JP2003318557A - Ventilation member and ventilation housing using the same - Google Patents

Ventilation member and ventilation housing using the same

Info

Publication number
JP2003318557A
JP2003318557A JP2002124416A JP2002124416A JP2003318557A JP 2003318557 A JP2003318557 A JP 2003318557A JP 2002124416 A JP2002124416 A JP 2002124416A JP 2002124416 A JP2002124416 A JP 2002124416A JP 2003318557 A JP2003318557 A JP 2003318557A
Authority
JP
Japan
Prior art keywords
ventilation
ventilation member
housing
support
member according
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
JP2002124416A
Other languages
Japanese (ja)
Inventor
Hiroyuki Nishii
弘行 西井
Hiroaki Masuko
浩明 益子
Toshiteru Yanagi
俊輝 柳
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.)
Nitto Denko Corp
Original Assignee
Nitto Denko 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 Nitto Denko Corp filed Critical Nitto Denko Corp
Priority to JP2002124416A priority Critical patent/JP2003318557A/en
Publication of JP2003318557A publication Critical patent/JP2003318557A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilation member to be easily secured and a ventilation housing using the same. <P>SOLUTION: There is provided a ventilation member 1 including a ventilation film 5 through which a gas passing through an opening filters out with the ventilation member secured to the opening of the housing, wherein a supporting body 2 for supporting the ventilation film 5 is further included and moreover there is provided a ventilation housing using this ventilation member. <P>COPYRIGHT: (C)2004,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、自動車用電装部品
などの筐体に固着される通気部材、これを用いた通気筐
体に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation member fixed to a housing such as an electric component for an automobile, and a ventilation housing using the ventilation member.

【０００２】[0002]

【従来の技術】ＥＣＵ（ｅｌｅｃｔｒｏｎｉｃ ｃｏｎ
ｔｒｏｌ ｕｎｉｔ）、ランプ、モーター、各種センサ
ー、圧力スイッチ、アクチュエーターなどの自動車用電
装部品、携帯電話、カメラ、電気剃刀、電動ハブラシお
よび屋外用途のランプなどの各種筐体には、通気部材が
装着されている。2. Description of the Related Art ECU (electronic con)
Ventilation members are installed in various housings such as automotive electrical components such as control units, lamps, motors, various sensors, pressure switches, actuators, mobile phones, cameras, electric razors, electric toothbrushes and lamps for outdoor use. ing.

【０００３】上記通気部材は、筐体の内部へ水や粉塵が
侵入することを防止しつつ、音声の伝搬、筐体内部で発
生したガスの放出、温度変化による筐体内部の圧力変化
の緩和など、装着される筐体の種類に応じて種々の役割
を果たしている。The above-mentioned ventilation member prevents water and dust from entering the inside of the housing, and at the same time mitigates sound propagation, release of gas generated inside the housing, and pressure change inside the housing due to temperature change. Etc. play various roles depending on the type of the mounted case.

【０００４】図１５（ａ）および（ｂ）に、通気部材が
装着された筐体（通気筐体）の一例を示す。図１５に示
す例において、通気部材５７は通気膜５５に補強材５６
を積層した構造である。通気膜５５には、例えば、ポリ
テトラフルオロエチレン（ＰＴＦＥ）多孔体が、補強材
５６には、例えば，不織布が用いられる。（特開２００
１−１６８５４３号公報に記載）。このような通気部材
によれば、コンパクトで低価格な通気筐体を得ることが
できる。FIGS. 15 (a) and 15 (b) show an example of a case (a ventilation case) in which a ventilation member is mounted. In the example shown in FIG. 15, the ventilation member 57 includes the ventilation film 55 and the reinforcement member 56.
Is a laminated structure. For example, a polytetrafluoroethylene (PTFE) porous body is used for the gas permeable membrane 55, and a non-woven fabric is used for the reinforcing material 56. (JP-A-200
No. 1-168543). With such a ventilation member, a compact and low-cost ventilation housing can be obtained.

【０００５】[0005]

【発明が解決しようとする課題】しかしながら、上記し
た通気部材５７には以下の問題点がある。However, the above-mentioned ventilation member 57 has the following problems.

【０００６】通気部材５７を、加熱溶着または超音波溶
着などにより筐体７に固着する場合、通気部材５７が破
損しやすいため、温度、圧力、周波数などの条件設定に
関して高度な技術が必要となり、専用の治具などが必要
とされることが多い。例えば、温度や圧力が適正値より
低い場合は、溶着不足による通気部材５７の剥がれや浮
きが生じやすく、温度や圧力が適正値より高い場合は、
通気膜５５の気孔の潰れや、筐体７のバリが生じ易い。
また、治具と通気部材５７の平行度が厳密でない場合、
片あたりなどが生じ易い。上記のような溶着不良がある
と、溶着が不十分な部分から水や粉塵などが筐体内部へ
浸入するおそれや、十分な透過面積が確保できないおそ
れもある。また、通気部材５７は薄く軽いため、ハンド
リング性が悪く、通気部材５７を筐体に固着するプロセ
スの自動化が容易でない。このような問題を考えると、
従来の通気部材５７の固着は必ずしも簡便とは言えな
い。When the ventilation member 57 is fixed to the housing 7 by heat welding, ultrasonic welding, or the like, the ventilation member 57 is easily damaged, so that a high level technique is required for setting conditions such as temperature, pressure, and frequency. Dedicated jigs are often required. For example, if the temperature or pressure is lower than the proper value, the ventilation member 57 is likely to peel or float due to insufficient welding. If the temperature or pressure is higher than the proper value,
Crushing of the pores of the gas permeable membrane 55 and burr of the housing 7 are likely to occur.
When the parallelism between the jig and the ventilation member 57 is not strict,
It is easy to get one side. If there is a poor welding as described above, there is a risk that water, dust, and the like will enter the inside of the housing from the insufficiently welded portion, or that a sufficient permeation area cannot be secured. Further, since the ventilation member 57 is thin and light, the handling property is poor, and it is not easy to automate the process of fixing the ventilation member 57 to the housing. Given these problems,
It is not always easy to fix the conventional ventilation member 57.

【０００７】[0007]

【課題を解決するための手段】本発明の通気部材は、筐
体の開口部に固着された状態で、前記開口部を通過する
気体が透過する通気膜を含む通気部材であって、前記通
気膜を支持する支持体をさらに含むことを特徴とする。A ventilation member according to the present invention is a ventilation member including a ventilation film that allows a gas passing through the opening to pass therethrough while being fixed to the opening of the housing. It is characterized in that it further comprises a support for supporting the membrane.

【０００８】本発明の通気部材では、支持体を介して通
気膜を筐体に固着することができるので、通気部材の筐
体への固着が容易である。In the ventilation member of the present invention, since the ventilation film can be fixed to the housing through the support, the ventilation member can be easily fixed to the housing.

【０００９】また、本発明の通気筐体は、上記した通気
部材が、筐体の開口部に固着されていることを特徴とす
る。Further, the ventilation housing of the present invention is characterized in that the above-mentioned ventilation member is fixed to the opening of the housing.

【００１０】本発明の通気筐体では、筐体の少なくとも
通気部材が当接される面が熱可塑性樹脂から構成される
ことが好ましい。In the ventilation housing of the present invention, it is preferable that at least a surface of the housing which is in contact with the ventilation member is made of a thermoplastic resin.

【００１１】また、本発明の通気筐体では、筐体の段差
構造に通気部材の少なくとも一部が嵌め込まれて固着さ
れていることが好ましい。Further, in the ventilation housing of the present invention, it is preferable that at least a part of the ventilation member is fitted and fixed to the step structure of the housing.

