JP2015122914A - Electric power conversion unit case - Google Patents

Electric power conversion unit case Download PDF

Info

Publication number
JP2015122914A
JP2015122914A JP2013266264A JP2013266264A JP2015122914A JP 2015122914 A JP2015122914 A JP 2015122914A JP 2013266264 A JP2013266264 A JP 2013266264A JP 2013266264 A JP2013266264 A JP 2013266264A JP 2015122914 A JP2015122914 A JP 2015122914A
Authority
JP
Japan
Prior art keywords
plate portion
cover
lid plate
service
cover plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2013266264A
Other languages
Japanese (ja)
Inventor
宮崎 亮
Akira Miyazaki
亮 宮崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP2013266264A priority Critical patent/JP2015122914A/en
Publication of JP2015122914A publication Critical patent/JP2015122914A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/06Hermetically-sealed casings
    • H05K5/061Hermetically-sealed casings sealed by a gasket held between a removable cover and a body, e.g. O-ring, packing

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Connection Or Junction Boxes (AREA)
  • Inverter Devices (AREA)

Abstract

PROBLEM TO BE SOLVED: To improve the sealability of a seal member closing an opening hole formed in a lid plate of an electric power conversion unit case.SOLUTION: A first lid plate part 14a, in which a service hole 14h is formed, is expanded to the side that moves away from the interior of a housing 12 relative to a second lid plate part 14b. The structure improves the rigidity of the first lid plate part 14a and inhibits deformation of the first lid plate part 14a that is caused by a service cover 16 pressing the first lid plate part 14a through a gasket 18. Further, a flange plate part 16c provided at the service cover 16 prevents foreign objects from directly contacting with the gasket 18 and thus inhibits the deterioration of the gasket 18.

Description

本発明は、電力変換器を収納するための電力変換ユニットケースに関する。   The present invention relates to a power conversion unit case for housing a power converter.

下記特許文献1では、内部に電力変換器が収納されるケースの蓋板に、電力変換器の保守・点検を行うための開口穴(サービスホール)が形成され、開口穴がカバーにより覆われている。   In the following Patent Document 1, an opening hole (service hole) for performing maintenance / inspection of the power converter is formed in the cover plate of the case in which the power converter is housed, and the opening hole is covered with the cover. Yes.

特開2010−246321号公報JP 2010-246321 A 特開2010−115003号公報JP 2010-115033 A 特開2012−248415号公報JP 2012-248415 A

特許文献1において、ケースの蓋板に形成された開口穴への異物(例えば水等)の浸入を防ぐためには、開口穴の周囲でシール部材を蓋板とカバーとの間に挟みこむことが望ましい。ただし、カバーからシール部材を介して蓋板が押圧されることで撓むと、開口穴を塞ぐ密閉性が低下する原因となる。また、シール部材に直接異物が接触すると、シール部材が劣化する原因となり、開口穴を塞ぐ密閉性が低下する原因となる。   In Patent Document 1, in order to prevent foreign matter (for example, water) from entering the opening hole formed in the cover plate of the case, a seal member may be sandwiched between the cover plate and the cover around the opening hole. desirable. However, if the cover plate is bent by being pressed through the seal member from the cover, the sealing performance for closing the opening hole is reduced. Moreover, when a foreign material contacts a sealing member directly, it will cause a deterioration of a sealing member and will cause the sealing performance which blocks an opening hole to fall.

本発明は、電力変換ユニットケースの蓋板に形成された開口穴を塞ぐ密閉性を向上させることを目的とする。   An object of this invention is to improve the sealing performance which plugs up the opening hole formed in the cover plate of a power conversion unit case.

本発明に係る電力変換ユニットケースは、上述した目的を達成するために以下の手段を採った。   The power conversion unit case according to the present invention employs the following means in order to achieve the above-described object.

