JP3888356B2 - Battery pack - Google Patents

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JP3888356B2
JP3888356B2 JP2004060991A JP2004060991A JP3888356B2 JP 3888356 B2 JP3888356 B2 JP 3888356B2 JP 2004060991 A JP2004060991 A JP 2004060991A JP 2004060991 A JP2004060991 A JP 2004060991A JP 3888356 B2 JP3888356 B2 JP 3888356B2
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battery
cover member
terminal
positive
cover
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JP2005251577A (en
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一平 山内
隆之 佐藤
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Casio Computer Co Ltd
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Casio Computer Co Ltd
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    • Y02E60/12

Description

この発明は電池パックに関する。   The present invention relates to a battery pack.

従来、電池パックは、樹脂成形品からなるカバーケース内に電池を収容し、この電池の正負の電極をそれぞれ、前記カバーケースの一端面に形成された外部接続用の正極端子及び負極端子に接続した構成とされている(特許文献1、2参照)。
特開平5―174809号公報 特開2004―6159号公報
Conventionally, a battery pack accommodates a battery in a cover case made of a resin molded product, and the positive and negative electrodes of the battery are connected to a positive electrode terminal and a negative electrode terminal for external connection formed on one end surface of the cover case, respectively. (See Patent Documents 1 and 2).
JP-A-5-174809 Japanese Patent Laid-Open No. 2004-6159

しかし、樹脂成形品からなるカバーケース内に電池を収容した従来の電池パックは、その外形が大きく、したがって、電子機器内に大きな電池パック実装スペースを確保しなければならなかった。   However, a conventional battery pack in which a battery is accommodated in a cover case made of a resin molded product has a large outer shape. Therefore, a large battery pack mounting space must be secured in the electronic device.

この発明は、外形を小さくし、電子機器内の実装スペースを小さくすることができる電池パックを提供することを目的としたものである。   An object of the present invention is to provide a battery pack capable of reducing the outer shape and the mounting space in an electronic device.

この発明の電池パックは胴部と2つの端面を有し、前記2つの端面の一方または両方に正負の電極が形成された電池と、前記電池の2つの端面と胴部の一側面とのうち、少なくとも前記2つの端面の一方に対応する形状を有する樹脂成形品からなり、前記電池の側部に配置されたカバー部材と、前記電池の前記カバー部材が対応する一方の端面側に設けられ、前記電池の正負の電極にそれぞれ接続された外部接続用の正極端子及び負極端子と、前記電池の胴部の周囲方向に前記カバー部材を覆って巻付けられ、前記電池と前記カバー部材の両方に貼付けられて前記電池と前記カバー部材とを固定する樹脂フィルムとを備え、前記カバー部材の正極端子及び負極端子側の電池端面に対応する部分のうち、前記正極端子及び負極端子の配置部を除く部分が、中央部を前記カバー部材の外面に貼付けられ、両端部を電池の胴部の両面にそれぞれ貼付けられた樹脂テープにより前記電池に固定されていることを特徴とする。 The battery pack according to the present invention includes a battery having a body portion and two end surfaces, and a positive and negative electrode formed on one or both of the two end surfaces, and two end surfaces of the battery and one side surface of the body portion. A cover molded member having a shape corresponding to at least one of the two end surfaces, the cover member disposed on the side of the battery, and the cover member of the battery provided on the corresponding one end surface side, the positive and negative terminals for external connection which are respectively connected to the positive and negative electrodes of the battery, the wound covering the cover member in the circumferential direction of the body portion of the battery, both the cover member and the battery and affixed a resin film for fixing the said cover member and said battery, of the portion corresponding to the battery end faces of the positive terminal and the negative terminal side of said cover member, dividing the arrangement of the positive and negative terminals Portion, affixed to the central portion to the outer surface of the cover member, characterized in that it is fixed to the battery by the respective sticking obtained resin tape both ends on both sides of the body of the battery.

この発明の他の観点における電池パックは、胴部と2つの端面を有し、前記2つの端面の一方に正の電極が形成され、他方の端面に負の電極が形成された電池と、前記電池の2つの端面と胴部の一側面とのうち、少なくとも前記2つの端面の一方に対応する形状を有する樹脂成形品からなり、前記電池の側部に配置されたカバー部材と、前記電池の前記カバー部材が対応する一方の端面側に設けられ、前記電池の正負の電極にそれぞれ接続された外部接続用の正極端子及び負極端子と、前記電池の胴部の周囲方向に前記カバー部材を覆って巻付けられ、前記電池と前記カバー部材の両方に貼付けられて前記電池と前記カバー部材とを固定する樹脂フィルムとを備え、前記電池の一端側に、前記電池の端面の外形内に収まる形状を有し、一方の面に外部接続用の正極端子及び負極端子が設けられるとともに前記電池の正負の電極と前記正極端子及び負極端子とを接続するための配線が形成された配線基板が、前記正極端子及び負極端子が設けられた面を前記電池とは反対側に向けて配置され、前記電池の正負の電極と前記配線基板とがその接続手段により接続され、前記カバー部材の前記電池に対向する内面に配線基板収容部が形成されるとともに外面に前記配線基板の前記正極端子及び負極端子に対応する端子露出用開口が形成され、前記カバー部材が、前記配線基板収容部に前記配線基板を収容し、前記内面の周縁部を前記電池に当接させて配置され、前記配線基板の電池対向面側に、前記配線基板の外形に対応する外形の絶縁性スペーサ枠が配置され、前記配線基板は、前記スペーサ枠に支持されてこのスペーサ枠とともにカバー部材の配線基板収容部に収容され、前記正極端子及び負極端子側の電池端面に形成された一方の電極と配線基板とを接続する手段は、U状に折曲され、一端部を前記一方の電極にスポット溶接された第1の電極板からなり、前記正極端子及び負極端子側とは反対側の電池端面に形成された他方の電極と前記配線基板とを接続する手段は、前記他方の電極にスポット溶接された第2の電極板と、一端を前記第2の電極板に接続され、前記電池の胴部の一側面に沿わせて設けられたリード部材と、このリード部材の他端に設けられた配線基板接続片とからなっており、前記第1の電極板の他端部と前記配線基板接続片それぞれスペーサ枠に支持されて、前記配線基板の電池対向面に形成された電池接続端子に接触されていることを特徴とする A battery pack according to another aspect of the present invention includes a battery having a body portion and two end surfaces, a positive electrode formed on one of the two end surfaces, and a negative electrode formed on the other end surface, A cover member made of a resin molded product having a shape corresponding to at least one of the two end surfaces of the two end surfaces of the battery and one side surface of the body portion, and a cover member disposed on the side of the battery; The cover member is provided on the corresponding one end face side, and covers the cover member in the peripheral direction of the battery body, and the positive and negative terminals for external connection respectively connected to the positive and negative electrodes of the battery. And a resin film that is affixed to both the battery and the cover member to fix the battery and the cover member, and that fits within the outer shape of the end face of the battery on one end side of the battery One of the And a positive electrode terminal and a negative electrode terminal for external connection, and a wiring board on which wiring for connecting the positive and negative electrodes of the battery and the positive electrode terminal and the negative electrode terminal is formed, the positive electrode terminal and the negative electrode terminal are provided. The surface of the cover member is disposed to face the opposite side of the battery, the positive and negative electrodes of the battery and the wiring board are connected by the connecting means, and the wiring board housing portion is formed on the inner surface of the cover member facing the battery. And a terminal exposure opening corresponding to the positive terminal and the negative terminal of the wiring board is formed on the outer surface, the cover member accommodates the wiring board in the wiring board housing portion, and a peripheral edge of the inner surface. An insulating spacer frame having an outer shape corresponding to the outer shape of the wiring board is arranged on the battery facing surface side of the wiring board, and the wiring board is connected to the battery board. Is supported by over support frame is accommodated in the wiring substrate receiving portion of the cover member together with the spacer frame, means for connecting said positive terminal and one of the electrodes formed on the battery end faces of the negative terminal side and the wiring board, U The other electrode formed on the battery end surface opposite to the positive electrode terminal and the negative electrode terminal side and the wiring , comprising a first electrode plate bent at one end and spot welded to the one electrode means for connecting the substrate includes a second electrode plate which is spot welded to the other electrode is connected at one end to said second electrode plate, provided along a one side of the body portion of said battery A lead member and a wiring board connection piece provided at the other end of the lead member, and the other end portion of the first electrode plate and the wiring board connection piece are respectively supported by a spacer frame , Formed on the battery facing surface of the wiring board. Characterized in that it is in contact with the battery connection terminal.

また、この発明の他の観点における電池パックは、胴部と2つの端面を有し、前記2つの端面の一方に正の電極が形成され、他方の端面に負の電極が形成された電池と、前記電池の2つの端面にそれぞれ対応する一対の端面カバー部と前記電池の胴部の一側面に対応する側面カバー部とを有する3方枠状の樹脂成形品からなり、前記電池の側部に配置されたカバー部材と、前記電池の前記カバー部材が対応する一方の端面側に設けられ、前記電池の正負の電極にそれぞれ接続された外部接続用の正極端子及び負極端子と、前記電池の胴部の周囲方向に前記カバー部材を覆って巻付けられ、前記電池と前記カバー部材の両方に貼付けられて前記電池と前記カバー部材とを固定する樹脂フィルムとを備え、前記樹脂フィルムは、前記カバー部材の前記一対の端面カバー部の外周面と前記側面カバー部の外側面とを覆って巻付けられ、前記正極端子及び負極端子側とは反対側の電池端面に形成された他方の電極と配線基板とを接続する手段は、前記他方の電極にスポット溶接された第2の電極板と、一端を前記第2の電極板に接続され、前記電池の胴部の一側面に沿わせて設けられたリード部材と、このリード部材の他端に設けられた配線基板接続片とからなり、前記第2の電極板と前記リード部材の電極板接続部前記カバー部材の正極端子及び前記負極端子側とは反対側の端面カバー部により覆われ、前記リード部材の電池胴部の一側面に沿う部分が前記カバー部材の側面カバー部により覆われていることを特徴とする。 According to another aspect of the present invention, there is provided a battery pack having a body and two end faces, a positive electrode formed on one of the two end faces, and a negative electrode formed on the other end face. The battery comprises a three-sided frame-shaped resin molded product having a pair of end surface cover portions respectively corresponding to two end surfaces of the battery and a side surface cover portion corresponding to one side surface of the body portion of the battery. A positive electrode terminal and a negative electrode terminal for external connection provided on one end face side corresponding to the cover member disposed on the battery, and connected to the positive and negative electrodes of the battery, respectively, A resin film that is wrapped around the cover member in a circumferential direction of the body portion, and is affixed to both the battery and the cover member to fix the battery and the cover member; Cover member The other electrode formed on the battery end surface opposite to the positive electrode terminal and the negative electrode terminal side, and a wiring board, wrapped around the outer peripheral surface of the pair of end surface cover portions and the outer surface of the side surface cover portion Means for connecting the second electrode plate spot-welded to the other electrode, and a lead provided at one end connected to the second electrode plate and along one side surface of the battery body. and the member consists of a wiring board connecting piece provided at the other end of the lead member, the positive terminal and the negative terminal side of the second electrode plate and the lead member of the electrode plate connecting portion said cover member We covered by the end surface cover portion opposite to the portion along the one side surface of the battery body portion of the lead member is characterized in that it cracks covered by side covers portions of the cover member.