【００１２】また、本発明の通気筐体では、通気部材
が、筐体の開口部に収まるように固着されていることが
好ましい。Further, in the ventilation housing of the present invention, it is preferable that the ventilation member is fixed so as to fit in the opening of the housing.

【００１３】[0013]

【発明の実施の形態】本発明における好ましい実施の形
態を、図面を参照しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described with reference to the drawings.

【００１４】（実施の形態１）図１〜図３を用いて、本
発明の通気部材の一例について説明する。図１（ａ）お
よび（ｂ）に示す通気部材１は、支持体２の中心に貫通
孔３が形成されており、貫通孔３が通気膜５によって被
覆されている。すなわち、貫通孔３を有する支持体２
と、貫通孔３を覆う通気膜５とを含んでおり、所定の位
置から通気膜５を通過した気体が再び通気膜５を通過す
ることなく、上記所定の位置に戻ることができるよう
に、支持体２と通気膜５とが配置されている。(Embodiment 1) An example of the ventilation member of the present invention will be described with reference to FIGS. In the ventilation member 1 shown in FIGS. 1A and 1B, a through hole 3 is formed at the center of a support 2, and the through hole 3 is covered with a ventilation film 5. That is, the support 2 having the through holes 3
And a gas permeable membrane 5 that covers the through hole 3 so that the gas that has passed through the gas permeable membrane 5 from a predetermined position can return to the above predetermined position without passing through the gas permeable membrane 5 again. The support 2 and the gas permeable membrane 5 are arranged.

【００１５】支持体２の一方の面には、貫通孔３を囲む
ように固着面４が形成されている。図１（ｃ）に示すよ
うに、この固着面４は、貫通孔３と開口部８とが連通す
るように通気部材１と筐体７とが一体化されたときに、
筐体７の被固着面９と当接するように形成されている。
図１（ｃ）に示したように、典型的な被固着面９は平面
であるので、固着面４も同一平面内に存在するように形
成するとよい。A fixing surface 4 is formed on one surface of the support 2 so as to surround the through hole 3. As shown in FIG. 1C, when the ventilation member 1 and the housing 7 are integrated so that the through hole 3 and the opening 8 communicate with each other, the fixing surface 4 is
It is formed so as to come into contact with the fixed surface 9 of the housing 7.
As shown in FIG. 1C, since the typical adhered surface 9 is a flat surface, the adhered surface 4 may be formed so as to be in the same plane.

【００１６】固着面４の大きさは、特に限定されない
が、十分な固着強度が得られるだけの接合面積を有する
ことが好ましい。固着強度の確保のため、固着面４と被
固着面９との接合面積は、０．０１ｃｍ2以上とすると
よい。加熱溶着または超音波溶着により通気部材１が筐
体７に固着される場合は、図１（ｂ）に示したように、
固着面４に溶着用リブ４ａを形成することで、高い気密
性を得ることもできる。The size of the fixing surface 4 is not particularly limited, but it is preferable that the fixing surface 4 has a joining area enough to obtain sufficient fixing strength. In order to secure the fixing strength, the bonding area between the fixing surface 4 and the adhered surface 9 is preferably 0.01 cm 2 or more. When the ventilation member 1 is fixed to the housing 7 by heat welding or ultrasonic welding, as shown in FIG.
By forming the welding rib 4a on the fixing surface 4, high airtightness can be obtained.

【００１７】また、図２（ａ）および（ｂ）に示すよう
に、固着面４および被固着面９いずれか一方または双方
に段差構造を設けることで、筐体７内外への通気部材１
の出っ張りを少なくすることもできる。段差構造を利用
すれば、一方の面（図２（ｂ））または双方の面（図２
（ａ））において、通気部材１と筐体７とを面一に配置
できる。Further, as shown in FIGS. 2A and 2B, a step structure is provided on either or both of the fixed surface 4 and the fixed surface 9, so that the ventilation member 1 to the inside and outside of the housing 7 is provided.
It is also possible to reduce the protrusion. If the step structure is used, one surface (FIG. 2B) or both surfaces (FIG.
In (a), the ventilation member 1 and the housing 7 can be arranged flush with each other.

【００１８】支持体２の形状は、特に限定されないが、
図１（ａ）〜（ｃ）に示すように、平板であってもよ
い。この平板は、筐体７に形成された開口部８よりも大
きい径を有し、開口部８を覆うように設置できる。The shape of the support 2 is not particularly limited, but
It may be a flat plate as shown in FIGS. This flat plate has a larger diameter than the opening 8 formed in the housing 7, and can be installed so as to cover the opening 8.

【００１９】貫通孔３の大きさは、通気部材１が固着さ
れる筐体の種類および通気膜５の透気量とを考慮して適
宜決定されるが、その面積（気体の透過方向に対して直
交する面の面積）を０．００１〜１００ｃｍ2とすると
よい。The size of the through hole 3 is appropriately determined in consideration of the type of the case to which the ventilation member 1 is fixed and the air permeability of the gas permeable membrane 5, but its area (with respect to the gas permeation direction) Area of the surface orthogonal to each other) is preferably 0.001 to 100 cm 2 .

【００２０】支持体２は、特に限定されないが、熱可塑
性樹脂を含むことが好ましい。熱可塑性樹脂としては、
例えば、ポリブチレンテレフタレート（ＰＢＴ）、ポリ
フェニレンスルフィド（ＰＰＳ）、ポリスルホン（Ｐ
Ｓ）、ポリプロピレン（ＰＰ）、ポリエチレン（Ｐ
Ｅ）、ＡＢＳ樹脂、熱可塑性エラストマーなどまたはこ
れらの複合材が用いられる。これらの材料を用いて形成
した支持体は、加熱溶着または超音波溶着により通気部
材を筐体へ固着する場合に、温度、圧力、周波数などの
条件設定に関する高度な技術や、専用の治具などが無く
ても、通気部材を筐体に容易に固着することができる。
したがって、少なくとも固着面は、熱可塑性樹脂により
構成するとよい。The support 2 is not particularly limited, but preferably contains a thermoplastic resin. As a thermoplastic resin,
For example, polybutylene terephthalate (PBT), polyphenylene sulfide (PPS), polysulfone (P
S), polypropylene (PP), polyethylene (P
E), ABS resin, thermoplastic elastomer or the like or a composite material thereof is used. The support formed using these materials has advanced technology for setting conditions such as temperature, pressure, frequency, etc. when fixing the ventilation member to the housing by heat welding or ultrasonic welding, a special jig, etc. Even if there is not, the ventilation member can be easily fixed to the housing.
Therefore, at least the fixing surface may be made of a thermoplastic resin.

【００２１】また、通気部材が固着される筐体が、温度
変化が大きな環境下で使用されるものである場合には、
支持体の材料として、熱による劣化が少ない材料、例え
ば、熱可塑性エラストマー以外の上記した熱可塑性樹脂
を用いるのが好ましい。特に、ＰＢＴ、ＰＰＳ、ＰＳな
どが好適である。When the case to which the ventilation member is fixed is used in an environment where the temperature changes greatly,
As the material of the support, it is preferable to use a material that is less likely to be deteriorated by heat, for example, the above-mentioned thermoplastic resin other than the thermoplastic elastomer. Particularly, PBT, PPS, PS and the like are suitable.

