５ａ、１５ｂ、１５ｃ 外装体
１６ａ、１６ｂ リード線挿入用穴部
１７ａ、１７ｂ、１７ｃ プラス端子部
１９ａ、１９ｂ、１９ｃ マイナス端子部
２０ａ 出力側プラス端子部
２０ｂ 出力側マイナス端子部
２１、３７ａ、３７ｂ、３９ａ、３９ｂ 半田
２３、２３’、２５ リード線
２４、２６ 導線部
２７ 保護回路
２９ ＩＣ
３１ 回路素子群
３３、３４ 両面テープ
３５ 封止用縫合部
Ｈ１ａ、Ｈ２ａ、Ｈ１ｂ、Ｈ２ｂ 横糸
Ｖ１ａ、Ｖ２ａ、Ｖ３ａ、Ｖ４ａ、Ｖ１ｂ、Ｖ２ｂ、Ｖ３ｂ、Ｖ４ｂ 縦糸 DESCRIPTION OF SYMBOLS 1 Battery pack 3 Battery storage bag 3a 1st Kevlar cloth 3b 2nd Kevlar cloth 5a, 5b, 5c Battery built-in part 7a, 7b Battery partition part 8a, 8b Battery partition stitching part 9 Power terminal 11 Power cable 13a, 13b , 13c Unit cells 14a, 14b Cylindrical members 15a, 15b, 15c Exterior bodies 16a, 16b Lead wire insertion holes 17a, 17b, 17c Plus terminal parts 19a, 19b, 19c Negative terminal part 20a Output side plus terminal part 20b Output Side minus terminal portion 21, 37a, 37b, 39a, 39b Solder 23, 23 ', 25 Lead wire 24, 26 Conductor portion 27 Protection circuit 29 IC
31 Circuit element group 33, 34 Double-sided tape 35 Sealing stitches H1a, H2a, H1b, H2b Weft yarns V1a, V2a, V3a, V4a, V1b, V2b, V3b, V4b Warp yarn

Claims (8)

複数の電池と、
繊維で形成されて前記複数の電池を収納する電池収納袋と、
前記電池収納袋に備えられ前記複数の電池をそれぞれ内蔵する複数の電池内蔵部と、
前記複数の電池内蔵部相互を折り曲げ可能に前記複数の電池内蔵部間の前記繊維を縫い合わせた電池仕切部と
を有することを特徴とする電池パック。 Multiple batteries,
A battery storage bag formed of fiber and storing the plurality of batteries;
A plurality of battery built-in portions that are provided in the battery storage bag and each contain the plurality of batteries;
A battery pack comprising: a battery partition part in which the fibers between the plurality of battery built-in parts are sewn so that the plurality of battery built-in parts can be bent. 請求項１記載の電池パックであって、
前記電池仕切部の前記繊維は、線状に縫い合わされていること
を特徴とする電池パック。 The battery pack according to claim 1,
The battery pack, wherein the fibers of the battery partition portion are sewn in a linear shape. 請求項１記載の電池パックであって、
前記電池仕切部の前記繊維は、面状に縫い合わされていること
を特徴とする電池パック。 The battery pack according to claim 1,
The battery pack, wherein the fibers of the battery partition are stitched together in a planar shape. 複数の電池と、
繊維で形成されて前記複数の電池を収納する電池収納袋と、
前記電池収納袋に備えられ前記複数の電池をそれぞれ内蔵する複数の電池内蔵部と、
前記複数の電池内蔵部相互を折り曲げ可能に前記複数の電池内蔵部間の前記繊維を編んだ電池仕切部と、
前記電池仕切部の前記繊維を編んだ編目に挿入された円筒状部材と
を有することを特徴とする電池パック。 Multiple batteries,
A battery storage bag formed of fiber and storing the plurality of batteries;
A plurality of battery built-in portions that are provided in the battery storage bag and each contain the plurality of batteries;
A battery partition part knitted with the fibers between the plurality of battery built-in parts so that the plurality of battery built-in parts can be bent;
A battery pack, comprising: a cylindrical member inserted into a stitch formed by knitting the fibers of the battery partition portion. 請求項１乃至４のいずれか１項に記載の電池パックであって、
前記繊維は、耐熱性高分子材料であること
を特徴とする電池パック。 The battery pack according to any one of claims 1 to 4,
The battery pack is characterized in that the fiber is a heat-resistant polymer material. 請求項１乃至５のいずれか１項に記載の電池パックであって、
前記繊維は、パラ系アラミド繊維であること
を特徴とする電池パック。 The battery pack according to any one of claims 1 to 5,
The battery pack is characterized in that the fiber is a para-aramid fiber. 請求項１乃至５のいずれか１項に記載の電池パックであって、
前記繊維は、メタ系アラミド繊維であること
を特徴とする電池パック。 The battery pack according to any one of claims 1 to 5,
The battery pack is characterized in that the fiber is a meta-aramid fiber. 請求項１乃至７のいずれか１項に記載の電池パックであって、
前記電池収納袋は、電子機器に前記電池の電力を供給する電源端子をさらに有すること
を特徴とする電池パック。
The battery pack according to any one of claims 1 to 7,
The battery pack further includes a power supply terminal for supplying electric power of the battery to an electronic device.
JP2003360854A 2003-10-21 2003-10-21 Battery pack Withdrawn JP2005129260A (en)

