JP4595308B2 - Electric wheelchair electrical connection structure - Google Patents

Electric wheelchair electrical connection structure Download PDF

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JP4595308B2
JP4595308B2 JP2003352088A JP2003352088A JP4595308B2 JP 4595308 B2 JP4595308 B2 JP 4595308B2 JP 2003352088 A JP2003352088 A JP 2003352088A JP 2003352088 A JP2003352088 A JP 2003352088A JP 4595308 B2 JP4595308 B2 JP 4595308B2
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electrode
connector
lithium ion
ion battery
positive electrode
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JP2005116461A (en
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孝一 荒川
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Aisin Corp
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Aisin Seiki Co Ltd
Aisin Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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Description

本発明は、電動車椅子用の電気接続構造に関し、特にモータ制御部側のコネクタと電池収納ケースとの電気的接続構造に関する。   The present invention relates to an electrical connection structure for an electric wheelchair, and more particularly to an electrical connection structure between a connector on a motor control unit side and a battery storage case.

電動車椅子のモータの電源としては、特許文献１に明示されているように、従来から、リチウムイオン電池やニッケル水素電池が採用されている。実際には、車椅子のフレームに固定されたケースの中に、リチウムイオン電池及びニッケル水素電池の何れか一方が装填される。
特開２０００−３４０５０号公報 As a power source for a motor of an electric wheelchair, a lithium ion battery or a nickel metal hydride battery has been conventionally used as explicitly disclosed in Patent Document 1. Actually, either a lithium ion battery or a nickel metal hydride battery is loaded in a case fixed to a wheelchair frame.
JP 2000-34050 A

しかして、リチウムイオン電池はニッケル水素電池に比べて、持続時間が短いので、ケース内にリチウムイオン電池を装填した場合、充電器への接続頻度が多くなり、その改善が要請されていた。   Thus, since the lithium ion battery has a shorter duration than the nickel metal hydride battery, when the lithium ion battery is loaded in the case, the frequency of connection to the charger increases, and the improvement thereof has been demanded.

それ故に、本発明は、かような不具合が惹起されることがない、電動車椅子の電気接続構造を提供することを、その課題とする。   Therefore, an object of the present invention is to provide an electric connection structure for an electric wheelchair in which such a problem is not caused.

上記の課題を解決するために講じた技術的手段は、「リチウムイオン電池を収めたケースに対し、充電時に前記ケースに設けられた電極部に充電装置につながる第１コネクタが接続されて、前記リチウムイオン電池の充電が成され、車椅子の駆動をモータ制御部により行う第２コネクタに接続交換することにより、前記モータ制御部に給電が成されるようにした電動車椅子の電気接続構造において、
前記電極部は正電極、負電極および付加電極を有し、前記正電極は前記リチウムイオン電池の電池セルのプラス側に接続され、前記負電極はスイッチング部を有する制御回路を介して前記電池セルのマイナス側に接続され、前記電極部に前記第２コネクタが接続された場合に、前記負電極と前記付加電極が短絡することにより前記スイッチング部が動作して、モータからの逆起電力により前記リチウムイオン電池が充電されるようにした電動車椅子の電気接続構造」である。
この場合、前記第２コネクタは、前記ケース側に設けられた前記負電極と前記付加電極とを電気的に接続する電極を有していると良い。
Technical means taken to solve the aforementioned problem, with respect to the case of matches to "lithium ion battery, a first connector is connected leading to the charging device to the electrode portion provided on the case at the time of charging, the In the electrical connection structure of the electric wheelchair in which charging of the lithium ion battery is performed and the power supply is made to the motor control unit by exchanging the connection to the second connector for driving the wheelchair by the motor control unit,
The electrode part has a positive electrode, a negative electrode and an additional electrode, the positive electrode is connected to the positive side of the battery cell of the lithium ion battery, and the negative electrode is connected to the battery cell via a control circuit having a switching part. When the second connector is connected to the electrode part, the switching part is operated by short-circuiting the negative electrode and the additional electrode, and the electromotive force from the motor causes the electromotive force to An electric connection structure of an electric wheelchair in which a lithium ion battery is charged .
In this case, the second connector may include an electrode that electrically connects the negative electrode and the additional electrode provided on the case side.

