JP6094740B2 - Electrical case - Google Patents

Electrical case Download PDF

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JP6094740B2
JP6094740B2 JP2013045700A JP2013045700A JP6094740B2 JP 6094740 B2 JP6094740 B2 JP 6094740B2 JP 2013045700 A JP2013045700 A JP 2013045700A JP 2013045700 A JP2013045700 A JP 2013045700A JP 6094740 B2 JP6094740 B2 JP 6094740B2
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flange portion
clip
gasket
flange
tray
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JP2014175123A (en
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鎌田　亨
亨 鎌田
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Mitsubishi Motors Corp
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Mitsubishi Motors 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

Description

本発明は、車両に搭載される電装ケースに関する。   The present invention relates to an electrical case mounted on a vehicle.

電気自動車や電動モータとエンジンとを組み合わせたハイブリッド自動車など電動車両には、駆動用のバッテリユニットが搭載されている。多くのバッテリユニットは、箱形のバッテリケース（電装ケース）に、多数のバッテリモジュール（電装品）を収めた構造が用いられる。具体的には、バッテリモジュールを搭載（支持）した、上部が開口した箱形のトレイ部材に、下部が開口した、箱形のカバー部材を組み付けて、バッテリモジュールを覆う構造が用いられる。   A battery unit for driving is mounted on an electric vehicle such as an electric vehicle or a hybrid vehicle combining an electric motor and an engine. Many battery units use a structure in which a large number of battery modules (electrical components) are housed in a box-shaped battery case (electrical component case). Specifically, a structure is used in which the battery module is covered by assembling a box-shaped cover member having an opening at the bottom to a box-shaped tray member having an opening at the top where the battery module is mounted (supported).

こうしたバッテリユニットの多くは、車体の床下など車体の外部に配置されるため、水密性が求められる。そのため、バッテリケースには、トレイ部材の開口縁部の全周とカバー部材の開口縁部の全周にそれぞれフランジ部を形成し、両フランジ部を環状のガスケット部材を挟んで締結する構造が用いられる。つまり、両フランジ部材で挟み付けられる環状のガスケット部材にて、外部の水がケース内部へ侵入するのを防ぐ。   Since many of these battery units are arranged outside the vehicle body, such as under the floor of the vehicle body, water tightness is required. Therefore, the battery case has a structure in which flange portions are formed on the entire periphery of the opening edge portion of the tray member and the entire periphery of the opening edge portion of the cover member, and both flange portions are fastened with an annular gasket member interposed therebetween. It is done. That is, the annular gasket member sandwiched between both flange members prevents external water from entering the case.

こうしたケースの水密に用いられるガスケット部材は、特許文献１に開示されているようにトレイ部材に溝を設けその溝にガスケット部材を挿入させることで、バッテリパックのシール効果を発揮している。   The gasket member used for watertightness of such a case exhibits a battery pack sealing effect by providing a groove in the tray member and inserting the gasket member into the groove as disclosed in Patent Document 1.

特開２０１２−１２４１３１号公報JP2012-124131A

しかし、この構造は、トレイ部材が板金などの硬質な材質のものでは、トレイ部材に溝を形成することができず、ガスケット部材をうまく取り付けることができない。
そこで、本発明の目的は、ガスケット部材によるシールが、トレイ部材やカバー部材が板金といった硬質の材質にも容易に対応できる電装ケースを提供する。 However, in this structure, if the tray member is made of a hard material such as a sheet metal, a groove cannot be formed in the tray member, and the gasket member cannot be attached well.
Accordingly, an object of the present invention is to provide an electrical case in which sealing with a gasket member can easily cope with a hard material such as a tray member or a cover member made of sheet metal.