【００２２】また、支持体の材料を筐体の材料と同系の
熱可塑性樹脂、例えば、筐体７の材料がポリオレフィン
系であれば支持体２についてもポリオレフィン系、とす
れば、支持体２と筐体７の相溶性がよいことにより、高
い固着強度を得ることができる。同種の材料、例えば、
ＰＢＴを支持体および筐体に用いると、さらに相溶性を
高めることができる。Further, if the material of the support is a thermoplastic resin of the same type as the material of the housing, for example, if the material of the housing 7 is a polyolefin-based material, the support 2 is also a polyolefin-based material. Due to the good compatibility of the case 7, high fixing strength can be obtained. Similar materials, for example
When PBT is used for the support and the housing, the compatibility can be further enhanced.

【００２３】上記した熱可塑性樹脂の他に、熱可塑性樹
脂にガラス繊維などの強化材をブレンドした耐熱性材料
や、少なくとも固着面に上記した熱可塑性樹脂を用い、
それ以外の部分には他の材料、例えば金属などを用いた
複合材を用いることもできる。In addition to the above-mentioned thermoplastic resin, a heat-resistant material obtained by blending a thermoplastic resin with a reinforcing material such as glass fiber, or the above-mentioned thermoplastic resin at least on the fixing surface is used.
A composite material using another material, such as a metal, may be used for other portions.

【００２４】支持体２の成形方法としては、特に限定さ
れるものではなく、例えば射出成形や切削などの手法を
用いることができる。The method for molding the support 2 is not particularly limited, and, for example, a method such as injection molding or cutting can be used.

【００２５】通気膜５の材料、構造、形態は、十分な透
気量が確保できるものであれば特に限定されないが、フ
ッ素樹脂多孔体およびポリオレフィン多孔体から選ばれ
る少なくとも１種が好ましい。フッ素樹脂としては、Ｐ
ＴＦＥ、ポリクロロトリフルオロエチレン、テトラフル
オロエチレン−ヘキサフルオロプロピレン共重合体、テ
トラフルオロエチレン−パーフルオロアルキルビニルエ
ーテル共重合体、テトラフルオロエチレン−エチレン共
重合体などが挙げられる。ポリオレフィンのモノマーと
しては、エチレン、プロピレン、４−メチルペンテン−
１、１−ブテンなどが挙げられ、これらのモノマーを単
体で重合したりまたは共重合して得たポリオレフィンを
用いることができる。また、上記したポリオレフィンを
２種類以上ブレンドしたものであってもよいし、層構造
としたものであってもよい。なかでも、小面積でも通気
性が維持でき、筐体内部への水や塵の侵入を阻止する機
能が高いＰＴＦＥ多孔体が、特に好ましい。The material, structure and form of the gas permeable membrane 5 are not particularly limited as long as a sufficient air permeability can be secured, but at least one selected from fluororesin porous bodies and polyolefin porous bodies is preferable. As a fluororesin, P
Examples thereof include TFE, polychlorotrifluoroethylene, tetrafluoroethylene-hexafluoropropylene copolymer, tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, tetrafluoroethylene-ethylene copolymer and the like. As the polyolefin monomer, ethylene, propylene, 4-methylpentene-
1,1-butene and the like can be mentioned, and a polyolefin obtained by polymerizing or copolymerizing these monomers can be used. Further, it may be a blend of two or more of the above-mentioned polyolefins, or may have a layered structure. Among them, a PTFE porous body having a high function of maintaining air permeability even in a small area and having a high function of preventing entry of water and dust into the housing is particularly preferable.

【００２６】図３に示すように、通気膜５に補強材６を
積層することもできる。このように通気膜５の片面に補
強材６を積層する場合、図３に示した面の反対面に積層
しても良い。補強材６の材料、構造、形態は、特に限定
されないが、通気膜５よりも孔径が大きく通気性に優れ
た材料、例えば、織布、不織布、メッシュ、ネット、ス
ポンジ、フォーム、金属多孔体、金属メッシュなどが好
適である。耐熱性が要求される場合は、ポリエステル、
ポリアミド、アラミド樹脂、ポリイミド、フッ素樹脂、
超高分子量ポリエチレン、金属などからなる補強材が好
ましい。なお、図３に示した例では、補強材６は通気膜
５の片面に積層されているが、通気膜５の両面に積層し
てもよい。As shown in FIG. 3, a reinforcing material 6 may be laminated on the gas permeable membrane 5. When the reinforcing material 6 is laminated on one surface of the gas permeable membrane 5 as described above, it may be laminated on the surface opposite to the surface shown in FIG. The material, structure, and form of the reinforcing material 6 are not particularly limited, but a material having a pore size larger than that of the gas permeable membrane 5 and excellent in air permeability, for example, woven cloth, non-woven cloth, mesh, net, sponge, foam, porous metal body, A metal mesh or the like is suitable. If heat resistance is required, polyester,
Polyamide, aramid resin, polyimide, fluororesin,
Reinforcing materials made of ultra high molecular weight polyethylene, metal, etc. are preferable. In the example shown in FIG. 3, the reinforcing material 6 is laminated on one side of the gas permeable membrane 5, but may be laminated on both sides of the gas permeable membrane 5.

【００２７】通気膜５と補強材６を積層する方法は、単
に重ねあわせるだけでもよく、互いに接合してもよい。
接合は、例えば、接着剤ラミネート、熱ラミネート、加
熱溶着、超音波溶着、接着剤による接着などの方法によ
り行うことができる。例えば、熱ラミネートにより積層
する場合は、加熱により補強材６の一部を溶融し接着す
ればよい。また、ホットメルトパウダーのような融着剤
を介在させて接着してもよい。The gas permeable membrane 5 and the reinforcing material 6 may be laminated by simply stacking them or by joining them together.
The joining can be performed by a method such as adhesive lamination, heat lamination, heat welding, ultrasonic welding, or adhesion with an adhesive. For example, in the case of laminating by thermal lamination, it is sufficient to melt and bond a part of the reinforcing material 6 by heating. Moreover, you may adhere | attach by interposing a fusion agent like hot-melt powder.

【００２８】筐体の用途に応じて、通気膜５に撥水処
理、撥油処理などの撥液処理を施してもよい。撥液処理
は、表面張力の小さな物質を通気膜５に塗布し、乾燥
後、キュアすることにより行うことができ、撥液剤とし
ては、通気膜よりも低い表面張力の被膜を形成できれば
特に限定されないが、パーフルオロアルキル基を有する
高分子が好適である。このような高分子としては、例え
ば、フロラード（住友スリーエム製）、スコッチガード
（住友スリーエム製）、テックスガード（ダイキン工業
製）、ユニダイン（ダイキン工業製）、アサヒガード
（旭硝子製）など（すべて商品名）を利用してもよい。
撥液剤の塗布は、含浸、スプレーなどにより行えばよ
い。The gas permeable membrane 5 may be subjected to a liquid repellent treatment such as a water repellent treatment or an oil repellent treatment depending on the use of the housing. The liquid-repellent treatment can be performed by applying a substance having a small surface tension to the gas permeable membrane 5, drying and then curing the liquid repellent agent. The liquid repellent agent is not particularly limited as long as it can form a film having a surface tension lower than that of the gas permeable film. However, a polymer having a perfluoroalkyl group is preferable. Such polymers include, for example, Florard (manufactured by Sumitomo 3M), Scotch Guard (manufactured by Sumitomo 3M), Tex Guard (manufactured by Daikin Industries), Unidyne (manufactured by Daikin Industries), Asahi Guard (manufactured by Asahi Glass), etc. Name) may be used.
The liquid repellent agent may be applied by impregnation, spraying or the like.