本発明によれば、逆起電力による充電が可能となり、充電器への接続頻度を低減することが出来る。
 According to the present invention, charging by back electromotive force is possible, and the connection frequency to the charger can be reduced.

以下、本発明を実施するための最良の形態を、図面を基に説明する。   The best mode for carrying out the present invention will be described below with reference to the drawings.

図１に示されるように、電動車椅子用バッテリー収納ケース１０は、筐体１２を備える。筐体１２の凹部１４の底面には、電極部２０が形成される。しかして電極部２０は、等間隔に列設された４個の電極（負電極２２と補助電極２４と第１正電極２６と第２正電極２８）及び負電極２２に近接配置の付加電極２０Ｘとから構成される。負電極２２と補助電極２４との間、補助電極２４と第１正電極２６との間、第１正電極２６と第２正電極２８との間に位置すべく、筐体１２の凹部１４の底面には、夫々、溝ＧＲ１、溝ＧＲ２及び溝ＧＲ３が、形成されている。   As shown in FIG. 1, the battery storage case 10 for an electric wheelchair includes a housing 12. An electrode portion 20 is formed on the bottom surface of the recess 14 of the housing 12. Thus, the electrode section 20 includes four electrodes (the negative electrode 22, the auxiliary electrode 24, the first positive electrode 26, and the second positive electrode 28) arranged at equal intervals, and the additional electrode 20X disposed close to the negative electrode 22. It consists of. The concave portion 14 of the housing 12 is positioned between the negative electrode 22 and the auxiliary electrode 24, between the auxiliary electrode 24 and the first positive electrode 26, and between the first positive electrode 26 and the second positive electrode 28. On the bottom surface, a groove GR1, a groove GR2, and a groove GR3 are formed, respectively.

図２には、筐体１２内にニッケル水素電池３０を装填したときの、ニッケル水素電池３０と充電装置（例えば、充電器）４０との接続関係が、模式的に示される。ニッケル水素電池３０は、電池セル３２、保護回路３４及び電池温度検出のサーミスタ３６を備える。電池セル３２のプラス側は第２正電極２８に接続され、電池セル３２のマイナス側は保護回路３４を介して負電極２２に接続される。補助電極２４と負電極２２とがサーミスタ３６を介して接続される。付加電極２０Ｘは、アイドル電極となっており、ニッケル水素電池３０とは電気的接続関係にはない。尚、筐体１２に付加電極２０Ｘを設けるのは、筐体１２をニッケル水素電池３０とリチウムイオン電池とで共通化するためであるので、筐体１２をニッケル水素電池３０を装填する場合に限定するのであれば、付加電極２０Ｘを設ける必要はない。
FIG. 2 schematically shows the connection relationship between the nickel metal hydride battery 30 and the charging device (for example, charger) 40 when the nickel hydride battery 30 is loaded in the housing 12. The nickel metal hydride battery 30 includes a battery cell 32, a protection circuit 34, and a thermistor 36 for battery temperature detection. The positive side of the battery cell 32 is connected to the second positive electrode 28, and the negative side of the battery cell 32 is connected to the negative electrode 22 via the protection circuit 34. The auxiliary electrode 24 and the negative electrode 22 are connected via the thermistor 36. The additional electrode 20 </ b> X is an idle electrode and is not electrically connected to the nickel metal hydride battery 30. The additional electrode 20 </ b> X is provided on the housing 12 because the housing 12 is shared by the nickel metal hydride battery 30 and the lithium ion battery, and is limited to the case where the housing 12 is loaded with the nickel metal hydride battery 30. If so, it is not necessary to provide the additional electrode 20X.

