JP4501585B2 - Electrical circuit parts and housing with waterproof structure - Google Patents

Electrical circuit parts and housing with waterproof structure Download PDF

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JP4501585B2
JP4501585B2 JP2004230944A JP2004230944A JP4501585B2 JP 4501585 B2 JP4501585 B2 JP 4501585B2 JP 2004230944 A JP2004230944 A JP 2004230944A JP 2004230944 A JP2004230944 A JP 2004230944A JP 4501585 B2 JP4501585 B2 JP 4501585B2
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packing
case
opening
lid
positioning
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JP2006049701A (en
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清浩 深谷
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Aisin Corp
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Aisin Seiki Co Ltd
Aisin Corp
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Description

本発明は、防水構造を持つ電気回路部品および筐体に関する。   The present invention relates to an electric circuit component having a waterproof structure and a housing.

コンピュータやセンサなどを車載用として用いる場合には、ケースの内部に水が入らないように防水構造を必要とする場合がある。   When a computer, a sensor, or the like is used for a vehicle, a waterproof structure may be required so that water does not enter the case.

特許文献１には、樹脂モールドされたハウジングと、防水空間形成部と、防水空間内に設けられた内部回路を有し防水用接着剤１１が充塞されている構造が開示されている。この構造では組付け時に接着剤の充填設備が必要で且つ、接着剤の硬化時間が必要になるなどの問題が発生する。   Patent Document 1 discloses a structure having a resin-molded housing, a waterproof space forming portion, and an internal circuit provided in the waterproof space, which is filled with a waterproof adhesive 11. With this structure, problems such as the need for an adhesive filling facility at the time of assembly and the need for an adhesive curing time occur.

また、特許文献２には、箱型に形成された本体と蓋との間にゴムパッキン２２、４３を介在させ防水筐体とした温度変化の激しい環境下でも防水性を良好に保つ構造が開示されている。この構造においては、ゴムパッキンは箱が大きくなると、当然ゴムパッキンも大きくなる、この場合ゴムパッキンはゴムのその性質故 剛性が低く、屈曲性も大きい為組付け時の取り扱いに時間がかかる。   Patent Document 2 discloses a structure that maintains a good waterproof property even in an environment where the temperature changes drastically as a waterproof housing by interposing rubber packings 22 and 43 between a box-shaped main body and a lid. Has been. In this structure, the rubber packing naturally becomes larger as the box becomes larger. In this case, the rubber packing has a low rigidity due to its properties and has a great flexibility, so it takes time to handle it during assembly.

パッキンについては、特許文献３に示すような基材１２に発泡ゴム１３を被着した構造のガスケットがある。
特開２００３−２８４２１８号公報（［００２６〜００２７］、図３参照） 特開平０６−２１６５４４号公報（［０００８］、［００１２］図２、図３参照） 特開平０８−１０５５４７号公報 As for packing, there is a gasket having a structure in which a foam rubber 13 is attached to a base 12 as shown in Patent Document 3.
JP 2003-284218 A (refer to [0026 to 0027] and FIG. 3) Japanese Patent Laid-Open No. 06-216544 (see [0008], [0012] FIGS. 2 and 3) Japanese Patent Laid-Open No. 08-105547

本発明は、防水性を確保した上で、電気回路部品および筐体を簡単に製造できるようにすることを課題とする。   An object of the present invention is to make it possible to easily manufacture an electric circuit component and a housing while ensuring waterproofness.

