JP2021174978A - Electrical component box and electrical junction box with high waterproofness and airtightness by integrating packing with case or lid of enclosure - Google Patents

Electrical component box and electrical junction box with high waterproofness and airtightness by integrating packing with case or lid of enclosure Download PDF

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JP2021174978A
JP2021174978A JP2020091760A JP2020091760A JP2021174978A JP 2021174978 A JP2021174978 A JP 2021174978A JP 2020091760 A JP2020091760 A JP 2020091760A JP 2020091760 A JP2020091760 A JP 2020091760A JP 2021174978 A JP2021174978 A JP 2021174978A
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packing
lid
case
housing
airtightness
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信幸 高橋
Nobuyuki Takahashi
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TORQUE SEIMITSU KOGYO KK
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TORQUE SEIMITSU KOGYO KK
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Abstract

To provide a case or lid of an enclosure of each of an electrical component box, an electrical junction box and the like, capable of achieving size reduction, no positional deviation or dropping-off of a packing and quick and simple installation while ensuring waterproofness and airtightness.SOLUTION: An enclosure of each of an electrical component box and an electrical junction box is structured so that a lid 2a or a case 1 includes a trapezoidal protrusion 7 which generates repulsive power when a packing 3a is compressed by integrating the packing 3a by means of insert molding (injection molding) and thermal welding and a packing part rib 6 generating repulsive power of deflection by bending, which are provided around an opening part in an annular manner.SELECTED DRAWING: Figure 3

Description

本発明は、電装箱や電気接続箱の筐体となるケース又はフタに熱可塑性エラストマー樹脂をインサート成形(射出成形)で熱溶着させ、シーリングするパッキンとなる部分を一体化し、防水性や気密性を高め小型化し、尚且つ組立ての際のパッキンの位置ずれによる噛み込みやパッキンの脱落による防水又は気密不良が無い、迅速に簡便に組立が行える電装箱や電気接続箱の筐体及びパッキンに関する。 In the present invention, a thermoplastic elastomer resin is heat-welded by insert molding (injection molding) to a case or lid which is a housing of an electrical box or an electrical connection box, and a part to be a packing to be sealed is integrated to be waterproof and airtight. The present invention relates to a housing and packing of an electrical box or an electrical connection box that can be assembled quickly and easily without being caught in the packing due to misalignment of the packing during assembly or having no waterproof or airtightness due to the packing falling off.

開口を有するケースとこのケースを覆うフタを備える筐体の防水構造としては、下記特許文献1に開示された二つの構造が知られる。先ず、一つ目の防水構造によれば、ケースの周囲にパッキン溝が形成されるとともに、パッキン溝には環状のパッキンが組付けられる構造で、フタが被せられるとパッキンが押し潰され、この時にパッキンがケース及びフタの両方に密着して水分の侵入を防止することができる。 As a waterproof structure of a case having an opening and a housing provided with a lid covering the case, two structures disclosed in Patent Document 1 below are known. First, according to the first waterproof structure, a packing groove is formed around the case, and an annular packing is attached to the packing groove. When the lid is put on, the packing is crushed. Sometimes the packing adheres to both the case and the lid to prevent the ingress of moisture.

次に、二つ目の防水構造によれば、上記一つ目の防水構造の外側に、平板状の第二パッキンを開口位置に対して一段下がったような位置に配置され、このパッキンも押し潰されて、ケース及びフタの両方に密着する二重の防水構造としている。 Next, according to the second waterproof structure, a flat plate-shaped second packing is arranged on the outside of the first waterproof structure at a position one step lower than the opening position, and this packing is also pushed. It has a double waterproof structure that is crushed and adheres to both the case and lid.

特許文献2は、上記一つ目の防水構造に、パッキン溝の外側の同一平面に溝部が形成されることで、例えば塩分を含む水分を溝部に溜めることができ、その結果、塩分の結晶化をパッキンでなく溝部で生じさせることができ、パッキンの劣化を防止し、防水機能(塩分による防食機能)を維持するこができる構造が開示されている。 In Patent Document 2, for example, water containing salt can be stored in the groove by forming the groove on the same plane outside the packing groove in the first waterproof structure, and as a result, the salt is crystallized. Is disclosed in a structure that can be generated not in the packing but in the groove, prevent deterioration of the packing, and maintain a waterproof function (anticorrosion function due to salt).

