JP6256686B2 - Battery device for electric bicycle - Google Patents

Battery device for electric bicycle Download PDF

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JP6256686B2
JP6256686B2 JP2014016258A JP2014016258A JP6256686B2 JP 6256686 B2 JP6256686 B2 JP 6256686B2 JP 2014016258 A JP2014016258 A JP 2014016258A JP 2014016258 A JP2014016258 A JP 2014016258A JP 6256686 B2 JP6256686 B2 JP 6256686B2
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cylindrical cover
battery device
electric bicycle
battery
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JP2015143035A (en
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孝浩 森岡
孝浩 森岡
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Panasonic Intellectual Property Management Co Ltd
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Description

本発明は、電動自転車のバッテリ搭載部に着脱可能に搭載される電動自転車用バッテリ装置に関するものである。   The present invention relates to a battery device for an electric bicycle that is detachably mounted on a battery mounting portion of the electric bicycle.

電動自転車用バッテリ装置(以下、単にバッテリ装置とも称す)は、例えば特許文献1などに開示されているように、二次電池などからなるバッテリ本体を樹脂などからなる外装ケースで覆った構造とされている。外装ケースは、一般に、上下方向に沿って延びる分割線部を介して左右(または前後)などに2分割とされて、接合面にパッキンなどのシール材を配設した状態で、ボルトやねじなどの結合具により互いに組み付けられている。   An electric bicycle battery device (hereinafter also simply referred to as a battery device) has a structure in which a battery body made of a secondary battery or the like is covered with an outer case made of resin or the like, as disclosed in Patent Document 1, for example. ing. In general, the outer case is divided into two parts such as left and right (or front and rear) via a dividing line portion extending in the vertical direction, and a sealing material such as packing is provided on the joint surface, such as a bolt or a screw. Are assembled to each other by means of

また、バッテリ装置は、電動自転車本体に設けられたバッテリ搭載部に対して着脱可能に構成され、電動自転車本体から取り外した状態で充電可能に構成されている。このバッテリ装置は、外装ケースが外部に露出した状態で電動自転車本体に搭載されるため、電動自転車本体と同様に、外気に晒されるとともに、風雨に晒されて濡れることもある。   Further, the battery device is configured to be detachable from a battery mounting portion provided in the electric bicycle main body, and is configured to be able to be charged while being detached from the electric bicycle main body. Since the battery device is mounted on the electric bicycle body with the exterior case exposed to the outside, the battery device is exposed to the outside air and may be exposed to wind and rain as well as the electric bicycle body.

特開2012−226887号公報JP 2012-226887 A

しかし、従来のバッテリ装置では、単に電動自転車本体に搭載されている状態(すなわち、外力を受けていない状態)では損傷することは殆どないが、例えば、取り外して充電箇所に持ち込む際に誤って落とすなどして外力を受けた場合に、外装ケースが損傷してしまったり、外装ケースの接合部に隙間を生じて埃や雨水などの侵入を防止できなかったりして、バッテリ装置の機能が低下してしまうおそれがある。また、外装ケース同士の接合部端面が外部に露出するため、パッキンなどのシール材を配設する必要があり、その分だけ、製造コストが増加している。   However, the conventional battery device is hardly damaged when it is simply mounted on the electric bicycle body (that is, not receiving external force). For example, it is accidentally dropped when it is removed and brought into a charging location. If the external case is subjected to external force, the outer case will be damaged, or a gap will be created at the joint of the outer case, preventing the entry of dust, rainwater, etc. There is a risk that. Moreover, since the joint part end surface of exterior cases is exposed outside, it is necessary to arrange sealing materials, such as packing, and the manufacturing cost is correspondingly increased.

また、従来のバッテリ装置は、外部に露出する外装ケースの色やデザインなどを自分好みに変更することが困難であった。さらに、従来のバッテリ装置ではその外装ケースが外部に露出しており、埃や雨水などが付着して汚れることがあるが、外装ケースの内側には電線や各種電子部品などが組み付けられている。したがって、外装ケースが汚れた場合には、バッテリ装置全体を交換しなくてはならず、この結果、交換時の費用が割高になるという課題も有していた。   In addition, it is difficult for the conventional battery device to change the color, design, etc. of the exterior case exposed to the outside to your liking. Further, in the conventional battery device, the outer case is exposed to the outside, and dust and rainwater may adhere and become dirty, but an electric wire, various electronic components, and the like are assembled inside the outer case. Therefore, when the exterior case becomes dirty, the entire battery device has to be replaced. As a result, there is a problem that the cost for replacement becomes high.

本発明は上記課題を解決するもので、当該バッテリ装置を落とすなどして外力を受けた場合でも、バッテリ装置の機能が低下してしまうことを最小限に抑えることができ、かつ、外面の色やデザインなどを自分好みに容易に変更できる電動自転車用バッテリ装置を提供することを目的とするものである。   The present invention solves the above problem, and even when an external force is applied by dropping the battery device, it is possible to minimize the deterioration of the function of the battery device, and the color of the outer surface. An object of the present invention is to provide a battery device for an electric bicycle that can be easily changed to a personal preference.

上記課題を解決するために、本発明は、電動自転車本体に着脱可能に搭載される電動自転車用バッテリ装置であって、バッテリ本体を収納した外装ケースと、外装ケースの外周を覆う姿勢で着脱自在の筒状カバーとを備え、筒状カバーが、上下方向に複数設けられ、筒状カバーとして、外装ケースの中央部外周を覆う中央筒状カバーと、外装ケースの上部外周を覆う上部筒状カバーとを有し、外装ケースの下部に、中央筒状カバーの下端部が当接される段部などの位置規制部が形成され、中央筒状カバーの上方に上部筒状カバーが配設され、上部筒状カバーが外装ケースに固定されることで、前記位置規制部と上部筒状カバーとの間に中央筒状カバーが位置する状態で配設されていることを特徴とする。 In order to solve the above-described problems, the present invention provides an electric bicycle battery device that is detachably mounted on an electric bicycle body, and is detachable in an attitude that covers an outer case that houses the battery body and an outer periphery of the outer case. A plurality of cylindrical covers are provided in the vertical direction, and as the cylindrical cover, a central cylindrical cover that covers the outer periphery of the central portion of the outer case, and an upper cylindrical cover that covers the upper outer periphery of the outer case A position restricting portion such as a step portion with which the lower end portion of the central cylindrical cover abuts is formed at the bottom of the outer case, and the upper cylindrical cover is disposed above the central cylindrical cover, The upper cylindrical cover is fixed to the outer case so that the central cylindrical cover is disposed between the position restricting portion and the upper cylindrical cover .