請求項１に記載の発明は、電装品を収容する箱形の電装ケースであって、電装品を支持するとともに、周回りに第１フランジ部を有するトレイ部材と、第１フランジ部と重なり合う第２フランジ部を周回りに有し、電装品を覆うように前記トレイ部材に配置されるカバー部材と、第１フランジ部および第２フランジ部の一方のフランジ部に形成されたクリップ孔と、クリップ孔に差し込み可能なクリップ部材を有し、クリップ部材がクリップ孔に差し込まれて一方のフランジ部に支持された環状のガスケット部材と、第１フランジ部と前記第２フランジ部とが重なるよう固定する固定部材とを備え、少なくともクリップ孔のある一方のフランジ部は板金部材で構成され、環状のガスケット部材と当接する他方のフランジ部は、環状のガスケット部材を収めるように一方のフランジ部から離れる方向へ段差部を有することとした。 The invention according to claim 1 is a box-shaped electrical case that accommodates electrical components, and supports the electrical components and has a tray member having a first flange portion around the circumference and a first flange portion overlapping the first flange portion. A cover member that has two flange portions around the periphery and is disposed on the tray member so as to cover the electrical component, a clip hole formed in one of the first flange portion and the second flange portion, and a clip A clip member that can be inserted into the hole, and the annular gasket member that is inserted into the clip hole and supported by one flange portion, and the first flange portion and the second flange portion are fixed so as to overlap each other. and a fixing member, one flange portion with at least the clip hole is formed of a sheet metal member, the other flange portion abuts an annular gasket member, an annular gasket Away from one of the flange portion so as to accommodate the member was to have a stepped portion.

請求項２に記載の発明は、トレイ部材およびカバー部材が、四隅部を有して箱状に形成され、固定部材およびクリップ部材が四隅部に配置されることとした。
請求項３に記載の発明は、第１フランジ部および第２フランジ部の四隅部は円弧形に形成され、環状のガスケット部材の四隅部のフランジ部分に配置されるガスケット部分は、円弧形のフランジ部分に沿って円弧形に配置され、クリップ部材がガスケット部分の円弧形の両端にも配置されることとした。 According to the second aspect of the present invention, the tray member and the cover member are formed in a box shape having four corners, and the fixing member and the clip member are arranged at the four corners.
According to a third aspect of the present invention, the four corners of the first flange portion and the second flange portion are formed in an arc shape, and the gasket portions arranged in the flange portions at the four corner portions of the annular gasket member are arc-shaped. The clip member is also arranged at both ends of the arc shape of the gasket portion.

請求項１の発明によれば、カバー部材、又はトレイ部材の一方に段差部を設け、他方にガスケット部材をクリップで取り付けることで、段差部にガスケット部材を収容することができる。更に、ガスケット部材の外側にも縦壁ができることで剛性を高めることができ、ガスケット部材を潰した反力によるカバー部材の変形を抑制することができ、シール性が向上する。   According to the first aspect of the present invention, it is possible to accommodate the gasket member in the stepped portion by providing the stepped portion on one of the cover member or the tray member and attaching the gasket member on the other side with the clip. Furthermore, since the vertical wall is formed on the outer side of the gasket member, the rigidity can be increased, the deformation of the cover member due to the reaction force crushed the gasket member can be suppressed, and the sealing performance is improved.

このようにガスケット部材によりシールした電装ケースは、カバー部材、トレイ部材に溝を設ける必要がないので、板金製のトレイ部材やカバー部材にも容易に対応できる。
請求項２の発明によれば、シール不良の生じやすいトレイ部材やカバー部材の四隅部を十分にシールできる。
請求項３の発明によれば、最少個数のクリップ部材で、ガスケット部材の四隅部を十分にシールできる。 Since the electrical case sealed with the gasket member in this manner does not require a groove in the cover member and the tray member, it can be easily applied to a sheet metal tray member and cover member.
According to the second aspect of the invention, the four corners of the tray member and the cover member that are likely to cause a sealing failure can be sufficiently sealed.
According to the invention of claim 3, the four corners of the gasket member can be sufficiently sealed with the minimum number of clip members.

本発明の第１の実施形態に係る電装ケースの外観を示す斜視図。The perspective view which shows the external appearance of the electrical equipment case which concerns on the 1st Embodiment of this invention. 同電装ケースの主要部分を分解した分解斜視図。The disassembled perspective view which decomposed | disassembled the principal part of the electrical equipment case. 図２中のＡ−Ａ線に沿うステップ形の段差部およびその周辺の断面図。Sectional drawing of the step-shaped level | step-difference part in alignment with the AA in FIG. 2, and its periphery. 図２中のステップ形の段差部の一部およびその周辺を拡大して示す斜視図。The perspective view which expands and shows a part of step-shaped level | step-difference part in FIG. 2, and its periphery. 図２中の矢視Ｂから見た、環状のガスケット部材のコーナー部（四隅部）におけるクリップ部材の支持位置並びにボルトナット部材の締結位置を示す平面図。The top view which shows the support position of the clip member in the corner part (four corners) of a cyclic | annular gasket member, and the fastening position of a bolt nut member seen from the arrow B in FIG. 図１中のＣ−Ｃ線に沿うステップ形の段差部およびその周辺の断面図。Sectional drawing of the step-shaped level | step-difference part along CC line in FIG. 1, and its periphery. 本発明の第２の実施形態の要部となるガスケット部材を示す断面図。Sectional drawing which shows the gasket member used as the principal part of the 2nd Embodiment of this invention. 同ガスケット部材が押圧され変形したときを示す断面図。Sectional drawing which shows when the same gasket member is pressed and deform | transformed.