特開2003−101256Japanese Patent Application Laid-Open No. 2003-101256 特開2019−220538JP-A-2019-220538

上記従来技術にあっては、防水の方法として、筐体のケース又はフタにパッキン溝を設け、このパッキン溝に沿って環状のパッキンを組み付ける方法又は、平板状のパッキンを筐体のケース又はフタに挟み込む方法が取られているが、何れも組立の際にパッキンが位置ずれ或いは脱落など、パッキンが所定の場所に取り付けられない不具合がある。また、開口部が平面でなく傾斜又は曲面のような凹凸が有る異形状の面においては、パッキンの取付けの際に浮きが生じ、位置ずれによる噛み込みや、脱落による欠陥を生ずるなど、取付けに苦労する問題がある。これらの問題を解決するには、パッキンが筐体のケース又はフタの定位置に確実に取り付けられていなければならない。 In the above-mentioned prior art, as a waterproofing method, a packing groove is provided in the case or lid of the housing, and an annular packing is assembled along the packing groove, or a flat plate-shaped packing is attached to the case or lid of the housing. However, in each case, there is a problem that the packing cannot be attached in a predetermined place, such as the packing being misaligned or falling off during assembly. In addition, if the opening is not a flat surface but has an uneven surface such as an inclined or curved surface, floating may occur when the packing is attached, causing biting due to misalignment or defects due to falling off. There is a difficult problem. To solve these problems, the packing must be securely attached to the housing case or lid in place.

また、上記従来技術の防水構造は、パッキンを押し潰すことでパッキンをケースとフタに密着させ水の侵入を防ぐ構造を取っている。この方法では、開口周囲にパッキンを設けることができないため、小スペースの筐体又は、パッキンがケース及びフタで挟み込んで押し潰せない部位がある筐体では使用できない問題がある。 Further, the waterproof structure of the above-mentioned conventional technique has a structure in which the packing is crushed to bring the packing into close contact with the case and the lid to prevent water from entering. In this method, since the packing cannot be provided around the opening, there is a problem that it cannot be used in a housing having a small space or a housing in which the packing is sandwiched between the case and the lid and cannot be crushed.

上記問題点を解決する為に、本発明の筐体は、請求項1のとおり、フタ又はケースのどちらか一方にパッキンをインサート成形(射出成形)で熱溶着し一体としたことを特徴とする。図2は筐体のフタ側にパッキンとなるシーリング材をインサート成形(射出成形)で熱溶着させて一体化した実施形態で、シール材となる樹脂は、熱可塑性エラストマー(通称TPE:サーモプラスチック・エストラマーと呼ばれている。)を使用する。 In order to solve the above problems, the housing of the present invention is characterized in that, as in claim 1, the packing is heat-welded to either the lid or the case by insert molding (injection molding) to be integrated. .. FIG. 2 shows an embodiment in which a sealing material to be a packing is heat-welded to the lid side of a housing by insert molding (injection molding) and integrated. The resin to be a sealing material is a thermoplastic elastomer (commonly known as TPE: thermoplastic. It is called an elastomer.)

TPEは、Oリング(加硫ゴム製)に変わる材料として、環境問題への関心の高まりに伴い、軽量化、生産性、省エネルギー、リサイクル性といった環境に対する負荷低減に寄与する性能を有し、自動車、家電、医療、食品、電線および日用品等あらゆる分野での使用されている。特に自動車分野においては、EVやHEVの車種拡大にも見られるように、環境問題への関心から、主に車両軽量化による燃費向上やCO2、NOxガス低減、高リサイクル性による環境負荷軽減の点から、加硫ゴム、軟質塩化ビニル樹脂代替材料としての普及が顕著となっている。 As an alternative material to O-rings (made of vulcanized rubber), TPE has performance that contributes to reducing the burden on the environment such as weight reduction, productivity, energy saving, and recyclability as interest in environmental issues grows. , Home appliances, medical care, food, electric wires and daily necessities. Especially in the automobile field, as seen in the expansion of EV and HEV models, due to concerns about environmental issues, fuel efficiency is improved by reducing the weight of vehicles, CO2 and NOx gas are reduced, and environmental load is reduced by high recyclability. Therefore, it has become remarkably popular as a substitute material for vultured rubber and soft vinyl chloride resin.