上記した課題を解決するために講じた技術的手段は、内部に電気回路を備え、開口部を備えるケースと、ケースの開口部を覆う蓋と、ケース及び蓋の間に挟むパッキンとを備える電気回路部品において、パッキンは弾性シール材と強度部材を組み合わせた構造を有し、ケースはパッキンが当接するシール面を有し、開口部の外周の少なくとも一部にパッキンを位置決めするガイド部を設けるとともに、ガイド部に開口部の内側へ向けて傾斜する傾斜部を設け、蓋はパッキンが当接するシール面を有するとともに、組み付け後にパッキンを越えてケースの開口部内へ入り込む部分に、パッキンを位置決めする傾斜面を設けたことである。これによれば、ケースと蓋との間の隙間はパッキンの弾性シール材により液密的にシールされるので、防水構造とできる。また、パッキンには強度部材が備わっており、かつ、ケースはパッキンが当接するシール面を有し、開口部の外周の少なくとも一部にパッキンを位置決めするガイド部を設けるとともに、ガイド部に開口部の内側へ向けて傾斜する傾斜部を設けているので、ケースの開口部にパッキンを入れると、パッキンは傾斜部に沿って入り込み、所定の位置に位置決めされつつシール面に配置される。また、蓋はパッキンが当接するシール面を有するとともに、組み付け後にパッキンを越えてケースの開口部内へ入り込む部分に、パッキンを位置決めする傾斜面を設けている。これによれば、蓋とケースを組み付ける際に、間にパッキンをおいておくだけで、パッキンは蓋の傾斜面に沿ってシール面に当接されるとともに、ケースの傾斜部に沿って入り込み、所定の位置に位置決めされつつ配置される。 The technical means taken in order to solve the above-described problems includes an electric circuit including an electric circuit therein, a case including an opening, a lid covering the opening of the case, and a packing sandwiched between the case and the lid. In a circuit component, the packing has a structure in which an elastic seal material and a strength member are combined, the case has a seal surface with which the packing abuts, and a guide portion for positioning the packing is provided on at least a part of the outer periphery of the opening. The guide part is provided with an inclined part that inclines toward the inside of the opening , and the lid has a sealing surface with which the packing abuts, and an inclination for positioning the packing in the part that enters the opening of the case beyond the packing after assembly. Is to provide a surface . According to this, since the gap between the case and the lid is liquid-tightly sealed by the elastic sealing material of the packing, a waterproof structure can be obtained. In addition, the packing is provided with a strength member, and the case has a seal surface with which the packing abuts, and a guide portion for positioning the packing is provided on at least a part of the outer periphery of the opening portion , and the opening portion is provided in the guide portion. Since the inclined portion inclined toward the inner side is provided, when packing is inserted into the opening of the case, the packing enters along the inclined portion and is disposed on the seal surface while being positioned at a predetermined position. In addition, the lid has a seal surface against which the packing abuts, and an inclined surface for positioning the packing is provided at a portion that passes the packing and enters the opening of the case after assembly. According to this, when assembling the lid and the case, just by leaving a packing in between, the packing is brought into contact with the sealing surface along the inclined surface of the lid and enters along the inclined portion of the case, It is arranged while being positioned at a predetermined position.

更に、ケースを一面のみ開放された箱状とし、蓋は回路基板が固定されたコネクタとした。これによれば、コネクタとケースの開口部との間のみ防水構造とすればよく、コネクタとケースを固定する際に、パッキンを置くだけで、電気回路部品の防水性能を得ることができるので、安価に製造できる。   Furthermore, the case was a box with only one side open, and the lid was a connector to which the circuit board was fixed. According to this, it is only necessary to have a waterproof structure between the connector and the opening of the case, and when fixing the connector and the case, it is possible to obtain the waterproof performance of the electric circuit parts simply by placing the packing. Can be manufactured at low cost.