以下、本発明を図１から図６に示す第１の実施形態にもとづいて説明する。
図１は、本発明を適用した電装ユニット、例えば電気自動車に搭載される箱形のバッテリユニット１の外観を示し、図２は同バッテリユニット１の箱形のバッテリケース３（本願の電装ケースに相当）を分解した状態を示し、図３〜図６はバッテリケース３の各部を示している。 The present invention will be described below based on the first embodiment shown in FIGS.
FIG. 1 shows an external appearance of an electric unit to which the present invention is applied, for example, a box-shaped battery unit 1 mounted on an electric vehicle, and FIG. 2 shows a box-shaped battery case 3 of the battery unit 1 (in the electric case of the present application). FIG. 3 to FIG. 6 show each part of the battery case 3.

箱形のバッテリユニット１は、車外である電気自動車の床下に配置されるユニットであるので、水密性が求められる。このため、バッテリユニット１は、図１および図２に示されるような水密構造を有する箱形のバッテリケース３内に、多数のバッテリモジュール５や電流センサ（図示しない）や漏電センサ（図示しない）やコンタクタ（図示しない）などといった電装品を収容して構成される。   Since the box-shaped battery unit 1 is a unit disposed under the floor of an electric vehicle outside the vehicle, water tightness is required. Therefore, the battery unit 1 includes a large number of battery modules 5, current sensors (not shown), and earth leakage sensors (not shown) in a box-shaped battery case 3 having a watertight structure as shown in FIGS. And electrical components such as contactors (not shown).

このバッテリユニット１のバッテリケース３は、図２に示されるように上部が開口した箱形のトレイ部材７、下部が開口した箱形のカバー部材９を組み合わせた構造が用いられている。
ここではトレイ部材７は、板金製で、底壁８ａ、前後壁８ｂ，８ｃ、左右壁８ｄ、８ｅを有して形成され、上部が開口した箱形をなしている。前後壁８ｂ，８ｃおよび左右壁８ｄ、８ｅで形成される周壁部８の開口縁部の全周からは、外側へ張り出る環状のフランジ部１１（本願の第１のフランジ部に相当）が形成されている。このフランジ部１１のうち、周壁部８の四隅部１０ａ〜１０ｄに配置される各コーナー部分１２ａ〜１２ｄは、円弧形に形成してある。 As shown in FIG. 2, the battery case 3 of the battery unit 1 has a structure in which a box-shaped tray member 7 whose upper part is opened and a box-shaped cover member 9 whose lower part is opened are combined.
Here, the tray member 7 is made of sheet metal, is formed with a bottom wall 8a, front and rear walls 8b and 8c, and left and right walls 8d and 8e, and has a box shape with an open top. An annular flange portion 11 (corresponding to the first flange portion of the present application) projecting outward is formed from the entire circumference of the opening edge portion of the peripheral wall portion 8 formed by the front and rear walls 8b and 8c and the left and right walls 8d and 8e. Has been. Of the flange portion 11, the corner portions 12 a to 12 d disposed at the four corner portions 10 a to 10 d of the peripheral wall portion 8 are formed in an arc shape.

また周壁部８は、同周壁部８を囲うように配置された枠形の補強部材１４で補強されている。ここでは、例えば補強部材１４は、図３および図６にも示されるように周壁部８やフランジ部１１と向き合うＬ字形の壁（下面壁１４ａと側面壁１４ｂからなる）で枠形に形成した板金部品でなる。側面壁１４ｂの上端から外側に伸びるフランジ１４ｃがトレーのフランジ１１とスポット溶接される。   The peripheral wall portion 8 is reinforced by a frame-shaped reinforcing member 14 disposed so as to surround the peripheral wall portion 8. Here, for example, the reinforcing member 14 is formed in a frame shape with an L-shaped wall (consisting of a lower surface wall 14a and a side wall 14b) facing the peripheral wall portion 8 and the flange portion 11 as shown in FIGS. Made of sheet metal parts. A flange 14c extending outward from the upper end of the side wall 14b is spot welded to the flange 11 of the tray.

