JP6241629B2 - Electric vehicle seal structure - Google Patents

Electric vehicle seal structure Download PDF

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Publication number
JP6241629B2
JP6241629B2 JP2016034430A JP2016034430A JP6241629B2 JP 6241629 B2 JP6241629 B2 JP 6241629B2 JP 2016034430 A JP2016034430 A JP 2016034430A JP 2016034430 A JP2016034430 A JP 2016034430A JP 6241629 B2 JP6241629 B2 JP 6241629B2
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floor panel
vehicle
seal member
battery unit
seal
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JP2016104630A (en
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亮平 鴨川
亮平 鴨川
修一 落合
修一 落合
啓二 山崎
啓二 山崎
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Mitsubishi Motors Corp
Mitsubishi Automotive Engineering Co Ltd
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Mitsubishi Motors Corp
Mitsubishi Automotive Engineering Co Ltd
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  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
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Description

本発明は、電動車両のシール構造に係り、詳しくは、サービスプラグ操作孔のシール構造に関する。   The present invention relates to a seal structure for an electric vehicle, and more particularly to a seal structure for a service plug operation hole.

電動車両には、電力を蓄電すると共に電動機に電力を供給するバッテリユニットが搭載されている。そして、バッテリユニットは、電動車両の車室或いは荷室の容積を確保するためにいずれかのフロア下部に配設されている。
そして、このようなバッテリユニットのバッテリケースには、バッテリユニットのメンテナンス等を行う際に車室内側よりバッテリユニット内部に設けられるサービスプラグの操作レバーを操作するためのサービスプラグ用開口部（サービスプラグ操作孔）が設けられている（特許文献１）。 The electric vehicle is equipped with a battery unit that stores electric power and supplies electric power to the electric motor. And the battery unit is arrange | positioned in one floor lower part in order to ensure the volume of the compartment or cargo compartment of an electric vehicle.
The battery case of such a battery unit has a service plug opening (service plug) for operating a service plug operation lever provided in the battery unit from the vehicle interior side when performing maintenance or the like of the battery unit. Operation hole) is provided (Patent Document 1).

特開２００９−８３６０１号公報JP 2009-83601 A

上記特許文献１のバッテリユニットでは、車両の組み立て時に作業者を感電等から保護するために、バッテリユニットの車載後にサービスプラグ操作孔を覆うキャップ部材をフロアパネルに取り付けるようにしている。また、バッテリユニットとフロアパネル間には、車外よりバッテリユニット内に水やゴミ等の侵入を防ぐ蛇腹状のブーツ部材（シール部材）が設けられている。そして、フロアパネル側のシール部材は、シール部材の上部に形成される取付溝にフロアパネルを嵌合させて取り付けられている。   In the battery unit of Patent Document 1, a cap member that covers the service plug operation hole is attached to the floor panel after the battery unit is mounted in order to protect the operator from electric shock or the like when the vehicle is assembled. In addition, a bellows-like boot member (seal member) is provided between the battery unit and the floor panel to prevent water and dust from entering the battery unit from outside the vehicle. The floor panel side sealing member is attached by fitting the floor panel into an attachment groove formed in the upper part of the sealing member.

このような、上記特許文献１のバッテリユニットを車載後にバッテリユニットのサービスプラグ操作孔の上部にパーキングブレーキケーブル等の車両構成部材が配設されるような車両に適用すると、キャップ部材を車両構成部材とフロアパネルとの間より横方向に移動させて、フロアパネルに取り付ける必要がある。
しかしながら、キャップ部材を車両構成部材とフロアパネルとの間より横方向に移動させてフロアパネルに取り付けるようにすると、キャップ部材とシール部材とが接触し、シール部材がフロアパネルより外れる虞がある。 When such a battery unit disclosed in Patent Document 1 is applied to a vehicle in which a vehicle component such as a parking brake cable is disposed above the service plug operation hole of the battery unit after being mounted on a vehicle, the cap member is used as the vehicle component. It is necessary to move to the side of the floor panel and attach it to the floor panel.
However, if the cap member is moved laterally between the vehicle component and the floor panel and attached to the floor panel, the cap member and the seal member may come into contact with each other, and the seal member may come off the floor panel.