【００２９】通気膜５を支持体２に固着する方法は、剥
がれや浮きなどが生じにくい方法として、加熱溶着、超
音波溶着、接着剤による接着などの方法が適している。
通気膜５に補強材６を積層する場合は、特に限定されな
いが、補強材６を支持体２と固着すればよい。なお、高
い撥液性が要求される場合には、撥液性が高い面を筐体
の外側に向けて固着するのが好ましい。As a method for fixing the gas permeable membrane 5 to the support 2, a method such as heat welding, ultrasonic welding, or adhesion with an adhesive is suitable as a method for preventing peeling or floating.
When the reinforcing material 6 is laminated on the gas permeable membrane 5, the reinforcing material 6 may be fixed to the support 2 although it is not particularly limited. When high liquid repellency is required, it is preferable that the surface having high liquid repellency be fixed to the outside of the housing.

【００３０】通気膜５を支持体２へ固着する他の方法と
して、支持体２を射出成形するに際して、支持体２を成
形する金型内に通気膜５を配置し、通気膜５と支持体５
とを一体化してもよい。As another method of fixing the gas permeable membrane 5 to the support body 2, when the support body 2 is injection molded, the gas permeable membrane 5 is placed in a mold for molding the support body 2 and the gas permeable membrane 5 and the support body 5
And may be integrated.

【００３１】通気部材１を筐体に固着する方法は、加熱
溶着、超音波溶着、振動溶着、接着剤による接着などが
適している。例えば、図１（ｃ）に示したように、筐体
７の開口部８を外側から塞ぐように通気部材１を筐体７
に配置し、通気部材１と筐体７とを上記した方法により
固着する。通気部材１は、通気膜５を支持体２によって
支持した構造であるため、直接通気膜５を取り扱う場合
に比べてハンドリングし易く、通気部材１を筐体７に固
着するプロセスの自動化が容易になる。図１（ｃ）に示
した例では、筐体７の外面に通気部材１を固着している
が、筐体７の内面に通気部材１を固着することもでき
る。As a method for fixing the ventilation member 1 to the housing, heat welding, ultrasonic welding, vibration welding, bonding with an adhesive, etc. are suitable. For example, as shown in FIG. 1C, the ventilation member 1 is provided so as to close the opening 8 of the housing 7 from the outside.
And the ventilation member 1 and the housing 7 are fixed to each other by the method described above. Since the ventilation member 1 has a structure in which the ventilation membrane 5 is supported by the support body 2, it is easier to handle than when the ventilation membrane 5 is directly handled, and the automation of the process of fixing the ventilation member 1 to the housing 7 is facilitated. Become. In the example shown in FIG. 1C, the ventilation member 1 is fixed to the outer surface of the housing 7, but the ventilation member 1 may be fixed to the inner surface of the housing 7.

【００３２】通気部材１を筐体に固着する他の方法とし
て、通気部材１を用意し、筐体を成形する金型の一部に
通気部材１を配置した後、筐体を射出成形することによ
って、通気部材１と筐体７とを一体化することもでき
る。As another method of fixing the ventilation member 1 to the housing, the ventilation member 1 is prepared, the ventilation member 1 is placed in a part of a mold for molding the housing, and then the housing is injection-molded. Thus, the ventilation member 1 and the housing 7 can be integrated.

【００３３】(実施の形態２)図４を用いて本発明におけ
る通気部材の他の例を説明する。図４に示した通気部材
２１は、支持体２２と、通気膜２５とを有しており、全
体の断面が略Ｔ字形である。支持体２２は、筐体の開口
部（図示せず）に挿入可能な柱状部２２ａと、柱状部２
２ａの周囲に連設された鍔部２２ｂとを含んでいる。柱
状部２２ａには貫通孔２３が形成されており、この貫通
孔２３を被覆するようにして通気膜２５が固着されてい
る。鍔部２２ｂの一方の面には柱状部２２ａを囲むよう
に固着面２４が形成されている。本例によれば、柱状部
２２ａを筐体の開口部（図示せず）へ挿入することで、
通気部材２１を筐体に位置決めすることができ、筐体へ
の固着をより簡便に行うことができる。(Second Embodiment) Another example of the ventilation member according to the present invention will be described with reference to FIG. The ventilation member 21 shown in FIG. 4 has a support 22 and a ventilation film 25, and the entire cross section is substantially T-shaped. The support 22 includes a columnar portion 22a that can be inserted into an opening (not shown) of the housing and a columnar portion 2
It includes a collar portion 22b continuously provided around the periphery of 2a. A through hole 23 is formed in the columnar portion 22a, and a ventilation film 25 is fixed so as to cover the through hole 23. A fixing surface 24 is formed on one surface of the flange portion 22b so as to surround the columnar portion 22a. According to this example, by inserting the columnar portion 22a into the opening (not shown) of the housing,
The ventilation member 21 can be positioned in the housing, and can be more easily fixed to the housing.

【００３４】(実施の形態３)図５〜図９を用いて本発明
における通気部材の他の例について説明する。図５
（ａ）〜（ｄ）に示す通気部材３１は、支持体３２と通
気膜３５とを含んでおり、全体の断面が略Ｔ字形であ
る。支持体３２は、柱状部３２ａと、柱状部３２ａに連
設された鍔部３２ｂとからなる断面が略Ｔ字形の部分
に、保護部３２ｃが接合されている。柱状部３２ａのほ
ぼ中央には貫通孔３３が形成されており、この貫通孔３
３を被覆するように通気膜３５が柱状部３２ａに固着さ
れている。(Third Embodiment) Another example of the ventilation member according to the present invention will be described with reference to FIGS. Figure 5
The ventilation member 31 shown in (a) to (d) includes a support 32 and a ventilation film 35, and the entire cross section is substantially T-shaped. In the support body 32, a protective portion 32c is joined to a portion having a columnar portion 32a and a flange portion 32b that is connected to the columnar portion 32a and has a substantially T-shaped cross section. A through hole 33 is formed substantially at the center of the columnar portion 32a.
The gas permeable membrane 35 is fixed to the columnar portion 32a so as to cover the columnar portion 3.

【００３５】図５（ｂ）および（ｃ）に示したように、
貫通孔３３は、通気膜３５が当接される面で複数に分れ
ている。このように、通気膜により被覆される面におい
て複数の貫通孔が形成されていると、通気膜３５の中央
も支持体３２によって支持され、外力による通気膜の破
損を抑制できる。尚、貫通孔はその全体が複数に分割さ
れていてもよい。As shown in FIGS. 5B and 5C,
The through hole 33 is divided into a plurality of areas on the surface on which the breathable film 35 abuts. In this way, when a plurality of through holes are formed on the surface covered with the gas permeable film, the center of the gas permeable film 35 is also supported by the support 32, and damage to the gas permeable film due to external force can be suppressed. The entire through hole may be divided into a plurality of parts.

【００３６】また、図５（ｄ）に示したように、通気膜
３５を当接する柱状部３２ａの表面は曲面となってい
る。このように、周縁部が中央部よりも低い曲面を支持
面とすると、水はけ性が良くなるため、水による影響を
受け易い環境で使用される筐体の通気部材として好適で
ある。Further, as shown in FIG. 5 (d), the surface of the columnar portion 32a which abuts the gas permeable membrane 35 is a curved surface. As described above, when the curved surface having the peripheral edge portion lower than the central portion is used as the support surface, the drainage property is improved, and thus it is suitable as a ventilation member for a housing used in an environment susceptible to the influence of water.