この補強部材１４の下面壁１４ａの先端部（全周）が、底壁８ａに取着され、トレイ部材７を周壁部８と補強部材１４とがなす角形の閉断面で囲っている。この枠形の閉断面構造によって、トレイ部材７を補強している。ちなみに、側面壁１４ｂの先端部（全周）は、フランジ部１１の幅方向中央の地点に取着してある。この補強されたトレイ部材７の底壁８ａ上に上記電装品（バッテリモジュール５、電流センサ、漏電センサ、コンタクタなど）が搭載（支持）してある。   The front end portion (entire circumference) of the lower surface wall 14a of the reinforcing member 14 is attached to the bottom wall 8a, and surrounds the tray member 7 with a square closed cross section formed by the peripheral wall portion 8 and the reinforcing member 14. The tray member 7 is reinforced by this frame-shaped closed cross-sectional structure. Incidentally, the front-end | tip part (entire periphery) of the side wall 14b is attached to the center point of the width direction of the flange part 11. As shown in FIG. On the bottom wall 8a of the reinforced tray member 7, the electrical components (battery module 5, current sensor, leakage sensor, contactor, etc.) are mounted (supported).

カバー部材９は、板金製で、図２〜図４および図６に示されるように上壁１６ａ、前後壁１６ｂ，１６ｃ、左右壁１６ｄ、１６ｅ有して形成され、下部が開口した箱形をなしている。前後壁１６ｂ，１６ｃおよび左右壁１６ｄ、１６ｅで形成される周壁部１６の開口縁部の全周からは、外側へ張り出る環状のフランジ部１７（本願の第２のフランジ部に相当）が形成されている。むろんフランジ部１７は、トレイ部材７のフランジ部１１と対となり、コーナー部１３ａ〜１３ｄは円弧形をなしている。   The cover member 9 is made of sheet metal, and is formed with a top wall 16a, front and rear walls 16b and 16c, left and right walls 16d and 16e as shown in FIGS. There is no. An annular flange portion 17 (corresponding to the second flange portion of the present application) projecting outward is formed from the entire periphery of the opening edge portion of the peripheral wall portion 16 formed by the front and rear walls 16b and 16c and the left and right walls 16d and 16e. Has been. Of course, the flange portion 17 is paired with the flange portion 11 of the tray member 7, and the corner portions 13a to 13d have an arc shape.

またトレイ部材７のフランジ部１１、カバー部材９のフランジ部１７のうちの一方、ここではフランジ部１１の上面には、環状のガスケット部材１９が設けられている。ガスケット部材１９は、図３に示されるような例えばＥＰＤＭソリッドゴム製の中空の凸形の断面を有する柔軟な部品が用いられている。このガスケット部材１９は、据付座となる平板形の下壁２０ａと、同下壁２０ａの両側から上方に起立して端を円弧状にした円弧形の起立壁２０ｂとを有した断面形状をもち、この断面形状の連続で、環状に形成してある。そして、下壁２０ａと起立壁２０ｂとで囲まれる中空部分２１にて、柔軟性を確保している。   An annular gasket member 19 is provided on one of the flange portion 11 of the tray member 7 and the flange portion 17 of the cover member 9, here on the upper surface of the flange portion 11. As the gasket member 19, a flexible part having a hollow convex cross section made of, for example, EPDM solid rubber as shown in FIG. 3 is used. The gasket member 19 has a cross-sectional shape having a flat plate-shaped lower wall 20a serving as a mounting seat and an arc-shaped standing wall 20b that rises upward from both sides of the lower wall 20a and has an arc-shaped end. In addition, the cross-sectional shape is continuous and formed in an annular shape. And the flexibility is ensured in the hollow part 21 enclosed by the lower wall 20a and the standing wall 20b.