さらに、この発明の他の観点における電池パックは、胴部と2つの端面を有し、前記2つの端面の一方または両方に正負の電極が形成された電池と、前記電池の2つの端面にそれぞれ対応する一対の端面カバー部と前記電池の胴部の一側面に対応する側面カバー部とを有する3方枠状の樹脂成形品からなり、前記電池の側部に配置されたカバー部材と、前記電池の前記カバー部材が対応する一方の端面側に設けられ、前記電池の正負の電極にそれぞれ接続された外部接続用の正極端子及び負極端子と、前記電池の胴部の周囲方向に前記カバー部材を覆って巻付けられ、前記電池と前記カバー部材の両方に貼付けられて前記電池と前記カバー部材とを固定する樹脂フィルムとを備え、前記樹脂フィルムは、前記一対の端面カバー部の外周面と前記側面カバー部の外側面とを覆って巻付けられ、前記カバー部材の前記正極端子及び負極端子側の端面カバー部の前記正極端子及び負極端子の配置部を除く部分と、前記正極端子及び負極端子側とは反対側の端面カバー部とそれぞれ、中央部を前記カバー部の外面に貼付けられ、両端部を電池の胴部の両面にそれぞれ貼付けられた樹脂テープにより前記電池に固定されていることを特徴とする。 Furthermore, a battery pack according to another aspect of the present invention has a body and two end faces, and a battery in which positive or negative electrodes are formed on one or both of the two end faces, and two end faces of the battery, respectively. A cover member disposed on a side of the battery, comprising a three-sided frame-shaped resin molded product having a corresponding pair of end surface cover parts and a side cover part corresponding to one side surface of the battery body; The cover member of the battery is provided on one corresponding end face side, and the positive electrode terminal and the negative electrode terminal for external connection respectively connected to the positive and negative electrodes of the battery, and the cover member in the peripheral direction of the body of the battery And a resin film that is affixed to both the battery and the cover member to fix the battery and the cover member, and the resin film includes an outer peripheral surface of the pair of end surface cover portions. in front Wound over the outer surface of the side cover portion, and the positive terminal and the portion except for the arrangement of the positive and negative terminals of the end surface cover portion of the negative terminal side of the cover member, the positive and negative terminals respectively the end surface cover portion opposite to the side is provided a central portion pasted to the outer surface of the cover portion, it is fixed to the battery by the both end portions of the battery of the torso respectively affixed Ke obtained resin tape on both sides of It is characterized by.

この発明の電池パックは、胴部と2つの端面を有し、前記2つの端面の一方または両方に正負の電極が形成された電池の側部に、前記電池の2つの端面と胴部の一側面とのうち、少なくとも前記2つの端面の一方に対応する形状を有する樹脂成形品からなるカバー部材を配置して、前記電池の前記カバー部材が対応する一方の端面側に前記電池の正負の電極にそれぞれ接続された外部接続用の正極端子及び負極端子を設け、前記電池の胴部の周囲に前記カバー部材を覆って樹脂フィルムを巻付けて、この樹脂フィルムを前記電池とカバー部材の両方に貼付けることにより前記電池と前記カバー部材とを固定したものであるため、外形を小さくし、電子機器内の実装スペースを小さくすることができる。   The battery pack of the present invention has a body and two end faces, and one end of the battery and one of the two end faces are provided with positive and negative electrodes. A cover member made of a resin molded product having a shape corresponding to at least one of the two end faces among the side faces, and the positive and negative electrodes of the battery on one end face side corresponding to the cover member of the battery A positive electrode terminal and a negative electrode terminal for external connection connected to each other, and a resin film is wound around the body of the battery so as to cover the cover member, and the resin film is applied to both the battery and the cover member. Since the battery and the cover member are fixed by pasting, the outer shape can be reduced and the mounting space in the electronic device can be reduced.

しかも、この発明の電池パックは、前記カバー部材の前記正極端子及び負極端子側の電池端面に対応する部分のうち、前記正極端子及び負極端子の配置部を除く部分を、中央部を前記カバー部材の外面に貼付けられ、両端部を電池の胴部の両面にそれぞれ貼付けられた樹脂テープにより前記電池に固定しているため、前記電池と前記カバー部材とを十分に高い強度で固定することができる。 Moreover, in the battery pack of the present invention, a portion of the cover member corresponding to the battery end surface on the positive electrode terminal and negative electrode terminal side excluding the arrangement portion of the positive electrode terminal and the negative electrode terminal is arranged at the center portion with the cover member. The battery and the cover member can be fixed with sufficiently high strength because the both ends are fixed to the battery by the resin tapes respectively bonded to both surfaces of the battery body. .

この発明の他の観点における電池パックは、胴部と2つの端面を有し、前記2つの端面の一方に正の電極が形成され、他方の端面に負の電極が形成された電池と、前記電池の2つの端面と胴部の一側面とのうち、少なくとも前記2つの端面の一方に対応する形状を有する樹脂成形品からなり、前記電池の側部に配置されたカバー部材と、前記電池の前記カバー部材が対応する一方の端面側に設けられ、前記電池の正負の電極にそれぞれ接続された外部接続用の正極端子及び負極端子と、前記電池の胴部の周囲方向に前記カバー部材を覆って巻付けられ、前記電池と前記カバー部材の両方に貼付けられて前記電池と前記カバー部材とを固定する樹脂フィルムとを備え、前記電池の一端側に、前記電池の端面の外形内に収まる形状を有し、一方の面に外部接続用の正極端子及び負極端子が設けられるとともに前記電池の正負の電極と前記正極端子及び負極端子とを接続するための配線が形成された配線基板を、前記正極端子及び負極端子が設けられた面を前記電池とは反対側に向けて配置し、前記電池の正負の電極と前記配線基板とをその接続手段により接続し、前記カバー部材の前記電池に対向する内面に配線基板収容部を形成するとともに外面に前記配線基板の前記正極端子及び負極端子に対応する端子露出用開口を形成し、前記カバー部材を、前記配線基板収容部に前記配線基板を収容し、前記内面の周縁部を前記電池に当接させて配置し、前記配線基板の電池対向面側に、前記配線基板の外形に対応する外形の絶縁性スペーサ枠を配置し、前記配線基板を、前記スペーサ枠に支持させてこのスペーサ枠とともに前記カバー部材の配線基板収容部に収容し、前記正極端子及び負極端子側の電池端面に形成された一方の電極と前記配線基板とを接続する手段を、U状に折曲され、一端部を前記一方の電極にスポット溶接された第1の電極板により構成し、前記正極端子及び負極端子側とは反対側の電池端面に形成された他方の電極と前記配線基板とを接続する手段を、前記他方の電極にスポット溶接された第2の電極板と、一端を前記第2の電極板に接続され、前記電池の胴部の一側面に沿わせて設けられたリード部材と、このリード部材の他端に設けられた配線基板接続片とにより構成し、前記第1の電極板の他端部と前記配線基板接続片をそれぞれ前記スペーサ枠に支持させて、前記配線基板の電池対向面に形成された電池接続端子に接触させているため、外形を小さくし、電子機器内の実装スペースを小さくするとともに、電池パックの組立てを簡単にし、製造コストを低減することができる。 A battery pack according to another aspect of the present invention includes a battery having a body portion and two end surfaces, a positive electrode formed on one of the two end surfaces, and a negative electrode formed on the other end surface, A cover member made of a resin molded product having a shape corresponding to at least one of the two end surfaces of the two end surfaces of the battery and one side surface of the body portion, and a cover member disposed on the side of the battery; The cover member is provided on the corresponding one end face side, and covers the cover member in the peripheral direction of the battery body, and the positive and negative terminals for external connection respectively connected to the positive and negative electrodes of the battery. And a resin film that is affixed to both the battery and the cover member to fix the battery and the cover member, and that fits within the outer shape of the end face of the battery on one end side of the battery One of the A positive electrode terminal and a negative electrode terminal for external connection and a wiring board on which wiring for connecting the positive and negative electrodes of the battery and the positive electrode terminal and the negative electrode terminal is formed. The surface of the cover member is arranged facing away from the battery, the positive and negative electrodes of the battery and the wiring board are connected by the connecting means, and the wiring board housing portion is formed on the inner surface of the cover member facing the battery. A terminal exposure opening corresponding to the positive terminal and the negative terminal of the wiring board is formed on the outer surface, the cover member is housed in the wiring board housing portion, and the peripheral portion of the inner surface is formed. Is placed in contact with the battery, an insulating spacer frame having an outer shape corresponding to the outer shape of the wiring board is arranged on the battery facing surface side of the wiring board, and the wiring board is supported by the spacer frame. By accommodating the wiring substrate receiving portion of the cover member together with the spacer frame, means for connecting the positive terminal and one of the electrodes formed on the battery end faces of the negative terminal side and the wiring board, folding the U-shaped A first electrode plate that is bent and has one end spot-welded to the one electrode, the other electrode formed on the battery end surface opposite to the positive electrode terminal and the negative electrode terminal side, and the wiring board A second electrode plate spot-welded to the other electrode, and a lead having one end connected to the second electrode plate and provided along one side surface of the body of the battery A wiring board connecting piece provided at the other end of the lead member, and the other end of the first electrode plate and the wiring board connecting piece are respectively supported by the spacer frame, and the wiring Formed on the battery facing surface of the substrate Since it is in contact with the battery connection terminal , the outer shape can be reduced, the mounting space in the electronic device can be reduced, the assembly of the battery pack can be simplified, and the manufacturing cost can be reduced.

また、この発明の他の観点における電池パックは、胴部と2つの端面を有し、前記2つの端面の一方に正の電極が形成され、他方の端面に負の電極が形成された電池と、前記電池の2つの端面にそれぞれ対応する一対の端面カバー部と前記電池の胴部の一側面に対応する側面カバー部とを有する3方枠状の樹脂成形品からなり、前記電池の側部に配置されたカバー部材と、前記電池の前記カバー部材が対応する一方の端面側に設けられ、前記電池の正負の電極にそれぞれ接続された外部接続用の正極端子及び負極端子と、前記電池の胴部の周囲方向に前記カバー部材を覆って巻付けられ、前記電池と前記カバー部材の両方に貼付けられて前記電池と前記カバー部材とを固定する樹脂フィルムとを備え、前記樹脂フィルムを、前記カバー部材の前記一対の端面カバー部の外周面と前記側面カバー部の外側面とを覆って巻付け、前記正極端子及び負極端子側とは反対側の電池端面に形成された他方の電極と配線基板とを接続する手段を、前記他方の電極にスポット溶接された第2の電極板と、一端を前記第2の電極板に接続され、前記電池の胴部の一側面に沿わせて設けられたリード部材と、このリード部材の他端に設けられた配線基板接続片とにより構成し、前記第2の電極板と前記リード部材の電極板接続部を前記カバー部材の正極端子及び前記負極端子側とは反対側の端面カバー部により覆い、前記リード部材の電池胴部の一側面に沿う部分が前記カバー部材の側面カバー部により覆っているため、外形を小さくし、電子機器内の実装スペースを小さくするとともに、前記第2の電極板と前記リード部材を前記カバー部材により保護することができる。 According to another aspect of the present invention, there is provided a battery pack having a body and two end faces, a positive electrode formed on one of the two end faces, and a negative electrode formed on the other end face. The battery comprises a three-sided frame-shaped resin molded product having a pair of end surface cover portions respectively corresponding to two end surfaces of the battery and a side surface cover portion corresponding to one side surface of the body portion of the battery. A positive electrode terminal and a negative electrode terminal for external connection provided on one end face side corresponding to the cover member disposed on the battery, and connected to the positive and negative electrodes of the battery, respectively, A resin film that is wrapped around the cover member in a circumferential direction of the body portion, and is affixed to both the battery and the cover member to fix the battery and the cover member, and the resin film, Cover member Wrapping the outer peripheral surface of the pair of end surface cover portions and the outer surface of the side surface cover portion, the other electrode formed on the battery end surface opposite to the positive electrode terminal and the negative electrode terminal side and the wiring board A second electrode plate spot-welded to the other electrode, and a lead member having one end connected to the second electrode plate and provided along one side of the battery body And a wiring board connecting piece provided at the other end of the lead member, and the second electrode plate and the electrode plate connecting portion of the lead member are defined as the positive electrode terminal and the negative electrode terminal side of the cover member. Covered by the opposite end face cover part, and the part along the one side surface of the battery body part of the lead member is covered by the side cover part of the cover member, so that the outer shape is reduced and the mounting space in the electronic device is reduced. together with the second The electrode plate and the lead member can be protected by the cover member.