また、開口部を備えるケースと、該ケースの開口部を覆う蓋と、前記ケース及び蓋の間に挟むパッキンとを備える筐体において、パッキンは弾性シール材と強度部材を組み合わせた構造を有し、ケースはパッキンが当接するシール面を有し、開口部の外周の少なくとも一部にパッキンを位置決めするガイド部を設けるとともに、ガイド部に開口部の内側へ向けて傾斜する傾斜部を設け、蓋はパッキンが当接するシール面を有するとともに、組み付け後にパッキンを超えてケースの開口部内へ入り込む部分に、パッキンを位置決めする傾斜面を設けた。これによれば、ケースと蓋との間の隙間はパッキンの弾性シール材により液密的にシールされるので、防水構造とできる。また、パッキンには強度部材が備わっており、かつ、ケース、前記パッキンが当接するシール面を有し、前記開口部の外周の少なくとも一部にパッキンを位置決めするガイド部を設けるとともに、ガイド部に開口部の内側へ向けて傾斜する傾斜部を設けているので、ケースの開口部にパッキンを入れると、パッキンは傾斜部に沿って入り込み、所定の位置に位置決めされつつシール面に配置される。また、蓋はパッキンが当接するシール面を有するとともに、組み付け後にパッキンを超えてケースの開口部内へ入り込む部分に、パッキンを位置決めする傾斜面を設けている。これによれば、蓋とケースを組み付ける際に、間にパッキンをおいておくだけで、パッキンは蓋の傾斜面に沿ってシール面に当接されるとともに、ケースの傾斜部に沿って入り込み、所定の位置に位置決めされつつ配置される。 Further, in a casing including a case having an opening, a lid covering the opening of the case, and a packing sandwiched between the case and the lid, the packing has a structure in which an elastic seal material and a strength member are combined. , case packing has a contact with the sealing surface, provided with a guide portion for positioning the packing at least a portion of the periphery of the opening, it is provided an inclined portion inclined toward the inside of the opening in the guide portion, the lid Has a seal surface against which the packing abuts, and an inclined surface for positioning the packing is provided at a portion that enters the opening of the case beyond the packing after assembly . According to this, since the gap between the case and the lid is liquid-tightly sealed by the elastic sealing material of the packing, a waterproof structure can be obtained. The packing is provided with a strength member, and has a case , a seal surface with which the packing abuts, and a guide portion for positioning the packing is provided on at least a part of the outer periphery of the opening. Since the inclined portion inclined toward the inside of the opening portion is provided, when packing is inserted into the opening portion of the case, the packing enters along the inclined portion and is disposed on the seal surface while being positioned at a predetermined position. In addition, the lid has a seal surface with which the packing abuts, and an inclined surface for positioning the packing is provided at a portion that enters the opening of the case beyond the packing after assembly. According to this, when assembling the lid and the case, just by leaving a packing in between, the packing is brought into contact with the sealing surface along the inclined surface of the lid and enters along the inclined portion of the case, It is arranged while being positioned at a predetermined position.

本発明によれば、常にケースと蓋の幅の狭いシール面をパッキンを介して自動的に位置あわせすることができるので、特別な保持冶具や設備を使うことなく、誤組み付けを防止できるとともに防水効果を確保することができる。 According to the present invention, the narrow sealing surface of the case and the lid can always be automatically aligned via the packing, so that it is possible to prevent erroneous assembly without using a special holding jig or equipment and to be waterproof. An effect can be secured.

本発明に従った実施の形態を図面に基づいて説明する。   Embodiments according to the present invention will be described with reference to the drawings.

図１及び２はパッキン４を示している。パッキン４は内側が中空のリング状で平坦な板状の形状をしている。パッキン４はねじ止めのために３つの穴部４ｂを備える。パッキン４は、強度部材である薄い鋼板、あるいは樹脂で形成された板１０の両面に、防水性を損なわない弾性を有するシール材１１が焼き付けまたはコーティングされていることで形成されている。シール材１１は、たとえばゴムを用いる。このため、図２の左右方向からは弾性を有し、ねじれやよじれの起こりにくい構造になっている。   1 and 2 show the packing 4. The packing 4 has a flat plate shape with a hollow ring inside. The packing 4 includes three holes 4b for screwing. The packing 4 is formed by baking or coating a thin steel plate, which is a strength member, or both surfaces of a plate 10 made of resin, which has elasticity that does not impair waterproofness. For example, rubber is used as the sealing material 11. For this reason, the structure has elasticity from the left-right direction in FIG. 2 and is less likely to be twisted or kinked.