充電装置４０は、周知の構造を有しており、充電装置４０から延出するコネクタ４２の電極部５０は、筐体１２の電極部２０と同様の構造となっており、４個の電極：負電極５２と補助電極５４と第１正電極５６と第２正電極５８とから構成される。また、負電極５２と補助電極５４との間、補助電極５４と第１正電極５６との間及び第１正電極５６と第２正電極５８との間には、夫々、絶縁リブ５０Ｒ１、５０Ｒ２及び５０Ｒ３が、コネクタ４２の先端部と一体形成されている。しかして、第１正電極５６のみがアイドル端子とされ、負電極５２、補助電極５４及び第２正電極５８が、充電装置４０の内部の対応個所に接続されている。そして、充電装置４０側のコネクタ４２の電極部５０が、図示されるように、筐体１２の凹部１４内において、筐体１２側の電極部２０と着脱自在に接続されとき、充電装置４０側のコネクタ４２の電極部５０の負電極５２、補助電極５４、第１電極５４及び第２正電極５８が筐体１２側の電極部２０の負電極２２、補助電極２４、第１正電極２６及び第２正電極２８に、夫々、接触すると共に、コネクタ４２の絶縁リブ４２Ｒ１、４２Ｒ２及び４２Ｒ３が、夫々、筐体１２の凹部１４の底面の溝ＧＲ１、溝ＧＲ２及び溝ＧＲ３に嵌挿される。   The charging device 40 has a well-known structure, and the electrode portion 50 of the connector 42 extending from the charging device 40 has the same structure as the electrode portion 20 of the housing 12, and has four electrodes: The negative electrode 52, the auxiliary electrode 54, the first positive electrode 56, and the second positive electrode 58 are configured. Insulating ribs 50R1 and 50R2 are provided between the negative electrode 52 and the auxiliary electrode 54, between the auxiliary electrode 54 and the first positive electrode 56, and between the first positive electrode 56 and the second positive electrode 58, respectively. And 50R3 are integrally formed with the tip of the connector 42. Accordingly, only the first positive electrode 56 is an idle terminal, and the negative electrode 52, the auxiliary electrode 54, and the second positive electrode 58 are connected to corresponding portions inside the charging device 40. When the electrode portion 50 of the connector 42 on the charging device 40 side is detachably connected to the electrode portion 20 on the housing 12 side in the recess 14 of the housing 12 as shown in the drawing, the charging device 40 side The negative electrode 52, the auxiliary electrode 54, the first electrode 54, and the second positive electrode 58 of the electrode portion 50 of the connector 42 are the negative electrode 22, the auxiliary electrode 24, the first positive electrode 26, and the like of the electrode portion 20 on the housing 12 side. Insulating ribs 42R1, 42R2, and 42R3 of the connector 42 are inserted into the grooves GR1, GR2, and GR3 on the bottom surface of the recess 14 of the housing 12, respectively, while making contact with the second positive electrode 28, respectively.

かような装填がなされた後、充電装置４０がオンされると、筐体１２側の電極部２０の負電極２２、補助電極２４及び第２正電極２８が、夫々、充電装置４０側のコネクタ４２の電極部５０の負電極５２、補助電極５４及び第２正電極５８を介して、充電装置４０の内部の対応個所と通電状態となり、電池セル３２が充電される。   When the charging device 40 is turned on after such loading, the negative electrode 22, the auxiliary electrode 24, and the second positive electrode 28 of the electrode unit 20 on the housing 12 side are respectively connected to the connector on the charging device 40 side. Through the negative electrode 52, the auxiliary electrode 54, and the second positive electrode 58 of the electrode unit 50, the corresponding portion inside the charging device 40 is energized, and the battery cell 32 is charged.

充電完了後、充電装置４０がオンされたまま（つまり充電装置４０が図示されない電源との通電状態が維持されたまま）コネクタ４２が筐体１２の凹部１４から抜かれた場合、図示されない車椅子の金属製のフレームにコネクタ４２が接触したとしても、コネクタ４２の絶縁リブ４２Ｒ１、４２Ｒ２及び４２Ｒ３が、金属フレームによる、負電極５２と補助電極５４との間の導通、補助電極５４と第１正電極５６との間の導通及び第１正電極５６と第２正電極５８との間の導通を、夫々阻止するので、充電装置４０の内部回路の短絡が未然に防止される。   After the charging is completed, when the connector 42 is pulled out from the recess 14 of the housing 12 while the charging device 40 is turned on (that is, the charging device 40 is kept energized with a power source not shown), the metal of the wheelchair (not shown) Even if the connector 42 contacts the made frame, the insulating ribs 42R1, 42R2 and 42R3 of the connector 42 are electrically connected between the negative electrode 52 and the auxiliary electrode 54 by the metal frame, and the auxiliary electrode 54 and the first positive electrode 56. And conduction between the first positive electrode 56 and the second positive electrode 58 are prevented, respectively, so that a short circuit of the internal circuit of the charging device 40 is prevented.