さらに、この発明の他の観点における電池パックは、胴部と2つの端面を有し、前記2つの端面の一方または両方に正負の電極が形成された電池と、前記電池の2つの端面にそれぞれ対応する一対の端面カバー部と前記電池の胴部の一側面に対応する側面カバー部とを有する3方枠状の樹脂成形品からなり、前記電池の側部に配置されたカバー部材と、前記電池の前記カバー部材が対応する一方の端面側に設けられ、前記電池の正負の電極にそれぞれ接続された外部接続用の正極端子及び負極端子と、前記電池の胴部の周囲方向に前記カバー部材を覆って巻付けられ、前記電池と前記カバー部材の両方に貼付けられて前記電池と前記カバー部材とを固定する樹脂フィルムとを備え、前記樹脂フィルムを、前記一対の端面カバー部の外周面と前記側面カバー部の外側面とを覆って巻付け、前記カバー部材の前記正極端子及び負極端子側の端面カバー部の前記正極端子及び負極端子の配置部を除く部分と、前記正極端子及び負極端子側とは反対側の端面カバー部とをそれぞれ、中央部を前記カバー部の外面に貼付け、両端部を電池の胴部の両面にそれぞれ貼付けた樹脂テープにより前記電池に固定しているため、外形を小さくし、電子機器内の実装スペースを小さくするとともに、前記電池と前記カバー部材とを充分に高い強度で固定することができる。 Furthermore, a battery pack according to another aspect of the present invention has a body and two end faces, and a battery in which positive or negative electrodes are formed on one or both of the two end faces, and two end faces of the battery, respectively. A cover member disposed on a side of the battery, comprising a three-sided frame-shaped resin molded product having a corresponding pair of end surface cover parts and a side cover part corresponding to one side surface of the battery body; The cover member of the battery is provided on one corresponding end face side, and the positive electrode terminal and the negative electrode terminal for external connection respectively connected to the positive and negative electrodes of the battery, and the cover member in the peripheral direction of the body of the battery And a resin film that is affixed to both the battery and the cover member to fix the battery and the cover member, and the resin film is attached to an outer peripheral surface of the pair of end surface cover portions. in front Wound covering an outer surface of the side cover portion, the said positive terminal and a portion except for the arrangement of the negative terminal of the end surface cover portion of the positive terminal and the negative terminal side, the positive terminal and negative terminal side of said cover member And the end face cover part on the opposite side to the battery, and the center part is affixed to the outer surface of the cover part, and both ends are fixed to the battery by resin tapes affixed to both sides of the battery body part, respectively. While reducing the mounting space in the electronic device, the battery and the cover member can be fixed with sufficiently high strength.

図1〜図6はこの発明の第1の実施例を示しており、図1は電池パックの分解斜視図、図2及び図3はそれぞれ前記電池パックの組立て途中の状態の斜視図、図4は前記電池パックの組立て完了状態の斜視図、図5及び図6は図4のV―V線及びVI―VI線に沿う拡大断面図である。   1 to 6 show a first embodiment of the present invention, FIG. 1 is an exploded perspective view of a battery pack, FIGS. 2 and 3 are perspective views of the battery pack being assembled, and FIG. FIG. 5 and FIG. 6 are enlarged sectional views taken along lines VV and VI-VI in FIG.

この実施例の電池パックは、胴部2と2つの端面3a,3bを有し、前記2つの端面3a,3bの一方3aに正の電極(以下、正極という)4aが形成され、他方の端面3bに負の電極(以下、負極という)4bが形成された電池1と、この電池1の一端側に配置された配線基板5と、前記電池1の正負の電極4a,4bをそれぞれ前記配線基板5に接続する電池接続手段と、3方枠状のカバー部材15と、前記電池1とカバー部材15とを固定するための樹脂フィルム26及び樹脂テープ27,28とにより構成されている。   The battery pack of this embodiment has a body portion 2 and two end surfaces 3a and 3b. A positive electrode (hereinafter referred to as positive electrode) 4a is formed on one of the two end surfaces 3a and 3b, and the other end surface. A battery 1 in which a negative electrode (hereinafter referred to as a negative electrode) 4b is formed on 3b, a wiring board 5 disposed on one end of the battery 1, and positive and negative electrodes 4a and 4b of the battery 1 are respectively connected to the wiring board. 5, a battery connecting means for connecting to the battery 5, a three-sided frame-shaped cover member 15, and a resin film 26 and resin tapes 27 and 28 for fixing the battery 1 and the cover member 15.

前記電池1は、その内部構造は図示しないが、内面に耐食処理が施された金属ケース内に、交互に積層された正極側及び負極側電極体と、これらの電極体の間隔を保持するセパレータと、非水電解液とを収容したリチウムイオン二次電池等の非水電解液二次電池であり、その正極4aと負極4bは、前記金属ケースの一端面と他端面とに前記金属ケースと絶縁して形成されている。   Although the internal structure of the battery 1 is not shown, a positive electrode side electrode body and a negative electrode side electrode body that are alternately stacked in a metal case whose inner surface is subjected to corrosion resistance treatment, and a separator that maintains a space between these electrode bodies And a non-aqueous electrolyte secondary battery such as a lithium ion secondary battery containing the non-aqueous electrolyte, the positive electrode 4a and the negative electrode 4b being connected to the metal case on one end surface and the other end surface of the metal case. It is formed with insulation.

そして、この実施例では、胴部2の両面を平坦面に形成し、前記胴部2の両側面をそれぞ半円形の曲面に形成した平面形状が矩形状の平型電池を用いている。 Then, in this embodiment, both sides of the body portion 2 is formed on the flat surface, both side surfaces of the body portion 2 is flat plane shape formed, respectively it semicircular curved surface with a rectangular flat battery ing.

また、前記配線基板5は、前記電池1の端面3a.3bの外形内に収まる形状、例えば電池端面3a.3bの高さ(平型電池1の厚さ)及び長さ(平型電池1の幅)よりも小さい幅及び長さを有する横長の矩形状板からなっており、その一方の面の中央部から一側側の部分に、外部接続用の正極端子6a及び負極端子6bとサーミスタ端子7とが設けられ、他方の面に、電池温度測定用のサーミスタ素子(図示せず)が設けられるとともに、前記電池1の正負の電極4a,4bと前記正極端子6a及び負極端子6bとを接続するための電池接続配線と、前記サーミスタ素子と前記サーミスタ端子7とを接続するサーミスタ配線(いずれも図示せず)が形成されている。   In addition, the wiring board 5 is connected to the end face 3a. 3b, for example, battery end faces 3a. It consists of a horizontally long rectangular plate having a width and length smaller than the height (thickness of the flat battery 1) and the length (width of the flat battery 1) of 3b, and the central portion of one surface thereof And a thermistor terminal 7 for external connection, and a thermistor element (not shown) for measuring the battery temperature is provided on the other surface. Battery connection wiring for connecting the positive and negative electrodes 4a, 4b of the battery 1 to the positive terminal 6a and negative terminal 6b, and the thermistor wiring for connecting the thermistor element and the thermistor terminal 7 (both not shown) ) Is formed.

なお、前記配線基板5の他方の面には、その両端側にそれぞれ、正極用及び負極用の電池接続端子8(図5参照)が設けられており、前記電池接続配線は、前記正極用及び負極用の電池接続端子8と前記配線基板5の一方の面に設けられた正極端子6a及び負極端子6bとを接続している。   Note that positive and negative battery connection terminals 8 (see FIG. 5) are provided on both ends of the other surface of the wiring board 5, respectively. The battery connection terminal 8 for the negative electrode and the positive electrode terminal 6a and the negative electrode terminal 6b provided on one surface of the wiring board 5 are connected.

そして、前記配線基板5は、前記電池1の一端側、例えば正極4aが形成された端面側に、前記正極端子6a及び負極端子6bとサーミスタ端子7が設けられた面を前記電池1とは反対側に向けて配置されている。   The wiring board 5 is opposite to the battery 1 with the surface on which the positive terminal 6a, the negative terminal 6b, and the thermistor terminal 7 are provided on one end side of the battery 1, for example, the end face side on which the positive electrode 4a is formed. It is arranged toward the side.

また、前記電池1の正負の電極4a,4bをそれぞれ前記配線基板5に接続する電池接続手段のうち、前記正極端子6a及び負極端子6bとサーミスタ端子7側、つまり前記配線基板5の配置側(以下、配線基板側という)の電池端面3aに形成された正極4aと前記配線基板5とを接続する手段(以下、正極用電池接続手段という)は、U状に折曲され、一端部を前記正極4aにスポット溶接された第1の電極板(以下、正極用電極板という)9からなっており、前記配線基板側とは反対側の電池端面3bに形成された負極4bと前記配線基板5とを接続する手段(以下、負極用電池接続手段という)は、前記負極4bにスポット溶接された第2の電極板(以下、負極用電極板という)10と、一端を前記負極用電極板10に接続され、前記電池1の胴部2の一側面に沿わせて設けられたリード部材11と、このリード部材11の他端に設けられた配線基板接続片12とからなっている。   Of the battery connection means for connecting the positive and negative electrodes 4a, 4b of the battery 1 to the wiring board 5, respectively, the positive terminal 6a, the negative terminal 6b and the thermistor terminal 7 side, that is, the arrangement side of the wiring board 5 ( The means for connecting the positive electrode 4a formed on the battery end surface 3a (hereinafter referred to as the wiring board side) and the wiring board 5 (hereinafter referred to as the positive electrode battery connecting means) is bent in a U shape, and one end thereof is It consists of a first electrode plate (hereinafter referred to as a positive electrode plate) 9 spot-welded to the positive electrode 4a, the negative electrode 4b formed on the battery end surface 3b opposite to the wiring substrate side, and the wiring substrate 5 Are connected to the negative electrode 4b by spot welding (hereinafter referred to as negative electrode plate) 10 and one end of the negative electrode plate 10 is connected to the negative electrode 4b. Connected to the previous A lead member 11 that is provided along a one side of the body portion 2 of the battery 1, and a wiring board connection piece 12 which is provided on the other end of the lead member 11.

なお、この実施例では、前記リード部材11に、帯状の金属板からなり、その両端部を屈り曲げ加工して電極板接続11aと前記配線基板接続片12とを形成したものを用い、前記電極板接続11aを前記負極用電極板10にスポット溶接により接続している。 In this embodiment, the lead member 11 is made of a strip-shaped metal plate, and both end portions thereof are bent and bent to form the electrode plate connection piece 11a and the wiring board connection piece 12, The electrode plate connection piece 11a is connected to the negative electrode plate 10 by spot welding.

そして、この実施例では、前記電池1の配線基板側とは反対側の電池端面3b及び胴部2の一側面に、前記電池端面3bの略全体と前記胴部2の一側面の前記リード部材11に対応する部分とを覆う形状に形成され、前記電池端面3bを覆う部分に前記負極4bに対応する開口14を設けた絶縁紙13を貼付け、その外側に前記負極用電極板10とリード部材11とを配置して、前記負極用電極板10を、前記絶縁紙13の開口14内において電池1の負極4bにスポット溶接している。   In this embodiment, the battery end surface 3b opposite to the wiring board side of the battery 1 and one side surface of the body portion 2 are arranged on the entire surface of the battery end surface 3b and the lead member on one side surface of the body portion 2. 11 is formed to cover a portion corresponding to the battery end surface 3b, and an insulating paper 13 provided with an opening 14 corresponding to the negative electrode 4b is attached to the portion covering the battery end surface 3b. 11 is spot-welded to the negative electrode 4 b of the battery 1 in the opening 14 of the insulating paper 13.

一方、前記カバー部材15は、ポリエチレン、ポリプロピレン等の衝撃吸収性を有する樹脂からなる成形品であり、前記電池1の2つの端面3a,3bにそれぞれ対応する一対の端面カバー部15a,15bと、前記電池1の胴部2の一側面に対応する側面カバー部15cとを有する3方枠状部材からなっている。   On the other hand, the cover member 15 is a molded product made of a resin having impact absorption properties such as polyethylene and polypropylene, and a pair of end surface cover portions 15a and 15b respectively corresponding to the two end surfaces 3a and 3b of the battery 1, The battery 1 is made of a three-sided frame member having a side cover portion 15c corresponding to one side surface of the body portion 2 of the battery 1.

このカバー部材15の一対の端面カバー部15a,15bはそれぞれ、前記側面カバー部15c側の端部を除いて前記電池端面3a,3bの外形と略同じ形状、つまり、平型電池1の厚さと略同じ高さの帯板状部の一端を半円形に形成した形状に形成されており、これらの端面カバー部15a,15bの側面カバー部15c側の端部と前記側面カバー部15cは、端面カバー部15a,15bの高さ(平型電池1の厚さ)と略同じ高さの帯板状に形成されている。   The pair of end surface cover portions 15a and 15b of the cover member 15 has substantially the same shape as the outer shape of the battery end surfaces 3a and 3b except for the end portion on the side surface cover portion 15c side, that is, the thickness of the flat battery 1 The end portions of the strip plate portions having substantially the same height are formed in a semicircular shape, and the end portions of these end surface cover portions 15a and 15b on the side surface cover portion 15c side and the side surface cover portion 15c are end surfaces. The cover portions 15a and 15b are formed in a band plate shape having a height substantially the same as the height of the flat battery 1 (thickness of the flat battery 1).