この構成によれば、バッテリ本体が外装ケースだけでなく筒状カバーによっても覆われて保護されるため、当該バッテリ装置を電動自転車本体から取り外して充電箇所に持ち込む際に、このバッテリ装置を落とすなどして外力を受けた場合でも、筒状カバーが損傷することがあっても、外装ケースについては損傷してしまうことが殆どなくなる。また、筒状カバーが着脱自在であるため、筒状カバーを取り外して、筒状カバーの色やデザインなどを自分好みに変更することを容易に行うことができる。また、外部に露出する筒状カバーが汚れたり、損傷したりした際には、筒状カバーだけを交換するだけで済むため、交換時の費用が安価となる。
また、筒状カバーが、上下方向に複数設けられ、筒状カバーとして、外装ケースの中央部外周を覆う中央筒状カバーと、外装ケースの上部外周を覆う上部筒状カバーとを有し、外装ケースの下部に、中央筒状カバーの下端部が当接される段部などの位置規制部が形成され、中央筒状カバーの上方に上部筒状カバーが配設され、上部筒状カバーが外装ケースに固定されることで、前記位置規制部と上部筒状カバーとの間に中央筒状カバーが位置する状態で配設されていることにより、外装ケースを高さ方向に異なる筒状カバーで良好に覆うことができて、色や柄の異なる筒状カバーを組み合わせて配設できるなど、外面の色やデザインなどを自分好みに容易に変更することができる。
According to this configuration, since the battery body is covered and protected not only by the outer case but also by the cylindrical cover, the battery apparatus is dropped when the battery apparatus is removed from the electric bicycle body and brought into a charging location. Even when the external force is received, the outer case is hardly damaged even if the cylindrical cover is damaged. Further, since the cylindrical cover is detachable, it is possible to easily remove the cylindrical cover and change the color and design of the cylindrical cover to your liking. Further, when the cylindrical cover exposed to the outside is soiled or damaged, it is only necessary to replace the cylindrical cover, so that the cost for replacement is reduced.
In addition, a plurality of cylindrical covers are provided in the vertical direction, and the cylindrical cover includes a central cylindrical cover that covers the outer periphery of the central portion of the outer case, and an upper cylindrical cover that covers the upper outer periphery of the outer case. At the bottom of the case is formed a position restricting part such as a step where the lower end of the central cylindrical cover abuts, the upper cylindrical cover is disposed above the central cylindrical cover, and the upper cylindrical cover is the exterior By being fixed to the case, a central cylindrical cover is disposed between the position restricting portion and the upper cylindrical cover, so that the outer case is made of a different cylindrical cover in the height direction. It is possible to easily change the color and design of the outer surface to your liking, such as being able to cover well and arrange and arrange cylindrical covers with different colors and patterns.

また、本発明の外装ケースは複数に分割されて互いに組合わされ、前記筒状カバーは、これら複数の外装ケースの外周を跨る姿勢で配設されていることを特徴とする。この構成により、外装ケースが複数に分割されており、例え、当該バッテリ装置を落とすなどして外力を受けて、外装ケースの接合部同士が互いに分離する方向に力が加えられた場合でも、外装ケースの接合部同士が分離する方向に移動することが筒状カバーにより阻止され、外装ケースの接合部の隙間から埃や雨水などが侵入することを防止できる。また、外装ケースの接合部に、パッキンなどのシール材を配設しなくても済んだり、簡単なもので済ますことができたりして、製造コストを低減することも可能となる。   Further, the outer case of the present invention is divided into a plurality of parts and combined with each other, and the cylindrical cover is disposed in a posture straddling the outer periphery of the plurality of outer cases. With this configuration, the exterior case is divided into a plurality of parts.For example, even when a force is applied in a direction in which the joint portions of the exterior case are separated from each other by receiving an external force such as dropping the battery device. The cylindrical cover prevents the joint portions of the case from moving in the direction of separation, and dust, rainwater, and the like can be prevented from entering from the gap between the joint portions of the outer case. Moreover, it is not necessary to provide a sealing material such as packing at the joint portion of the outer case, or a simple material can be used, and the manufacturing cost can be reduced.

また、本発明の外装ケースは互いに組合わされた状態で平面視矩形形状とされ、筒状カバーは単数または複数設けられ、少なくとも一部の筒状カバーは、弾性変形可能でかつ角筒形状とされているとともに平面視して少なくとも対となった対向する辺同士の中央側が窪む形状とされていることを特徴とする。この構成により、筒状カバーを外装ケースに被せるだけで、外装ケースに密着した状態で筒状カバーを装着できる。   Further, the outer case of the present invention has a rectangular shape in plan view when combined with each other, and one or a plurality of cylindrical covers are provided, and at least some of the cylindrical covers are elastically deformable and have a rectangular tube shape. In addition, it is characterized in that at least the center sides of the opposing sides that are paired in plan view are recessed. With this configuration, the cylindrical cover can be attached in a state of being in close contact with the outer case simply by covering the outer case with the cylindrical cover.

また、本発明は、前記筒状カバーが金属製であることを特徴とする。この構成により、バッテリ本体など外装ケースに収納されている内部からの発熱量が多い場合でも、金属製の筒状カバーを通して内部の熱を良好に発散させることができて、信頼性が向上する。   The present invention is characterized in that the cylindrical cover is made of metal. With this configuration, even when a large amount of heat is generated from the inside of the battery case such as the battery main body, the internal heat can be dissipated well through the metal cylindrical cover, and the reliability is improved.

また、本発明は、当該電動自転車以外の電気機器に充電するためおよび当該バッテリ装置を充電するための少なくとも一方の機能を行うための充電用接続端子部が設けられていることを特徴とする。この構成により、充電用接続端子部を用いて、当該電動自転車以外の電気機器(例えば、携帯電話装置など)を充電したり、当該バッテリ装置を外部から充電したりすることができる。   In addition, the present invention is characterized in that a charging connection terminal portion for performing at least one function for charging an electric device other than the electric bicycle and charging the battery device is provided. With this configuration, it is possible to charge an electric device other than the electric bicycle (for example, a mobile phone device) or to charge the battery device from the outside using the connection terminal for charging.

本発明によれば、バッテリ本体を収納する外装ケースの周囲を筒状カバーによって覆うことにより、バッテリ本体が外装ケースだけでなく筒状カバーによっても覆われて保護されるため、例え、当該バッテリ装置を取り外して充電箇所に持ち込む際に、落とすなどして外力を受けた場合でも、外装ケースが損傷してしまうことが殆どなくなり、極めて良好な信頼性を得ることができる。また、筒状カバーを取り外して、筒状カバーの色やデザインなどを自分好みに変更することを比較的容易に行うことができる。また、外部に露出する筒状カバーが汚れたり、損傷したりした際には、筒状カバーだけを交換するだけで済み、バッテリ装置全体を交換する場合と比較して、交換費用が安価となる。
また、筒状カバーとして、外装ケースの中央部外周を覆う中央筒状カバーと、外装ケースの上部外周を覆う上部筒状カバーとを有する構成とし、中央筒状カバーの上方に上部筒状カバーを配設することなど、筒状カバーを、上下方向に複数設けることにより、外装ケースを高さ方向に異なる筒状カバーで良好に覆うことができて、色や柄の異なる筒状カバーを組み合わせて配設できるなど、外面の色やデザインなどを自分好みに容易に変更することができる。
According to the present invention, the battery case is covered and protected not only by the outer case but also by the cylindrical cover by covering the periphery of the outer case that houses the battery main body with the cylindrical cover. Even if the external case is subjected to external force when it is dropped and taken into the charging location, the outer case is hardly damaged and extremely good reliability can be obtained. Also, it is relatively easy to remove the cylindrical cover and change the color and design of the cylindrical cover to your liking. In addition, when the cylindrical cover exposed to the outside becomes dirty or damaged, it is only necessary to replace the cylindrical cover, and the replacement cost is lower than when the entire battery device is replaced. .
In addition, as the cylindrical cover, a configuration having a central cylindrical cover that covers the outer periphery of the central portion of the outer case and an upper cylindrical cover that covers the upper outer periphery of the outer case, the upper cylindrical cover is disposed above the central cylindrical cover. By providing multiple cylindrical covers in the vertical direction, such as arranging them, the outer case can be satisfactorily covered with different cylindrical covers in the height direction, and combined with cylindrical covers of different colors and patterns The color and design of the outer surface can be easily changed to your liking.