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US20110123851A1 (en) * 2009-11-23 2011-05-26 Samsung Sdi Co., Ltd. Battery pack
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US8815439B2 (en) 2010-04-13 2014-08-26 Samsung Sdi Co., Ltd. Secondary battery pack
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JP2005268138A (en) * 2004-03-19 2005-09-29 Fuji Heavy Ind Ltd Plane alignment structure of power storage body
JP2011096418A (en) * 2009-10-28 2011-05-12 Nec Energy Devices Ltd Battery pack
US20110123851A1 (en) * 2009-11-23 2011-05-26 Samsung Sdi Co., Ltd. Battery pack
US8551639B2 (en) * 2009-11-23 2013-10-08 Samsung Sdi Co., Ltd. Battery pack with waterproof and heat-dissipating case
US8815439B2 (en) 2010-04-13 2014-08-26 Samsung Sdi Co., Ltd. Secondary battery pack
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US9343716B2 (en) 2011-12-29 2016-05-17 Apple Inc. Flexible battery pack
US9812680B2 (en) 2012-08-30 2017-11-07 Apple Inc. Low Z-fold battery seal
WO2014182122A1 (en) * 2013-05-10 2014-11-13 주식회사 오렌지파워 Battery module and battery pack having same
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US9593969B2 (en) 2013-12-27 2017-03-14 Apple Inc. Concealed electrical connectors
US9479007B1 (en) 2014-02-21 2016-10-25 Apple Inc. Induction charging system
US10629886B2 (en) 2014-03-06 2020-04-21 Apple Inc. Battery pack system
US9837835B2 (en) 2014-03-07 2017-12-05 Apple Inc. Electronic device charging system
US10170918B2 (en) 2014-03-07 2019-01-01 Apple Inc. Electronic device wireless charging system
US10523021B2 (en) 2014-03-07 2019-12-31 Apple Inc. Wireless charging control based on electronic device events
US9455582B2 (en) 2014-03-07 2016-09-27 Apple Inc. Electronic device and charging device for electronic device
US10840715B2 (en) 2014-03-07 2020-11-17 Apple Inc. Wireless charging control based on electronic device events
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US9917335B2 (en) 2014-08-28 2018-03-13 Apple Inc. Methods for determining and controlling battery expansion
US10847846B2 (en) 2014-08-28 2020-11-24 Apple Inc. Methods for determining and controlling battery expansion
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