したがって、このようにシール部材がフロアパネルより外れることで、バッテリユニット内に水やゴミ等が侵入する可能性があり好ましいことではない。
本発明は、この様な問題を解決するためになされたもので、その目的とするところは、バッテリユニット内に水等の侵入を防止することのできる電動車両のシール構造を提供することにある。 Therefore, when the sealing member is detached from the floor panel in this manner, water or dust may enter the battery unit, which is not preferable.
The present invention has been made to solve such a problem, and an object of the present invention is to provide a seal structure for an electric vehicle that can prevent water and the like from entering the battery unit. .

上記の目的を達成するために、請求項１の電動車両のシール構造では、筐体の内外を連通し、車載時に弾性変形して密封状態を保持するシール部材が配設される開口部を有するバッテリユニットと、前記開口部と対向する位置に車室内と連通し、前記シール部材の上部に形成された挿入溝が嵌合して取り付けられるシール部材取付孔が形成されるフロアパネルと、前記シール部材取付孔の上部に配設される車両構成部材と、前記車両構成部材と前記フロアパネルとの間を移動させ前記シール部材取付孔を覆うように前記フロアパネルに固定されるキャップ部材と、を備え、前記フロアパネル下部に前記バッテリユニットが配設される電動車両のシール構造において、前記キャップ部材の取り付け時に前記シール部材の脱落を防止する脱落防止手段を備え、前記脱落防止手段は、前記挿入溝の上部より前記フロアパネルに沿って前記キャップ部材の挿入方向に延び、前記キャップ部材の取り付け時に、前記キャップ部材の挿入方向となる側の端部に前記シール部材に抜け止め構造を有して形成されるシール部材側固定部と、前記シール部材取付孔よりも下方で、前記フロアパネルに形成される挿入孔とからなり、前記シール部材側固定部の前記端部を前記挿入孔に挿入して前記シール部材を固定することを特徴する。 To achieve the above object, the seal structure for an electric vehicle according to claim 1 has an opening in which a seal member that communicates with the inside and outside of the housing and is elastically deformed to maintain a sealed state when mounted on a vehicle is provided. A battery unit; a floor panel that communicates with the vehicle interior at a position facing the opening; and a seal member mounting hole formed by fitting an insertion groove formed in an upper portion of the seal member; and the seal A vehicle component disposed above the member mounting hole, and a cap member that moves between the vehicle component and the floor panel and is fixed to the floor panel so as to cover the seal member mounting hole. In the sealing structure of the electric vehicle provided with the battery unit at the lower part of the floor panel, the drop-off prevention for preventing the seal member from falling off when the cap member is attached The drop-off prevention means includes a step extending from the upper part of the insertion groove along the floor panel in the insertion direction of the cap member, and an end of the cap member in the insertion direction when the cap member is attached The seal member side fixing portion formed with a retaining structure on the seal member and an insertion hole formed in the floor panel below the seal member mounting hole, and fixing the seal member side The sealing member is fixed by inserting the end portion of the portion into the insertion hole.

請求項１の発明によれば、キャップ部材の取り付け時にシール部材の、キャップ部材の挿入側をフロアパネルに固定しているので、たとえキャップ部材がシール部材と当接しても、シール部材がフロアパネルのシール部材取付孔から外れることを防止することができる。
したがって、バッテリユニット内に水等の侵入を防止することができる。 According to the first aspect of the present invention, since the cap member insertion side of the seal member is fixed to the floor panel when the cap member is attached, the seal member is the floor panel even if the cap member contacts the seal member. Can be prevented from coming off from the seal member mounting hole.
Therefore, intrusion of water or the like into the battery unit can be prevented.

本発明の第１実施例に係る電動車両のサービスプラグ操作孔周辺部の概略図である。It is the schematic of the service plug operation hole periphery part of the electric vehicle which concerns on 1st Example of this invention. 同サービスプラグ操作孔の上面視図である。It is a top view of the service plug operation hole. 図２のＣ−Ｃ線での断面図である。It is sectional drawing in the CC line of FIG.

以下、本発明の実施の形態を図面に基づき説明する。
［第１実施例］
まずは、本発明の第１実施例に係る電動車両のサービスプラグ操作孔周辺部の構造に付いて説明する。
図１は、電動車両のサービスプラグ操作孔周辺部の概略図である。また、図２は、本発明の第１実施例に係る電動車両のシール構造を適用したサービスプラグ操作孔の上面視図である。そして、図３は、図２のＣ−Ｃ線での断面図である。図３中の太矢印は、バッテリユニット車載時におけるメンテナンスリッドの取り付け方向を示す。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First embodiment]
First, the structure around the service plug operation hole of the electric vehicle according to the first embodiment of the present invention will be described.
FIG. 1 is a schematic view of the periphery of a service plug operation hole of an electric vehicle. FIG. 2 is a top view of the service plug operation hole to which the seal structure of the electric vehicle according to the first embodiment of the present invention is applied. 3 is a cross-sectional view taken along the line CC in FIG. The thick arrows in FIG. 3 indicate the attachment direction of the maintenance lid when the battery unit is mounted on the vehicle.