また、外装ケースが複数に分割され、前記筒状カバーが、これら複数の外装ケースの外周を跨る姿勢で配設されていることにより、例え、当該バッテリ装置を落とすなどして外力を受けて、外装ケースの接合部同士が互いに分離する方向に力が加えられた場合でも、外装ケースの接合部同士が分離する方向に移動することが筒状カバーにより阻止され、外装ケースの接合部の隙間から埃や雨水などが侵入することを防止できて、極めて良好な信頼性を得ることができる。また、外装ケースの接合部に、パッキンなどのシール材を配設しなくても済んだり、簡単なもので済ますことができたりして、製造コストを低減することも可能となる。   Further, the outer case is divided into a plurality of parts, and the cylindrical cover is arranged in a posture straddling the outer periphery of the plurality of outer cases, for example, by receiving an external force such as dropping the battery device, Even when a force is applied in a direction in which the joint portions of the outer case are separated from each other, the tubular cover prevents the joint portions of the outer case from moving in a direction in which the joint portions are separated from each other. Dust and rainwater can be prevented from entering, and extremely good reliability can be obtained. Moreover, it is not necessary to provide a sealing material such as packing at the joint portion of the outer case, or a simple material can be used, and the manufacturing cost can be reduced.

また、少なくとも一部の筒状カバーを弾性変形可能でかつ角筒形状とし、平面視して少なくとも対となった対向する辺同士の中央側が窪む形状とすることにより、前記筒状カバーを外装ケースに被せるだけで密着した状態で筒状カバーを装着でき、外装ケースにおける筒状カバーで覆った箇所に埃や雨水などが侵入することを良好に防止できる。   Further, at least a part of the cylindrical cover is elastically deformable and has a rectangular tube shape, and at least a pair of opposing sides that are paired in a plan view has a shape in which the center side is recessed, so that the cylindrical cover is packaged. The cylindrical cover can be attached in a state of being in close contact with the case only by covering the case, and it is possible to satisfactorily prevent dust, rainwater, and the like from entering a portion of the outer case covered with the cylindrical cover.

また、前記筒状カバーを金属製とすることにより、バッテリ本体など外装ケースに収納されている内部からの発熱量が多い場合でも、金属製の筒状カバーを通して内部の熱を良好に発散させることができて、これによっても信頼性が向上する。   In addition, by making the cylindrical cover made of metal, the internal heat can be dissipated well through the metal cylindrical cover even when the amount of heat generated from the inside of the battery case such as the battery body is large. This also improves reliability.

また、当該電動自転車以外の電気機器に充電するためおよび当該バッテリ装置を充電するための少なくとも一方の機能を行うための充電用接続端子部を設けることにより、充電用接続端子部を用いて、当該電動自転車以外の電気機器(例えば、携帯電話装置など)を充電したり、当該バッテリ装置を外部から充電したりすることができる。これにより、例えば、携帯電話装置などの電気機器を充電するための予備のバッテリ装置などを別途に所持するなどしなくても済み、利便性が向上する。また、当該バッテリ装置を充電する専用の充電装置が設けられていない自宅外などの環境でも、USB接続端子など、電力を供給可能な端子を接続できる場合に、当該バッテリ装置を充電できて、利便性が向上する。   Further, by providing a connection terminal part for charging for charging an electrical device other than the electric bicycle and performing at least one function for charging the battery device, the connection terminal part for charging is used, It is possible to charge an electric device (for example, a mobile phone device) other than the electric bicycle or to charge the battery device from the outside. Thereby, for example, it is not necessary to separately have a spare battery device or the like for charging an electric device such as a mobile phone device, and convenience is improved. In addition, even in an environment such as outside the home where a dedicated charging device for charging the battery device is not provided, when the terminal capable of supplying power such as a USB connection terminal can be connected, the battery device can be charged, which is convenient. Improves.

本発明の実施の形態に係る電動自転車用バッテリ装置を搭載した電動自転車の全体側面図である。1 is an overall side view of an electric bicycle equipped with an electric bicycle battery device according to an embodiment of the present invention. 同電動自転車のバッテリ搭載部およびその近傍箇所の斜視図である(バッテリ装置は仮想線で簡略的に示す)。It is a perspective view of the battery mounting part of the electric bicycle, and its vicinity part (a battery apparatus is simply shown with a virtual line). 同電動自転車のバッテリ搭載部およびその近傍箇所を後方から見た図を示し、バッテリ装置を装着する際の状態を示す。The figure which looked at the battery mounting part of the electric bicycle and its vicinity part from the back is shown, and the state at the time of mounting | wearing with a battery apparatus is shown. 同電動自転車のバッテリ搭載部およびその近傍箇所の斜視図であり、バッテリ装置を装着する際の状態を示す。It is a perspective view of the battery mounting part of the electric bicycle and its vicinity, and shows a state when the battery device is mounted. 本発明の実施の形態に係る電動自転車用バッテリ装置を斜め上方から見た斜視図である。It is the perspective view which looked at the battery apparatus for electric bicycles which concerns on embodiment of this invention from diagonally upward. 同電動自転車用バッテリ装置を斜め下方から見た斜視図である。It is the perspective view which looked at the battery apparatus for electric bicycles from diagonally downward. 同電動自転車用バッテリ装置の分解斜視図である。It is a disassembled perspective view of the battery device for electric bicycles. 同電動自転車用バッテリ装置の分解斜視図で、外装ケース同士を組み合わせた状態を示す。It is an exploded perspective view of the battery device for electric bicycles, and shows a state where exterior cases are combined. (a)および(b)はそれぞれ同電動自転車用バッテリ装置の筒状カバーや外装ケースを簡略的に示す平面図で、(a)は筒状カバーを外装ケースに装着していない単体の状態を示し、(b)は筒状カバーを外装ケースに装着した状態を示す。(A) And (b) is a top view which each shows the cylindrical cover and exterior case of the battery apparatus for electric bicycles simply, (a) is the single-piece | unit state which has not attached the cylindrical cover to the exterior case. (B) shows the state which attached the cylindrical cover to the exterior case.