図３は電気回路部品の組み付け図を示している。ケース５は開口部５ａを有する箱状の部材で、たとえば、樹脂で成型されている。開口部５ａの蓋となるコネクタ１は回路基板３の配線と電気的に接続されたターミナルを備えており、図示しないメス側コネクタをはめ込みうる形状をしている。コネクタ１と回路基板３とはねじ２により固定されている。このように、コネクタ１と回路基板３が一体となった状態で、ケース５の開口部５ａに、回路基板３が内部に密閉されるように組みつけられ、ねじ９によりケース５とコネクタ１が固定される。この際、ケース５とコネクタ１の間には、前述のパッキン４が介挿される。   FIG. 3 shows an assembly diagram of electric circuit components. The case 5 is a box-shaped member having an opening 5a, and is molded from, for example, resin. The connector 1 serving as a lid of the opening 5a includes a terminal electrically connected to the wiring of the circuit board 3, and has a shape capable of fitting a female connector (not shown). The connector 1 and the circuit board 3 are fixed with screws 2. In this manner, in a state where the connector 1 and the circuit board 3 are integrated, the case 5 and the connector 1 are assembled to the opening 5a of the case 5 so that the circuit board 3 is hermetically sealed. Fixed. At this time, the above-described packing 4 is inserted between the case 5 and the connector 1.

ケース５の開口部５ａには、図４に示すような、ガイド部７と傾斜部６が設けられている。ガイド部７はパッキン４の外周形状に合わせて製造されている。傾斜部６は、ケース５の開口部の外周の少なくとも一部に設けられ内側へ向けて傾斜している。パッキン４は図示上下方向に対して剛性が高いので、パッキン４をガイド部に挿入する際、パッキン４の端部が傾斜部６に当たると、パッキン４はガイド部７に収まるように移動する。このため、パッキン４はきれいにガイド部７に収まる。   The opening 5a of the case 5 is provided with a guide part 7 and an inclined part 6 as shown in FIG. The guide part 7 is manufactured according to the outer peripheral shape of the packing 4. The inclined portion 6 is provided on at least a part of the outer periphery of the opening of the case 5 and is inclined inward. Since the packing 4 has high rigidity in the vertical direction in the figure, when the packing 4 is inserted into the guide portion, the packing 4 moves so as to be accommodated in the guide portion 7 when the end portion of the packing 4 hits the inclined portion 6. For this reason, the packing 4 fits in the guide part 7 neatly.

また、図３に示すように、コネクタ１の、組み付け後にパッキン４を超えて内側へ入り込む部分に、傾斜面８を設けている。これによれば、コネクタ１とケース５を組み付ける際に、間にパッキン４をおいておくと、パッキン４は傾斜面８で押されて、コネクタ１のシール面１ａに当たるように押される。その上で、ケース５の傾斜部６に沿って入り込むので、コネクタ１のシール面１ａとケース５のシール面５ｂとの間に正確にパッキン４が自動的に配置される。この状態でねじ９によりコネクタ１とケース５が固定されるので、高い防水効果を得ることができる。ねじ９はパッキン４の穴部４ｂを通過する。   Moreover, as shown in FIG. 3, the inclined surface 8 is provided in the part which goes into the inner side exceeding the packing 4 after the assembly | attachment of the connector 1. As shown in FIG. According to this, when the packing 4 is placed between the connector 1 and the case 5, the packing 4 is pushed by the inclined surface 8 and pushed so as to hit the seal surface 1 a of the connector 1. In addition, since it enters along the inclined portion 6 of the case 5, the packing 4 is automatically arranged accurately between the seal surface 1 a of the connector 1 and the seal surface 5 b of the case 5. In this state, since the connector 1 and the case 5 are fixed by the screw 9, a high waterproof effect can be obtained. The screw 9 passes through the hole 4 b of the packing 4.