本発明の車両（電動車両）１は、当該車両１の走行装置として、バッテリユニット２０より高電圧回路を介して高電圧の電力が供給されインバータにより作動が制御される走行用モータ（電動機）を備え、充電リッドに外部電源より延びる充電ケーブルを接続し、充電器にてバッテリユニット２０を充電することができる電動車両である。
バッテリユニット２０は、リチウムイオン電池等の二次電池で構成されるものである。そして、バッテリユニット２０は、電池セルを監視するセルモニタリングユニットを備え複数の電池セルで構成される複数のバッテリモジュールと、セルモニタリングユニットの出力に基づきバッテリモジュールの温度及び電池残量等を監視するバッテリモニタリングユニットと、絶縁構造で形成され、図３に示すような非常時や車両１のメンテナンス時にバッテリユニット２０内の高電圧回路を遮断するためのサービスプラグ２２と、高電圧を導電する導電部品と、短絡等により高電圧が導電する可能性のある導電性部品とが、樹脂製のバッテリユニットカバー２１とバッテリユニットケースとに内包されて一体に構成されている。 The vehicle (electric vehicle) 1 of the present invention includes a traveling motor (electric motor) that is supplied with high-voltage power from the battery unit 20 via a high-voltage circuit and whose operation is controlled by an inverter as a traveling device of the vehicle 1. And an electric vehicle in which a charging cable extending from an external power source is connected to the charging lid and the battery unit 20 can be charged by a charger.
The battery unit 20 is composed of a secondary battery such as a lithium ion battery. The battery unit 20 includes a cell monitoring unit that monitors the battery cell, and monitors a plurality of battery modules including a plurality of battery cells, a temperature of the battery module, a remaining battery level, and the like based on an output of the cell monitoring unit. A battery monitoring unit, a service plug 22 that is formed of an insulating structure and that shuts off a high voltage circuit in the battery unit 20 during an emergency or maintenance of the vehicle 1 as shown in FIG. 3, and a conductive component that conducts high voltage In addition, a conductive part that is likely to conduct a high voltage due to a short circuit or the like is enclosed in a resin battery unit cover 21 and a battery unit case, and is integrally configured.

また、図３に示すように、バッテリユニットカバー２１には、サービスプラグ２２を操作可能にするための開口部２１ａが設けられている。そして、このようなバッテリユニット２０は、バッテリユニットカバー２１の開口部２１ａと、車両１の車体の下部を形成するフロアパネル１１に形成されるサービスプラグ操作孔（シール部材取付孔）１１ａとが対向するようにフロアパネル１２の下方に配設されている。即ち、バッテリパック２０は、車室外に配設されている。また、バッテリユニットカバー２１の開口部２１ａとフロアパネル１１のサービスプラグ操作孔１１ａは、水等の浸入を防止するシール部材２３で開口部２１ａとサービスプラグ操作孔１１ａとが連通するように接続されている。そして、バッテリユニット２０の車載後には、サービスプラグ操作孔１１ａを覆うように長円形状に形成されたメンテナンスリッド３０が取り付けられる。   As shown in FIG. 3, the battery unit cover 21 is provided with an opening 21 a for enabling the service plug 22 to be operated. In such a battery unit 20, the opening 21a of the battery unit cover 21 and the service plug operation hole (seal member mounting hole) 11a formed in the floor panel 11 forming the lower part of the vehicle body of the vehicle 1 are opposed to each other. Thus, it is disposed below the floor panel 12. That is, the battery pack 20 is disposed outside the vehicle compartment. The opening 21a of the battery unit cover 21 and the service plug operation hole 11a of the floor panel 11 are connected so that the opening 21a and the service plug operation hole 11a communicate with each other with a seal member 23 that prevents intrusion of water or the like. ing. After the battery unit 20 is mounted on the vehicle, a maintenance lid 30 formed in an oval shape is attached so as to cover the service plug operation hole 11a.