この環状のガスケット部材１９が、図２および図３に示されるようにトレイ部材７の開口縁部（全周）を取り囲むよう、フランジ部１１の全周に渡り配置されている。ここでは、ガスケット部材１９は、フランジ部１１の上面の内周側、ここでは閉断面の配置される地点（フランジ部１１の幅方向中央の地点からトレイ部材７寄りの地点）に、環状に配置されている。このガスケット部材１９の下壁２０ａの全周方向各部には、あらかじめクリップ部材、ここでは樹脂製のピン形のクリップ部材２３が組み付けられている。これらクリップ部材２３の先端に形成されている尖頭部２３ａが、フランジ部１１の各部に設けたクリップ孔２４に挿入され、フランジ部１１の上面にガスケット部材１９を固定（支持）している。ちなみに、四隅部１０ａ〜１０ｄに配置されるガスケット部材１９の各コーナー部２５ａ〜２５ｃ（図２、図５：一部しか図示しない）は、フランジ部１１の円弧形のコーナー１２ａ〜１２ｄの形状に沿って円弧形に形成してある。   As shown in FIGS. 2 and 3, the annular gasket member 19 is disposed over the entire circumference of the flange portion 11 so as to surround the opening edge portion (entire circumference) of the tray member 7. Here, the gasket member 19 is annularly disposed on the inner peripheral side of the upper surface of the flange portion 11, here at the point where the closed cross section is disposed (the point near the tray member 7 from the central point in the width direction of the flange portion 11). Has been. A clip member, here a pin-shaped clip member 23 made of resin, is assembled in advance on each part of the lower wall 20a of the gasket member 19 in the entire circumferential direction. Pointed heads 23 a formed at the tips of the clip members 23 are inserted into clip holes 24 provided in the respective portions of the flange portion 11, and the gasket member 19 is fixed (supported) to the upper surface of the flange portion 11. Incidentally, each of the corner portions 25a to 25c (FIGS. 2 and 5: only a part is shown) of the gasket member 19 arranged at the four corner portions 10a to 10d is the shape of the arc-shaped corners 12a to 12d of the flange portion 11. It is formed in an arc shape along.

トレイ部材７とカバー部材９とは、このガスケット部材１９を挟んで、トレイ部材７のフランジ部１１の締結面をなす上面と、カバー部材９のフランジ部１７の締結面をなす下面とを重ね合わせる。そして、重ねたフランジ部１１，１７の各部を、固定部材(締結部材)、例えばボルトナット部材２７ａ，２７ｂで固定している。
具体的には、図４に示されるようにフランジ部１１の、ガスケット部材１９より外周側となる下面各部に、ナット部材２７ｂを取着し、これらナット部材２７ｂのナット孔２７ｃに合わせてフランジ部１１，１７に、それぞれボルト挿入孔２８を設けた構造で、フランジ部１７側からボルト部材２７ａをナット部材２７ｂへ螺挿することにより、フランジ部１１、１７を締結している。むろん、クリップなどで固定してもよい。この締結により、ガスケット部材１９は、フランジ部１１．１７で押圧、さらにはフランジ部１１の上面やフランジ部１７の下面で変形され、フランジ部１１，１７間をシールする。つまり、挟み付けられる環状のガスケット部材１９にて、外部から水がケース内部へ侵入するのを防ぐ構造にしている。 The tray member 7 and the cover member 9 sandwich the gasket member 19 so that the upper surface forming the fastening surface of the flange portion 11 of the tray member 7 and the lower surface forming the fastening surface of the flange portion 17 of the cover member 9 overlap each other. . And each part of the piled flange parts 11 and 17 is being fixed with the fixing member (fastening member), for example, bolt nut member 27a, 27b.
Specifically, as shown in FIG. 4, nut members 27b are attached to the lower surface portions of the flange portion 11 on the outer peripheral side of the gasket member 19, and the flange portions are aligned with the nut holes 27c of these nut members 27b. 11 and 17 are provided with bolt insertion holes 28, respectively, and the flange portions 11 and 17 are fastened by screwing the bolt member 27a into the nut member 27b from the flange portion 17 side. Of course, you may fix with a clip etc. By this fastening, the gasket member 19 is pressed by the flange portion 11.17 and further deformed by the upper surface of the flange portion 11 or the lower surface of the flange portion 17, and seals between the flange portions 11 and 17. In other words, the annular gasket member 19 is used to prevent water from entering the case from the outside.