本発明に係る電力変換ユニットケースは、内部に電力変換器が収納される筐体と、開口穴が形成された第1蓋板部と、第1蓋板部より外周側で筐体に取り付けられる第2蓋板部とを含み、第1蓋板部が第2蓋板部に対し筐体内部から離間する側に膨出し、第1蓋板部と第2蓋板部が接続板部により接続された蓋板と、第1蓋板部に取り付けられ、開口穴を覆うカバーと、開口穴の周囲で第1蓋板部とカバーとの間に挟まれるシール部材と、を備え、カバーには、蓋板の接続板部と対向するフランジ板部が設けられていることを要旨とする。   The power conversion unit case according to the present invention is attached to the housing on the outer peripheral side of the first cover plate portion, the first cover plate portion in which the opening hole is formed, the case in which the power converter is housed. Including the second lid plate portion, the first lid plate portion bulges away from the inside of the housing relative to the second lid plate portion, and the first lid plate portion and the second lid plate portion are connected by the connection plate portion. A cover plate that is attached to the first cover plate portion and covers the opening hole, and a seal member that is sandwiched between the first cover plate portion and the cover around the opening hole. The gist is that a flange plate portion facing the connection plate portion of the cover plate is provided.

本発明によれば、蓋板(第1蓋板部)の剛性を向上させることができ、カバーからシール部材を介して押圧されることによる蓋板(第1蓋板部)の撓みを抑制することができる。さらに、カバーに設けられたフランジ板部により、シール部材に直接異物が接触するのを防ぐことができ、シール部材の劣化を抑制することができる。その結果、蓋板に形成された開口穴を塞ぐ密閉性を向上させることができる。   ADVANTAGE OF THE INVENTION According to this invention, the rigidity of a cover plate (1st cover plate part) can be improved, and the bending of a cover plate (1st cover plate part) by being pressed via a sealing member from a cover is suppressed. be able to. Furthermore, the flange plate portion provided on the cover can prevent foreign matter from coming into direct contact with the seal member, and can suppress deterioration of the seal member. As a result, it is possible to improve the sealing property that closes the opening hole formed in the lid plate.

本発明の実施形態に係る電力変換ユニットケースの蓋板14とサービスカバー16の構成例を示す図である。It is a figure which shows the structural example of the cover plate 14 and the service cover 16 of the power conversion unit case which concerns on embodiment of this invention. 図1のA−A断面に相当する図である。It is a figure equivalent to the AA cross section of FIG. 本発明の実施形態に係る電力変換ユニットケースの蓋板14とガスケット18とサービスカバー16の構成例を示す分解斜視図である。It is a disassembled perspective view which shows the structural example of the cover plate 14, the gasket 18, and the service cover 16 of the power conversion unit case which concerns on embodiment of this invention. 本発明の実施形態に係る電力変換ユニットケースの蓋板14とガスケット18の構成例を示す図である。It is a figure which shows the structural example of the cover plate 14 and the gasket 18 of the power conversion unit case which concerns on embodiment of this invention. 蓋板14に対するサービスカバー16の位置決めを説明する図である。It is a figure explaining positioning of the service cover 16 with respect to the cover board 14. FIG. 蓋板14の他の構成例を示す図である。It is a figure which shows the other structural example of the cover plate. 図6のB−B断面に相当する図である。It is a figure equivalent to the BB cross section of FIG. 蓋板14とサービスカバー16の他の構成例を示す図である。It is a figure which shows the other structural example of the cover plate and the service cover. 蓋板14とガスケット18とサービスカバー16の他の構成例を示す分解斜視図である。FIG. 6 is an exploded perspective view showing another configuration example of the lid plate 14, the gasket 18, and the service cover 16. L字状のシール形状と長方形状のシール形状との比較を示す図である。It is a figure which shows the comparison with an L-shaped seal shape and a rectangular seal shape.

以下、本発明を実施するための形態(以下実施形態という)を図面に従って説明する。   DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings.

図1〜4は、本発明の実施形態に係る電力変換ユニットケースの概略構成を示す図である。図1は蓋板14とサービスカバー16をケース上側から見た図を示し、図2は図1のA−A断面に相当する図を示し、図3は蓋板14とガスケット18とサービスカバー16の分解斜視図を示し、図4は蓋板14とガスケット18をケース上側から見た図を示す。箱状の筐体12の内部には、例えばインバータ等の電力変換器10が収納される。筐体12の内部に電力変換器10を収納した後は、筐体12の上面に蓋板(アッパーカバー)14を取り付けることで、筐体12上部の開口部に蓋がされる。蓋板14の外周部には、図示しない締結用ボルト(締結用部材)を通すための複数(図1〜4の例では4つ)のボルト挿通穴14iが形成されており、締結用ボルトを各ボルト挿通穴14iに通して筐体12とねじ締結を行うことで、蓋板14が筐体12に固定される。   1-4 is a figure which shows schematic structure of the power conversion unit case which concerns on embodiment of this invention. 1 shows a view of the cover plate 14 and the service cover 16 as viewed from the upper side of the case, FIG. 2 shows a view corresponding to the AA cross section of FIG. 1, and FIG. FIG. 4 shows a view of the cover plate 14 and the gasket 18 as viewed from the upper side of the case. A power converter 10 such as an inverter is accommodated in the box-shaped housing 12. After the power converter 10 is housed inside the housing 12, a lid plate (upper cover) 14 is attached to the upper surface of the housing 12, so that the opening at the top of the housing 12 is covered. A plurality of bolt insertion holes 14 i (four in the example of FIGS. 1 to 4) for passing fastening bolts (fastening members) (not shown) are formed on the outer peripheral portion of the cover plate 14. The lid plate 14 is fixed to the housing 12 by screwing the housing 12 through the bolt insertion holes 14i.