しかして、かような電極間の導通阻止のためには、絶縁リブ４２Ｒ１（４２Ｒ２及び４２Ｒ３についても同様）の突出度（図１の右方向）及び高さ（図１の上下方向）が、両側の電極よりも大きく設定される必要がある。   Therefore, in order to prevent conduction between the electrodes, the protrusion degree (right direction in FIG. 1) and height (up and down direction in FIG. 1) of the insulating rib 42R1 (the same applies to 42R2 and 42R3) are determined on both sides. It is necessary to set it larger than the electrode.

図３には、筐体１２内にリチウムイオン電池６０を装填したときの、リチウムイオン電池６０と充電装置７０との接続関係が、模式的に示される。リチウムイオン電池６０は、電池セル６２及び制御回路６４を備える。電池セル６２のマイナス側は、制御回路６４を介して、第１正電極２６に接続され、電池セル６２のマイナス側は制御回路６４を介して負電極２２に接続される。補助電極２４と付加電極２０Ｘは制御回路６４の入力端子に接続される。
FIG. 3 schematically shows the connection relationship between the lithium ion battery 60 and the charging device 70 when the lithium ion battery 60 is loaded in the housing 12. The lithium ion battery 60 includes a battery cell 62 and a control circuit 64. The negative side of the battery cell 62 is connected to the first positive electrode 26 via the control circuit 64, and the negative side of the battery cell 62 is connected to the negative electrode 22 via the control circuit 64. The auxiliary electrode 24 and the additional electrode 20X are connected to the input terminal of the control circuit 64.

充電装置７０は、周知の構造を有しており、充電装置７０から延出するコネクタ７２の電極部８０は、筐体１２の電極部２０と同様の構造となっており、４個の電極：負電極８２と補助電極８４と第１正電極８６と第２正電極８８とから構成される。しかして、第２正電極８８のみがアイドル端子とされ、負電極８２、補助電極８４及び第１正電極８６が、充電装置７０の内部の対応個所に接続されている。そして、充電装置７０側のコネクタ７４の電極部８０が、図示されるように、筐体１２の凹部１４内において、筐体１２側の電極部２０と着脱自在に接続された後、充電装置７０がオンされると、筐体１２側の電極部２０の負電極２２、補助電極２４及び第１正電極２６が、夫々、充電装置７０側のコネクタ７２の電極部８０の負電極８２、補助電極８４及び第１正電極８６を介して、充電装置７０の内部の対応個所と通電状態となり、電池セル６２が充電される。このとき、付加電極２０Ｘは、充電装置７０側の電極部８０とは、電気的接続関係にはない。   The charging device 70 has a well-known structure, and the electrode portion 80 of the connector 72 extending from the charging device 70 has the same structure as the electrode portion 20 of the housing 12, and has four electrodes: The negative electrode 82, the auxiliary electrode 84, the first positive electrode 86, and the second positive electrode 88 are configured. Accordingly, only the second positive electrode 88 is an idle terminal, and the negative electrode 82, the auxiliary electrode 84, and the first positive electrode 86 are connected to corresponding portions inside the charging device 70. Then, after the electrode unit 80 of the connector 74 on the charging device 70 side is detachably connected to the electrode unit 20 on the housing 12 side in the recess 14 of the housing 12 as shown in the figure, the charging device 70 is then attached. Is turned on, the negative electrode 22, the auxiliary electrode 24 and the first positive electrode 26 of the electrode unit 20 on the housing 12 side are respectively connected to the negative electrode 82 and the auxiliary electrode of the electrode unit 80 of the connector 72 on the charging device 70 side. Via the 84 and the first positive electrode 86, the corresponding portion inside the charging device 70 is energized, and the battery cell 62 is charged. At this time, the additional electrode 20X is not electrically connected to the electrode unit 80 on the charging device 70 side.