このカバー部材15の各カバー部15a,15b,15cのうち、配線基板側の端面カバー部15aと側面カバー部15cは、前記配線基板側とは反対側の端面カバー部15bよりも厚く形成されている。   Of the cover portions 15a, 15b, and 15c of the cover member 15, the end face cover portion 15a and the side cover portion 15c on the wiring board side are formed to be thicker than the end face cover portion 15b on the side opposite to the wiring board side. Yes.

そして、前記配線基板側の端面カバー部15aには、その電池1に対向する内面に、その周縁部を除く全域にわたって配線基板収容部16が形成されるとともに、外面に、前記配線基板5の前記正極端子6a及び負極端子6bとサーミスタ端子7とにそれぞれ対応する3つの端子露出用開口17が形成されており、また、反対側の端面カバー部15bの電池1に対向する内面には、前記負極用電極板10の配置部に対応させて電極板収容部18が形成され、前記側面カバー部15cの電池1に対向する内面には、その周縁部を除く全域にわたって前記負極用電池接続手段のリード部材11を収容するリード収容部19が形成されている。   The end face cover 15a on the side of the wiring board is formed with a wiring board housing part 16 over the entire area excluding its peripheral edge on the inner surface facing the battery 1, and on the outer surface of the wiring board 5 Three terminal exposure openings 17 respectively corresponding to the positive electrode terminal 6a and the negative electrode terminal 6b and the thermistor terminal 7 are formed, and on the inner surface of the opposite end face cover portion 15b facing the battery 1, the negative electrode An electrode plate accommodating portion 18 is formed corresponding to the arrangement portion of the electrode plate 10 for the electrode, and the lead of the battery connecting means for the negative electrode is formed on the inner surface of the side cover portion 15c facing the battery 1 over the entire area excluding the peripheral portion. A lead accommodating portion 19 for accommodating the member 11 is formed.

なお、カバー部材15の各カバー部15a,15b,15cはそれぞれ、その外面からの押圧力により凹み変形しない範囲でできるだけ薄い肉厚に形成されており、配線基板側の端面カバー部15aの配線基板収容部16の内奥面と、反対側の端面カバー部15bの内面の電極板収容部18を除く部分と、前記側面カバー部15cのリード収容部19の内奥面にはそれぞれ複数の補強リブ20が一体に形成されている。   Each of the cover portions 15a, 15b, and 15c of the cover member 15 is formed as thin as possible within a range in which the cover portion 15 is not depressed and deformed by the pressing force from the outer surface thereof, and the wiring board of the end face cover portion 15a on the wiring board side is formed. A plurality of reinforcing ribs are provided on the inner back surface of the housing portion 16, the inner surface of the opposite end surface cover portion 15b except the electrode plate housing portion 18, and the inner back surface of the lead housing portion 19 of the side cover portion 15c. 20 is integrally formed.

また、この実施例の電池パックは、前記配線基板5の電池対向面側に配置された、前記配線基板5の外形に対応する外形の絶縁性スペーサ枠21をさらに備えている。   In addition, the battery pack of this embodiment further includes an insulating spacer frame 21 having an outer shape corresponding to the outer shape of the wiring board 5, which is disposed on the battery facing surface side of the wiring board 5.

このスペーサ枠21は、衝撃吸収性を有する樹脂(ポリエチレン、ポリプロピレン等)からなる成形品であり、その一端部に、前記正極用電極板9のU状折曲部を嵌合させる電極板支持部22が形成され、他端部に、前記負極用電池接続手段のリード部材11に設けられた配線基板接続片12を支持する接続片支持部23が形成されている。   The spacer frame 21 is a molded product made of a resin (polyethylene, polypropylene, etc.) having a shock absorption property, and an electrode plate support portion for fitting a U-shaped bent portion of the positive electrode plate 9 at one end thereof. 22 is formed, and at the other end, a connection piece support portion 23 for supporting the wiring board connection piece 12 provided on the lead member 11 of the negative electrode battery connection means is formed.

また、前記スペーサ枠21と配線基板5の一方、例えばスペーサ枠21には、その配線基板5に対向する面に複数のボス部24が突設され、他方、つまり配線基板5には、前記複数のボス部24にそれぞれ嵌合する複数のボス嵌合孔25が設けられており、前記配線基板5は、前記複数のボス部24に前記複数のボス嵌合孔25を嵌合させることにより、前記スペーサ枠21に位置決めして支持されている。   Further, one of the spacer frame 21 and the wiring board 5, for example, the spacer frame 21, has a plurality of boss portions 24 projecting from the surface facing the wiring board 5, and the other, that is, the wiring board 5 has the plurality of bosses 24. A plurality of boss fitting holes 25 that are respectively fitted to the boss portions 24 are provided, and the wiring board 5 is formed by fitting the plurality of boss fitting holes 25 to the plurality of boss portions 24. The spacer frame 21 is positioned and supported.

そして、前記カバー部材15は、その配線基板側の端面カバー部15aの内面に形成された配線基板収容部16に前記配線基板5を前記スペーサ枠21とともに収容して、前記電池1の外側にその2つの端面3a,3b及び胴部2の一側面を囲むように嵌装され、前記配線基板側の端面カバー部15aの内面の周縁部を配線基板側の電池端面3aに当接させ、反対側の端面カバー部15bの内面の周縁部を反対側の電池端面3bに当接させ、前記側面カバー部15cの内面の周縁部を前記電池1の胴部2の一側面に直接または前記絶縁紙13を介して当接させて配置されており、前記正極用電極板9と前記負極用電池接続手段のリード部材11に設けられた配線基板接続片12は、前記スペーサ枠21の電極板支持部22と接続片支持部23にそれぞれ支持されて、前記配線基板5の電池対向面に形成された正極用及び負極用の電池接続端子8にそれぞれ接触されている。   The cover member 15 accommodates the wiring substrate 5 together with the spacer frame 21 in the wiring substrate accommodating portion 16 formed on the inner surface of the end surface cover portion 15a on the wiring substrate side, and the outside of the battery 1 It is fitted so as to surround the two end surfaces 3a, 3b and one side surface of the body portion 2, the peripheral edge of the inner surface of the end surface cover portion 15a on the wiring board side is brought into contact with the battery end surface 3a on the wiring substrate side, and the opposite side The peripheral edge portion of the inner surface of the end surface cover portion 15b is brought into contact with the opposite battery end surface 3b, and the peripheral edge portion of the inner surface of the side surface cover portion 15c is directly on one side surface of the body portion 2 of the battery 1 or the insulating paper 13. The wiring board connecting piece 12 provided on the positive electrode plate 9 and the lead member 11 of the negative battery connecting means is connected to the electrode plate support portion 22 of the spacer frame 21. And connecting piece support 23 Are supported respectively, they are contacted respectively to the battery connection terminal 8 for the positive electrode and the negative electrode formed on the battery facing surface of the wiring board 5.

また、前記電池1とカバー部材15とを固定するための樹脂フィルム26及び樹脂テープ27,28はそれぞれ、PET(ポリエリレンテレフタレート)等の非伸縮性樹脂からなっている。   The resin film 26 and the resin tapes 27 and 28 for fixing the battery 1 and the cover member 15 are each made of a non-stretchable resin such as PET (polyethylene terephthalate).

前記樹脂フィルム26は、前記カバー部材15の配線基板側の端面カバー部15aと反対側の端面カバー部15bの両方の外縁間の距離と略同じ幅と、前記電池1の胴部2及びその一側面に当接された前記側面カバー部15cの外囲長よりも前記反対側の端面カバー部15bの高さ(平型電池1の厚さ)分だけ大きい長さを有する矩形状フィルムであり、図1に示したように、予め、その長さ方向の中央部を電池胴部2の側面形状に対応する半円形曲面に曲げ加工され、両端の前記側面カバー部15cに対応する部分を電池胴部2の両面(平坦面)に対応する部分に対して略直角に曲げ加工されるとともに、その内面全体に粘着剤(図示せず)を塗布されている。   The resin film 26 has a width substantially the same as the distance between the outer edges of both the end surface cover portion 15a on the wiring board side of the cover member 15 and the end surface cover portion 15b on the opposite side, and the body portion 2 of the battery 1 and its one. A rectangular film having a length larger by the height of the opposite end face cover portion 15b (thickness of the flat battery 1) than the surrounding length of the side cover portion 15c in contact with the side surface; As shown in FIG. 1, the central portion in the length direction is bent in advance into a semicircular curved surface corresponding to the side shape of the battery body 2, and the portions corresponding to the side cover portions 15 c at both ends are formed in the battery body. The portion 2 is bent at a substantially right angle with respect to portions corresponding to both surfaces (flat surfaces), and an adhesive (not shown) is applied to the entire inner surface.

一方、前記樹脂テープ27,28のうち、一方の樹脂テープ27は、前記正極端子6a及び負極端子6bの配置部、つまり前記カバー部材15の配線基板側の端面カバー部15aの外面の端子露出用開口17の形成部を除く部分に対応するカバー外面貼付け部の両側にそれぞれ張出し部を形成した形状のフィルムであり、図1に示したように、予め、前記張出し部を前記カバー外面貼付け部に対して略直角に曲げ加工されるとともに、その内面全体に粘着剤(図示せず)を塗布されている。   On the other hand, of the resin tapes 27 and 28, one resin tape 27 is used for exposing terminals on the arrangement portion of the positive electrode terminal 6a and the negative electrode terminal 6b, that is, the outer surface of the end surface cover portion 15a on the wiring board side of the cover member 15. It is a film having a shape in which overhang portions are formed on both sides of the cover outer surface pasting portion corresponding to the portion excluding the portion where the opening 17 is formed, and as shown in FIG. 1, the overhang portion is previously attached to the cover outer surface pasting portion. On the other hand, it is bent at a substantially right angle, and an adhesive (not shown) is applied to the entire inner surface.

また、他方の樹脂テープ28は、前記カバー部材15の反対側の端面カバー部15bの外面の半円形端部を除く部分の全体に対応するカバー外面貼付け部の両側にそれぞれ張出し部を形成した形状のフィルムであり、図1に示したように、予め、前記張出し部を前記カバー外面貼付け部に対して略直角に曲げ加工されるとともに、その内面全体に粘着剤(図示せず)を塗布されている。   Further, the other resin tape 28 has a shape in which overhang portions are formed on both sides of the cover outer surface pasting portion corresponding to the entire portion excluding the semicircular end portion of the outer surface of the end surface cover portion 15b on the opposite side of the cover member 15, respectively. As shown in FIG. 1, the overhanging portion is previously bent at a substantially right angle with respect to the cover outer surface pasting portion, and an adhesive (not shown) is applied to the entire inner surface. ing.

そして、前記一方の樹脂テープ27は、その中央部のカバー外面貼付け部を前記電池1の外側に嵌装されたカバー部材15の配線基板側の端面カバー部15aのうち、前記端子露出用開口17の形成部を除く部分の外面に貼付けられ、両端の張出し部を前記電池1の胴部2の両面及び前記端面カバー部15aの周面の両側部にそれぞれ貼付けられて前記配線基板側の端面カバー部15aを前記電池1に固定しており、また、前記他方の樹脂テープ28は、その中央部のカバー外面貼付け部を前記電池1の外側に嵌装されたカバー部15の反対側の端面カバー部15bの外面に貼付けられ、両端の張出し部を前記電池1の胴部2の両面及び前記端面カバー部15bの周面の両側部にそれぞれ貼付けられて前記反対側の端面カバー部15bを前記電池1に固定している。   The one resin tape 27 includes the terminal exposure opening 17 in the end face cover portion 15a on the wiring board side of the cover member 15 in which the cover outer surface pasting portion at the center thereof is fitted to the outside of the battery 1. Are attached to the outer surface of the portion excluding the forming portion, and the protruding portions at both ends are attached to both sides of the body portion 2 of the battery 1 and both sides of the peripheral surface of the end surface cover portion 15a, respectively. The portion 15a is fixed to the battery 1, and the other resin tape 28 has an end surface cover on the opposite side of the cover portion 15 fitted to the outside of the battery 1 with a cover outer surface pasting portion at the center thereof. Attached to the outer surface of the part 15b, the overhanging parts at both ends are affixed to both sides of the body part 2 of the battery 1 and both sides of the peripheral surface of the end face cover part 15b, and the opposite end face cover part 15b is It is fixed to the pond 1.