以下、本発明の実施の形態を図面に基づき説明する。
図1における1は本発明の実施の形態に係る電動自転車用バッテリ装置を搭載した電動自転車である。図1に示すように、この電動自転車1は、ヘッドパイプ2a、前フォーク2b、上パイプ2c、下パイプ2g、ハンガラグ2h(図2参照)、立パイプ2d、チェーンステー2e、シートステー2fなどからなる金属製のフレーム2と、前フォーク2bの下端に回転自在に取り付けられた前輪3と、チェーンステー2eの後端に回転自在に取り付けられた後輪4と、前輪3の向きを変更するハンドル5と、サドル6と、踏力からなる人力駆動力がかけられるクランク7およびペダル8と、補助駆動力(アシスト力)を発生させる駆動源としての電動のモータ(図示せず)およびこのモータを含めた各種の電気的制御を行う制御部などが設けられたモータ駆動ユニット9と、前記モータに駆動用の電力を供給する二次電池からなるバッテリ装置20と、フレーム2に設けられて、バッテリ装置20を着脱自在に搭載するバッテリ搭載部12と、クランク7からの踏力に基づく人力駆動力やモータ駆動ユニット9からの補助駆動力を後輪4に伝達するチェーン11などを備えている。なお、電動自転車1におけるフレーム2や前輪3および後輪4、バッテリ搭載部12などの構成要素(電動自転車1におけるバッテリ装置20を除く箇所の構成要素)により、電動自転車本体が構成されている。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Reference numeral 1 in FIG. 1 denotes an electric bicycle equipped with the battery device for an electric bicycle according to the embodiment of the present invention. As shown in FIG. 1, the electric bicycle 1 includes a head pipe 2a, a front fork 2b, an upper pipe 2c, a lower pipe 2g, a hanger lug 2h (see FIG. 2), a standing pipe 2d, a chain stay 2e, a seat stay 2f, and the like. The metal frame 2, the front wheel 3 rotatably attached to the lower end of the front fork 2b, the rear wheel 4 rotatably attached to the rear end of the chain stay 2e, and the handle for changing the direction of the front wheel 3 5, a saddle 6, a crank 7 and a pedal 8 to which a manual driving force including a pedaling force is applied, an electric motor (not shown) as a driving source for generating an auxiliary driving force (assist force), and this motor A battery device comprising a motor drive unit 9 provided with a controller for performing various electrical controls, and a secondary battery for supplying driving power to the motor. 0, a battery mounting portion 12 provided on the frame 2 for detachably mounting the battery device 20, and a manual driving force based on the pedaling force from the crank 7 and an auxiliary driving force from the motor driving unit 9 to the rear wheel 4. A transmission chain 11 and the like are provided. The electric bicycle main body is configured by components (components other than the battery device 20 in the electric bicycle 1) such as the frame 2, the front wheel 3 and the rear wheel 4, and the battery mounting portion 12 in the electric bicycle 1.

図2に示すように、本実施の形態では、下パイプ2gの後端部と立パイプ2dの下端部とが接続されているハンガラグ2hと、チェーンステー2eの後端部との間には、金属製の支持ブラケット13が前後方向に延びる姿勢でハンガラグ2hの後部やチェーンステー2eの前端部に溶接されるなどして配設されている。この支持ブラケット13は、モータ駆動ユニット9を吊り下げた状態で支持しているとともに、バッテリ搭載部12やバッテリ装置20を上方に載せた状態で下方から支持しており、支持ブラケット13もフレーム2の一部として機能する。   As shown in FIG. 2, in the present embodiment, between the hanger lug 2h where the rear end portion of the lower pipe 2g and the lower end portion of the standing pipe 2d are connected, and the rear end portion of the chain stay 2e, The metal support bracket 13 is disposed by being welded to the rear part of the hanger lug 2h or the front end part of the chain stay 2e in a posture extending in the front-rear direction. The support bracket 13 supports the motor drive unit 9 in a suspended state, and supports the battery mounting portion 12 and the battery device 20 from below while placing the battery mounting portion 12 and the battery device 20 on the upper side. Act as part of

バッテリ搭載部12は、バッテリ装置20への電気的な接続端子(自転車本体側接続端子)12aなども設けられている基台部12bと、基台部12bの前端部近傍箇所から立パイプ2dの後面部に沿って上方に延びる立設部12cと、バッテリ装置20をロックする施錠装置などが設けられたロック装置14や電動自転車の補助駆動力の出力をオンオフする電源スイッチ15などが設けられたロック電源部12dや、基台部12bや支持ブラケット12などを側方から覆う搭載部カバー12e(図1参照)などを有している。そして、これらのバッテリ搭載部12の基台部12bと立設部12cとロック電源部12dにより囲まれる空間にバッテリ装置20が着脱自在に配設される。また、図3や図5、図6などに示すように、バッテリ装置20の下部には前方と後方とに突出する突部16が形成され、図3や図4に示すように、バッテリ搭載部12の基台部12bに設けられた凹部12fに突部16が嵌め込まれた状態で一側方から揺動されてバッテリ装置20がバッテリ搭載部12に装着される。   The battery mounting portion 12 includes a base portion 12b in which an electrical connection terminal (bicycle body side connection terminal) 12a and the like to the battery device 20 are provided, and a vertical pipe 2d from a location near the front end of the base portion 12b. A standing portion 12c extending upward along the rear surface portion, a lock device 14 provided with a locking device for locking the battery device 20, a power switch 15 for turning on / off the output of auxiliary driving force of the electric bicycle, and the like were provided. It has a lock power supply part 12d, a mounting part cover 12e (see FIG. 1) that covers the base part 12b, the support bracket 12 and the like from the side. The battery device 20 is detachably disposed in a space surrounded by the base portion 12b, the standing portion 12c, and the lock power source portion 12d of the battery mounting portion 12. Further, as shown in FIGS. 3, 5, 6, and the like, a protrusion 16 protruding forward and rearward is formed at the lower part of the battery device 20, and as shown in FIGS. 3 and 4, the battery mounting portion The battery device 20 is mounted on the battery mounting portion 12 by swinging from one side in a state where the protrusion 16 is fitted in the recess 12 f provided in the base portion 12 b of 12.