また、TPEは、東レ・デュポン株式会社製ハイレルなどのポリエステル・エラストマーが使用され、金属(鉄、銅など)やPBT樹脂などの硬質樹脂材料との溶着性が良いことが証明されており、フタ又はケースのどちらか一方にインサート成形(射出成形)をすることで熱溶着し、筐体のケース又はフタとパッキンを一体化することができる。更に一体化することで、防水又は気密構造を必用とする筐体のケースとフタの合わせ面は一面のみとなることから、防水又は気密対応の構造が取り易く、小型化、作業性の向上など優れた点を持っている。 In addition, polyester elastomer such as Hirel manufactured by Toray DuPont Co., Ltd. is used for TPE, and it has been proved that it has good weldability with hard resin materials such as metal (iron, copper, etc.) and PBT resin, and the lid. Alternatively, insert molding (injection molding) is performed on either one of the cases to perform heat welding, and the case or lid of the housing and the packing can be integrated. By further integrating, the case and lid of the housing that require a waterproof or airtight structure have only one mating surface, so it is easy to take a waterproof or airtight structure, and the size and workability are improved. It has excellent points.

このような請求項1の特徴を有する本発明によれば、パッキンがフタ又はケースのどちらかに一体化されていることから、位置ずれ及び脱落が無く、パッキン部が下向き取り付けや干渉物による見えない箇所への取付けにおいて、パッキンの位置ずれや脱落が無く、迅速に簡便に取り付けを行うことができる。更に、開口外側のパッキン溝にパッキンを組み付けないので、小型化でき防水又は気密構造を必用とする傾斜面や曲面を持つ複雑な開口形状に対しても、防水又は気密構造の対応の幅が広がる。 According to the present invention having such a feature of claim 1, since the packing is integrated with either the lid or the case, there is no misalignment or falling off, and the packing portion is visible due to downward mounting or an interfering object. When installing in a place where there is no packing, the packing does not shift or fall off, and it can be installed quickly and easily. Furthermore, since the packing is not assembled in the packing groove on the outside of the opening, the range of waterproof or airtight structure can be expanded even for a complicated opening shape having an inclined surface or a curved surface that can be miniaturized and requires a waterproof or airtight structure. ..

図2はフタ2aにパッキン3aをインサート成形(射出成形)で熱溶着した、フタとパッキンが一体化した形態である。図3の組立てられた筐体の断面で示す通り、パッキンには圧縮したことで発生する反発力でケース1に密着する突起7を持つことは従来の方法と同じであるが、請求項2のとおり、開口部の角、或いはコーナーRと開口部の側面を密着させる環状のリブ6を設けることで、更に高い防水効果を得ることができる。このリブ6は、ケース1にフタ2aを取付けの際に押さえつけていくと、リブ6は開口部の角又はコーナーRで潰され、すり鉢状にたわみが起こり、このたわみにより反発力が発生し、開口部の角又はコーナーR及び開口部側面に密着する。このように開口部の側面にもパッキンが密着するから、傾斜及び曲面のある複雑な異形状でも、確実に水の侵入を防ぐことができ防水性又は気密性を向上することができる。 FIG. 2 shows a form in which the lid and the packing are integrated by heat-welding the packing 3a to the lid 2a by insert molding (injection molding). As shown in the cross section of the assembled housing of FIG. 3, it is the same as the conventional method that the packing has a protrusion 7 that comes into close contact with the case 1 due to the repulsive force generated by compression, but claim 2. As described above, a higher waterproof effect can be obtained by providing the annular rib 6 that brings the corner of the opening or the corner R into close contact with the side surface of the opening. When the rib 6 is pressed against the case 1 when the lid 2a is attached, the rib 6 is crushed at the corner or corner R of the opening, and the rib 6 is bent like a mortar, and the repulsive force is generated by this bending. It is in close contact with the corner or corner R of the opening and the side surface of the opening. Since the packing also adheres to the side surface of the opening in this way, it is possible to reliably prevent water from entering even in a complicated irregular shape having an inclination and a curved surface, and it is possible to improve waterproofness or airtightness.