さらに、前記樹脂フィルム26は、前記電池1の胴部2の周囲に、前記カバー部材15の配線基板側と反対側の端面カバー部15a,15bの周面及び側面カバー部15cの外面を覆って巻付けられ、前記電池1の胴部2と前記カバー部材15の両方に貼付けられるとともに、その両端の前記反対側の端面カバー部15bに対応する部分同士を貼合わされて前記電池1と前記カバー部材15とを固定している。   Further, the resin film 26 covers the periphery of the body portion 2 of the battery 1 and the outer surface of the end surface cover portions 15a and 15b opposite to the wiring board side of the cover member 15 and the outer surface of the side surface cover portion 15c. The battery 1 and the cover member are wound and attached to both the body portion 2 and the cover member 15 of the battery 1 and the portions corresponding to the opposite end face cover portions 15b at both ends thereof are attached to each other. 15 is fixed.

なお、この樹脂フィルム26は、前記樹脂テープ27,28の貼付け後に貼付けられており、したがって、前記樹脂テープ27,28の電池胴部2の両面及び端面カバー部15a,15bの周面の両側部に貼付けられた部分は前記樹脂フィルム26により覆われている。   The resin film 26 is pasted after the resin tapes 27 and 28 are pasted. Therefore, both sides of the battery body 2 of the resin tapes 27 and 28 and both sides of the peripheral surfaces of the end surface cover portions 15a and 15b. The portion pasted on is covered with the resin film 26.

この電池パックの製造方法を説明すると、この電池パックは次のようにして組立てられる。   The manufacturing method of the battery pack will be described. The battery pack is assembled as follows.

まず、図2に示すように、配線基板側の電池端面3aに形成された正極4aに前記正極用電極板9をスポット溶接し、反対側の電池端面3b及び電池胴部2の一側面に前記絶縁紙13を貼付けるとともに、その外側に前記負極用電極板10とこの負極用電極板10に電極板接続11aを予めスポット溶接しておいたリード部材11とを配置して、前記負極用電極板10を、前記絶縁紙13の開口14内において電池1の負極4bにスポット溶接する。 First, as shown in FIG. 2, the positive electrode plate 9 is spot welded to the positive electrode 4 a formed on the battery end surface 3 a on the wiring board side, and the battery end surface 3 b on the opposite side and one side surface of the battery body 2 are The insulating paper 13 is affixed, and the negative electrode plate 10 and the lead member 11 in which the electrode plate connecting piece 11a is spot-welded to the negative electrode plate 10 are arranged on the outer side, and the negative electrode is used. The electrode plate 10 is spot welded to the negative electrode 4 b of the battery 1 in the opening 14 of the insulating paper 13.

次に、前記配線基板5を前記スペーサ枠21に支持させて前記カバー部材15の配線基板側の端面カバー部15aの配線基板収容部16に収容し、そのカバー部材15を、図3に示したように、前記電池1の外側にその2つの端面3a,3b及び胴部2の一側面を囲むように嵌装する。   Next, the wiring substrate 5 is supported by the spacer frame 21 and is accommodated in the wiring substrate accommodating portion 16 of the end surface cover portion 15a on the wiring substrate side of the cover member 15, and the cover member 15 is shown in FIG. As described above, the battery 1 is fitted on the outside of the battery 1 so as to surround the two end surfaces 3a and 3b and one side surface of the body portion 2.

次に、前記カバー部材15の各カバー部15a,15b,15cの内面の周縁部を前記電池1に当接させ、その状態で、図4に示したように、前記樹脂テープ27,28を貼付け、次いで前記樹脂フィルム26を巻付けて貼付けることにより電池パックを完成する。   Next, the peripheral portions of the inner surfaces of the cover portions 15a, 15b, and 15c of the cover member 15 are brought into contact with the battery 1, and in this state, the resin tapes 27 and 28 are applied as shown in FIG. Subsequently, the battery film is completed by winding and pasting the resin film 26.

前記電池パックは、前記電池1の一端側に、前記電池1の端面3a,3bの外形内に収まる形状を有し、一方の面に外部接続用の正極端子6a及び負極端子6bとサーミスタ端子7が設けられ、内面に電池温度測定用サーミスタ素子が設けられるとともに、前記電池1の正負の電極4a,4bと前記正極端子6a及び負極端子6bとを接続するための電池接続配線と、前記サーミスタ素子と前記サーミスタ端子7とを接続するサーミスタ配線とが形成された配線基板5を、前記正極端子6a及び負極端子6bとサーミスタ端子7が設けられた面を前記電池1とは反対側に向けて配置し、前記電池1の正負の電極4a,4bをそれぞれ前記配線基板5に接続するとともに、前記電池1の側部に、前記電池1に対向する内面に配線基板収容部16が形成されるとともに、外面に前記配線基板5の正極端子6a及び負極端子6bとサーミスタ端子7に対応する端子露出用開口17が形成された樹脂成形品からなるカバー部材15を、前記配線基板収容部16に前記配線基板5を収容し、前記内面の周縁部を前記電池1に当接させて配置し、前記電池1の胴部2の周囲に前記カバー部材15を覆って前記樹脂フィルム26を巻付け、この樹脂フィルム26を前記電池1とカバー部材15の両方に貼付けて前記電池1と前記カバー部材15とを固定したものであるため、外形を小さくし、電子機器内の実装スペースを小さくすることができる。   The battery pack has a shape that fits within the outer shape of the end faces 3a and 3b of the battery 1 on one end side of the battery 1, and has a positive terminal 6a and a negative terminal 6b for external connection and a thermistor terminal 7 on one side. A battery temperature measurement thermistor element is provided on the inner surface of the battery 1, and a battery connection wiring for connecting the positive and negative electrodes 4a, 4b of the battery 1 to the positive electrode terminal 6a and the negative electrode terminal 6b, and the thermistor element And the thermistor wiring for connecting the thermistor terminal 7 is arranged with the surface on which the positive electrode terminal 6a and the negative electrode terminal 6b and the thermistor terminal 7 are provided facing away from the battery 1. The positive and negative electrodes 4 a and 4 b of the battery 1 are connected to the wiring board 5, respectively, and the wiring board housing part 16 is provided on the side of the battery 1 and on the inner surface facing the battery 1. A cover member 15 made of a resin molded product having a terminal exposure opening 17 corresponding to the positive terminal 6a and negative terminal 6b of the wiring board 5 and the thermistor terminal 7 is formed on the outer surface of the wiring board housing portion. The wiring board 5 is accommodated in 16, the peripheral edge of the inner surface is disposed in contact with the battery 1, and the resin film 26 is wound around the body 2 of the battery 1 so as to cover the cover member 15. Since the resin film 26 is attached to both the battery 1 and the cover member 15 and the battery 1 and the cover member 15 are fixed, the outer shape is reduced and the mounting space in the electronic device is reduced. be able to.

すなわち、この実施例の電池パックは、前記電池1の2つの端面3a,3bと胴部2の一側面を前記樹脂成形品からなる3方枠状のカバー部材15により囲み、前記電池1とカバー部材15とを、前記電池1の胴部2の周囲に前記カバー部材15を覆って巻付けて前記電池1とカバー部材15の両方に貼付けた前記樹脂フィルム26により固定したものであるため、電池パックの平面形状を、樹脂成形品からなるカバーケース内に電池を収容した従来の電池パックに比べて、少なくとも前記カバーケースの一方の側面の厚さに相当する寸法だけ小さくし、また厚さを、前記従来の電池パックに比べて、前記カバーケースの両面の厚さに相当する寸法だけ小さくすることができる。   That is, in the battery pack of this embodiment, the two end faces 3a and 3b and one side surface of the body 2 of the battery 1 are surrounded by a three-side frame-shaped cover member 15 made of the resin molded product, and the battery 1 and the cover are covered. The member 15 is fixed by the resin film 26 wound around the body 2 of the battery 1 so as to cover the cover member 15 and attached to both the battery 1 and the cover member 15. The planar shape of the pack is reduced by at least a dimension corresponding to the thickness of one side surface of the cover case as compared with a conventional battery pack in which a battery is housed in a cover case made of a resin molded product. Compared with the conventional battery pack, the size corresponding to the thickness of both surfaces of the cover case can be reduced.

しかも、上記実施例では、前記電池1の胴部2の両面を平坦面に形成し、前記胴部2の両側面をそれぞれ半円形の曲面に形成しているため、電池パックの外形をより小さくし、電子機器内の実装スペースをさらに小さくすることができる。   In addition, in the above embodiment, both sides of the body portion 2 of the battery 1 are formed as flat surfaces, and both side surfaces of the body portion 2 are formed into semicircular curved surfaces, so that the outer shape of the battery pack is made smaller. In addition, the mounting space in the electronic device can be further reduced.

そして、この電池パックは、上記のように、前記カバー部材15の正極側端面カバー部15aの内面の配線基板収容部16に前記配線基板5を収容し、このカバー部材15を、前記電池2の側部に、前記正極側及び負極側の端面カバー部15a,15bと側面カバー部15cの内面の周縁部を前記電池1に当接させて配置したものであるため、容易に組立てることができる。   Then, as described above, the battery pack accommodates the wiring board 5 in the wiring board accommodation portion 16 on the inner surface of the positive electrode side end cover portion 15a of the cover member 15, and the cover member 15 is attached to the battery 2 of the battery 2. Since the peripheral portions of the inner surfaces of the positive and negative electrode side end cover portions 15a and 15b and the side surface cover portion 15c are in contact with the battery 1 on the side portions, the battery can be easily assembled.

なお、上記実施例では、前記電池1の胴部2の両側面を半円形の曲面に形成しているが、前記側面は、半円形曲面に限らず、例えば胴部2の両側面角部を斜めに面取りした形状としてもよい。 In the above embodiment, forms the sides of the body portion 2 of the battery 1 to the semi-circular curved surfaces, the side surface is not limited to the semi-circular curved surfaces, for example, the corner portions of both side surfaces of the body portion 2 It is good also as the shape which chamfered diagonally.

さらに、前記胴部2の両側面のうち、前記樹脂フィルム26が直接巻付けられる側面だけを、半円形曲面または角部を面取りした形状に形成し、前記カバー部材15により囲まれる側面は、前記胴部2の両面に対して略直角な形状に形成してもよい。 Furthermore, among the side surfaces of the front kidou portion 2, a side where the resin film 26 is only a side which is wound directly, to form a semi-circular curved or corner chamfered shape, surrounded by the cover member 15, You may form in the shape of substantially right angle with respect to both surfaces of the said trunk | drum 2. As shown in FIG.

また、上記実施例の電池パックは、前記配線基板5の電池対向面側に、前記配線基板5の外形に対応する外形の絶縁性スペーサ枠21を配置し、前記配線基板5を、前記スペーサ枠21に支持させてこのスペーサ枠21とともに前記カバー部材15の配線基板収容部16に収容しているため、前記配線基板5が前記電池の端面に接触することは無く、したがって、前記配線基板5に形成された配線が前記電池1の端面を介して短絡するのを防ぐことができる。   Further, in the battery pack of the above embodiment, an insulating spacer frame 21 having an outer shape corresponding to the outer shape of the wiring substrate 5 is disposed on the battery facing surface side of the wiring substrate 5, and the wiring substrate 5 is attached to the spacer frame. 21 and the spacer frame 21 together with the spacer frame 21 so as to be accommodated in the wiring board accommodating portion 16 of the cover member 15, the wiring board 5 does not contact the end face of the battery. It is possible to prevent the formed wiring from being short-circuited through the end face of the battery 1.

そして、上記実施例では、前記スペーサ枠21と配線基板5の一方に複数のボス部24を突設し、他方に前記複数のボス部24にそれぞれ嵌合する複数のボス嵌合孔25を設けているため、前記配線基板5を前記スペーサ枠21に、簡単に位置決めして支持させることができる。   In the above-described embodiment, a plurality of boss portions 24 project from one of the spacer frame 21 and the wiring substrate 5 and a plurality of boss fitting holes 25 that respectively fit into the plurality of boss portions 24 are provided. Therefore, the wiring board 5 can be easily positioned and supported on the spacer frame 21.