この構造には、図２〜図４に示されるようにカバー部材９のフランジ部１７のうち、ガスケット部材１９でシールされるフランジ部分を、フランジ部１１の全周に渡り、相手側となるフランジ部１７から離れる方向へ段差させた段差部２９が用いられる。
すなわち、図３、図４および図６に示されるように段差部２９は、フランジ部１１の幅方向の一部を上方へ起立させた段差壁部（縦壁）３０ａと、同段差壁３０ａの上端部からカバー部材９の開口縁部までのフランジ部分を上方へ突き出した平板状の横壁部３０ｂとをもつ環状ステップ形の段差部で形成される。さらに述べれば横壁部３０ｂは、図６に示されるようにガスケット部材１９を、十分なシール性を発揮するつぶれ代Ｓ分、押圧して変形させる地点に配置してある。段差壁部３０ａは、変形（つぶれ）したガスケット部材１９の形状に応じた地点、例えばフランジ部１１の幅方向中央の地点Ｘ（図２、図４）に形成してあり、フランジ部１１上のガスケット部材１９を潰れた状態となるまで収められる構造にしてある。この環状のフランジ部１１の基部側に形成される環状の段差部２９にて、ガスケット部材１９によるフランジ部１１，１７間のシールを行える構造にしている。 In this structure, as shown in FIGS. 2 to 4, a flange portion sealed by the gasket member 19 of the flange portion 17 of the cover member 9 extends over the entire circumference of the flange portion 11 and becomes a counterpart flange. A stepped portion 29 that is stepped away from the portion 17 is used.
That is, as shown in FIGS. 3, 4, and 6, the stepped portion 29 includes a stepped wall portion (vertical wall) 30 a in which a part of the flange portion 11 in the width direction is erected upward, and the stepped wall 30 a It is formed by an annular stepped step portion having a flat horizontal wall portion 30b protruding upward from the flange portion from the upper end portion to the opening edge portion of the cover member 9. More specifically, as shown in FIG. 6, the lateral wall portion 30 b is disposed at a point where the gasket member 19 is pressed and deformed by a crushing amount S that exhibits sufficient sealing performance. The step wall portion 30 a is formed at a point corresponding to the shape of the deformed (crushed) gasket member 19, for example, a point X (FIGS. 2 and 4) in the center in the width direction of the flange portion 11. The gasket member 19 is configured to be accommodated until it is crushed. The annular step portion 29 formed on the base side of the annular flange portion 11 has a structure in which the gasket member 19 can seal between the flange portions 11 and 17.

詳しくは、フランジ部１７のボルト挿入孔２８から、フランジ部１１のナット孔２７ｃへ螺挿すると、図６に示されるようにガスケット部材１９は、段差部２９内で押圧され、これで、ガスケット部材１９の円弧形の起立壁２０ｂが左右対称的に潰れ、図６中のａ点に示されるように起立壁２０ｂの頂部が横壁部３０ｂの内面と密接する。またガスケット部材１９の下壁２０ａは左右対称的に撓み、下壁２０ａの両端部が図６中のｂ点、ｃ点に示されるようにフランジ部１１の上面と密接する。これで、フランジ部１１．１７間から、外部の水が内部に侵入するのを防ぐシール効果、フランジ部１１に形成したクリップ孔２４から、外部の水が内部に侵入するのを防ぐシール効果を発揮する。 Specifically, when the bolt 17 is screwed into the nut hole 27c of the flange portion 11 from the bolt insertion hole 28 of the flange portion 17, the gasket member 19 is pressed in the stepped portion 29 as shown in FIG. The 19 arcuate standing walls 20b are crushed symmetrically, and the top of the standing wall 20b is in close contact with the inner surface of the lateral wall 30b, as indicated by point a in FIG. Further, the lower wall 20a of the gasket member 19 bends symmetrically, and both end portions of the lower wall 20a are in close contact with the upper surface of the flange portion 11 as indicated by points b and c in FIG. Thus, a sealing effect that prevents external water from entering the inside from between the flange portions 11.17, and a sealing effect that prevents external water from entering the inside from the clip hole 24 formed in the flange portion 11 are provided. Demonstrate.

つまり、カバー部材９に段差部２９を設け、トレイ部材７にガスケット部材１９をクリップ部材２３で取り付けることで、段差部２９にガスケット部材を収容することができる。更にガスケット部材１９の外側にも縦壁（段差壁部）できることで剛性が高められ、ガスケット部材１９を潰した反力によるカバー部材９の変形が抑制できるので、シール性が向上する。 That is, by providing the step member 29 on the cover member 9 and attaching the gasket member 19 to the tray member 7 with the clip member 23, the gasket member can be accommodated in the step member 29. Further, since the vertical wall (step wall portion) can be formed outside the gasket member 19, the rigidity is enhanced, and the deformation of the cover member 9 due to the reaction force crushed the gasket member 19 can be suppressed, so that the sealing performance is improved.