尚、図３に示す構造においても、コネクタ７２の絶縁リブ７２Ｒ１、７２Ｒ２及び７２Ｒ３が、夫々、筐体１２の凹部１４の底面の溝ＧＲ１、溝ＧＲ２及び溝ＧＲ３に嵌挿される。   3, the insulating ribs 72R1, 72R2, and 72R3 of the connector 72 are inserted into the grooves GR1, GR2, and GR3 on the bottom surface of the recess 14 of the housing 12, respectively.

そして、充電完了後、充電装置７０がオンされたまま（つまり充電装置７０が図示されない電源との通電状態が維持されたまま）コネクタ７２が筐体１２の凹部１４から抜かれた場合、図示されない車椅子の金属製のフレームにコネクタ７２が接触したとしても、コネクタ７２の絶縁リブ７２Ｒ１、７２Ｒ２及び７２Ｒ３が、金属フレームによる、負電極８２と補助電極８４との間の導通、補助電極８４と第１正電極８６との間の導通及び第１正電極８６と第２正電極８８との間の導通を、夫々阻止するので、充電装置７０の内部回路の短絡が未然に防止される。   Then, after the charging is completed, when the connector 72 is removed from the recess 14 of the housing 12 while the charging device 70 is turned on (that is, the charging device 70 is kept energized with a power source not shown), the wheelchair (not shown) Even if the connector 72 comes into contact with the metal frame, the insulating ribs 72R1, 72R2 and 72R3 of the connector 72 are electrically connected between the negative electrode 82 and the auxiliary electrode 84 by the metal frame, and the auxiliary electrode 84 and the first positive electrode Since conduction between the electrode 86 and conduction between the first positive electrode 86 and the second positive electrode 88 are blocked, short-circuiting of the internal circuit of the charging device 70 is prevented in advance.

充電が終わった電池は、コネクタ９０を介して、モータ制御部１００に接続される。すなわち、図４に示されるように、筐体１２の凹部１４内において、筐体１２側の電極部２０と着脱自在に接続されるコネクタ９０の電極部９２は、負電極２２、補助電極２４並びに第１正電極２６及び第２正電極２８と必ず接続される負電極９４、補助電極９６並びに正電極９８とからなっており、筐体１２内に装填されているニッケル水素電池３０の、モータ制御装置への通電を可能とする。尚、補助電極９６は、このとき、アイドル端子となっている。また、コネクタ９０側には電源がないので、端子間の導通に伴う内部回路の短絡は問題とならないので、コネクタ９０にはリブは設ける必要がないとの理由で、図では省略してあるが、雨水等による漏電防止の観点から設けるのが望ましい。   The charged battery is connected to the motor control unit 100 via the connector 90. That is, as shown in FIG. 4, in the recess 14 of the housing 12, the electrode portion 92 of the connector 90 that is detachably connected to the electrode portion 20 on the housing 12 side includes the negative electrode 22, the auxiliary electrode 24, and The negative electrode 94, auxiliary electrode 96 and positive electrode 98 which are always connected to the first positive electrode 26 and the second positive electrode 28, and the motor control of the nickel metal hydride battery 30 loaded in the housing 12. Allows energization of the device. The auxiliary electrode 96 is an idle terminal at this time. In addition, since there is no power supply on the connector 90 side, a short circuit of the internal circuit due to conduction between terminals does not matter, so the connector 90 is omitted in the figure because it is not necessary to provide a rib. It is desirable to provide from the viewpoint of preventing leakage due to rainwater.

図５に示されるように、充電が終わった筐体１２内のリチウムイオン電池６０は、コネクタ１９０を介して、モータ制御部１００に接続される。すなわち、筐体１２の凹部１４内において、筐体１２側の電極部２０と着脱自在に接続されるコネクタ１９０の電極部１９２は、付加電極２０Ｘ及び負電極２２、補助電極２４並びに第１正電極２６及び第２正電極２８と必ず接続される負電極１９４、補助電極１９６並びに正電極１９８とからなっており、筐体１２内に装填されているリチウムイオン電池６０の、モータ制御部１００への通電を可能とする。尚、補助電極１９６は、このとき、アイドル端子となっている。
As shown in FIG. 5, the lithium ion battery 60 in the housing 12 that has been charged is connected to the motor control unit 100 via the connector 190. That is, the electrode portion 192 of the connector 190 detachably connected to the electrode portion 20 on the housing 12 side in the recess 14 of the housing 12 includes the additional electrode 20X, the negative electrode 22, the auxiliary electrode 24, and the first positive electrode. 26, the negative electrode 194 that is always connected to the second positive electrode 28, the auxiliary electrode 196, and the positive electrode 198. The lithium ion battery 60 loaded in the housing 12 is connected to the motor control unit 100. Enable energization. The auxiliary electrode 196 is an idle terminal at this time .