また、上記実施例の電池パックは、電池1の2つの端面3a,3bの一方に正極4aを形成し、他方の端面に負極4bを形成したものであるが、配線基板側の電池端面3aに形成された正極4aと前記配線基板5とを接続する正極用電池接続手段を、U状に折曲され、一端部を前記正極4aにスポット溶接された正極用電極板9により構成し、前記配線基板側とは反対側の電池端面3bに形成された負極4と前記配線基板5とを接続する負極用電池接続手段を、前記負極4bにスポット溶接された負極用電極板10と、一端を前記負極用電極板10に接続され、前記電池1の胴部2の一側面に沿わせて設けられたリード部材11と、このリード部材11の他端に設けられた配線基板接続片12とにより構成し、前記正極用電極板9の他端部と前記配線基板接続片12をそれぞれ前記スペーサ枠21に支持させて、前記配線基板5の電池対向面に形成された正極用及び負極用の電池接続端子8に接触させているため、電池パックの組立てを簡単にし、製造コストを低減することができる。   In the battery pack of the above embodiment, the positive electrode 4a is formed on one of the two end faces 3a and 3b of the battery 1, and the negative electrode 4b is formed on the other end face. The positive electrode battery connecting means for connecting the formed positive electrode 4a and the wiring substrate 5 is formed of a positive electrode plate 9 which is bent in a U shape and one end thereof is spot welded to the positive electrode 4a. A negative electrode battery connecting means for connecting the negative electrode 4 formed on the battery end surface 3b opposite to the substrate side and the wiring substrate 5, a negative electrode plate 10 spot welded to the negative electrode 4b, and one end of the negative electrode 4b. A lead member 11 connected to the negative electrode plate 10 and provided along one side surface of the body 2 of the battery 1 and a wiring board connecting piece 12 provided at the other end of the lead member 11 And the other end of the positive electrode plate 9 Since the wiring board connecting pieces 12 are respectively supported by the spacer frame 21 and are in contact with the battery connecting terminals 8 for the positive electrode and the negative electrode formed on the battery facing surface of the wiring board 5, the assembly of the battery pack is performed. The manufacturing cost can be reduced.

なお、上記実施例では、前記負極用電池接続手段の負極用電極板10とリード部材11とをスポット溶接により接続しているが、前記リード部材11は前記負極用電極板10と一体に形成してもよく、また、前記リード部材11をリード線とし、その一端を前記負極用電極板10に半田付け接続し、他端に前記配線基板接続片12を半田付け接続してもよい。   In the above embodiment, the negative electrode plate 10 of the negative battery connecting means and the lead member 11 are connected by spot welding. However, the lead member 11 is formed integrally with the negative electrode plate 10. Alternatively, the lead member 11 may be a lead wire, one end thereof may be soldered and connected to the negative electrode plate 10, and the wiring board connecting piece 12 may be soldered and connected to the other end.

さらに、上記実施例の電池パックは、前記カバー部材15を、2つの電池端面3a,3bにそれぞれ対応する一対の端面カバー部15a,15bと電池胴部2の一側面に対応する側面カバー部15cとを有する3方枠状部材とし、前記樹脂フィルム26前記一対の端面カバー部15a,15bの外周面と前記側面カバー部15cの外側面とを覆って巻付けているため、前記電池1の全ての角部、つまり配線基板側の電池端面3aの両側の角部と反対側の電池端面3bの両側角部を前記カバー部材15により保護し、前記全ての角部に対する落下等による衝撃を緩衝することができる。   Further, in the battery pack of the above-described embodiment, the cover member 15 includes a pair of end surface cover portions 15a and 15b corresponding to the two battery end surfaces 3a and 3b, respectively, and a side surface cover portion 15c corresponding to one side surface of the battery body portion 2. And the resin film 26 is wound around the outer peripheral surface of the pair of end surface cover portions 15a and 15b and the outer surface of the side surface cover portion 15c. , That is, both side corners of the battery end surface 3b on the opposite side of the battery end surface 3a on the wiring board side are protected by the cover member 15, and shock caused by dropping or the like on all the corners is buffered. be able to.

そして、上記実施例では、前記3方枠状のカバー部材15の配線基板側とは反対側の端面カバー部15bと側面カバー部15cの内面に、前記負極用電池接続手段の負極用電極板10とリード部材11の収容部18,19を形成することにより、前記負極用電極板10と前記リード部材11の電極板接続部を前記反対側の端面カバー部15bにより覆い、前記リード部材11の電池胴部2の一側面に沿う部分を前記側面カバー部15cにより覆っているため、前記負極用電極板10と前記リード部材11を前記カバー部材15により保護することができる。   And in the said Example, the electrode plate 10 for negative electrodes of the said battery connection means for negative electrodes is formed in the inner surface of the end surface cover part 15b and the side surface cover part 15c on the opposite side to the wiring board side of the said 3 way frame-shaped cover member 15. By forming the accommodating portions 18 and 19 of the lead member 11, the negative electrode plate 10 and the electrode plate connecting portion of the lead member 11 are covered by the opposite end face cover portion 15 b, and the battery of the lead member 11 is formed. Since the portion along one side surface of the body portion 2 is covered by the side surface cover portion 15 c, the negative electrode plate 10 and the lead member 11 can be protected by the cover member 15.

また、上記実施例では、前記3方枠状のカバー部材15の配線基板側の端面カバー部15aの端子露出用開口17の形成部を除く部分と、前記配線基板側とは反対側の端面カバー部15bとをそれぞれ、中央部を前記カバー部15b,15bの外面に貼付け、両端部を電池1の胴部2の両面にそれぞれ貼付けた樹脂テープ27,28により前記電池1に固定しているため、前記電池1とカバー部材15とを充分に高い強度で固定することができる。   Moreover, in the said Example, the part except the formation part of the terminal exposure opening 17 of the end surface cover part 15a by the side of the wiring board of the said 3 way frame-shaped cover member 15 and the end surface cover on the opposite side to the said wiring board side The portion 15b is fixed to the battery 1 by resin tapes 27 and 28 having a central portion attached to the outer surface of the cover portions 15b and 15b and both ends attached to both surfaces of the body portion 2 of the battery 1, respectively. The battery 1 and the cover member 15 can be fixed with sufficiently high strength.

なお、上記実施例の電池パックは、単体の平型電池1を備えたものであるが、電池は、例えば図7に示したような、二次電池からなる複数本の棒状電池素子30を並べてその両端に各電池素子の正極同士及び負極同士をそれぞれ接続する正極板31a及び負極板31bを設け、それを、熱収縮性樹脂等からなるパッケージフィルム32によりパッケージングした平型電池29でもよい。   The battery pack of the above embodiment includes a single flat battery 1, but the battery includes a plurality of rod-shaped battery elements 30 made of secondary batteries, for example, as shown in FIG. 7. A flat battery 29 in which a positive electrode plate 31a and a negative electrode plate 31b for connecting the positive and negative electrodes of each battery element to each other are provided at both ends and packaged with a package film 32 made of a heat-shrinkable resin or the like may be used.

また、上記実施例の電池パックは、胴部の両側面のうち、少なくとも樹脂フィルム26が直接巻付けられる側面を半円形曲面または角部を面取りした形状に形成した平型電池を備えたものであるが、電池は、胴部の両側面を前記胴部の両面に対して略直角な形状に形成した角型電池でもよい。 The battery pack of the above embodiment includes a flat battery in which at least the side surface on which the resin film 26 is directly wound is formed into a semicircular curved surface or a shape with chamfered corners among both side surfaces of the body portion. However, the battery may be a prismatic battery in which both side surfaces of the body portion are formed in a shape substantially perpendicular to both surfaces of the body portion.

図8はこの発明の第2の実施例を示す電池パックの分解斜視図であり、この実施例の電池パックは、角筒状の胴部34と2つの端面35a,35bを有し、前記2つの端面35a,35bの一方35aに正極36aが形成され、他方の端面35bに負極(図示せず)が形成された角型の平型電池33を備え、絶縁紙13、カバー部材15、前記電池33とカバー部材15とを固定するための樹脂フィルム26及び樹脂テープ27,28を、前記電池33の形状に対応する形状に形成したものである。   FIG. 8 is an exploded perspective view of a battery pack showing a second embodiment of the present invention. The battery pack of this embodiment has a rectangular tube-shaped body portion 34 and two end surfaces 35a, 35b, A square flat battery 33 having a positive electrode 36a formed on one end 35a of the two end faces 35a, 35b and a negative electrode (not shown) formed on the other end face 35b is provided. The insulating paper 13, the cover member 15, and the battery The resin film 26 and the resin tapes 27 and 28 for fixing the cover 33 and the cover member 15 are formed in a shape corresponding to the shape of the battery 33.

なお、この実施例の電池パックは、前記電池33の形状及び前記絶縁紙13とカバー部材15と樹脂フィルム26及び樹脂テープ27,28の形状が異なるが他の構成は上述した第1の実施例と同じであるため、重複する説明は図に同符号を付して省略する。   The battery pack of this embodiment is different in the shape of the battery 33 and the shapes of the insulating paper 13, the cover member 15, the resin film 26, and the resin tapes 27 and 28, but other configurations are the same as those of the first embodiment described above. Therefore, the same reference numerals are assigned to the drawings and the description is omitted.

図9はこの発明の第3の実施例を示す電池パックの分解斜視図であり、この実施例の電池パックは、一方の端面3aに正極4aと負極4bとを並べて形成した平型電池1Aを備え、正極用電池接続手段及び負極用電池接続手段をそれぞれ、U状に折曲され、一端部を前記正極4a及び負極4bにスポット溶接された電極板9a,9bにより構成するとともに、スペーサ枠21の一端部と他端部に、前記電極板9a,9bのU状折曲部を嵌合させる電極板支持部22a,22bを形成したのである。   FIG. 9 is an exploded perspective view of a battery pack showing a third embodiment of the present invention. The battery pack of this embodiment includes a flat battery 1A in which a positive electrode 4a and a negative electrode 4b are formed side by side on one end surface 3a. The positive electrode battery connecting means and the negative electrode battery connecting means are each formed by electrode plates 9a and 9b bent in a U shape and spot welded to the positive electrode 4a and the negative electrode 4b, and a spacer frame 21. The electrode plate support portions 22a and 22b for fitting the U-shaped bent portions of the electrode plates 9a and 9b are formed at one end portion and the other end portion.

なお、この電池パックの他の部分の構成は上述した第1の実施例と同じであるから、重複する説明は図に同符号を付して省略する。   In addition, since the structure of the other part of this battery pack is the same as that of the above-mentioned 1st Example, the overlapping description attaches | subjects the same sign to a figure and abbreviate | omits.

図10はこの発明の第4の実施例を示す電池パックの分解斜視図であり、この実施例の電池パックは、配線基板側の電池端面3aに対応する端面カバー部15aと電池胴部2の一側面に対応する側面カバー部15cとを有する2方枠状部材からなるカバー部材15Aを備え、電池1の胴部2の周囲に前記端面カバー部15aの外周面と前記側面カバー部の外側面とを覆って樹脂フィルム26を巻付けるとともに、前記配線基板側とは反対側の電池端面3bと、絶縁紙13の前記電池端面3bに貼付けられた部分と負極用電極板10及びリード部材11の電極板接続部を、樹脂テープ28で覆ったものである。   FIG. 10 is an exploded perspective view of a battery pack showing a fourth embodiment of the present invention. The battery pack of this embodiment includes an end face cover portion 15a corresponding to a battery end face 3a on the wiring board side and a battery body portion 2. A cover member 15A comprising a two-sided frame-shaped member having a side cover portion 15c corresponding to one side surface is provided, and an outer peripheral surface of the end surface cover portion 15a and an outer surface of the side cover portion are provided around the body portion 2 of the battery 1. The battery end face 3b opposite to the wiring board side, the portion pasted on the battery end face 3b of the insulating paper 13, the negative electrode plate 10 and the lead member 11 The electrode plate connecting portion is covered with a resin tape 28.

なお、この電池パックの他の部分の構成は上述した第1の実施例と同じであるから、重複する説明は図に同符号を付して省略する。   In addition, since the structure of the other part of this battery pack is the same as that of the above-mentioned 1st Example, the overlapping description attaches | subjects the same code | symbol to a figure and abbreviate | omits.

ただし、この実施例では、前記樹脂テープ28を、前記反対側の電池端面3bから前記側面カバー部15cの端面にわたる領域全体に対応する形状に形成し、その両端に電池胴部2の両側面に対する貼付け片部を設けるとともに、前記樹脂フィルム26の幅を、前記カバー部材15の配線基板側の端面カバー部15aの外縁から前記電池1の反対側の端縁にわたる幅にしている。   However, in this embodiment, the resin tape 28 is formed in a shape corresponding to the entire region extending from the opposite battery end surface 3b to the end surface of the side cover portion 15c, and the opposite ends of the battery body 2 are formed at both ends thereof. While providing a sticking piece part, the width of the resin film 26 is set to a width from the outer edge of the end face cover part 15a on the wiring board side of the cover member 15 to the opposite edge of the battery 1.