図5〜図8に示すように、バッテリ装置20は、複数の二次電池からなるバッテリ本体21と、これらのバッテリ本体21を一側方から支持するバッテリ支持材22と、これらのバッテリ本体21やバッテリ支持材22を収納する前後に2分割された(縦方向の分割線部に沿って2分割された)外装ケース23A、23Bと、外装ケース23A、23Bの高さ方向中央部寄り箇所の外周を覆う姿勢で着脱自在の中央筒状カバー24と、外装ケース23A、23Bの上部の外周を覆う姿勢で着脱自在の上部筒状カバー25と、バッテリ装置20の底面部に一部が露出するように配設されて、バッテリ搭載部12の接続端子(自転車本体側接続端子)12a(図2参照)に対して電気的に接続されるバッテリ側接続端子26と、当該電動自転車1以外の電気機器(例えば、スマートフォンなどの携帯電話装置など)に充電するためおよび当該バッテリ装置20を外部から充電するための充電用接続端子部(充電用USB(ユニバーサル・シリアル・バス Universal Serial Bus)接続端子部)27などにより構成されている。   As shown in FIGS. 5 to 8, the battery device 20 includes a battery main body 21 including a plurality of secondary batteries, a battery support member 22 that supports these battery main bodies 21 from one side, and these battery main bodies 21. The battery case 22 is divided into two parts before and after storing the battery support member 22 (divided into two along the vertical dividing line), and the outer case 23A, 23B near the central portion in the height direction. A part of the central cylindrical cover 24 that is removable in a posture that covers the outer periphery, a top cylindrical cover 25 that is removable in a posture that covers the outer periphery of the upper portions of the outer cases 23A and 23B, and a bottom surface portion of the battery device 20 are exposed. A battery-side connection terminal 26 that is electrically connected to a connection terminal (bicycle body-side connection terminal) 12a (see FIG. 2) of the battery mounting portion 12 and the electric bicycle 1 Charging connection terminal for charging an external electrical device (for example, a mobile phone device such as a smartphone) and charging the battery device 20 from the outside (charging USB (Universal Serial Bus) Connecting terminal portion) 27 and the like.

また、図7、図8に示すように、外装ケース23A、23Bの下部には、中央筒状カバー24の下端部が当接される段部(下方側が外側に広がる段部)からなる位置規制部23cが形成され、中央筒状カバー24の上方に、外装ケース23A、23Bの上部を覆う上部筒状カバー25が配設される。そして、上部筒状カバー25が後述する固定具を介して外装ケース23A、23Bに固定されることで、位置規制部23cと上部筒状カバー25との間に中央筒状カバー24が位置する状態で配設されている。なお、図7に示すように、この実施の形態では、外装ケース23A、23Bの下部同士が、これらを連結する固定具としての固定ねじ28により固定されているとともに、外装ケース23A、23Bの上部同士が、これらを連結する連結板(固定具)29および連結ねじ(固定具)30を介して固定(連結)されているが、固定構造はこれに限るものではない。   Further, as shown in FIGS. 7 and 8, the position regulation is made up of a stepped portion (stepped portion whose lower side extends outward) with which the lower end portion of the central cylindrical cover 24 is in contact with the lower part of the outer case 23A, 23B. A portion 23c is formed, and an upper cylindrical cover 25 that covers the upper portions of the exterior cases 23A and 23B is disposed above the central cylindrical cover 24. And the state where the central cylindrical cover 24 is located between the position control part 23c and the upper cylindrical cover 25 because the upper cylindrical cover 25 is fixed to the exterior cases 23A and 23B via fixtures described later. It is arranged by. As shown in FIG. 7, in this embodiment, the lower portions of the outer cases 23A and 23B are fixed to each other by fixing screws 28 as fixtures for connecting them, and the upper portions of the outer cases 23A and 23B. They are fixed (connected) via a connecting plate (fixing tool) 29 and a connecting screw (fixing tool) 30 that connect them, but the fixing structure is not limited to this.

ここで、図7、図8に示すように、中央筒状カバー24および上部筒状カバー25は、2つに分割された外装ケース23A、23Bの外周を跨る姿勢で配設されている。また、バッテリ装置20は長方体形状とされ、また、外装ケース23A、23Bも互いに組合わされた状態で平面視矩形形状とされている。一方、中央筒状カバー24は、前辺部24a、左辺部、後辺部24bおよび右辺部が湾曲した角部で接続された状態で上下に延びる角筒形状とされているとともに弾性変形可能な状態で樹脂により一体成形されている。そして、中央筒状カバー24は単体で外力が作用していない状態では、図9(a)に示すように、平面視して少なくとも対となった対向する辺(この実施の形態では、前辺部24aと後辺部24b)同士の中央側が窪む形状とされている。外装ケース23A、23Bは、角部は湾曲しているが、各辺部は平面視して直線状とされており、外装ケース23A、23Bの外周に中央筒状カバー24を装着した際に、図9(b)に簡略的に示すように、中央筒状カバー24の前辺部24aと後辺部24bとが直線状に変形して外装ケース23A、23Bに密着するよう構成されている。   Here, as shown in FIGS. 7 and 8, the central cylindrical cover 24 and the upper cylindrical cover 25 are disposed in a posture straddling the outer periphery of the outer casings 23 </ b> A and 23 </ b> B divided into two. Further, the battery device 20 has a rectangular shape, and the outer cases 23A and 23B have a rectangular shape in plan view in a state where they are combined with each other. On the other hand, the central cylindrical cover 24 has a rectangular tube shape that extends vertically with the front side portion 24a, the left side portion, the rear side portion 24b, and the right side portion connected by curved corners and is elastically deformable. In this state, it is integrally molded with resin. In the state in which the central cylindrical cover 24 alone is not subjected to external force, as shown in FIG. 9 (a), at least a pair of opposing sides in plan view (in this embodiment, the front side The central side between the portion 24a and the rear side portion 24b) is recessed. The outer cases 23A and 23B are curved at the corners, but the sides are straight in plan view, and when the central cylindrical cover 24 is attached to the outer periphery of the outer cases 23A and 23B, As simply shown in FIG. 9B, the front side portion 24a and the rear side portion 24b of the central cylindrical cover 24 are linearly deformed so as to be in close contact with the exterior cases 23A and 23B.

なお、図5、図7などにおける27aは、充電用接続端子部(充電用USB接続端子部)27を覆う弾性変形可能な端子部カバーで、当該電動自転車1以外の電気機器を充電する際に、前記電気機器に接続されたUSB端子を充電用接続端子部(充電用USB接続端子部)27に接続する際に開くことが可能に構成されている。また、23dは、バッテリ装置20の上面部に形成され、バッテリ搭載部12のロック装置14より突出自在とされたロック体(図示せず)に対して係合離脱する被ロック部である。また、この実施の形態では、外装ケース23A、23Bの上部同士を連結する連結板(固定具)29に、上部筒状カバー25を外装ケース23A、23Bに固定する樹脂製連結具(いわゆるプッシュリベット)31が連結される被連結部29bが形成されている。また、外装ケース23A、23B、中央筒状カバー24、上部筒状カバー25は、それぞれ樹脂で一体成形されている。また、図7などにおける32は外装ケース23A、23Bの底面に貼り付けられる底面シール材であり、必要に応じて設けられていればよい。   5 and 7 is an elastically deformable terminal portion cover that covers the charging connection terminal portion (charging USB connection terminal portion) 27. When charging an electric device other than the electric bicycle 1, The USB terminal connected to the electrical device can be opened when connected to the charging connection terminal part (charging USB connection terminal part) 27. Reference numeral 23 d denotes a locked portion that is formed on the upper surface portion of the battery device 20 and engages and disengages from a lock body (not shown) that can be protruded from the lock device 14 of the battery mounting portion 12. In this embodiment, a connecting plate (fixing tool) 29 that connects the upper parts of the outer cases 23A and 23B is connected to a resin connecting tool (so-called push rivet) that fixes the upper cylindrical cover 25 to the outer cases 23A and 23B. ) 31 to be connected is formed. Further, the outer cases 23A and 23B, the central cylindrical cover 24, and the upper cylindrical cover 25 are each integrally formed of resin. Moreover, 32 in FIG. 7 etc. is the bottom face sealing material affixed on the bottom face of exterior case 23A, 23B, and should just be provided as needed.