コネクタ１９０の負電極１９４は、制御回路６４の２つのポート：６４Ａ及び６４Ｂに接続されている。制御回路６４の一方のポート６４Ｂは図示されないスイッチング部を有しており、コネクタ１９０が接続されたとき、負電極２２と付加電極２２Ｘが負電極１９４により導通されると、スイッチング部を閉じる。モータで逆起電力が生起された場合、この逆起電力は、制御装置１００及びコネクタ１９０の負電極１９４を介して、制御装置６４の双方のポート：６４Ａ及び６４Ｂに印加される。ポート６４Ｂへの印加と同時に、制御装置６４はスイッチング部を閉じて、ポート６４Ａとリチウムイオン電池６０のマイナス側が導通されて、リチウムイオン電池６０の電池セル６２のマイナス側に起電力が印加され、電池セル６２が充電される。   The negative electrode 194 of the connector 190 is connected to two ports of the control circuit 64: 64A and 64B. One port 64B of the control circuit 64 has a switching unit (not shown). When the negative electrode 22 and the additional electrode 22X are electrically connected by the negative electrode 194 when the connector 190 is connected, the switching unit is closed. When a counter electromotive force is generated by the motor, the counter electromotive force is applied to both ports: 64A and 64B of the control device 64 via the control device 100 and the negative electrode 194 of the connector 190. Simultaneously with the application to the port 64B, the control device 64 closes the switching unit, the port 64A and the negative side of the lithium ion battery 60 are conducted, and the electromotive force is applied to the negative side of the battery cell 62 of the lithium ion battery 60, The battery cell 62 is charged.

制御回路２４は、補助電極２４に通電がなされていない場合、リチウムイオン電池６０をして出力のみ行わせしめる。しかし、付加電極２４に通電がなされた場合、補助電極２４への通電がなされていなくても、入力が可能となる。   When the auxiliary electrode 24 is not energized, the control circuit 24 causes the lithium ion battery 60 to output only. However, when the additional electrode 24 is energized, input is possible even if the auxiliary electrode 24 is not energized.

本発明に係る電動車椅子用バッテリー収納ケースの全体斜視図。The whole perspective view of the battery storage case for electric wheelchairs concerning the present invention. 図１に示す収納ケースの筐体の内部に装填されたニッケル水素電池を充電する際のコネクタ接続を説明する図。The figure explaining the connector connection at the time of charging the nickel metal hydride battery loaded in the inside of the housing | casing of the storage case shown in FIG. 図１に示す収納ケースの筐体の内部に装填されたリチウムイオン電池を充電する際のコネクタ接続を説明する図。The figure explaining the connector connection at the time of charging the lithium ion battery with which the inside of the housing | casing of the storage case shown in FIG. 1 was charged. 図１に示す収納ケースの筐体の内部に装填されたニッケル水素電池をモータ制御装置に印加する際のコネクタ接続を説明する図。The figure explaining the connector connection at the time of applying the nickel hydrogen battery loaded in the inside of the housing | casing of the storage case shown in FIG. 1 to a motor control apparatus. 図１に示す収納ケースの筐体の内部に装填されたリチウムイオン電池をモータ制御装置に印加する際のコネクタ接続を説明する図。The figure explaining the connector connection at the time of applying the lithium ion battery with which the inside of the housing | casing of the storage case shown in FIG. 1 was applied to a motor control apparatus.