蓋板14には、筐体12の内部に通じるサービスホール(開口穴)14hが複数(図1〜4の例では2つ)形成されている。サービスホール14hは、電力変換器10のコネクタ締結作業や、電力変換器10の保守・点検作業を行うために設けられており、例えば電力変換器10のコネクタに面する位置に配置される。サービスホール14hを塞ぐために、蓋板14にはサービスカバー16がサービスホール14hを覆うように取り付けられている。さらに、水等の異物がサービスホール14hを通って筐体12の内部に浸入するのを防止するために、ガスケット(シール部材)18が蓋板14とサービスカバー16との間に挟まれ且つサービスホール14hの周囲を取り囲む状態で設けられている。図1〜4の例では、サービスカバー16には、シール溝16mが蓋板14におけるサービスホール14hより外周側の箇所と対向して形成されており、シール溝16mにガスケット18が嵌められる。   The lid plate 14 has a plurality of service holes (opening holes) 14h (two in the example of FIGS. 1 to 4) communicating with the inside of the housing 12. The service hole 14h is provided to perform a connector fastening operation of the power converter 10 and a maintenance / inspection operation of the power converter 10, and is disposed at a position facing the connector of the power converter 10, for example. In order to close the service hole 14h, a service cover 16 is attached to the cover plate 14 so as to cover the service hole 14h. Further, a gasket (seal member) 18 is sandwiched between the cover plate 14 and the service cover 16 to prevent foreign matters such as water from entering the inside of the housing 12 through the service hole 14h. It is provided so as to surround the periphery of the hole 14h. In the example of FIGS. 1 to 4, the service cover 16 is formed with a seal groove 16 m facing the outer peripheral side of the cover plate 14 from the service hole 14 h, and the gasket 18 is fitted into the seal groove 16 m.

蓋板14におけるガスケット18の周囲には、複数(図1〜4の例では6つ)のねじ穴14sが形成されており、サービスカバー16の外周部には、締結用ボルトを通すための複数(ねじ穴14sと同数)のボルト挿通穴16iがねじ穴14sと対向して形成されている。サービスカバー16のシール溝16mにガスケット18を嵌め込んだ状態で図示しない締結用ボルトを各ボルト挿通穴16i及びねじ穴14sに通してねじ締結を行うことで、蓋板14とサービスカバー16との間にガスケット18を挟み込んだ状態でサービスカバー16が蓋板14に固定される。電力変換器10のコネクタ締結作業や、電力変換器10の保守・点検作業を行う場合は、サービスカバー16を蓋板14から取り外す。一方、電力変換器10のコネクタ締結作業や、電力変換器10の保守・点検作業が終了したら、蓋板14とサービスカバー16との間にガスケット18を挟み込んだ状態でサービスカバー16を蓋板14に取り付ける。   A plurality (six in the example of FIGS. 1 to 4) of screw holes 14 s are formed around the gasket 18 in the cover plate 14, and a plurality of screw holes for passing fastening bolts are passed through the outer periphery of the service cover 16. Bolt insertion holes 16i (the same number as the screw holes 14s) are formed to face the screw holes 14s. With the gasket 18 fitted in the seal groove 16m of the service cover 16, a fastening bolt (not shown) is passed through each bolt insertion hole 16i and the screw hole 14s to perform screw fastening, so that the cover plate 14 and the service cover 16 are connected. The service cover 16 is fixed to the lid plate 14 with the gasket 18 sandwiched therebetween. When performing the connector fastening work of the power converter 10 or the maintenance / inspection work of the power converter 10, the service cover 16 is removed from the cover plate 14. On the other hand, when the connector fastening operation of the power converter 10 and the maintenance / inspection operation of the power converter 10 are finished, the service cover 16 is attached to the cover plate 14 with the gasket 18 sandwiched between the cover plate 14 and the service cover 16. Attach to.