したがって、バッテリユニット１（バッテリパック）のシール構造は、カバー部材９、トレイ部材７に溝を設ける必要がないので、板金製といった硬質な材質で形成されたトレイ部材やカバー部材にも容易に対応でき、十分なシール効果を発揮させることができる。
ガスケット部材１９のコーナー部２５ａ〜２５ｄは、シール不良を伴いやすいが（ずれやすいため）、図２に示されるようにフランジ部１１，１７のコーナー部１２ａ〜１２ｄ（四隅部）に、ボルトナット部材２７ａ，２７ｂ、クリップ部材２３を配置して、強固に支持しているから、ガスケット部材１９のコーナー部１２ａ〜１２ｄにおけるずれの発生が抑えられる。つまり、安定したシール効果が約束でき、シール不良の生じやすい四隅部を十分にシールできる。 Accordingly, since the seal structure of the battery unit 1 (battery pack) does not need to be provided with a groove in the cover member 9 and the tray member 7, it can be easily applied to a tray member or a cover member formed of a hard material such as a sheet metal. And a sufficient sealing effect can be exhibited.
The corner portions 25a to 25d of the gasket member 19 are likely to be accompanied by poor seals (because they are easily displaced). However, as shown in FIG. Since the 27a, 27b and the clip member 23 are arranged and firmly supported, the occurrence of deviation in the corner portions 12a to 12d of the gasket member 19 is suppressed. That is, a stable sealing effect can be promised, and the four corners that are likely to cause a sealing failure can be sufficiently sealed.

特に図５に示されるようにクリップ部材２３を、少なくともコーナー部２５ａ〜２５ｄガスケット部材１９のコーナー部２５ａ〜２５ｄの円弧形の端となる地点にそれぞれ配置すると、最少個数のクリップ部材２３で、ガスケット部材１９の四隅部を十分にシールできる。しかも、ボルト挿入孔２８やナット孔２７ｃを、円弧形のコーナー部２５ａ〜２５ｄとフランジ部１１のコーナー部１２ａ〜１２ｄの端との間に配置すると、最少個数のボルトナット部材２７ａ，２７ｂおよびクリップ部材２３で、安定したシール効果を発揮させることができる。加えてボルト挿入孔２８やナット孔２７ｃは、コーナー部１２ａ〜１２ｄの中間に配置したり、クリップ部材２３をコーナー部１２ａ〜１２ｄの頂部にも配置したりすると、一層、優れたシール効果が得られる。   In particular, as shown in FIG. 5, when the clip members 23 are arranged at the arc-shaped ends of the corner portions 25 a to 25 d of at least the corner portions 25 a to 25 d, respectively, the minimum number of clip members 23 is obtained. The four corners of the gasket member 19 can be sufficiently sealed. In addition, when the bolt insertion hole 28 and the nut hole 27c are arranged between the arc-shaped corner portions 25a to 25d and the ends of the corner portions 12a to 12d of the flange portion 11, the minimum number of bolt nut members 27a and 27b and The clip member 23 can exhibit a stable sealing effect. In addition, if the bolt insertion hole 28 and the nut hole 27c are arranged in the middle of the corner portions 12a to 12d, or the clip member 23 is also arranged at the top of the corner portions 12a to 12d, a further excellent sealing effect can be obtained. It is done.

図７および図８は、本発明の第２の実施形態を示す。
本実施形態は、ガスケット部材２３を構成する円弧形の起立壁２０ｂの頂部と、同じく下壁２０ａの幅方向両側の下面とに、それぞれ円弧形の突起部３２を形成して、図８に示されるようにガスケット部材１９がフランジ部１１，１７で挟み付けられると、各突起部３２が横壁部３０ｂの下面、フランジ部１１の上面に高い面圧で当たるようにしたものである。このようにすると、一層、高いシール効果が確保できる。 7 and 8 show a second embodiment of the present invention.
In the present embodiment, arc-shaped protrusions 32 are formed on the top of the arc-shaped standing wall 20b constituting the gasket member 23 and on the lower surfaces of both sides in the width direction of the lower wall 20a. When the gasket member 19 is sandwiched between the flange portions 11 and 17, as shown in FIG. 8, each protrusion 32 is made to contact the lower surface of the lateral wall portion 30b and the upper surface of the flange portion 11 with high surface pressure. In this way, a higher sealing effect can be ensured.