シール部材２３のフロアパネル１１側となる箇所には、シール部材２３をフロアパネルのサービスプラグ操作孔１１ａに固定するための挿入溝１２３ａが形成されている。そして、シート部材２３は、挿入溝１２３ａにフロアパネル１１のサービスプラグ操作孔１１ａを挿入して、フロアパネル１１に固定される。また、シール部材２３の上端部には、バッテリユニット２０の車載時に車室内側に突出するようにグロメット部１２３ｂが形成されている。   An insertion groove 123a for fixing the seal member 23 to the service plug operation hole 11a of the floor panel is formed at a location on the floor panel 11 side of the seal member 23. The seat member 23 is fixed to the floor panel 11 by inserting the service plug operation hole 11a of the floor panel 11 into the insertion groove 123a. Further, a grommet portion 123b is formed at the upper end portion of the seal member 23 so as to protrude toward the vehicle interior side when the battery unit 20 is mounted on the vehicle.

そして、図１から図３に示すように、フロアパネル１１のサービスプラグ操作孔１１ａの上部には、車両の停車状態を保持するために運転者が操作するパーキングブレーキのケーブルであるパーキングケーブル１３が配設されている。
つぎに、このように構成された本発明の第１実施例に係る電動車両のシール構造を適用したサービスプラグ操作孔の作用及び効果について説明する。 As shown in FIGS. 1 to 3, a parking cable 13, which is a parking brake cable operated by the driver to maintain the vehicle stop state, is provided above the service plug operation hole 11 a of the floor panel 11. It is arranged.
Next, the operation and effect of the service plug operation hole to which the seal structure of the electric vehicle according to the first embodiment of the present invention configured as described above is applied will be described.

図２及び図３に示すように、メンテナンスリッド３０の挿入側（図３では左側）のフロアパネル１１に形成されるサービスプラグ操作孔１１ａの側方に、挿入孔１１ｂが形成されている。
また、シール部材２３のグロメット部１２３ｂには、パーキングケーブル１３等の車両構成部材とフロアパネル１１との間よりメンテナンスリッド３０を横方向に移動させて取り付ける際のメンテナンスリッド３０の挿入側（図３では左側）であって、挿入溝１２３ａの上部よりメンテナンスリッド３０の挿入方向に伸びる固定部１２３ｃが形成されている。そして、固定部１２３ｃの端部１２３ｄには、フロアパネル１１の挿入孔１１ｂに挿入した際に挿入孔１１ｂの内周部と係合し、抜けを防止する抜け防止構造１２３ｄが形成されている。詳しくは、抜け防止構造１２３ｄは、固定部１２３ｃの端部１２３ｄを挿入孔１１ｂに容易に挿入可能とする下方向に頂点を有するテーパ状に形成されるテーパ部１２３ｅと、固定部１２３ｃの端部１２３ｄを挿入孔１１ｂに挿入後にフロアパネル１１と当接する箇所が水平に形成される係合部１２３ｆとで構成されている。 As shown in FIGS. 2 and 3, an insertion hole 11 b is formed on the side of the service plug operation hole 11 a formed in the floor panel 11 on the insertion side (left side in FIG. 3) of the maintenance lid 30.
Also, the maintenance lid 30 is inserted into the grommet portion 123b of the seal member 23 when the maintenance lid 30 is attached by moving the maintenance lid 30 laterally from between the vehicle structural member such as the parking cable 13 and the floor panel 11 (FIG. 3). In the left side), a fixing portion 123c extending in the insertion direction of the maintenance lid 30 from the upper portion of the insertion groove 123a is formed. The end portion 123d of the fixing portion 123c is formed with a removal preventing structure 123d that engages with the inner peripheral portion of the insertion hole 11b when inserted into the insertion hole 11b of the floor panel 11 and prevents the removal. Specifically, the drop prevention structure 123d includes a tapered portion 123e having a downward apex that allows the end portion 123d of the fixed portion 123c to be easily inserted into the insertion hole 11b, and an end portion of the fixed portion 123c. A portion that comes into contact with the floor panel 11 after inserting 123d into the insertion hole 11b is configured with an engaging portion 123f formed horizontally.

つまり、図２及び図３に示すように、メンテナンスリッド３０の取り付け時に、メンテナンスリッド３０の挿入側（図３では左側）となるグロメット部１２３ｂの固定部１２３ｃに抜け防止構造１２３ｄを有する端部１２３ｄを形成している。そして、端部１２３ｄをフロアパネル１１の挿入孔１１ｂに挿入して、グロメット部１２３ｂをフロアパネル１１に固定している。   That is, as shown in FIGS. 2 and 3, when the maintenance lid 30 is attached, the end portion 123 d having the removal prevention structure 123 d on the fixing portion 123 c of the grommet portion 123 b that is the insertion side (left side in FIG. 3) of the maintenance lid 30. Is forming. Then, the end portion 123 d is inserted into the insertion hole 11 b of the floor panel 11, and the grommet portion 123 b is fixed to the floor panel 11.