符号の説明Explanation of symbols

１２ 筐体
２０ 電極部
２２ 負電極
２４ 補助電極
２６ 第１正電極
２８ 第２正電極
ＧＲ１ 溝
ＧＲ２ 溝
ＧＲ３ 溝
４０ 充電器
４２ コネクタ（第１コネクタ）
４２Ｒ１ 絶縁リブ
４２Ｒ２ 絶縁リブ
４２Ｒ３ 絶縁リブ
７０ 充電装置（充電器）
７２ コネクタ（第１コネクタ）
７２Ｒ１ 絶縁リブ
７２Ｒ２ 絶縁リブ
７２Ｒ３ 絶縁リブ
９０ コネクタ（第２コネクタ）
１００ モータ制御部
１９０ コネクタ（第２コネクタ）
１９２ コネクタ電極部
DESCRIPTION OF SYMBOLS 12 Case 20 Electrode part 22 Negative electrode 24 Auxiliary electrode 26 1st positive electrode 28 2nd positive electrode GR1 Groove GR2 Groove GR3 Groove 40 Charger 42 Connector (1st connector)
42R1 Insulating rib 42R2 Insulating rib 42R3 Insulating rib 70 Charging device (charger)
72 connector (first connector)
72R1 Insulating rib 72R2 Insulating rib 72R3 Insulating rib
90 connector (second connector)
100 Motor control unit 190 Connector (second connector)
192 Connector electrode

Claims (2)

リチウムイオン電池を収めたケースに対し、充電時に前記ケースに設けられた電極部に充電装置につながる第１コネクタが接続されて、前記リチウムイオン電池の充電が成され、車椅子の駆動をモータ制御部により行う第２コネクタに接続交換することにより、前記モータ制御部に給電が成されるようにした電動車椅子の電気接続構造において、
前記電極部は正電極、負電極および付加電極を有し、前記正電極は前記リチウムイオン電池の電池セルのプラス側に接続され、前記負電極はスイッチング部を有する制御回路を介して前記電池セルのマイナス側に接続され、
前記電極部に前記第２コネクタが接続された場合に、前記負電極と前記付加電極が短絡することにより前記スイッチング部が動作して、モータからの逆起電力により前記リチウムイオン電池が充電されるようにした電動車椅子の電気接続構造。 A first connector connected to a charging device is connected to an electrode portion provided in the case at the time of charging with respect to the case containing the lithium ion battery, charging of the lithium ion battery is performed, and the motor control unit drives the wheelchair. In the electric connection structure of the electric wheelchair in which power is supplied to the motor control unit by exchanging the connection to the second connector performed by
The electrode part has a positive electrode, a negative electrode and an additional electrode, the positive electrode is connected to the positive side of the battery cell of the lithium ion battery, and the negative electrode is connected to the battery cell via a control circuit having a switching part. Connected to the negative side of
When the second connector is connected to the electrode unit, the negative electrode and the additional electrode are short-circuited to operate the switching unit, and the lithium ion battery is charged by the counter electromotive force from the motor. Electric connection structure of an electric wheelchair. 前記第２コネクタは、前記ケース側に設けられた前記負電極と前記付加電極とを電気的に接続する電極を有している請求項１に記載の電動車椅子の電気接続構造。2. The electric wheelchair electrical connection structure according to claim 1, wherein the second connector includes an electrode that electrically connects the negative electrode and the additional electrode provided on the case side.
JP2003352088A 2003-10-10 2003-10-10 Electric wheelchair electrical connection structure Expired - Fee Related JP4595308B2 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH105283A (en) * 1996-06-19 1998-01-13 Aisin Seiki Co Ltd Battery mounting device for electric wheelchair
JP2000060006A (en) * 1998-08-07 2000-02-25 Denso Corp Charging and discharging system, battery pack, and charger and discharger
JP2000102116A (en) * 1998-09-18 2000-04-07 Honda Motor Co Ltd Compact electric vehicle
JP2001128313A (en) * 1999-10-25 2001-05-11 Yamaha Motor Co Ltd Power source unit for motor-driven vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH105283A (en) * 1996-06-19 1998-01-13 Aisin Seiki Co Ltd Battery mounting device for electric wheelchair
JP2000060006A (en) * 1998-08-07 2000-02-25 Denso Corp Charging and discharging system, battery pack, and charger and discharger
JP2000102116A (en) * 1998-09-18 2000-04-07 Honda Motor Co Ltd Compact electric vehicle
JP2001128313A (en) * 1999-10-25 2001-05-11 Yamaha Motor Co Ltd Power source unit for motor-driven vehicle

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