なお、パッキン４は、シール材１１が焼き付けまたはコーティングされていることで形成したが、たとえば、強度部材である薄板の両面にゴムを貼り付ける構造でもよい。   The packing 4 is formed by baking or coating the sealing material 11. However, for example, a structure in which rubber is attached to both surfaces of a thin plate that is a strength member may be used.

上記実施態様では、コネクタ１をケース５の蓋としたが、コネクタとは別の部材でケースに蓋を設ける必要がある場合は、別に蓋を設け、この蓋とケースの間に本実施態様のパッキンを用いるようにしてもよい。   In the above embodiment, the connector 1 is the lid of the case 5. However, when it is necessary to provide a lid on the case with a member different from the connector, a lid is provided separately, and this embodiment is provided between the lid and the case. A packing may be used.

本実施態様においては、コネクタ１とケース５を固定する際にパッキン４を間におくだけで自動的にパッキンの位置あわせができるので、特別な保持冶具や設備を用いる必要がなく、機械組み付けを用いることもできる。   In this embodiment, when the connector 1 and the case 5 are fixed, the packing can be automatically aligned by simply placing the packing 4 between them, so there is no need to use a special holding jig or equipment, and mechanical assembly is possible. It can also be used.

本発明の実施態様のパッキンを示す正面図である。It is a front view which shows the packing of the embodiment of this invention. 図１のパッキンの断面図である。It is sectional drawing of the packing of FIG. 本発明の実施態様である電気回路部品の組み付け図である。It is an assembly drawing of the electric circuit component which is an embodiment of the present invention. 図３のａ-ａ断面図である。It is aa sectional drawing of FIG.

符号の説明Explanation of symbols

１ コネクタ（蓋）
２ ねじ
３ 回路基板
４ パッキン
４ｂ 穴部
５ ケース
５ａ 開口部
５ｂ シール面
６ 傾斜部
７ ガイド部
８ 傾斜面
９ ねじ
１０ 板（強度部材）
１１ シール材
１ａ シール面
1 Connector (lid)
2 Screw 3 Circuit board 4 Packing 4b Hole 5 Case 5a Opening 5b Seal surface 6 Inclined portion 7 Guide portion 8 Inclined surface 9 Screw 10 Plate (Strength member)
11 Seal material 1a Seal surface

Claims (3)