【００３７】また、図５に示したように、支持体３２
が、通気膜３５の上方の少なくとも一部を覆う保護部３
２ｃを備えていると、外力によって通気膜３５が損傷し
たり、砂、泥などが通気膜の表面に蓄積することで通気
が阻害されるなどのおそれを低減できる。Further, as shown in FIG.
However, the protection part 3 that covers at least a part of the upper side of the ventilation film 35
By providing 2c, it is possible to reduce the risk that the ventilation film 35 is damaged by an external force, or that ventilation is hindered by the accumulation of sand, mud or the like on the surface of the ventilation film.

【００３８】保護部３２ｃの形状は、通気部材の通気性
を損なわない形状であれば特に限定されないが、図５に
示した例のように、気体の透過方向に沿って観察したと
きに見えない位置、例えば、保護部３２ｃの側面に複数
の開口部３２ｄを形成することが好ましい。但し、通気
膜３５を保護する効果が損なわれない程度であれば、図
６に示すように、保護部３２ｃの上面３２ｅにも開口部
３２ｄを形成してもよい。The shape of the protective portion 32c is not particularly limited as long as it does not impair the air permeability of the ventilation member, but it cannot be seen when observed along the gas permeation direction as in the example shown in FIG. It is preferable to form a plurality of openings 32d at the position, for example, the side surface of the protection portion 32c. However, as long as the effect of protecting the gas permeable membrane 35 is not impaired, the opening 32d may be formed in the upper surface 32e of the protective portion 32c as shown in FIG.

【００３９】図５に示した例では、保護部３２ｃは、柱
状部３２ａに接合されることによって支持体３２の他の
部分と一体化しているが、これに限定されるものではな
く、例えば、鍔部３２ｂに接合することもできる。接合
は、加熱溶着、超音波溶着、振動溶着、接着剤による接
着などの方法により行うことができる。保護部３２ｃを
支持体３２の他の部分に一体化させる方法として、嵌
合、螺合などの手法を用いることもできる。また、図７
に示すように、保護部３２ｃと支持体３２の他の部分と
を一体成形すれば、部品点数が少なくなるため、コスト
を低減することができる。In the example shown in FIG. 5, the protective portion 32c is joined to the other portion of the support 32 by being joined to the columnar portion 32a, but the present invention is not limited to this, and for example, It can also be joined to the collar portion 32b. The joining can be performed by a method such as heat welding, ultrasonic welding, vibration welding, or adhesion with an adhesive. As a method of integrating the protection portion 32c with the other portion of the support 32, a method such as fitting or screwing can be used. Also, FIG.
As shown in FIG. 7, if the protection part 32c and the other part of the support body 32 are integrally molded, the number of parts can be reduced, so that the cost can be reduced.

【００４０】図８（ａ）および（ｂ）に、図５に示した
通気部材３１が筐体の開口部に固着された状態に示す。
図８（ａ）に示すように、筐体７に形成された開口部８
を被覆するように通気部材３１を筐体７に固着する場合
は、鍔部３２ｂの一方の面に形成された固着面３４ａと
筐体７の被固着面９とを接合することで、通気部材３１
を筐体に固着することができる。図８（ｂ）に示すよう
に、筐体７が段差構造を有する場合は、柱状部３２ａの
一部または全部が開口部８に収まるように支持体３２を
挿入し、筐体７の段差構造と支持体３２とを嵌め合わ
せ、鍔部３２ｂの他方の面に形成された固着面３４ｂと
筐体７の段差構造に形成された被固着面９とを接合する
ことで、通気部材３１を筐体に固着することができる。FIGS. 8A and 8B show a state in which the ventilation member 31 shown in FIG. 5 is fixed to the opening of the housing.
As shown in FIG. 8A, the opening 8 formed in the housing 7
When the ventilation member 31 is fixed to the housing 7 so as to cover the ventilation member 31, the fixing surface 34a formed on one surface of the collar portion 32b and the fixed surface 9 of the housing 7 are joined to each other. 31
Can be fixed to the housing. As shown in FIG. 8B, when the housing 7 has a step structure, the support 32 is inserted so that part or all of the columnar portion 32 a fits into the opening 8 to form the step structure of the housing 7. The support member 32 and the support member 32 are fitted to each other, and the fixing surface 34b formed on the other surface of the collar portion 32b and the fixed surface 9 formed in the step structure of the housing 7 are joined to each other, so that the ventilation member 31 is mounted on the housing. Can stick to the body.

【００４１】(実施の形態４)図９に本発明における通気
部材の他の例を示す。図９（ａ）および（ｂ）に示す通
気部材４１は、支持部４２と通気膜４５とを含んでお
り、全体の断面が略Ｔ字形である。支持体４２は、柱状
部４２ａと、柱状部４２ａの周囲に連設された鍔部４２
ｂとを含んでいる。柱状部４２ａの中央には貫通孔４３
が形成されており、貫通孔４３を塞ぐように支持部４２
の内部に通気膜４５が固着されている。また、支持体４
２は、複数の開口部４２ｄが形成された保護部４２ｃを
さらに含んでおり、保護部４２ｃと鍔部４２ｂとが面一
となるように、保護部４２ｃが支持部４２の他の部分と
一体化されている。すなわち、図５の通気部材と同様、
通気部材４１は、気体の透過方向に沿って見たときに、
通気膜４５の前方および後方に支持体４２の少なくとも
一部が配置された構造を有し、通気膜４５が支持体４２
の内部に配置されている。(Fourth Embodiment) FIG. 9 shows another example of the ventilation member according to the present invention. The ventilation member 41 shown in FIGS. 9A and 9B includes a support portion 42 and a ventilation film 45, and has a substantially T-shaped cross section. The support body 42 includes a columnar portion 42a and a collar portion 42 continuously provided around the columnar portion 42a.
b and are included. A through hole 43 is formed in the center of the columnar portion 42a.
Is formed, and the support portion 42 is formed so as to close the through hole 43.
The breathable film 45 is fixed inside. Also, the support 4
2 further includes a protection part 42c in which a plurality of openings 42d are formed, and the protection part 42c is integrated with the other part of the support part 42 so that the protection part 42c and the collar part 42b are flush with each other. Has been converted. That is, like the ventilation member of FIG.
The ventilation member 41, when viewed along the gas permeation direction,
At least a part of the support body 42 is arranged in front of and behind the gas permeable membrane 45, and the gas permeable membrane 45 serves as the support body 42.
Is located inside.

【００４２】図９（ｃ）に、通気部材４１が筐体７の開
口部に固着された状態に示す。図９（ｃ）に示したよう
に、筐体７の開口部８に形成された段差構造に支持体４
２の一部または全部を嵌め込み、鍔部４２ｂの一方の面
に形成された固着面４４と筐体７の段差構造に形成され
た被固着面９とを接合することで、通気部材４１を筐体
７に固着することができる。加熱溶着または超音波溶着
により通気部材４１が筐体７に固着される場合は、図９
（ｂ）に示したように、固着面４４に溶着用のリブ４４
ａを形成することで、高い気密性を得ることができる。FIG. 9C shows the ventilation member 41 fixed to the opening of the housing 7. As shown in FIG. 9C, the support 4 is formed in the step structure formed in the opening 8 of the housing 7.
The ventilation member 41 is fitted to the casing by fitting a part or all of No. 2 and joining the fixing surface 44 formed on one surface of the collar portion 42b and the fixed surface 9 formed in the step structure of the housing 7. It can be fixed to the body 7. When the ventilation member 41 is fixed to the housing 7 by heat welding or ultrasonic welding,
As shown in (b), the rib 44 for welding is attached to the fixing surface 44.
High airtightness can be obtained by forming a.