但し、図７および図８において、第１の実施形態と同じ部分には同一符号を付して、その説明を省略した。
なお、本発明は、上述した実施形態に限定されるものではなく、本発明の主旨を逸脱しない範囲内で種々可変して実施しても構わない。例えば上述の実施形態では、トレイ部材にガスケット部材を設け、カバー部材に段差部を設ける構造を挙げたが、これに限らず、カバー部材にガスケット部材を設け、トレイ部材に段差部を設ける構造でも構わない。また上述の実施形態では、バッテリユニットのバッテリケースに本発明を適用したが、これに限らず、インバータのケースやＤＣ−ＤＣコンバータのケースや充電器のケースなど、電装品を収める電装ケースであれば、本発明を適用しても構わない。 However, in FIG. 7 and FIG. 8, the same parts as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
Note that the present invention is not limited to the above-described embodiment, and various modifications may be made without departing from the spirit of the present invention. For example, in the above-described embodiment, the structure in which the tray member is provided with the gasket member and the cover member is provided with the stepped portion is described. However, the present invention is not limited thereto, and the cover member is provided with the gasket member and the tray member is provided with the stepped portion. I do not care. In the above-described embodiment, the present invention is applied to the battery case of the battery unit. However, the present invention is not limited thereto, and may be an electrical case that houses electrical components such as an inverter case, a DC-DC converter case, and a charger case. For example, the present invention may be applied.

３ バッテリケース（電装ケース）
５ バッテリモジュール（電装品）
７ トレイ部材
９ カバー部材
１１ トレイ部材のフランジ部（第１フランジ部）
１７ カバー部材のフランジ部（第２フランジ部）
１９ 環状のガスケット部材
２３ クリップ部材
２７ａ，２７ｂ ボルトナット部材（固定部材）
２９ 段差部 3 Battery case (electric case)
5 Battery modules (electrical components)
7 Tray member 9 Cover member 11 Flange portion of tray member (first flange portion)
17 Flange part of cover member (second flange part)
19 Annular gasket member 23 Clip member 27a, 27b Bolt nut member (fixing member)
29 steps

Claims (3)

電装品を収容する箱形の電装ケースであって、
前記電装品を支持するとともに、周回りに第１フランジ部を有するトレイ部材と、
前記第１フランジ部と重なり合う第２フランジ部を周回りに有し、前記電装品を覆うように前記トレイ部材に配置されるカバー部材と、
前記第１フランジ部および前記第２フランジ部の一方のフランジ部に形成されたクリップ孔と、
前記クリップ孔に差し込み可能なクリップ部材を有し、当該クリップ部材が前記クリップ孔に差し込まれて前記一方のフランジ部に支持された環状のガスケット部材と、
前記第１フランジ部と前記第２フランジ部とが重なるよう固定する固定部材とを備え、
少なくとも前記クリップ孔のある一方のフランジ部は板金部材で構成され、
前記環状のガスケット部材と当接する前記他方のフランジ部は、前記環状のガスケット部材を収めるように前記一方のフランジ部から離れる方向へ段差部を有する
ことを特徴とする電装ケース。 A box-shaped electrical case that houses electrical components,
A tray member that supports the electrical component and has a first flange portion around the circumference;
A cover member disposed around the tray member so as to cover the electrical component; and a second flange portion overlapping the first flange portion around the circumference,
A clip hole formed in one flange portion of the first flange portion and the second flange portion ;
An annular gasket member having a clip member insertable into the clip hole, the clip member being inserted into the clip hole and supported by the one flange portion ;
A fixing member for fixing the first flange portion and the second flange portion to overlap each other;
At least one flange portion having the clip hole is formed of a sheet metal member,
The electrical equipment case, wherein the other flange portion in contact with the annular gasket member has a step portion in a direction away from the one flange portion so as to accommodate the annular gasket member. 前記トレイ部材および前記カバー部材は、四隅部を有して箱状に形成され、
前記固定部材および前記クリップ部材は、前記四隅部に配置される
ことを特徴とする請求項１に記載の電装ケース。 The tray member and the cover member are formed in a box shape having four corners,
The electrical case according to claim 1, wherein the fixing member and the clip member are arranged at the four corners. 前記第１フランジ部および第２フランジ部の前記四隅部は円弧形に形成され、
前記環状のガスケット部材の前記四隅部のフランジ部分に配置されるガスケット部分は、前記円弧形のフランジ部分に沿って円弧形に配置され、
前記クリップ部材は、前記ガスケット部分の円弧形の両端にも配置される
ことを特徴とする請求項２に記載の電装ケース。 The four corner portions of the first flange portion and the second flange portion are formed in an arc shape,
The gasket portion disposed at the flange portion at the four corners of the annular gasket member is disposed in an arc shape along the arc-shaped flange portion,
The electrical case according to claim 2, wherein the clip member is also disposed at both ends of the arc shape of the gasket portion.
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