図4は筐体のケース側にパッキンを一体化した形態である。図5の組立てられた筐体の断面で示す通り、フタ2に開口部に合わせた凹形状が施されているものにおいては、前記に示した通りの効果で防水又は気密効果を高めることができる。また、図6はフタが平坦な形状のものを組立した筐体の断面を示している。リブ6はフタの平面ですり鉢状に潰されたわみが起こるが、前記同様に反発力により、フタに密着することで、フタとケースを面で潰す以上に高い防水又は気密効果が得られる。 FIG. 4 shows a form in which the packing is integrated on the case side of the housing. As shown in the cross section of the assembled housing of FIG. 5, when the lid 2 is provided with a concave shape matching the opening, the waterproof or airtight effect can be enhanced by the effect as shown above. .. Further, FIG. 6 shows a cross section of a housing in which a lid having a flat shape is assembled. The rib 6 is crushed into a mortar shape on the flat surface of the lid, and the rib 6 is brought into close contact with the lid by the repulsive force as described above, so that a higher waterproof or airtight effect can be obtained than when the lid and the case are crushed by the surface.

このように請求項2の特徴を有する本発明によれば、筐体の開口部の角部又は開口側面をパッキンのリブで強く密着させることができることで、防水又は気密効果を更に高めることができる他にも、傾斜の有る面、及び曲面などの複雑な異形状の開口を持つ筐体に防水構造を設けることができる。 As described above, according to the present invention having the feature of claim 2, the waterproof or airtight effect can be further enhanced by being able to strongly adhere the corners or the side surfaces of the opening of the housing with the ribs of the packing. In addition, a waterproof structure can be provided on a housing having an opening having a complicated irregular shape such as an inclined surface and a curved surface.

請求項3は、上記の一体化させた本発明の筐体のパッキンをパッキン単体へ応用したもので有る。図7は異形状又は傾斜及び曲面を持つ開口形状を持つパッキンの構造を示している。取付け面の形状に合わせた芯となる硬質材料(例えば、鉄などの金属及びPBT、PPSなどの樹脂材料が使用される。)にTPEをインサート成形(射出成形)で一体化することで、形状の安定したパッキンが製作でき、Oリングのように、溝に沿って浮き上がらないように押さえつけながら挿入していく煩わしさが無く、迅速に簡便な装着ができる。Claim 3 is an application of the integrated packing of the housing of the present invention to a single packing. FIG. 7 shows the structure of a packing having an irregular shape or an opening shape having an inclined shape and a curved surface. By integrating TPE into a hard material (for example, a metal such as iron and a resin material such as PBT and PPS) that serves as a core that matches the shape of the mounting surface by insert molding (injection molding), the shape is formed. The stable packing can be manufactured, and unlike the O-ring, there is no need to insert it while pressing it so that it does not rise along the groove, and it can be installed quickly and easily.