上記構成によれば、バッテリ本体21が外装ケース23A、23Bだけでなく中央筒状カバー24や上部筒状カバー25によっても覆われて保護される。これにより、当該バッテリ装置20を、電動自転車本体のバッテリ搭載部12から取り外して充電箇所に持ち込む際に、当該バッテリ装置20を落とすなどして外力を受けた場合でも、中央筒状カバー24や上部筒状カバー25の一部が損傷することがあっても、外装ケース23A、23Bが損傷してしまうことが殆どなくなり、バッテリ装置20として極めて良好な信頼性を得ることができる。   According to the above configuration, the battery body 21 is covered and protected not only by the outer cases 23A and 23B but also by the central cylindrical cover 24 and the upper cylindrical cover 25. Thus, when the battery device 20 is removed from the battery mounting portion 12 of the electric bicycle main body and brought into a charging location, even if the battery device 20 is subjected to external force such as dropping, the central cylindrical cover 24 or the upper portion Even if a part of the cylindrical cover 25 is damaged, the outer cases 23A and 23B are hardly damaged, and extremely good reliability as the battery device 20 can be obtained.

また、上記構成によれば、中央筒状カバー24や上部筒状カバー25が着脱自在であるため、中央筒状カバー24や上部筒状カバー25を取り外して、中央筒状カバー24や上部筒状カバー25の色やデザインなどを自分好みに変更することを容易に行うことができる。なお、当然ながら、中央筒状カバー24だけを変更することも容易に行うことができる。また、外部に露出する中央筒状カバー24や上部筒状カバー25が汚れたり、損傷したりした際には、中央筒状カバー24(または上部筒状カバー25)だけを交換するだけで済み、バッテリ装置全体を交換する場合と比較して、交換費用が極めて安価となる。   Further, according to the above configuration, since the central cylindrical cover 24 and the upper cylindrical cover 25 are detachable, the central cylindrical cover 24 and the upper cylindrical cover 24 are removed by removing the central cylindrical cover 24 and the upper cylindrical cover 25. It is possible to easily change the color and design of the cover 25 to your liking. Of course, only the central cylindrical cover 24 can be changed easily. When the central cylindrical cover 24 or the upper cylindrical cover 25 exposed to the outside is soiled or damaged, it is only necessary to replace the central cylindrical cover 24 (or the upper cylindrical cover 25). Compared to the case where the entire battery device is replaced, the replacement cost is extremely low.

また、上記構成によれば、外装ケース23A、23Bが複数(この実施の形態では2つ)に分割されて互いに組合わされ、中央筒状カバー24や上部筒状カバー25は、これら複数の外装ケース23A、23Bの外周を跨る姿勢で配設されている。したがって、例え、当該バッテリ装置20を落とすなどして外力を受けて、外装ケース23A、23Bの接合部同士が互いに分離する方向に力が加えられた場合でも、外装ケース23A、23Bの分離方向への移動が中央筒状カバー24や上部筒状カバー25により阻止され、外装ケース23A、23Bの接合部の隙間から埃や雨水などが侵入することを防止でき、バッテリ装置20として極めて良好な信頼性を得ることができる。   Further, according to the above configuration, the outer casings 23A and 23B are divided into a plurality (two in this embodiment) and combined with each other, and the central cylindrical cover 24 and the upper cylindrical cover 25 are connected to the plurality of outer casings. It is arrange | positioned with the attitude | position which straddles the outer periphery of 23A, 23B. Therefore, even when the external force is received by dropping the battery device 20 or the like and the force is applied in the direction in which the joint portions of the outer case 23A and 23B are separated from each other, the outer case 23A and 23B are separated. Is prevented by the central cylindrical cover 24 and the upper cylindrical cover 25, and dust and rainwater can be prevented from entering through the gaps between the joint portions of the outer cases 23A and 23B, and the battery device 20 has extremely good reliability. Can be obtained.

また、外装ケース23A、23Bの接合部の隙間から埃や雨水などが侵入することを中央筒状カバー24や上部筒状カバー25により防止できるため、外装ケース23A、23Bの接合部に、従来設けられていたパッキンなどのシール材を配設しなくても済み、製造コストの低減化を図ることができる。なお、外装ケース23A、23Bの接合部にパッキンなどのシール材を設けてもよいが、この場合でも、パッキンや接続部の構造を、従来のものと比較して簡素にできるため、製造コストの低減化を図ることができる。   In addition, dust and rainwater can be prevented from entering through the gap between the joint portions of the outer cases 23A and 23B by the central cylindrical cover 24 and the upper cylindrical cover 25, so that it is conventionally provided at the joint portions of the outer cases 23A and 23B. It is not necessary to provide a sealing material such as packing that has been used, and the manufacturing cost can be reduced. Note that a sealing material such as packing may be provided at the joint between the outer cases 23A and 23B. However, even in this case, the structure of the packing and the connecting portion can be simplified as compared with the conventional one, which reduces the manufacturing cost. Reduction can be achieved.

また、上記構成によれば、図9(a)に示すように、中央筒状カバー24を弾性変形可能でかつ角筒形状とするとともに、平面視して少なくとも対となった対向する辺(この実施の形態では、前辺部24aと後辺部24b)同士の中央側が窪む形状とすることにより、図9(b)に簡略的に示すように、中央筒状カバー24を外装ケース23A、23Bに被せるだけで密着した状態で中央筒状カバー24を装着でき、シール性能をさらに向上させることができる。   Further, according to the above configuration, as shown in FIG. 9A, the central cylindrical cover 24 is elastically deformable and has a rectangular cylindrical shape, and at least a pair of opposing sides (this) in plan view. In the embodiment, the central side cover 24A and the rear side part 24b) are formed in a shape in which the central sides are recessed, so that the central cylindrical cover 24 is attached to the outer case 23A, as shown in a simplified manner in FIG. The central cylindrical cover 24 can be attached in a state of being in close contact with the cover 23B, and the sealing performance can be further improved.