この実施例の電池パックは、カバー部材15Aを、配線基板側の電池端面3aに対応する端面カバー部15aと電池胴部2の一側面に対応する側面カバー部15cとを有する2方枠状部材とし、前記樹脂フィルム26を、前記端面カバー部15aの外周面と前記側面カバー部15cの外側面とを覆って巻付けているため、前記電池1の3つの角部、つまり配線基板側の電池端面3aの両側の角部と反対側の電池端面3bの一側の角部とを前記カバー部材15Aにより保護し、これらの角部に対する落下等による衝撃を緩衝することができる。   In the battery pack of this embodiment, the cover member 15A has a two-sided frame-like member having an end surface cover portion 15a corresponding to the battery end surface 3a on the wiring board side and a side surface cover portion 15c corresponding to one side surface of the battery body portion 2. And the resin film 26 is wrapped around the outer peripheral surface of the end surface cover portion 15a and the outer surface of the side surface cover portion 15c. The corners on both sides of the end surface 3a and the corners on the opposite side of the battery end surface 3b can be protected by the cover member 15A, and shocks caused by dropping or the like on these corners can be buffered.

また、この電池パックでは、前記カバー部材15Aの前記端面カバー部15aの端子露出用開口17の形成部を除く部分を、上述した第1の実施例と同様に樹脂テープ27により電池1に固定しており、したがって、前記電池1と前記カバー部材15Aとの固定強度を高くすることができる。   Further, in this battery pack, the portion of the cover member 15A excluding the portion for forming the terminal exposure opening 17 of the end face cover portion 15a is fixed to the battery 1 by the resin tape 27 as in the first embodiment. Therefore, the fixing strength between the battery 1 and the cover member 15A can be increased.

図11はこの発明の第5の実施例を示す電池パックの分解斜視図であり、この実施例の電池パックは、配線基板側の電池端面3aに対応する形状のカバー部材15Bを備え、前記カバー部材15Bの端子露出用開口17の形成部を除く部分を樹脂テープ27により電池1に固定し、前記電池1の胴部2の周囲に前記カバー部材15Bの外周面を覆って樹脂フィルム26を巻付けるとともに、前記配線基板側とは反対側の電池端面3bと、絶縁紙13の前記電池端面3bに貼付けられた部分と負極用電極板10及びリード部材11の電極板接続部を、樹脂テープ28で覆い、電池胴部2の一側面と、前記絶縁紙13の電池胴部2に貼付けられた部分及び前記リード部材11の電池胴部2に沿う部分を前記樹脂フィルム26で覆ったものである。   FIG. 11 is an exploded perspective view of a battery pack showing a fifth embodiment of the present invention. The battery pack of this embodiment includes a cover member 15B having a shape corresponding to the battery end surface 3a on the wiring board side, and the cover A portion of the member 15B excluding a portion where the terminal exposure opening 17 is formed is fixed to the battery 1 with a resin tape 27, and a resin film 26 is wound around the trunk portion 2 of the battery 1 so as to cover the outer peripheral surface of the cover member 15B. At the same time, the battery end surface 3b opposite to the wiring substrate side, the portion pasted on the battery end surface 3b of the insulating paper 13, and the electrode plate connecting portion of the negative electrode plate 10 and the lead member 11 are connected to the resin tape 28. And the resin film 26 covers the side surface of the battery body 2, the portion of the insulating paper 13 attached to the battery body 2, and the portion of the lead member 11 along the battery body 2. .

なお、この電池パックの他の部分の構成は上述した第1の実施例と同じであるから、重複する説明は図に同符号を付して省略する。   In addition, since the structure of the other part of this battery pack is the same as that of the above-mentioned 1st Example, the overlapping description attaches | subjects the same code | symbol to a figure and abbreviate | omits.

ただし、この実施例では、前記樹脂テープ28を、前記反対側の電池端面3bの全体に対応する形状に形成し、その両端に電池胴部2の両側面に対する貼付け片部を設けるとともに、前記樹脂フィルム26の幅を、前記カバー部材15Aの外縁から前記電池1の反対側の端縁にわたる幅にしている。   However, in this embodiment, the resin tape 28 is formed in a shape corresponding to the entire battery end surface 3b on the opposite side, and paste pieces for both side surfaces of the battery body 2 are provided at both ends, and the resin The width of the film 26 is set to a width from the outer edge of the cover member 15 </ b> A to the opposite edge of the battery 1.

この実施例の電池パックは、配線基板側の電池端面3aに対応する形状のカバー部材15Bを備え、前記樹脂フィルム26を、前記カバー部材15Bの外周面を覆って巻付けているため、前記電池1の配線基板側の2つの角部を前記カバー部材15Bにより保護し、これらの角部に対する落下等による衝撃を緩衝することができる。   The battery pack of this embodiment includes a cover member 15B having a shape corresponding to the battery end surface 3a on the wiring board side, and the resin film 26 is wound around the outer peripheral surface of the cover member 15B. Two corners on one wiring board side can be protected by the cover member 15B, and shock caused by dropping or the like on these corners can be buffered.

また、この電池パックでは、前記カバー部材15Bの端子露出用開口17の形成部を除く部分を、上述した第1の実施例と同様に樹脂テープ27により電池1に固定しており、したがって、前記電池1と前記カバー部材15Aとの固定強度を高くすることができる。   Further, in this battery pack, the portion of the cover member 15B excluding the portion for forming the terminal exposure opening 17 is fixed to the battery 1 with the resin tape 27 in the same manner as in the first embodiment described above. The fixing strength between the battery 1 and the cover member 15A can be increased.

なお、上述した各実施例の電池パックは、平型電池1,1A,29,33を備えたものであるが、電池は、平型電池に限らず、角棒状または丸棒状のものでもよい。   In addition, although the battery pack of each Example mentioned above is provided with the flat batteries 1, 1A, 29, 33, a battery is not restricted to a flat battery, A square bar shape or a round bar shape may be sufficient.

また、上記各実施例の電池パックは、一方の面に外部接続用の正極端子6a及び負極端子6bとサーミスタ端子7を設け、他方の面に電池温度測定用のサーミスタ素子(図示せず)が設けられるとともに、前記電池1の正負の電極4a,4bと前記正極端子6a及び負極端子6bとを接続するための電池接続配線と、前記サーミスタ素子と前記サーミスタ端子7とを接続するサーミスタ配線とを形成した配線基板5を備えているが、前記配線基板5を省略し、カバー部材15,15A,15Bの内面に、前記端子露出用開口17にそれぞれ対応させて外部接続用の正極端子及び負極端子とサーミスタ端子を設けるか、あるいは、前記カバー部材15,15A,15Bの外面に外部接続用の正極端子及び負極端子とサーミスタ端子とを設けて前記端子露出用開口17を省略してもよく、その場合は、前記電池1の正負の電極4a,4bと外部接続用の正極端子及び負極端子とをリード線等により接続するとともに、前記カバー部材15,15A,15Bの内面にサーミスタ素子を設けて、このサーミスタ素子と前記サーミスタ端子7とをリード線等により接続すればよい。   The battery pack of each of the above embodiments is provided with the positive electrode terminal 6a and the negative electrode terminal 6b for external connection on one side and the thermistor terminal 7 on one side, and a thermistor element (not shown) for measuring the battery temperature on the other side. A battery connection wiring for connecting the positive and negative electrodes 4a, 4b of the battery 1 to the positive terminal 6a and the negative terminal 6b, and a thermistor wiring for connecting the thermistor element and the thermistor terminal 7. Although the formed wiring board 5 is provided, the wiring board 5 is omitted, and a positive terminal and a negative terminal for external connection are formed on the inner surfaces of the cover members 15, 15 A, and 15 B so as to correspond to the terminal exposure openings 17, respectively. And a thermistor terminal, or a positive electrode terminal and a negative electrode terminal for external connection and a thermistor terminal on the outer surface of the cover member 15, 15A, 15B. The terminal exposure opening 17 may be omitted. In this case, the positive and negative electrodes 4a and 4b of the battery 1 are connected to the positive terminal and the negative terminal for external connection by lead wires and the cover member 15 is provided. 15A and 15B, a thermistor element is provided on the inner surface, and the thermistor element and the thermistor terminal 7 may be connected by a lead wire or the like.

すなわち、この発明の電池パックは、胴部と2つの端面を有し、前記2つの端面の一方または両方に正負の電極が形成された電池と、前記電池の2つの端面と胴部の一側面とのうち、少なくとも前記2つの端面の一方に対応する形状を有する樹脂成形品からなり、前記電池の側部に配置されたカバー部材と、前記電池の前記カバー部材が対応する一方の端面側に設けられ、前記電池の正負の電極にそれぞれ接続された外部接続用の正極端子及び負極端子と、前記電池の胴部の周囲方向に前記カバー部材を覆って巻付けられ、前記電池とカバー部材の両方に貼付けられて前記電池と前記カバー部材とを固定する樹脂フィルムとからなるものであればよく、このような構成とすることにより、外形を小さくし、電子機器内の実装スペースを小さくすることができる。   That is, the battery pack of the present invention includes a battery having a body portion and two end surfaces, and a positive and negative electrode formed on one or both of the two end surfaces, and two end surfaces of the battery and one side surface of the body portion. And a cover member disposed on a side portion of the battery, and one end surface side of the battery corresponding to the cover member. A positive terminal and a negative terminal for external connection respectively connected to the positive and negative electrodes of the battery, and wound around the cover member in the circumferential direction of the body of the battery. What is necessary is just to consist of the resin film affixed on both and fixing the said battery and the said cover member, and by setting it as such a structure, an external shape is made small and the mounting space in an electronic device is made small. Rukoto can.

この発明の第1の実施例を示す電池パックの分解斜視図。1 is an exploded perspective view of a battery pack showing a first embodiment of the present invention. 前記電池パックの組立て途中の状態の斜視図。The perspective view of the state in the middle of the assembly of the said battery pack. 前記電池パックの組立て途中の状態の斜視図。The perspective view of the state in the middle of the assembly of the said battery pack. 前記電池パックの組立て完了状態の斜視図。The perspective view of the assembly completion state of the said battery pack. 図4のV―V線に沿う拡大断面図。The expanded sectional view which follows the VV line of FIG. 図4のVI―VI線に沿う拡大断面図。The expanded sectional view which follows the VI-VI line of FIG. 電池の変形例を示す斜視図。The perspective view which shows the modification of a battery. この発明の第2の実施例を示す電池パックの分解斜視図。The exploded perspective view of the battery pack which shows the 2nd Example of this invention. この発明の第3の実施例を示す電池パックの分解斜視図。The exploded perspective view of the battery pack which shows the 3rd Example of this invention. この発明の第4の実施例を示す電池パックの分解斜視図。The disassembled perspective view of the battery pack which shows the 4th Example of this invention. この発明の第5の実施例を示す電池パックの分解斜視図。The exploded perspective view of the battery pack which shows the 5th Example of this invention.

符号の説明Explanation of symbols

1,1A,29,33…電池、2,34…胴部、3a,3b,35a,35b…電池端面、4a,36a…正極、31a…正極板、4b…負極、31b…負極板、5…配線基板、6a…正極端子、6b…負極端子、7…サーミスタ端子、8…電池接続端子、9,9a…正極用電極板、9b,10…負極用電極板、11…リード部材、12…配線基板接続片、13…絶縁紙、15,15A,15B…カバー部材、15a,15b…端面カバー部、15c…側面カバー部、16…配線基板収容部、17…端子露出用開口、18…負極用電極板収容部、19…リード部材収容部、21…スペーサ枠、22,22a,22b…電極板支持部、23…接続片支持部、24…ボス部、25…ボス嵌合孔、26…樹脂フィルム、27,28…樹脂テープ。   DESCRIPTION OF SYMBOLS 1,1A, 29,33 ... battery, 2,34 ... trunk | drum, 3a, 3b, 35a, 35b ... battery end surface, 4a, 36a ... positive electrode, 31a ... positive electrode plate, 4b ... negative electrode, 31b ... negative electrode plate, 5 ... Wiring board, 6a ... positive electrode terminal, 6b ... negative electrode terminal, 7 ... thermistor terminal, 8 ... battery connection terminal, 9, 9a ... positive electrode plate, 9b, 10 ... negative electrode plate, 11 ... lead member, 12 ... wiring Board connecting piece, 13 ... insulating paper, 15, 15A, 15B ... cover member, 15a, 15b ... end face cover part, 15c ... side cover part, 16 ... wiring board housing part, 17 ... terminal exposure opening, 18 ... for negative electrode Electrode plate housing part, 19 ... Lead member housing part, 21 ... Spacer frame, 22, 22a, 22b ... Electrode plate support part, 23 ... Connection piece support part, 24 ... Boss part, 25 ... Boss fitting hole, 26 ... Resin Film, 27, 28 ... Resin tape.