本実施形態では、蓋板14は、サービスホール14hが形成された第1蓋板部14aと、複数のボルト挿通穴14iが形成され、第1蓋板部14aより蓋板外周側で筐体12に取り付けられる第2蓋板部14bとを含み、第1蓋板部14aが第2蓋板部14bに対し筐体12内部(電力変換器10)から離間する側(図2の上側)に膨出するよう第1蓋板部14aと第2蓋板部14bに段差が設けられている。第1蓋板部14aの板面と第2蓋板部14bの板面は互いに平行に配置され、第1蓋板部14aの外周端が接続板部14cを介して第2蓋板部14bと全周に渡って接続されている。接続板部14cは、第2蓋板部14bとの接続部が第1蓋板部14aとの接続部より蓋板外周側に位置するように、第2蓋板部14bの板面と垂直方向に対し傾斜して形成されている。サービスカバー16のシール溝16mは、第1蓋板部14aにおけるサービスホール14hより外周側の箇所と対向して形成され、ガスケット18がサービスホール14hの周囲で第1蓋板部14aとサービスカバー16との間に挟まれる。複数のねじ穴14sは、第1蓋板部14aの外周部(ガスケット18の当接箇所より蓋板外周側の位置)に形成されており、サービスカバー16は第1蓋板部14aに取り付けられる。図1〜4の例では、サービスホール14h、第1蓋板部14a、及びサービスカバー16が略長方形状に形成されている。蓋板14(第1蓋板部14aと第2蓋板部14bと接続板部14c)は、例えばプレス加工により成形される。   In the present embodiment, the cover plate 14 is formed with a first cover plate portion 14a in which a service hole 14h is formed and a plurality of bolt insertion holes 14i, and the housing 12 on the outer peripheral side of the cover plate from the first cover plate portion 14a. The first lid plate portion 14a is swelled on the side (the upper side in FIG. 2) away from the inside of the housing 12 (power converter 10) with respect to the second lid plate portion 14b. A step is provided in the first lid plate portion 14a and the second lid plate portion 14b so as to be taken out. The plate surface of the first cover plate portion 14a and the plate surface of the second cover plate portion 14b are arranged in parallel to each other, and the outer peripheral end of the first cover plate portion 14a is connected to the second cover plate portion 14b via the connection plate portion 14c. Connected all around. The connecting plate portion 14c is perpendicular to the plate surface of the second lid plate portion 14b so that the connecting portion with the second lid plate portion 14b is located on the outer peripheral side of the lid plate with respect to the connecting portion with the first lid plate portion 14a. It is inclined with respect to. The seal groove 16m of the service cover 16 is formed so as to face a portion on the outer peripheral side of the service hole 14h in the first cover plate portion 14a, and the gasket 18 is formed around the service hole 14h with the first cover plate portion 14a and the service cover 16. It is sandwiched between. The plurality of screw holes 14s are formed in the outer peripheral portion of the first cover plate portion 14a (the position on the outer peripheral side of the cover plate from the contact portion of the gasket 18), and the service cover 16 is attached to the first cover plate portion 14a. . In the example of FIGS. 1-4, the service hole 14h, the 1st cover board part 14a, and the service cover 16 are formed in the substantially rectangular shape. The lid plate 14 (the first lid plate portion 14a, the second lid plate portion 14b, and the connection plate portion 14c) is formed by, for example, pressing.