請求項4は、請求項3のパッキンの位置決め、脱落防止構造を示している。図7は前記パッキンの外周に複数個所に十字穴を持つタブを設け、取付け相手のピン状のガイドに差し込むことで、取付け位置が決まり、更に脱落を防止する効果がある。図8は、同様に取付け相手が穴の場合の位置決め及び脱落防止の形状を示し、すり割りの入ったボスを付けたもので、取付け相手の穴に差し込むことで、取付け位置が決まり、更に脱落を防止する。これらの位置決め及び脱落防止の機能を持つことで、脱落しやすい下向きの取付けや、障害物により見えない位置への取付けの際には、ガイドとなるピン又は穴へ差し込むだけで位置が決まり、パッキンの位置ずれ及び脱落が無く、信頼性の高い取り付けを迅速に簡便に行える作業性に優れたパッキンを提供することができるという効果を奏する。 Claim 4 shows the packing positioning and dropout prevention structure of claim 3. In FIG. 7, tabs having cross holes are provided at a plurality of locations on the outer circumference of the packing, and by inserting the tabs into the pin-shaped guides of the mounting partner, the mounting position is determined and there is an effect of further preventing the packing from falling off. Similarly, FIG. 8 shows the shape of positioning and prevention of falling off when the mounting partner is a hole, and has a boss with a crack. By inserting it into the hole of the mounting partner, the mounting position is determined and the mounting partner is further dropped. To prevent. By having these positioning and falling-out prevention functions, when mounting downwards where it is easy to fall off, or when mounting in a position that is not visible due to obstacles, the position can be determined simply by inserting it into a pin or hole that serves as a guide, and the packing. There is no misalignment or falling off, and it is possible to provide a packing having excellent workability, which enables quick and easy installation with high reliability.

本発明は、上記した通り防水性又は気密性を向上させた、電装箱及び電気接続箱などの筐体の小型化を図ることが可能で、また、取付け時の位置ずれ、脱落などの加工不具合を発生しないことで、迅速で簡便な取り付け作業が可能となる。 According to the present invention, it is possible to reduce the size of a housing such as an electrical box and an electrical connection box with improved waterproofness or airtightness as described above, and processing defects such as misalignment and dropping during installation. By not generating the above, quick and easy installation work becomes possible.

従来の籠体のシール方法の構造を示す一実施形態である。This is an embodiment showing the structure of a conventional cage sealing method. 本発明の筐体のフタ側にパッキンを一体化した一実施形態である。This is an embodiment in which packing is integrated on the lid side of the housing of the present invention. 図2実施形態組立時のA部の断面図である。FIG. 2 is a cross-sectional view of a part A at the time of assembling the embodiment. 本発明の筐体のケース側にパッキンを一体化した一実施形態で有る。It is an embodiment in which packing is integrated on the case side of the housing of the present invention. 図4実施形態組立時のB部の断面図である。FIG. 4 is a cross-sectional view of a portion B at the time of assembling the embodiment. 平面に取り付けた時のパッキンのシール状態の断面図である。It is sectional drawing of the sealed state of a packing when it is mounted on a flat surface. パッキンの取り付け用位置決め脱落防止用タブ設置参考例。Reference example of tab installation for positioning and dropout prevention for packing mounting. パッキンの取り付け用位置決め脱落防止用ボス設置参考例Reference example of boss installation for positioning and dropout prevention for packing mounting 本考案のパッキンのパッキン溝への取付け例。An example of mounting the packing of the present invention in the packing groove. 本考案のパッキンのパッキン溝無しでの取付け例。An example of mounting the packing of the present invention without a packing groove.

電装箱及び電気接続箱は、筐体と、この筐体に収容される複数の電子部品とを備えて構成される。筐体は、図1で示す開口を有するケース1と、開口を覆うフタ2と、開口の外側に配置される環状のパッキン3と、ケース及びカバーを締結する複数の締結部材5とを備えて構成される。ケースは、開口の周囲に第一の面を有し、カバーは、第一の面に面接触する第二の面を有する。第一の面及び第二の面のいずれか一方には、パッキンを組み付けるためのパッキン溝4が配置されるのが一般的だが、本発明はパッキン溝が無く、ケース又はカバーのいずれか一方にパッキンをインサート成形(射出成形)で熱溶着し一体化した形態となっている。 The electrical box and the electrical connection box include a housing and a plurality of electronic components housed in the housing. The housing includes a case 1 having an opening shown in FIG. 1, a lid 2 covering the opening, an annular packing 3 arranged outside the opening, and a plurality of fastening members 5 for fastening the case and the cover. It is composed. The case has a first surface around the opening and the cover has a second surface in surface contact with the first surface. A packing groove 4 for assembling the packing is generally arranged on either the first surface or the second surface, but the present invention has no packing groove and is provided on either the case or the cover. The packing is heat-welded by insert molding (injection molding) and integrated.