【００４３】また、図９（ｃ）に示すように、通気部材
４１の最大厚さＸを、筐体７の開口部８における筐体の
厚さＹ以下とすることで、筐体７の開口部８内に収まる
ように通気部材４１を筐体７に固着することができる。
本例は、例えば、エンジンルームに設置されるＥＣＵな
どのように、筐体内部および／または外部において部品
の集積度が高く、筐体内面および／または外面において
フラット性が要求される通気筐体に好適である。Further, as shown in FIG. 9C, the maximum thickness X of the ventilation member 41 is set to be equal to or less than the thickness Y of the casing at the opening 8 of the casing 7, so that the opening of the casing 7 is reduced. The ventilation member 41 can be fixed to the housing 7 so that the ventilation member 41 fits in the portion 8.
This example is a ventilated housing, such as an ECU installed in an engine room, in which the degree of integration of components is high inside and / or outside of the housing and flatness is required on the inner and / or outer surfaces of the housing. Suitable for

【００４４】(実施の形態５)図１０に本発明における通
気部材の他の例を示す。図１０（ａ）および（ｂ）に示
す通気部材５１は、支持体５２と通気膜５５とを含んで
おり、全体の断面形状が略Ｔ字形である。支持体５２
は、柱状部５２ａと、柱状部５２ａの一方の端部の周囲
に連設された鍔部５２ｂと、柱状部５２ａの他方の端部
に形成された保護部５２ｃを有している。柱状部５２ａ
の中央には貫通孔５３が形成されており、貫通孔５３の
一部が保護部５２ｃの開口部５２ｄを形成している。ま
た、貫通孔５３を被覆するように柱状部５２ａの鍔部５
２ｂが形成された側に通気膜５５が固着されている。こ
の通気部材５１によれば、外力による通気膜５５の損傷
などが抑制され、かつ、部品点数の少ない安価な通気部
材を提供することができる。(Fifth Embodiment) FIG. 10 shows another example of the ventilation member according to the present invention. The ventilation member 51 shown in FIGS. 10A and 10B includes a support body 52 and a ventilation film 55, and has a substantially T-shaped cross section. Support 52
Has a columnar portion 52a, a collar portion 52b continuously provided around one end of the columnar portion 52a, and a protection portion 52c formed at the other end of the columnar portion 52a. Columnar portion 52a
A through hole 53 is formed in the center of the, and a part of the through hole 53 forms an opening 52d of the protective portion 52c. In addition, the collar portion 5 of the columnar portion 52a covers the through hole 53.
The gas permeable membrane 55 is fixed to the side where 2b is formed. According to this ventilation member 51, it is possible to provide an inexpensive ventilation member that suppresses damage to the ventilation film 55 due to external force and has a small number of parts.

【００４５】図１０（ｃ）に通気部材５１が筐体７の開
口部に固着された状態に示す。図１０（ｃ）に示したよ
うに、筐体７の開口部８に形成された段差構造に支持体
５２の一部または全部を嵌め込み、鍔部５２ｂの一方の
面に形成された固着面５４と筐体７の段差構造に形成さ
れた被固着面９とを接合することで、通気部材５１を筐
体７に固着することができる。加熱溶着または超音波溶
着により通気部材５１が筐体７に固着される場合は、図
１０（ｂ）に示したように、固着面５４に溶着用のリブ
５４ａを形成することで、高い気密性を得ることができ
る。FIG. 10C shows the ventilation member 51 fixed to the opening of the housing 7. As shown in FIG. 10C, a part or all of the support body 52 is fitted into the step structure formed in the opening 8 of the housing 7, and the fixing surface 54 formed on one surface of the collar portion 52b. The ventilation member 51 can be fixed to the case 7 by joining the fixed surface 9 formed in the step structure of the case 7 to the case 7. When the ventilation member 51 is fixed to the housing 7 by heat welding or ultrasonic welding, the rib 54a for welding is formed on the fixing surface 54 as shown in FIG. Can be obtained.

【００４６】また、通気部材５１の最大厚さＺを筐体７
の開口部８における筐体の厚さＹ以下とすることで、筐
体７の開口部８内に収まるように通気部材５１を筐体７
に固着することができ、実施の形態４と同様に、筐体外
面および／または内面においてフラット性が要求される
場合に好適である。Further, the maximum thickness Z of the ventilation member 51 is set to the housing 7
By setting the thickness of the housing 8 in the opening 8 of the housing 7 to be less than or equal to
It is suitable for the case where flatness is required on the outer surface and / or the inner surface of the housing, as in the fourth embodiment.

【００４７】本例においては、図１０（ｂ）に示したよ
うに、開口部５２ｄが、複数形成されているが、通気が
損なわれなければこれに限定されるものではなく、１つ
であってもよい。ただし、支持体５２の強度を維持し、
物体の浸入を効果的に防止するなどの観点から小さな孔
に分割して形成することが好ましい。In this example, as shown in FIG. 10 (b), a plurality of openings 52d are formed, but the number is not limited to this as long as the ventilation is not impaired. May be. However, maintaining the strength of the support 52,
From the viewpoint of effectively preventing entry of an object, it is preferable to divide and form the small holes.

【００４８】次に、図１１〜図１５に本発明の通気部材
を固着した通気筐体の例を示す。図１１に示したコネク
タには、実施の形態１の通気部材１が、図１２に示した
自動車用ランプには、実施の形態２の通気部材２１に保
護部２２ｃを固着した通気部材が、図１３に示した電動
ハブラシには、実施の形態４の通気部材４１が、図１５
に示したＥＣＵには、実施の形態５の通気部材５１が固
着されている。しかしながら、本発明の通気部材が固着
される筐体はこれらに限定されるものではない。また、
筐体に固着される本発明の通気部材の個数についても特
に限定されるものではなく、筐体の他の面や同じ面に複
数個取り付けてもよい。Next, FIGS. 11 to 15 show an example of a ventilation casing to which the ventilation member of the present invention is fixed. The connector shown in FIG. 11 has the ventilation member 1 according to the first embodiment, and the automotive lamp shown in FIG. 12 has the ventilation member 21 according to the second embodiment with the protection member 22c fixed thereto. In the electric toothbrush shown in FIG. 13, the ventilation member 41 of the fourth embodiment is similar to that shown in FIG.
The ventilation member 51 of the fifth embodiment is fixed to the ECU shown in FIG. However, the case to which the ventilation member of the present invention is fixed is not limited to these. Also,
The number of ventilation members of the present invention fixed to the housing is not particularly limited, and a plurality of ventilation members may be attached to another surface or the same surface of the housing.

【００４９】[0049]

【実施例】以下、本発明を実施例によりさらに詳細に説
明するが、本発明は以下の実施例に限定されるものでは
ない。The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to the following examples.

【００５０】(実施例１)実施例として、図３に示す通気
部材１１を下記のとおり作製した。まず、ＰＢＴ（テイ
ジン社製ＣＧ７６４０：融点２２５℃）を用いて、図３
に示す構造の支持体２を射出成形により得た。得られた
支持体の厚さは２ｍｍ、外径は１８ｍｍ、貫通孔の内径
は６ｍｍであった。Example 1 As an example, the ventilation member 11 shown in FIG. 3 was produced as follows. First, using PBT (CG7640 manufactured by Teijin Ltd., melting point 225 ° C.), FIG.
The support 2 having the structure shown in was obtained by injection molding. The support thus obtained had a thickness of 2 mm, an outer diameter of 18 mm, and an inner diameter of the through hole of 6 mm.