さらに、サービスカバー16の外周部には、フランジ板部16cが全周に渡って設けられている。サービスカバー16が蓋板14(第1蓋板部14a)に取り付けられた状態で、フランジ板部16cの先端部がシール溝16mに嵌め込まれたガスケット18より筐体12内部(電力変換器10)に近づく側(図2の下側)に張り出し、フランジ板部16cが蓋板14の接続板部14cと対向するように、フランジ板部16cがサービスカバー16に形成されている。さらに、フランジ板部16cが接続板部14cと平行になるように、フランジ板部16cがサービスカバー16の板面と垂直方向に対し傾斜して形成されている。サービスカバー16が第1蓋板部14aに取り付けられた状態では、フランジ板部16cが接続板部14cの周囲を全周に渡って取り囲む。サービスカバー16も、例えばプレス加工により成形される。   Further, a flange plate portion 16 c is provided on the outer periphery of the service cover 16 over the entire periphery. In a state where the service cover 16 is attached to the cover plate 14 (first cover plate portion 14a), the inside of the housing 12 (power converter 10) from the gasket 18 in which the front end portion of the flange plate portion 16c is fitted in the seal groove 16m. The flange plate portion 16c is formed on the service cover 16 so that the flange plate portion 16c faces the connection plate portion 14c of the lid plate 14 so as to project toward the side closer to the bottom (lower side in FIG. 2). Further, the flange plate portion 16 c is formed to be inclined with respect to the direction perpendicular to the plate surface of the service cover 16 so that the flange plate portion 16 c is parallel to the connection plate portion 14 c. In the state where the service cover 16 is attached to the first lid plate portion 14a, the flange plate portion 16c surrounds the connection plate portion 14c over the entire circumference. The service cover 16 is also formed by, for example, pressing.

サービスホール14hを塞ぐために、サービスホール14hの周囲でガスケット18をサービスカバー16と蓋板14との間に挟み込んだ状態でサービスカバー16を蓋板14に締結する際には、蓋板14がサービスカバー16からガスケット18を介して押圧される。蓋板14が押圧されることで撓むと、サービスホール14hを塞ぐ密閉性が低下しやすくなる。これに対して本実施形態では、サービスホール14hが形成された第1蓋板部14aを第2蓋板部14bに対し筐体12内部から離間する側に膨出させることで、蓋板14(第1蓋板部14a)の剛性を向上させることができる。そのため、蓋板14をプレス加工により成形した場合でも、サービスカバー16からガスケット18を介して押圧されることによる蓋板14(第1蓋板部14a)の撓みを抑制することができる。したがって、サービスホール14hを塞ぐ密閉性を向上させることができるとともに、蓋板14の製造コストを削減することができる。   When the service cover 16 is fastened to the cover plate 14 with the gasket 18 sandwiched between the service cover 16 and the cover plate 14 around the service hole 14h in order to close the service hole 14h, the cover plate 14 The cover 16 is pressed through the gasket 18. When the cover plate 14 is bent by being pressed, the sealing performance for closing the service hole 14h is likely to be lowered. On the other hand, in the present embodiment, the first cover plate portion 14a in which the service hole 14h is formed is bulged to the side away from the inside of the housing 12 with respect to the second cover plate portion 14b. The rigidity of the first cover plate portion 14a) can be improved. Therefore, even when the lid plate 14 is formed by press working, it is possible to suppress the deflection of the lid plate 14 (first lid plate portion 14a) due to being pressed from the service cover 16 via the gasket 18. Therefore, the sealing performance for closing the service hole 14h can be improved, and the manufacturing cost of the cover plate 14 can be reduced.

さらに、本実施形態では、サービスカバー16に設けたフランジ板部16cにより、ガスケット18に直接水等の異物が接触するのを防ぐことができ、ガスケット18の劣化を抑制することができる。また、サービスカバー16を蓋板14(第1蓋板部14a)に取り付ける際には、例えば図5に示すように、フランジ板部16cが蓋板14の接続板部14cに当たることで、第1蓋板部14aに対するサービスカバー16の位置が規制される。したがって、第1蓋板部14aに対するサービスカバー16の位置決めが容易となる。   Further, in the present embodiment, the flange plate portion 16 c provided on the service cover 16 can prevent foreign matters such as water from coming into direct contact with the gasket 18, and deterioration of the gasket 18 can be suppressed. Further, when the service cover 16 is attached to the cover plate 14 (first cover plate portion 14a), the flange plate portion 16c contacts the connection plate portion 14c of the cover plate 14 as shown in FIG. The position of the service cover 16 with respect to the cover plate portion 14a is restricted. Accordingly, the service cover 16 can be easily positioned with respect to the first cover plate portion 14a.

また、蓋板14の接続板部14cは、第2蓋板部14bとの接続部が第1蓋板部14aとの接続部より蓋板外周側に位置するように、第2蓋板部14bの板面と垂直方向に対し傾斜して形成されていることで、接続板部14cが第2蓋板部14bの板面と垂直に形成される場合と比較して、蓋板14(第1蓋板部14aと第2蓋板部14bと接続板部14c)のプレス加工による成形が容易となる。   Further, the connecting plate portion 14c of the cover plate 14 has a second cover plate portion 14b so that the connection portion with the second cover plate portion 14b is located on the outer peripheral side of the cover plate with respect to the connection portion with the first cover plate portion 14a. The connecting plate portion 14c is formed so as to be inclined with respect to the direction perpendicular to the plate surface of the first cover plate 14 as compared with the case where the connection plate portion 14c is formed perpendicular to the plate surface of the second cover plate portion 14b. The lid plate portion 14a, the second lid plate portion 14b, and the connection plate portion 14c) can be easily formed by press working.