本発明の実施の形態について、図面を参照しながら詳細に説明する。図2は本発明の筐体の一実施形態である。パッキン2aはフタ3aにインサート成形(射出成形)で溶着され一体化されている。図4は図2の組立後の筐体の断面を示し、一体化されたフタ3aはパッキンの機能を兼ね備えることとなる。防水性を向上させるため、パッキンには、圧縮により反発力を得てケースとフタを密着させる開口外側に沿った環状の台形状の突起7aを1本ないし複数本設け水の侵入を防ぎ防水性又は気密性を高めている。 Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 2 is an embodiment of the housing of the present invention. The packing 2a is welded and integrated with the lid 3a by insert molding (injection molding). FIG. 4 shows a cross section of the housing after assembly in FIG. 2, and the integrated lid 3a also has a packing function. In order to improve waterproofness, the packing is provided with one or more annular trapezoidal protrusions 7a along the outside of the opening that obtains a repulsive force by compression to bring the case and lid into close contact with each other to prevent water from entering and waterproof. Or the airtightness is improved.

更に防水性又は気密性を高めるため、開口部コーナー又はコーナーRの側面に接するよう環状のリブ6aが設けられており、このリブに開口部コーナー又はコーナーRが押し付けられることで、リブはすり鉢状にたわみ、反発力を生み、開口部コーナー又はコーナーR及び開口部の側面に密着することで、より高い防水性又は気密性を発揮する。 In order to further improve waterproofness or airtightness, an annular rib 6a is provided so as to be in contact with the side surface of the opening corner or corner R, and the rib is shaped like a mortar by pressing the opening corner or corner R against the rib. It bends and produces a repulsive force, and by coming into close contact with the corner or corner R of the opening and the side surface of the opening, it exhibits higher waterproofness or airtightness.

図3は、パッキン2aをケース1aにインサート成形(射出成形)で溶着され一体化した筐体の一実施形態である。前記と同様にパッキン部には、水の侵入を防ぐ環状の突起が配置され、同様にフタ2の凹部コーナー又はコーナーRに接するようリブが設けられており、前記同様、図4の図3実施形態組立時の断面Bに示通り、このリブは曲げられ反発力を生み、凹部のコーナー又はコーナーRの側面に密着することで、より高い防水性また気密性を発揮する。 FIG. 3 shows an embodiment of a housing in which the packing 2a is welded to the case 1a by insert molding (injection molding) and integrated. Similar to the above, the packing portion is provided with an annular protrusion for preventing water from entering, and similarly, a rib is provided so as to be in contact with the concave corner or the corner R of the lid 2. Similarly to the above, FIG. As shown in the cross section B at the time of morphological assembly, this rib is bent to generate a repulsive force, and by coming into close contact with the corner of the recess or the side surface of the corner R, higher waterproofness and airtightness are exhibited.

図5は、図3のパッキン2aをケース1aにインサート成形(射出成形)で溶着され一体化したケースに平板状のフタ2bを組立てた実施形態の断面を示す。リブ6bはフタに押され、すり鉢状に曲げられることで反発力により、環状に接するリブとフタの密着が増し、より高い防水性を発揮する。パッキンがフタ又はケースと一体化されることで、取り付け面が平面で有っても、斜面や曲面で有っても、本発明の形態が使用可能である。 FIG. 5 shows a cross section of an embodiment in which a flat plate lid 2b is assembled in a case in which the packing 2a of FIG. 3 is welded to the case 1a by insert molding (injection molding) and integrated. The rib 6b is pushed by the lid and bent into a mortar shape, so that the repulsive force increases the adhesion between the ribs in contact with the ring and the lid, and exhibits higher waterproofness. By integrating the packing with the lid or the case, the embodiment of the present invention can be used regardless of whether the mounting surface is a flat surface, a sloped surface, or a curved surface.