このように、メンテナンスリッド３０の取り付け時にグロメット部１２３ｂのメンテナンスリッド３０の挿入側をフロアパネル１１に固定しているので、たとえメンテナンスリッド３０がグロメット部１２３ｂと当接しても、メンテナンスリッド３０にてグロメット部２３ｂを押し、シール部材２３の挿入溝２３ａより、フロアパネル１１のサービスプラグ操作孔１１ａが外れることを防止することができる。   Thus, since the insertion side of the maintenance lid 30 of the grommet portion 123b is fixed to the floor panel 11 when the maintenance lid 30 is attached, even if the maintenance lid 30 contacts the grommet portion 123b, the maintenance lid 30 It is possible to prevent the service plug operation hole 11a of the floor panel 11 from being removed from the insertion groove 23a of the seal member 23 by pushing the grommet portion 23b.

よって、バッテリユニット２０内に水等の侵入を防止することができる。   Therefore, entry of water or the like into the battery unit 20 can be prevented.

１ 車両 （電動車両）
１１ フロアパネル
１１ａ サービスプラグ操作孔（シール部材取付孔）
１１ｂ 挿入孔
２０ バッテリユニット
２３ シール部材
１２３ｃ 固定部（シール部材側固定部）
３０ メンテナンスリッド（キャップ部材） 1 Vehicle (Electric vehicle)
11 Floor panel 11a Service plug operation hole (seal member mounting hole)
11b Insertion hole 20 Battery unit 23 Seal member 123c Fixing part (seal member side fixing part)
30 Maintenance lid (cap member)

Claims (1)

筐体の内外を連通し、車載時に弾性変形して密封状態を保持するシール部材が配設される開口部を有するバッテリユニットと、前記開口部と対向する位置に車室内と連通し、前記シール部材の上部に形成された挿入溝が嵌合して取り付けられるシール部材取付孔が形成されるフロアパネルと、前記シール部材取付孔の上部に配設される車両構成部材と、前記車両構成部材と前記フロアパネルとの間を移動させ前記シール部材取付孔を覆うように前記フロアパネルに固定されるキャップ部材と、を備え、前記フロアパネル下部に前記バッテリユニットが配設される電動車両のシール構造において、
前記キャップ部材の取り付け時に前記シール部材の脱落を防止する脱落防止手段を備え、
前記脱落防止手段は、
前記挿入溝の上部より前記フロアパネルに沿って前記キャップ部材の挿入方向に延び、前記キャップ部材の取り付け時に、前記キャップ部材の挿入方向となる側の端部に前記シール部材に抜け止め構造を有して形成されるシール部材側固定部と、
前記シール部材取付孔よりも下方で、前記フロアパネルに形成される挿入孔とからなり、
前記シール部材側固定部の前記端部を前記挿入孔に挿入して前記シール部材を固定することを特徴する電動車両のシール構造。 A battery unit having an opening that communicates with the inside and outside of the housing, and is provided with a seal member that is elastically deformed and maintains a sealed state when mounted on the vehicle, and communicates with the vehicle interior at a position facing the opening. A floor panel in which a sealing member mounting hole formed by fitting an insertion groove formed in an upper portion of the member is formed; a vehicle constituent member disposed at an upper portion of the sealing member mounting hole; and the vehicle constituent member; A cap member fixed to the floor panel so as to move between the floor panel and cover the seal member mounting hole, and a seal structure for an electric vehicle in which the battery unit is disposed at a lower portion of the floor panel In
A drop prevention means for preventing the seal member from falling off when the cap member is attached,
The drop-off prevention means includes
The seal member has a retaining structure at the end on the side in the insertion direction of the cap member when the cap member is attached, extending in the insertion direction of the cap member from the upper part of the insertion groove along the floor panel. A sealing member side fixing portion formed as
Below the seal member mounting hole, consisting of an insertion hole formed in the floor panel,
A seal structure for an electric vehicle, wherein the seal member is fixed by inserting the end portion of the seal member side fixing portion into the insertion hole.
JP2016034430A 2016-02-25 2016-02-25 Electric vehicle seal structure Expired - Fee Related JP6241629B2 (en)

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