また、上記構成によれば、外装ケース23A、23Bの下部に段部などの位置規制部23cを形成し、位置規制部23cと上部筒状カバー25との間に中央筒状カバー24を配設することで、外装ケース23A、23Bの下部以外の箇所を中央筒状カバー24と上部筒状カバー25とにより良好に覆うことができ、シール性能がさらに向上する。   Further, according to the above configuration, the position restricting portion 23c such as a stepped portion is formed below the outer cases 23A and 23B, and the central tubular cover 24 is disposed between the position restricting portion 23c and the upper tubular cover 25. By doing so, locations other than the lower portions of the exterior cases 23A and 23B can be satisfactorily covered by the central cylindrical cover 24 and the upper cylindrical cover 25, and the sealing performance is further improved.

なお、上記実施の形態では、中央筒状カバー24や上部筒状カバー25を樹脂製として、中央筒状カバー24の製造コスト、ひいてはバッテリ装置20の製造コストを安価に済ますことができるが、これに限るものではなく、例えば中央筒状カバー24(または中央筒状カバー24および上部筒状カバー25)を樹脂製に代えて金属製としてもよい。この場合には、中央筒状カバー24を樹脂製の成形品として多数製造する場合よりも、単価が高くなる短所はあるが、バッテリ装置20の内部に発熱量の大きい部品(バッテリや制御用半導体部品)などを配設している場合に、バッテリ本体21など外装ケース23A、23Bに収納されている内部からの発熱量が多い場合でも、金属製の中央筒状カバー24を通して内部の熱を良好に発散させることができて、バッテリ装置20としての頼性が向上する。   In the above embodiment, the central cylindrical cover 24 and the upper cylindrical cover 25 are made of resin, so that the manufacturing cost of the central cylindrical cover 24, and hence the manufacturing cost of the battery device 20, can be reduced. For example, the central cylindrical cover 24 (or the central cylindrical cover 24 and the upper cylindrical cover 25) may be made of metal instead of resin. In this case, there is a disadvantage that the unit price is higher than in the case where a large number of the central cylindrical cover 24 is manufactured as a resin-made molded product, but there is a component that generates a large amount of heat (such as a battery or a control semiconductor) inside the battery device 20. In the case where a large amount of heat is generated from the inside of the case 23A, 23B such as the battery main body 21, the internal heat is good through the metal central cylindrical cover 24. The reliability as the battery device 20 is improved.

また、上記構成によれば、バッテリ装置20に、当該電動自転車1以外の電気機器に充電するためおよび当該バッテリ装置20を充電するための充電用接続端子部27を設けたので、この充電用接続端子部27を用いて、当該電動自転車1以外の電気機器(例えば、携帯電話装置など)を充電したり、当該バッテリ装置20を外部から充電したりすることができる。これにより、例えば、携帯電話装置などの電気機器を充電するための予備のバッテリ装置などを別途に所持するなどしなくても済み、利便性が向上する。また、当該バッテリ装置20を充電する専用の充電装置が設けられていない自宅外などの環境でも、USB端子などの電力を供給可能な端子を接続できる場合に、当該バッテリ装置20を充電できて、利便性が向上する。なお、充電用接続端子部27は、必ずしも、当該電動自転車1以外の電気機器(例えば、携帯電話装置など)を充電する機能と、当該バッテリ装置20を外部から充電する機能との両方の機能に対応しなくてもよく、片方だけの機能を有していてもよい。   Moreover, according to the said structure, since the connection terminal part 27 for charge for charging the electric equipment other than the said electric bicycle 1 and charging the said battery apparatus 20 was provided in the battery apparatus 20, this connection for charging The terminal unit 27 can be used to charge an electric device other than the electric bicycle 1 (for example, a mobile phone device) or to charge the battery device 20 from the outside. Thereby, for example, it is not necessary to separately have a spare battery device or the like for charging an electric device such as a mobile phone device, and convenience is improved. Further, even in an environment such as outside the home where a dedicated charging device for charging the battery device 20 is not provided, when a terminal capable of supplying power such as a USB terminal can be connected, the battery device 20 can be charged, Convenience is improved. Note that the charging connection terminal portion 27 necessarily has both a function of charging an electric device other than the electric bicycle 1 (for example, a mobile phone device) and a function of charging the battery device 20 from the outside. It does not need to correspond, and may have only one function.

また、上記実施の形態では、上部筒状カバー25により、外装ケース23A、23Bの上部における外周箇所を覆っている場合を図示したが、外装ケース23A、23Bの上部における上面部の少なくとも一部も上部筒状カバー25により覆うよう構成してもよい。また、中央筒状カバー24と上部筒状カバー25とを一体化して、1つの筒状カバーにより外装ケース23A、23Bの外周を覆ったり、筒状カバーを上下に3つ以上分割して、これらの筒状カバーにより外装ケース23A、23Bの外周を覆ったりしてもよい。   Further, in the above embodiment, the case where the upper cylindrical cover 25 covers the outer peripheral portion at the upper part of the outer case 23A, 23B is illustrated, but at least part of the upper surface part at the upper part of the outer case 23A, 23B is also illustrated. You may comprise so that it may cover with the upper cylindrical cover 25. FIG. Further, the central cylindrical cover 24 and the upper cylindrical cover 25 are integrated to cover the outer periphery of the outer case 23A, 23B with one cylindrical cover, or the cylindrical cover is divided into three or more vertically. The outer periphery of the outer case 23A, 23B may be covered with a cylindrical cover.

また、上記実施の形態では、筒状カバーとして、上部筒状カバー25と中央筒状カバー24とを設けて、上部筒状カバー25を外装ケース23A、23Bに固定するよう構成した場合を述べた。しかしながら、これに代えて、筒状カバーとして、上部筒状カバー25に代えて、外装ケース23A、23Bに対して固定可能に構成した下部筒状カバーを設けてもよい。この場合には、外装ケース23A、23Bの上部は外部に露出させるとともに、外装ケース23A、23Bの上部の下縁部に段部からなる位置規制部を形成し、中央筒状カバー24を装着した際にこの中央筒状カバー24の上縁部が、外装ケース23A、23Bの前記位置規制部に当接して、位置規制されるよう構成する。   In the above-described embodiment, the case where the upper cylindrical cover 25 and the central cylindrical cover 24 are provided as the cylindrical cover and the upper cylindrical cover 25 is fixed to the exterior cases 23A and 23B has been described. . However, instead of this, instead of the upper cylindrical cover 25, a lower cylindrical cover configured to be fixable to the exterior cases 23A and 23B may be provided as the cylindrical cover. In this case, the upper portions of the outer cases 23A and 23B are exposed to the outside, a position restricting portion including a step portion is formed at the lower edge of the upper portions of the outer cases 23A and 23B, and the central cylindrical cover 24 is attached. In this case, the upper edge portion of the central cylindrical cover 24 abuts on the position restricting portions of the outer cases 23A and 23B so that the position is restricted.