本実施形態では、例えば図6,7に示すように、第1蓋板部14aにおいて、サービスホール14hの縁を筐体12内部側(図7の下側)へ折り返すことで、サービスホール14hの周囲に折り返し板部14dを形成することも可能である。折り返し板部14dの先端は、接続板部14cに接触するか、あるいは近接配置される。第1蓋板部14aにおいて、サービスカバー16からガスケット18を介して押圧されることで撓みやすい部分は、締結距離(ねじ穴14s間の距離)が長い部分であり、図6,7の例では、サービスホール14hの長手方向(図6の左右方向)の縁を折り返して折り返し板部14dを形成している。図6,7に示す構成例によれば、第1蓋板部14aがサービスカバー16からガスケット18を介して押圧されても、押圧される部分の剛性が折り返し板部14dによりさらに向上するとともに、折り返し板部14dの先端が接続板部14cに当たることで、第1蓋板部14aがさらに撓みにくくなる。したがって、サービスホール14hを塞ぐ密閉性をさらに向上させることができる。   In the present embodiment, for example, as shown in FIGS. 6 and 7, in the first cover plate portion 14 a, the edge of the service hole 14 h is folded back to the inside of the housing 12 (the lower side in FIG. 7), thereby It is also possible to form the folded plate portion 14d around the periphery. The tip end of the folded plate portion 14d is in contact with or disposed close to the connection plate portion 14c. In the first cover plate portion 14a, the portion that is easily bent by being pressed from the service cover 16 via the gasket 18 is a portion having a long fastening distance (distance between the screw holes 14s). In the examples of FIGS. The edge of the service hole 14h in the longitudinal direction (left and right direction in FIG. 6) is folded to form a folded plate portion 14d. According to the configuration example shown in FIGS. 6 and 7, even if the first cover plate portion 14 a is pressed from the service cover 16 via the gasket 18, the rigidity of the pressed portion is further improved by the folded plate portion 14 d, Since the tip of the folded plate portion 14d hits the connecting plate portion 14c, the first lid plate portion 14a is further hardly bent. Accordingly, it is possible to further improve the sealing performance for closing the service hole 14h.

また、本実施形態では、例えば図8,9に示すように、サービスホール14h、第1蓋板部14a、ガスケット18、及びサービスカバー16を略L字状に形成することも可能である。図10(a)の長方形状の場合と比較して、図10(b)のL字状の場合は、長手方向に沿った直線部の長さがcからdに短くなる。そのため、図8,9に示す構成例によれば、サービスホール14h、第1蓋板部14a、ガスケット18、及びサービスカバー16を略長方形状に形成した場合と比較して、第1蓋板部14aの剛性が向上して撓みにくくなる。   Moreover, in this embodiment, as shown, for example in FIG. 8, 9, the service hole 14h, the 1st cover board part 14a, the gasket 18, and the service cover 16 can also be formed in a substantially L shape. Compared to the rectangular shape in FIG. 10A, in the case of the L shape in FIG. 10B, the length of the straight portion along the longitudinal direction is shortened from c to d. Therefore, according to the configuration example shown in FIGS. 8 and 9, the first lid plate portion is compared with the case where the service hole 14h, the first lid plate portion 14a, the gasket 18, and the service cover 16 are formed in a substantially rectangular shape. The rigidity of 14a improves and it becomes difficult to bend.

以上、本発明を実施するための形態について説明したが、本発明はこうした実施形態に何等限定されるものではなく、本発明の要旨を逸脱しない範囲内において、種々なる形態で実施し得ることは勿論である。   As mentioned above, although the form for implementing this invention was demonstrated, this invention is not limited to such embodiment at all, and it can implement with a various form in the range which does not deviate from the summary of this invention. Of course.