【００５１】通気膜５として、厚さ０．０８５ｍｍ、外
径２０ｍｍのＰＴＦＥ多孔体（日東電工社製ミクロテッ
クスＮＴＦ１１３１：融点３２７℃）を準備し、補強材
６として、厚さ０．２ｍｍのポリエステル系不織布（東
レ社製、アクスター：融点２３０℃）を準備した。通気
膜５と補強材６とを、温度２６０℃、圧力４．９×１０
5Ｐａで１０秒間圧着して加熱溶着し、積層体１２を得
た。つづいて、積層体１２を外径１０ｍｍで打抜き、上
記支持体２の貫通孔３を被覆するように、積層体１２の
補強材６を当接させ、温度２８０℃、圧力４．９×１０
5Ｐａで３０秒間圧着して熱融着し、通気部材１１を得
た。As the gas permeable membrane 5, a PTFE porous body (Microtex NTF1131: manufactured by Nitto Denko Corporation, melting point 327 ° C.) having a thickness of 0.085 mm and an outer diameter of 20 mm was prepared, and as the reinforcing material 6, a polyester having a thickness of 0.2 mm was prepared. A non-woven fabric (Toray Industries, Inc., Axter: melting point 230 ° C.) was prepared. The gas permeable membrane 5 and the reinforcing material 6 are placed at a temperature of 260 ° C. and a pressure of 4.9 × 10
The laminate 12 was obtained by pressure bonding at 5 Pa for 10 seconds and heat welding. Subsequently, the laminated body 12 is punched out with an outer diameter of 10 mm, and the reinforcing material 6 of the laminated body 12 is contacted so as to cover the through holes 3 of the support 2, and the temperature is 280 ° C. and the pressure is 4.9 × 10.
Ventilation member 11 was obtained by pressure bonding for 30 seconds at 5 Pa and heat fusion.

【００５２】次に、図１（ｃ）に示した筐体７を、ＰＢ
Ｔ（テイジン社製ＣＧ７６４０：融点２２５℃）を用い
て射出成形により作製した。得られた筐体の外壁の厚さ
は３ｍｍ、開口部８の内径は１２ｍｍであった。Next, the housing 7 shown in FIG.
It was produced by injection molding using T (CG7640 manufactured by Teijin Ltd .: melting point 225 ° C.). The outer wall of the obtained housing had a thickness of 3 mm, and the opening 8 had an inner diameter of 12 mm.

【００５３】次に、筐体７の開口部８を覆うようにして
上記通気部材１１を配置し、超音波溶着機（超音波工業
株式会社製）を用いて、周波数２８ｋＨｚ、圧力３ＭＰ
ａの条件で通気部材１１の固着面４と筐体７の被固着面
９とを溶着した。Next, the ventilation member 11 is arranged so as to cover the opening 8 of the housing 7, and a frequency of 28 kHz and a pressure of 3 MP are applied by using an ultrasonic welding machine (manufactured by Ultrasonic Industrial Co., Ltd.).
The fixing surface 4 of the ventilation member 11 and the fixed surface 9 of the housing 7 were welded under the condition of a.

【００５４】このようにして得られた通気筐体につい
て、耐水圧試験，防塵性試験および加熱・冷却試験を下
記の方法に従って行った。その結果、水の浸入，塵挨の
侵入および通気筐体の破損はなかった。With respect to the aerated casing thus obtained, a water pressure resistance test, a dustproof test and a heating / cooling test were conducted according to the following methods. As a result, there was no infiltration of water, no intrusion of dust, and no damage to the ventilation housing.

【００５５】〔耐水圧試験〕通気筐体を水の入った加圧
容器中に入れ、水により５．０×１０4Ｐａの圧力を１
０分間かけたのち、常圧に戻し、加圧容器から取り出
す。そして、通気筐体内への水の浸入を目視にて確認す
る。[Water pressure resistance test] The aeration casing is put in a pressure vessel containing water, and a pressure of 5.0 × 10 4 Pa is set to 1 with water.
After applying for 0 minutes, the pressure is returned to normal pressure, and the container is taken out of the pressure vessel. Then, the infiltration of water into the ventilation housing is visually confirmed.

【００５６】〔防塵性試験〕容積が１０Ｌの容器中に試
験用ダスト８号（関東ローム社製、ＪＩＳＺ８９０１）
２００ｇと通気筐体とを入れ、上記容器を１０ｒｐｍの
回転速度で１０分間回転させたのち、上記容器から通気
筐体を取り出して、通気筐体内へのダストの侵入を目視
にて確認する。[Dustproofness Test] Test dust No. 8 (manufactured by Kanto Rohm, JIS Z8901) in a container having a volume of 10 L.
After inserting 200 g and a ventilation housing and rotating the container at a rotation speed of 10 rpm for 10 minutes, the ventilation housing is taken out from the container, and the entry of dust into the ventilation housing is visually confirmed.

【００５７】〔加熱・冷却試験〕通気筐体を２５℃雰囲
気中に２４時間放置したのち、１０５℃の乾燥機中に３
０分間放置し、つづいて０℃の冷却機中に３０分間放置
するという１サイクルの操作を２４サイクル行ったの
ち、通気筐体の破損および亀裂を目視にて確認する。[Heating / Cooling Test] After leaving the ventilated housing in an atmosphere of 25 ° C. for 24 hours, it was placed in a dryer at 105 ° C. for 3 hours.
After performing 24 cycles of 1 cycle of leaving for 0 minutes and then leaving it in a cooler at 0 ° C. for 30 minutes, the breakage and crack of the ventilation housing are visually confirmed.

【００５８】（実施例２）実施例２として、図５に示す
通気部材３１を下記のとおり作製した。まず、通気部材
３１の支持体３２をＰＢＴ（テイジン社製ＣＧ７６４
０：融点２２５℃）を用いて射出成形により作製した。
支持体３２の鍔部３２ｂの厚さは２ｍｍ、柱状部３２ａ
の厚さは３ｍｍ、外径は１８ｍｍ、貫通孔３３の内径は
６ｍｍ、であった。つづいて実施例１と同じ積層体１２
を外径１０ｍｍで打抜き、貫通孔３３を被覆するように
して積層体１２の補強材６を柱状部３２ａに当接させ、
温度２８０℃、圧力４．９×１０5Ｐａで３０秒間圧着
して熱融着した。次に、保護部３２ｃを、ＰＢＴ（テイ
ジン社製ＣＧ７６４０：融点２２５℃）を用いて射出成
形により作製した。保護部３２ｃの厚さは３ｍｍ、外径
は１４ｍｍであった。次に、保護部３２ｃを接着剤にて
積層体１２を覆うようにして柱状部３２ａに固着し、通
気部材３１を作製した。Example 2 As Example 2, the ventilation member 31 shown in FIG. 5 was manufactured as follows. First, the support 32 of the ventilation member 31 is set to PBT (CG764 manufactured by Teijin Ltd.).
0: melting point 225 ° C.).
The thickness of the collar portion 32b of the support 32 is 2 mm, and the columnar portion 32a
Had a thickness of 3 mm, an outer diameter of 18 mm, and the through hole 33 had an inner diameter of 6 mm. Subsequently, the same laminated body 12 as in Example 1
Is punched out with an outer diameter of 10 mm, the reinforcing member 6 of the laminated body 12 is brought into contact with the columnar portion 32a so as to cover the through hole 33,
It was pressure-bonded at a temperature of 280 ° C. and a pressure of 4.9 × 10 5 Pa for 30 seconds for heat fusion. Next, the protective part 32c was produced by injection molding using PBT (CG7640 manufactured by Teijin Ltd .: melting point 225 ° C.). The protective portion 32c had a thickness of 3 mm and an outer diameter of 14 mm. Next, the protective portion 32c was fixed to the columnar portion 32a with an adhesive so as to cover the laminated body 12, and the ventilation member 31 was manufactured.