Claims (4)

胴部と2つの端面を有し、前記2つの端面の一方または両方に正負の電極が形成された電池と、
前記電池の2つの端面と胴部の一側面とのうち、少なくとも前記2つの端面の一方に対応する形状を有する樹脂成形品からなり、前記電池の側部に配置されたカバー部材と、
前記電池の前記カバー部材が対応する一方の端面側に設けられ、前記電池の正負の電極にそれぞれ接続された外部接続用の正極端子及び負極端子と、
前記電池の胴部の周囲方向に前記カバー部材を覆って巻付けられ、前記電池と前記カバー部材の両方に貼付けられて前記電池と前記カバー部材とを固定する樹脂フィルムとを備え、
前記カバー部材の正極端子及び負極端子側の電池端面に対応する部分のうち、前記正極端子及び負極端子の配置部を除く部分が、中央部を前記カバー部材の外面に貼付けられ、両端部を電池の胴部の両面にそれぞれ貼付けられた樹脂テープにより前記電池に固定されていることを特徴とする電池パック。
A battery having a body and two end faces, and a positive and negative electrode formed on one or both of the two end faces;
A cover member that is formed of a resin molded product having a shape corresponding to at least one of the two end surfaces of the two end surfaces of the battery and one side surface of the body portion, and is disposed on a side portion of the battery;
A positive terminal and a negative terminal for external connection provided on one end face side corresponding to the cover member of the battery, respectively connected to positive and negative electrodes of the battery;
The wound covering the cover member in the circumferential direction of the body portion of the battery, and a resin film said attached on both the battery and the cover member for fixing the said cover member and said battery,
Among the portions corresponding to the battery terminal surfaces on the positive electrode terminal and negative electrode terminal side of the cover member, the portion excluding the arrangement portion of the positive electrode terminal and the negative electrode terminal is adhered to the outer surface of the cover member, and both ends are connected to the battery. A battery pack, wherein the battery pack is fixed to the battery by a resin tape attached to both sides of the body portion of the battery.
胴部と2つの端面を有し、前記2つの端面の一方に正の電極が形成され、他方の端面に負の電極が形成された電池と、
前記電池の2つの端面と胴部の一側面とのうち、少なくとも前記2つの端面の一方に対応する形状を有する樹脂成形品からなり、前記電池の側部に配置されたカバー部材と、
前記電池の前記カバー部材が対応する一方の端面側に設けられ、前記電池の正負の電極にそれぞれ接続された外部接続用の正極端子及び負極端子と、
前記電池の胴部の周囲方向に前記カバー部材を覆って巻付けられ、前記電池と前記カバー部材の両方に貼付けられて前記電池と前記カバー部材とを固定する樹脂フィルムとを備え、
前記電池の一端側に、前記電池の端面の外形内に収まる形状を有し、一方の面に外部接続用の正極端子及び負極端子が設けられるとともに前記電池の正負の電極と前記正極端子及び負極端子とを接続するための配線が形成された配線基板が、前記正極端子及び負極端子が設けられた面を前記電池とは反対側に向けて配置され、
前記電池の正負の電極と前記配線基板とがその接続手段により接続され、
前記カバー部材の前記電池に対向する内面に配線基板収容部が形成されるとともに外面に前記配線基板の前記正極端子及び負極端子に対応する端子露出用開口が形成され、
前記カバー部材が、前記配線基板収容部に前記配線基板を収容し、前記内面の周縁部を前記電池に当接させて配置され、
前記配線基板の電池対向面側に、前記配線基板の外形に対応する外形の絶縁性スペーサ枠が配置され、
前記配線基板は、前記スペーサ枠に支持されてこのスペーサ枠とともにカバー部材の配線基板収容部に収容され、
前記正極端子及び負極端子側の電池端面に形成された一方の電極と配線基板とを接続する手段は、U状に折曲され、一端部を前記一方の電極にスポット溶接された第1の電極板からなり、
前記正極端子及び負極端子側とは反対側の電池端面に形成された他方の電極と前記配線基板とを接続する手段は、前記他方の電極にスポット溶接された第2の電極板と、一端を前記第2の電極板に接続され、前記電池の胴部の一側面に沿わせて設けられたリード部材と、このリード部材の他端に設けられた配線基板接続片とからなっており、
前記第1の電極板の他端部と前記配線基板接続片がそれぞれスペーサ枠に支持されて、前記配線基板の電池対向面に形成された電池接続端子に接触されていることを特徴とする電池パック。
A battery having a body and two end faces, a positive electrode formed on one of the two end faces, and a negative electrode formed on the other end face;
A cover member that is formed of a resin molded product having a shape corresponding to at least one of the two end surfaces of the two end surfaces of the battery and one side surface of the body portion, and is disposed on a side portion of the battery;
A positive terminal and a negative terminal for external connection provided on one end face side corresponding to the cover member of the battery, respectively connected to positive and negative electrodes of the battery;
A resin film that is wrapped around the cover member in the circumferential direction of the body of the battery, and is attached to both the battery and the cover member to fix the battery and the cover member;
One end of the battery has a shape that fits within the outer shape of the end face of the battery, and a positive electrode terminal and a negative electrode terminal for external connection are provided on one surface, and the positive and negative electrodes of the battery, the positive electrode terminal, and the negative electrode A wiring board on which wiring for connecting terminals is formed is disposed with the surface on which the positive terminal and the negative terminal are provided facing away from the battery,
The positive and negative electrodes of the battery and the wiring board are connected by the connecting means,
A wiring board housing portion is formed on the inner surface of the cover member facing the battery, and terminal exposure openings corresponding to the positive and negative terminals of the wiring board are formed on the outer surface,
The cover member accommodates the wiring substrate in the wiring substrate accommodating portion, and is arranged with the peripheral portion of the inner surface being in contact with the battery;
An insulating spacer frame having an outer shape corresponding to the outer shape of the wiring board is disposed on the battery facing surface side of the wiring board,
The wiring board is supported by the spacer frame and is housed in the wiring board housing portion of the cover member together with the spacer frame,
The means for connecting one electrode formed on the battery end face on the positive electrode terminal and negative electrode terminal side to the wiring board is a first electrode bent in a U shape and spot welded to the one electrode at one end. Made of plates,
Means for connecting the other electrode formed on the battery end surface opposite to the positive electrode terminal and the negative electrode terminal side to the wiring board includes a second electrode plate spot-welded to the other electrode, and one end. A lead member connected to the second electrode plate and provided along one side of the battery body, and a wiring board connecting piece provided at the other end of the lead member;
The battery is characterized in that the other end of the first electrode plate and the wiring board connection piece are respectively supported by a spacer frame and are in contact with battery connection terminals formed on the battery facing surface of the wiring board. pack.
胴部と2つの端面を有し、前記2つの端面の一方に正の電極が形成され、他方の端面に負の電極が形成された電池と、
前記電池の2つの端面にそれぞれ対応する一対の端面カバー部と前記電池の胴部の一側面に対応する側面カバー部とを有する3方枠状の樹脂成形品からなり、前記電池の側部に配置されたカバー部材と、
前記電池の前記カバー部材が対応する一方の端面側に設けられ、前記電池の正負の電極にそれぞれ接続された外部接続用の正極端子及び負極端子と、
前記電池の胴部の周囲方向に前記カバー部材を覆って巻付けられ、前記電池と前記カバー部材の両方に貼付けられて前記電池と前記カバー部材とを固定する樹脂フィルムとを備え、
前記樹脂フィルムは、前記カバー部材の前記一対の端面カバー部の外周面と前記側面カバー部の外側面とを覆って巻付けられ、
前記正極端子及び負極端子側とは反対側の電池端面に形成された他方の電極と配線基板とを接続する手段は、前記他方の電極にスポット溶接された第2の電極板と、一端を前記第2の電極板に接続され、前記電池の胴部の一側面に沿わせて設けられたリード部材と、このリード部材の他端に設けられた配線基板接続片とからなり、
前記第2の電極板と前記リード部材の電極板接続部が前記カバー部材の正極端子及び前記負極端子側とは反対側の端面カバー部により覆われ、前記リード部材の電池胴部の一側面に沿う部分が前記カバー部材の側面カバー部により覆われていることを特徴とする電池パック。
A battery having a body and two end faces, a positive electrode formed on one of the two end faces, and a negative electrode formed on the other end face;
The battery comprises a three-sided frame-shaped resin molded product having a pair of end surface cover portions respectively corresponding to the two end surfaces of the battery and a side surface cover portion corresponding to one side surface of the body portion of the battery. A disposed cover member;
A positive terminal and a negative terminal for external connection provided on one end face side corresponding to the cover member of the battery, respectively connected to positive and negative electrodes of the battery;
A resin film that is wrapped around the cover member in the circumferential direction of the body of the battery, and is attached to both the battery and the cover member to fix the battery and the cover member;
The resin film is wound around an outer peripheral surface of the pair of end surface cover portions of the cover member and an outer surface of the side surface cover portion,
The means for connecting the other electrode formed on the battery end surface opposite to the positive electrode terminal and the negative electrode terminal side to the wiring substrate includes a second electrode plate spot-welded to the other electrode, and one end of the second electrode plate A lead member connected to the second electrode plate and provided along one side surface of the battery body, and a wiring board connecting piece provided at the other end of the lead member;
The electrode plate connecting portion of the second electrode plate and the lead member is covered with an end surface cover portion on the opposite side to the positive electrode terminal and the negative electrode terminal side of the cover member, and on one side surface of the battery body portion of the lead member. The battery pack is characterized in that a portion along the side is covered with a side cover portion of the cover member .
胴部と2つの端面を有し、前記2つの端面の一方または両方に正負の電極が形成された電池と、
前記電池の2つの端面にそれぞれ対応する一対の端面カバー部と前記電池の胴部の一側面に対応する側面カバー部とを有する3方枠状の樹脂成形品からなり、前記電池の側部に配置されたカバー部材と、
前記電池の前記カバー部材が対応する一方の端面側に設けられ、前記電池の正負の電極にそれぞれ接続された外部接続用の正極端子及び負極端子と、
前記電池の胴部の周囲方向に前記カバー部材を覆って巻付けられ、前記電池と前記カバー部材の両方に貼付けられて前記電池と前記カバー部材とを固定する樹脂フィルムとを備え、
前記樹脂フィルムは、前記一対の端面カバー部の外周面と前記側面カバー部の外側面とを覆って巻付けられ、
前記カバー部材の前記正極端子及び負極端子側の端面カバー部の前記正極端子及び負極端子の配置部を除く部分と、前記正極端子及び負極端子側とは反対側の端面カバー部とがそれぞれ、中央部を前記カバー部の外面に貼付けられ、両端部を電池の胴部の両面にそれぞれ貼付けられた樹脂テープにより前記電池に固定されていることを特徴とする電池パック。
A battery having a body and two end faces, and a positive and negative electrode formed on one or both of the two end faces;
The battery comprises a three-sided frame-shaped resin molded product having a pair of end surface cover portions respectively corresponding to the two end surfaces of the battery and a side surface cover portion corresponding to one side surface of the body portion of the battery. A disposed cover member;
A positive terminal and a negative terminal for external connection provided on one end face side corresponding to the cover member of the battery, respectively connected to positive and negative electrodes of the battery;
A resin film that is wrapped around the cover member in the circumferential direction of the body of the battery, and is attached to both the battery and the cover member to fix the battery and the cover member;
The resin film is wound around the outer peripheral surface of the pair of end surface cover portions and the outer surface of the side surface cover portion,
A portion of the cover member on the side of the positive electrode terminal and negative electrode terminal side excluding the arrangement portion of the positive electrode terminal and negative electrode terminal, and an end surface cover portion on the opposite side to the positive electrode terminal and negative electrode terminal side are respectively centered. The battery pack is characterized in that a part is affixed to the outer surface of the cover part and both ends are fixed to the battery by resin tapes affixed to both sides of the battery body part .
JP2004060991A 2004-03-04 2004-03-04 Battery pack Expired - Fee Related JP3888356B2 (en)

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