10 電力変換器、12 筐体、14 蓋板、14a 第1蓋板部、14b 第2蓋板部、14c 接続板部、14d 折り返し板部、14h サービスホール、14i,16i ボルト挿通穴、14s ねじ穴、16 サービスカバー、16c フランジ板部、16m シール溝、18 ガスケット。   DESCRIPTION OF SYMBOLS 10 Power converter, 12 Housing | casing, 14 Cover plate, 14a 1st cover plate part, 14b 2nd cover plate part, 14c Connection plate part, 14d Folding plate part, 14h Service hole, 14i, 16i Bolt insertion hole, 14s screw Hole, 16 Service cover, 16c Flange plate, 16m Seal groove, 18 Gasket.

Claims (1)

内部に電力変換器が収納される筐体と、
開口穴が形成された第1蓋板部と、第1蓋板部より外周側で筐体に取り付けられる第2蓋板部とを含み、第1蓋板部が第2蓋板部に対し筐体内部から離間する側に膨出し、第1蓋板部と第2蓋板部が接続板部により接続された蓋板と、
第1蓋板部に取り付けられ、開口穴を覆うカバーと、
開口穴の周囲で第1蓋板部とカバーとの間に挟まれるシール部材と、
を備え、
カバーには、蓋板の接続板部と対向するフランジ板部が設けられている、電力変換ユニットケース。
A housing in which the power converter is housed, and
A first lid plate portion in which an opening hole is formed; and a second lid plate portion attached to the housing on the outer peripheral side of the first lid plate portion, the first lid plate portion being a housing with respect to the second lid plate portion. A lid plate that bulges away from the inside of the body, the first lid plate portion and the second lid plate portion being connected by a connection plate portion;
A cover attached to the first lid plate portion and covering the opening hole;
A seal member sandwiched between the first cover plate portion and the cover around the opening hole;
With
A power conversion unit case in which the cover is provided with a flange plate portion facing the connection plate portion of the cover plate.
JP2013266264A 2013-12-25 2013-12-25 Electric power conversion unit case Pending JP2015122914A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013266264A JP2015122914A (en) 2013-12-25 2013-12-25 Electric power conversion unit case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013266264A JP2015122914A (en) 2013-12-25 2013-12-25 Electric power conversion unit case

Publications (1)

Publication Number Publication Date
JP2015122914A true JP2015122914A (en) 2015-07-02

Family

ID=53534066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013266264A Pending JP2015122914A (en) 2013-12-25 2013-12-25 Electric power conversion unit case

Country Status (1)

Country Link
JP (1) JP2015122914A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017212535A1 (en) * 2016-06-07 2017-12-14 三菱電機株式会社 Power conversion device housing and plastic cap
WO2019073910A1 (en) * 2017-10-10 2019-04-18 株式会社デンソー Sealing structure of case for in-vehicle electronic components

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017212535A1 (en) * 2016-06-07 2017-12-14 三菱電機株式会社 Power conversion device housing and plastic cap
JPWO2017212535A1 (en) * 2016-06-07 2018-08-09 三菱電機株式会社 Power converter housing and resin cap
EP3468322A4 (en) * 2016-06-07 2019-06-26 Mitsubishi Electric Corporation Power conversion device housing and plastic cap
WO2019073910A1 (en) * 2017-10-10 2019-04-18 株式会社デンソー Sealing structure of case for in-vehicle electronic components

Similar Documents

Publication Publication Date Title
JP5736963B2 (en) Grommet
JP5861427B2 (en) Gasket, waterproof structure, and electronic equipment
JP5230488B2 (en) Waterproof terminal block
JP6094740B2 (en) Electrical case
US20180366866A1 (en) Connector
JP6531628B2 (en) Case closing structure
JP6709513B2 (en) Terminal block
JP2014164825A (en) Connector
JP2015122914A (en) Electric power conversion unit case
WO2015159595A1 (en) Battery pack
JP6184860B2 (en) Pedal unit
JP6160303B2 (en) Switch unit
WO2015186497A1 (en) Connector
KR101850190B1 (en) Fuel cell case
JP6071649B2 (en) Seal structure of electrical element
CN101917831B (en) Sealing structure for electric vehicle controller shell
JP2012033826A (en) Housing
JP6950253B2 (en) Electronic device
JP6520425B2 (en) Elastic shield member for equipment
JP2010115003A (en) Power cable cover
JP5924488B2 (en) Switch body structure
JP7248494B2 (en) box
JP6209997B2 (en) In-vehicle electrical equipment
JP6467630B2 (en) Switch device
JP2023182964A (en) Grommet assembly and wire harness