内部に電気回路を備え、開口部を備えるケースと、該ケースの開口部を覆う蓋と、前記ケース及び蓋の間に挟むパッキンとを備える電気回路部品において、
前記パッキンは弾性シール材と強度部材を組み合わせた構造を有し、
前記ケースは前記パッキンが当接するシール面を有し、前記開口部の外周の少なくとも一部に前記パッキンを位置決めするガイド部を設けるとともに、前記ガイド部に前記開口部の内側へ向けて傾斜する傾斜部を設け、
前記蓋は前記パッキンが当接するシール面を有するとともに、組み付け後に前記パッキンを越えて前記ケースの前記開口部内へ入り込む部分に、前記パッキンを位置決めする傾斜面を設けたことを特徴とする防水構造を持つ電気回路部品。 In an electric circuit component comprising an electric circuit inside, a case having an opening, a lid covering the opening of the case, and a packing sandwiched between the case and the lid,
The packing has a structure combining an elastic sealing material and a strength member,
The case has a seal surface with which the packing abuts, and a guide portion for positioning the packing is provided on at least a part of the outer periphery of the opening portion, and the guide portion is inclined toward the inside of the opening portion. Set up a section ,
The lid has a sealing surface against which the packing abuts, and a waterproof structure characterized in that an inclined surface for positioning the packing is provided in a portion that enters the opening of the case beyond the packing after assembly. Electric circuit parts with. 請求項１において、前記ケースは一面のみ開放された箱状とし、前記蓋は回路基板が固定されたコネクタであることを特徴とする防水構造を持つ電気回路部品。 Oite to claim 1, wherein the case is only one side opened box shape, an electric circuit component having a waterproof structure the lid, which is a connector in which the circuit board is fixed. 開口部を備えるケースと、該ケースの開口部を覆う蓋と、前記ケース及び蓋の間に挟むパッキンとを備える筐体において、In a housing comprising a case having an opening, a lid covering the opening of the case, and a packing sandwiched between the case and the lid,
前記パッキンは弾性シール材と強度部材を組み合わせた構造を有し、The packing has a structure combining an elastic sealing material and a strength member,
前記ケースは前記パッキンが当接するシール面を有し、前記開口部の外周の少なくとも一部に前記パッキンを位置決めするガイド部を設けるとともに、前記ガイド部に前記開口部の内側へ向けて傾斜する傾斜部を設け、The case has a seal surface with which the packing abuts, and a guide portion for positioning the packing is provided on at least a part of the outer periphery of the opening portion, and the guide portion is inclined toward the inside of the opening portion. Set up a section,
前記蓋は前記パッキンが当接するシール面を有するとともに、組み付け後に前記パッキンを越えて前記ケースの前記開口部内へ入り込む部分に、前記パッキンを位置決めする傾斜面を設けたことを特徴とする防水構造を持つ筐体。The lid has a sealing surface against which the packing abuts, and a waterproof structure characterized in that an inclined surface for positioning the packing is provided in a portion that enters the opening of the case beyond the packing after assembly. Enclosure with.
JP2004230944A 2004-08-06 2004-08-06 Electrical circuit parts and housing with waterproof structure Expired - Fee Related JP4501585B2 (en)

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JP2004230944A JP4501585B2 (en) 2004-08-06 2004-08-06 Electrical circuit parts and housing with waterproof structure

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KR101887734B1 (en) 2015-01-23 2018-08-10 니혼도꾸슈도교 가부시키가이샤 Cover attachment structure of case
JP6685259B2 (en) * 2017-06-15 2020-04-22 日立建機株式会社 Rolling control equipment for rolling machines

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JPS58173872U (en) * 1982-05-17 1983-11-21 日産ディーゼル工業株式会社 rubber gasket
JPS6055743U (en) * 1983-09-23 1985-04-18 トヨタ自動車株式会社 Mounting structure of two parts
JPH08185920A (en) * 1995-01-05 1996-07-16 Nippondenso Co Ltd Electrical connecting structure for circuit board
JPH0945556A (en) * 1995-07-28 1997-02-14 Tamagawa Seiki Co Ltd Pressure resistant structure of differential transformer
JP2000009227A (en) * 1998-06-23 2000-01-11 Japan Aviation Electronics Ind Ltd Waterproof structure for box
JP2000138044A (en) * 1998-10-30 2000-05-16 Kenwood Corp Battery case
JP2001214976A (en) * 2000-01-31 2001-08-10 Canon Inc Member butting structure and electronic equipment using the same

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Publication number Priority date Publication date Assignee Title
JPS58173872U (en) * 1982-05-17 1983-11-21 日産ディーゼル工業株式会社 rubber gasket
JPS6055743U (en) * 1983-09-23 1985-04-18 トヨタ自動車株式会社 Mounting structure of two parts
JPH08185920A (en) * 1995-01-05 1996-07-16 Nippondenso Co Ltd Electrical connecting structure for circuit board
JPH0945556A (en) * 1995-07-28 1997-02-14 Tamagawa Seiki Co Ltd Pressure resistant structure of differential transformer
JP2000009227A (en) * 1998-06-23 2000-01-11 Japan Aviation Electronics Ind Ltd Waterproof structure for box
JP2000138044A (en) * 1998-10-30 2000-05-16 Kenwood Corp Battery case
JP2001214976A (en) * 2000-01-31 2001-08-10 Canon Inc Member butting structure and electronic equipment using the same

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