図6、図7は、請求項4のとおり、本発明の硬質材と軟材をインサート成形(射出成形)で熱溶着し一体化したパッキンを示し、図9のとおり、既存のパッキン溝が施された筐体にも使用が可能で有る。芯となる硬質材11(使用材料としては、鉄などの金属及びPBT、PPSなどの熱可塑性樹脂がある。)を製作し、インサート成形(射出成形)で軟質制12(使用材料としては、TPEなどの熱可塑性エラストマーがある。)を熱溶着させて一体化させる。軟質材には、取付け相手開口の形状に合わせた環状の突起7を設け、この突起7が組立時に圧縮されることで反発力を生じ、ケースとフタに密着することで、防水性又は気密性を高めている。 6 and 7 show a packing in which the hard material and the soft material of the present invention are heat-welded and integrated by insert molding (injection molding) as shown in claim 4, and the existing packing groove is formed as shown in FIG. It can also be used in the case where it is used. A hard material 11 (materials used include metals such as iron and thermoplastic resins such as PBT and PPS) as a core is manufactured, and soft control 12 (material used is TPE) is insert-molded (injection-molded). There are thermoplastic elastomers such as) by heat welding to integrate them. The soft material is provided with an annular protrusion 7 that matches the shape of the mounting partner opening, and the protrusion 7 is compressed during assembly to generate a repulsive force, which adheres to the case and lid to make it waterproof or airtight. Is increasing.

また、芯を硬質材11で製作していることで、パッキン溝に合わせた形状を維持しており、平面だけでなく、傾斜や曲面を持つパッキン溝へのパッキンの取付けが簡便に行えることができる。また、取り付け位置のずれ防止及び脱落防止に、固定用の穴8又はボス10を設けていることで、相手部品の取付け形状に応じて、簡便に取り付けが可能となり、位置ずれ又は脱落が無いことから、下向きへの取付け又は陰に隠れて見えない箇所への取付けにおいても、簡便に組立不具合が無く取り付けが可能で作業効率を向上することができる。 Further, since the core is made of a hard material 11, the shape that matches the packing groove is maintained, and the packing can be easily attached not only to a flat surface but also to a packing groove having an inclined or curved surface. can. Further, by providing the fixing hole 8 or the boss 10 to prevent the mounting position from shifting and falling off, it can be easily mounted according to the mounting shape of the mating part, and there is no misalignment or falling off. Therefore, even in the case of mounting downward or in a place hidden behind and invisible, it can be easily mounted without any assembly failure, and work efficiency can be improved.

更に、請求項5のとおり、上記のパッキンに、図10のごとく開口に合わせた環状のリブ6を付けることで、開口部の角又は開口部側面に密着することができ、より防水性又は気密性を高めることができる。また、開口の外側に開口形状に合わせたパッキン溝を施す必要がないので、シーリングする面を小スペース化でき、筐体の小型化が可能となる。 Further, as in claim 5, by attaching the annular rib 6 that matches the opening to the packing as shown in FIG. 10, it can be brought into close contact with the corner of the opening or the side surface of the opening, and is more waterproof or airtight. You can improve your sex. Further, since it is not necessary to provide a packing groove on the outside of the opening according to the shape of the opening, the space to be sealed can be reduced and the housing can be miniaturized.

本発明は、上記した通り、筐体のケース又フタにパッキンをインサート成形(射出成形)で一体化することで、平面だけでなく傾斜面や曲面においても、防水性又は気密性を向上させることができ、取付けの際の位置ずれ、脱落など組立不具合も発生しないことから、迅速で簡便な組立作業が出来る電装箱及び電気接続箱などの筐体を提供することができる。 As described above, the present invention improves waterproofness or airtightness not only on a flat surface but also on an inclined surface or a curved surface by integrating the packing into the case or lid of the housing by insert molding (injection molding). It is possible to provide a housing such as an electrical box and an electrical connection box that can be assembled quickly and easily because no assembly trouble such as misalignment or dropping during mounting occurs.