この構成によれば、下部筒状カバーを外装ケース23A、23Bから取り外した状態で、中央筒状カバー24を持った際に、中央筒状カバー24からバッテリ装置20(下部筒状カバー以外のバッテリ装置20の本体部分)が下方に抜け落ちたりすることがないので、信頼性が向上する利点がある。すなわち、上記実施の形態では、バッテリ装置20を電動自転車本体から取り外すとともに、上部筒状カバー25を取り外した状態で、中央筒状カバー24だけを持つと、この際に、中央筒状カバー24からバッテリ装置20(上部筒状カバー25および中央筒状カバー24以外のバッテリ装置20の本体部分)が下方に抜け落ちるおそれがあるが、このようなことを防止できる利点がある。なお、これに代えて、筒状カバーとして、上部筒状カバー25と中央筒状カバー24と下部筒状カバーとを設けて、筒状カバーの少なくとも1つを交換する際に、まず、下部筒状カバーを外装ケース23A、23Bから取り外すよう構成してもよい。   According to this configuration, when the central cylindrical cover 24 is held with the lower cylindrical cover removed from the outer cases 23A and 23B, the battery device 20 (battery other than the lower cylindrical cover is removed) from the central cylindrical cover 24. Since the main body portion of the apparatus 20 does not fall down downward, there is an advantage that the reliability is improved. That is, in the above embodiment, when the battery device 20 is removed from the electric bicycle main body and the upper cylindrical cover 25 is removed and only the central cylindrical cover 24 is held, There is a possibility that the battery device 20 (the main body portion of the battery device 20 other than the upper cylindrical cover 25 and the central cylindrical cover 24) may fall down, but there is an advantage that this can be prevented. Instead of this, when the upper cylindrical cover 25, the central cylindrical cover 24, and the lower cylindrical cover are provided as the cylindrical cover and at least one of the cylindrical covers is replaced, first, the lower cylinder is replaced. You may comprise so that a shape-like cover may be removed from exterior case 23A, 23B.

また、上記実施の形態では、外装ケース23A、23Bが2分割されている場合を述べたが、外装ケースが3分割以上されている場合でも同様の構成を適用できることはもちろんである。   In the above embodiment, the case where the outer cases 23A and 23B are divided into two parts has been described, but it is needless to say that the same configuration can be applied even when the outer case is divided into three or more parts.

本発明は、人の踏力(人力駆動力)にモータによる補助駆動力を付加可能な電動自転車のバッテリ装置だけでなく、モータの駆動力のみによって走行可能ないわゆる自走式の電動自転車のバッテリ装置などにも適用可能である。   The present invention is not limited to a battery device for an electric bicycle that can add an auxiliary driving force by a motor to a person's pedaling force (human power driving force), but also a battery device for a so-called self-propelled electric bicycle that can run only by the driving force of the motor. It is also applicable to.

1 電動自転車
2 フレーム
3 前輪
4 後輪
9 モータ駆動ユニット
12 バッテリ搭載部
20 バッテリ装置(電動自転車用バッテリ装置)
21 バッテリ本体
23A、23B 外装ケース
24 中央筒状カバー(筒状カバー)
25 上部筒状カバー(筒状カバー)
27 充電用接続端子部
DESCRIPTION OF SYMBOLS 1 Electric bicycle 2 Frame 3 Front wheel 4 Rear wheel 9 Motor drive unit 12 Battery mounting part 20 Battery device (battery device for electric bicycles)
21 Battery body 23A, 23B Exterior case 24 Central cylindrical cover (cylindrical cover)
25 Upper cylindrical cover (tubular cover)
27 Connecting terminal for charging

Claims (6)

電動自転車本体に着脱可能に搭載される電動自転車用バッテリ装置であって、バッテリ本体を収納した外装ケースと、外装ケースの外周を覆う姿勢で着脱自在の筒状カバーとを備え
筒状カバーが、上下方向に複数設けられ、
筒状カバーとして、外装ケースの中央部外周を覆う中央筒状カバーと、外装ケースの上部外周を覆う上部筒状カバーとを有し、外装ケースの下部に、中央筒状カバーの下端部が当接される段部などの位置規制部が形成され、中央筒状カバーの上方に上部筒状カバーが配設され、上部筒状カバーが外装ケースに固定されることで、前記位置規制部と上部筒状カバーとの間に中央筒状カバーが位置する状態で配設されている
ことを特徴とする電動自転車用バッテリ装置。
A battery device for an electric bicycle that is detachably mounted on the electric bicycle main body, and includes an outer case that houses the battery main body, and a cylindrical cover that is detachable in a posture that covers the outer periphery of the outer case ,
A plurality of cylindrical covers are provided in the vertical direction,
The cylindrical cover includes a central cylindrical cover that covers the outer periphery of the central part of the outer case, and an upper cylindrical cover that covers the outer periphery of the upper part of the outer case, and the lower end of the central cylindrical cover contacts the lower part of the outer case. A position restricting portion such as a stepped portion is formed, an upper tubular cover is disposed above the central tubular cover, and the upper tubular cover is fixed to the exterior case, so that the position restricting portion and the upper portion are disposed. A battery device for an electric bicycle , wherein the central cylindrical cover is disposed between the cylindrical cover and the cylindrical cover .
外装ケースは複数に分割されて互いに組合わされ、
前記筒状カバーは、これら複数の外装ケースの外周を跨る姿勢で配設されていることを特徴とする請求項1に記載の電動自転車用バッテリ装置。
The outer case is divided into multiple pieces and combined with each other.
The battery device for an electric bicycle according to claim 1, wherein the cylindrical cover is disposed in a posture straddling the outer periphery of the plurality of exterior cases.
外装ケースは互いに組合わされた状態で平面視矩形形状とされ、筒状カバーは単数または複数設けられ、少なくとも一部の筒状カバーは、弾性変形可能でかつ角筒形状とされているとともに平面視して少なくとも対となった対向する辺同士の中央側が窪む形状とされていることを特徴とする請求項2に記載の電動自転車用バッテリ装置。   The outer case has a rectangular shape in plan view when combined with each other, and one or a plurality of cylindrical covers are provided. At least a part of the cylindrical cover is elastically deformable and is in the shape of a rectangular tube, and in plan view. 3. The battery device for an electric bicycle according to claim 2, wherein at least the center side of the opposing sides that are paired is recessed. 前記筒状カバーが金属製であることを特徴とする請求項1〜の何れか1項に記載の電動自転車用バッテリ装置。 The battery device for an electric bicycle according to any one of claims 1 to 3 , wherein the cylindrical cover is made of metal. 当該電動自転車以外の電気機器に充電するためおよび当該バッテリ装置を充電するための少なくとも一方の機能を行うための充電用接続端子部が設けられていることを特徴とする請求項1〜の何れか1項に記載の電動自転車用バッテリ装置。 Any claim 1-4, characterized in that the charging connection terminal portion for performing at least one of functions for charging and the battery device for charging the electrical device other than the electric bicycle is provided The battery device for electric bicycles of Claim 1. 請求項1〜の何れか1項に記載の電動自転車用バッテリ装置を備えたことを特徴とする電動自転車。 An electric bicycle comprising the battery device for an electric bicycle according to any one of claims 1 to 5 .
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