1 ケース
2 フタ
2a フタ(パッキン一体)
3 パッキン
3a パッキン部
4 パッキン溝
5 ボルト(又はネジ)
6 パッキン部リブ(曲げ用)
7 パッキン部リブ(圧縮用)
8 取付け相手ピン形状用十字穴付きタブ
9 取付け相手ピン形状
10 取付け相手穴形状用スリワリ付きボス
11 パッキン形状保持用熱可塑性樹脂部
12 パッキンシーリング用熱可塑性エラストマー部
1 Case 2 Closure 2a Closure (with packing)
3 Packing 3a Packing part 4 Packing groove 5 Bolt (or screw)
6 Packing rib (for bending)
7 Packing rib (for compression)
8 Tab with cross hole for mounting mating pin shape 9 Mounting mating pin shape 10 Boss with thread for mounting mating hole shape 11 Thermoplastic resin part for packing shape holding 12 Thermoplastic elastomer part for packing sealing

Claims (5)

ケース又はフタの一方に、熱可塑性エラストマー樹脂でパッキンとなる、気密性や防水性を持たせたシーリング材をインサート成形(射出成形)で熱溶着させて一体化した、組立作業を迅速に簡便にできることを特長とした電装箱及び電気接続箱の筐体のケース又はフタ。 An airtight and waterproof sealing material, which is a packing made of a thermoplastic elastomer resin, is heat-welded to one of the case or lid by insert molding (injection molding) and integrated, making assembly work quick and easy. The case or lid of the housing of the electrical box and electrical connection box, which is characterized by being able to do so. パッキンにケース及びフタの平面で密着させるリブとケースの開口部角及び側面又はフタの凹部角及び凹部側面に密着させる環状のリブを設け気密性や防水性を高めたことを特長とする、ケース又はフタの一方にパッキンが一体化された電装箱及び電気接続箱の筐体のケース又はフタ。 The case is characterized in that the packing is provided with ribs that are brought into close contact with the flat surface of the case and the lid and annular ribs that are brought into close contact with the opening angle and side surface of the case or the concave angle and the concave side surface of the lid to improve airtightness and waterproofness. Alternatively, the case or lid of the housing of the electrical box and the electrical connection box in which the packing is integrated on one side of the lid. 芯材にエンジニアリング・プラスチックを用い、熱可塑性エラストマー樹脂をインサート成形(射出成形)で熱溶着させ一体化することで、エンジニアリング・プラスチックにより形状を安定して保持し、熱可塑性エラストマー樹脂の弾力性により防水機能を備えたことを特長とするパッキン。 By using engineering plastic for the core material and heat-welding and integrating the thermoplastic elastomer resin by insert molding (injection molding), the shape is stably maintained by the engineering plastic, and the elasticity of the thermoplastic elastomer resin makes it possible. Packing featuring a waterproof function. 前記3のパッキンに位置決め、脱落防止用の穴又はボスを設け、組立時の作業性を迅速に簡便にできることを特長としたパッキン。 A packing characterized in that the packing of 3 is provided with a hole or a boss for positioning and prevention of falling off, so that workability during assembly can be made quickly and easily. 前記3のパッキンのシーリング部開口角及び開口側面に密着するようにリブを環状に設け、平面だけでなく、斜面や曲面でも気密性や防水性を高めたことを特長とするパッキン。 The packing is characterized in that ribs are provided in an annular shape so as to be in close contact with the opening angle and the opening side surface of the sealing portion of the packing of the above 3, and the airtightness and waterproofness are improved not only on a flat surface but also on a slope or a curved surface.
JP2020091760A 2020-04-20 2020-04-20 Electrical component box and electrical junction box with high waterproofness and airtightness by integrating packing with case or lid of enclosure Pending JP2021174978A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102542114B1 (en) * 2022-02-21 2023-07-28 주식회사 멜템 Electric switchgear for air conditioning with improved installation performance, wear resistance, airtightness, packing assembly and sound insulation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102542114B1 (en) * 2022-02-21 2023-07-28 주식회사 멜템 Electric switchgear for air conditioning with improved installation performance, wear resistance, airtightness, packing assembly and sound insulation

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