【００５９】次に、図１（ｃ）に示した筐体７の開口部
８を覆うようにして上記通気部材３１を配置し、超音波
溶着機（超音波工業株式会社製）を用いて、周波数２８
ｋＨｚ、圧力３ＭＰａの条件で、通気部材３１の鍔部３
２ｂの一方の面に形成された固着面３４ａと筐体７の被
固着面９とを溶着した。Next, the ventilation member 31 is arranged so as to cover the opening 8 of the housing 7 shown in FIG. 1C, and an ultrasonic welding machine (manufactured by Ultrasonic Industries Co., Ltd.) is used to Frequency 28
The collar portion 3 of the ventilation member 31 under the conditions of kHz and pressure of 3 MPa.
The fixed surface 34a formed on one surface of 2b and the fixed surface 9 of the housing 7 were welded.

【００６０】このようにして得られた通気筐体につい
て、実施例１と同様に、耐水圧試験、防塵性試験および
加熱・冷却試験を行った。その結果、水の浸入、塵挨の
侵入および通気筐体の破損はなかった。With respect to the ventilation housing thus obtained, a water pressure resistance test, a dustproof test and a heating / cooling test were conducted in the same manner as in Example 1. As a result, there was no infiltration of water, no intrusion of dust, and no damage to the ventilation housing.

【００６１】[0061]

【発明の効果】以上のように、本発明によれば、筐体へ
の固着が容易な通気部材およびこれを用いた通気筐体を
提供できる。As described above, according to the present invention, it is possible to provide a ventilation member that can be easily fixed to a housing and a ventilation housing using the ventilation member.

【図面の簡単な説明】[Brief description of drawings]

【図１】 （ａ）は本発明における通気部材の一例を示
す斜視図、（ｂ）は（ａ）のＡ−Ａ′断面図、（ｃ）は
本例の通気部材が固着された通気筐体の断面図である。1A is a perspective view showing an example of a ventilation member according to the present invention, FIG. 1B is a sectional view taken along the line AA ′ of FIG. 1A, and FIG. 1C is a ventilation casing to which the ventilation member of this example is fixed. It is sectional drawing of a body.

【図２】 本発明における通気部材と筐体との固着の状
態の例を説明する図である。FIG. 2 is a diagram illustrating an example of a fixed state of a ventilation member and a housing according to the present invention.

【図３】 本発明における通気部材の他の例を示す断面
図である。FIG. 3 is a cross-sectional view showing another example of the ventilation member according to the present invention.

【図４】 本発明における通気部材の他の例を示す断面
図である。FIG. 4 is a cross-sectional view showing another example of the ventilation member according to the present invention.

【図５】 （ａ）は本発明における通気部材の他の例を
示す斜視図、（ｂ）は分解図、（ｃ）は底面図、（ｄ）
は（ａ）のＢ−Ｂ′断面図である。5A is a perspective view showing another example of the ventilation member according to the present invention, FIG. 5B is an exploded view, FIG. 5C is a bottom view, and FIG.
FIG. 7B is a sectional view taken along line BB ′ of FIG.

【図６】 本発明の通気部材に使用される保護部の一例
を示す斜視図である。FIG. 6 is a perspective view showing an example of a protection part used in the ventilation member of the present invention.

【図７】 本発明における通気部材の他の例を示す断面
図である。FIG. 7 is a cross-sectional view showing another example of the ventilation member according to the present invention.

【図８】 （ａ）および（ｂ）は、図５に示した通気部
材を筐体に固着した状態を説明する図である。8A and 8B are diagrams illustrating a state in which the ventilation member shown in FIG. 5 is fixed to a housing.

【図９】 （ａ）は本発明における通気部材の他の例
を示す平面図、（ｂ）は（ａ）のＣ−Ｃ′断面図、
（ｃ）は（ｂ）を筐体に固着した状態を説明する図であ
る。9A is a plan view showing another example of the ventilation member according to the present invention, FIG. 9B is a sectional view taken along line CC ′ of FIG.
(C) is a figure explaining the state which fixed (b) to the housing.

【図１０】 （ａ）は本発明における通気部材の他の例
を示す平面図、（ｂ）は（ａ）のＤ−Ｄ′断面図、
（ｃ）は（ｂ）を筐体に固着した状態を説明する図であ
る。10A is a plan view showing another example of the ventilation member according to the present invention, FIG. 10B is a sectional view taken along line DD ′ of FIG.
(C) is a figure explaining the state which fixed (b) to the housing.

【図１１】 （ａ）は本発明における通気部材が固着さ
れたコネクタの斜視図、（ｂ）は（ａ）のＥ−Ｅ′断面
図である。11A is a perspective view of a connector to which a ventilation member according to the present invention is fixed, and FIG. 11B is a sectional view taken along line EE ′ of FIG.

【図１２】 （ａ）本発明における通気部材が固着され
た自動車用ランプの斜視図、（ｂ）は（ａ）のＦ−Ｆ′
断面図である。FIG. 12 (a) is a perspective view of an automobile lamp to which a ventilation member according to the present invention is fixed, and FIG. 12 (b) is FF ′ in (a).
FIG.

【図１３】 本発明における通気部材が固着された電動
ハブラシの部分断面図。FIG. 13 is a partial cross-sectional view of the electric toothbrush to which the ventilation member according to the present invention is fixed.

【図１４】 （ａ）は本発明における通気部材が固着さ
れたＥＣＵの斜視図であり、（ｂ）はＥＣＵカバーの上
蓋の裏面図である。FIG. 14A is a perspective view of the ECU to which the ventilation member according to the present invention is fixed, and FIG. 14B is a back view of the upper lid of the ECU cover.

【図１５】 （ａ）は従来の通気部材が固着された通気
筐体の例を示す図、（ｂ）は（ａ）のＧ−Ｇ′断面図で
ある。15A is a diagram showing an example of a conventional ventilation casing to which a conventional ventilation member is fixed, and FIG. 15B is a sectional view taken along line GG ′ of FIG. 15A.

【符号の説明】[Explanation of symbols]

１，１１，２１，３１，４１，５１ 通気部材 ２，２２，３２，４２，５２ 支持体 ３，２３，３３，４３，５３ 貫通孔 ４，２４，３４ａ，３４ｂ，４４，５４ 固着面 ５，２５，３５，４５，５５ 通気膜 ６ 補強材 ７ 筐体 ８ 筐体の開
口部 ９ 被固着面 １２ 積層体 ２２ａ，３２ａ，４２ａ，５２ａ 柱状部 ２２ｂ，３２ｂ，４２ｂ，５２ｂ 鍔部 ２２ｃ，３２ｃ，４２ｃ，５２ｃ 保護部 ３２ｄ，４２ｄ，５２ｄ 開口部 ４ａ，４４ａ，５４ａ 溶着用リ
ブ1, 11, 21, 31, 41, 51 Vent member 2, 22, 32, 42, 52 Support body 3, 23, 33, 43, 53 Through hole 4, 24, 34a, 34b, 44, 54 Fixing surface 5, 25, 35, 45, 55 Breathing film 6 Reinforcing material 7 Housing 8 Housing opening 9 Fixed surface 12 Laminated bodies 22a, 32a, 42a, 52a Columnar parts 22b, 32b, 42b, 52b Collars 22c, 32c, 42c, 52c Protective parts 32d, 42d, 52d Opening parts 4a, 44a, 54a Ribs for welding

───────────────────────────────────────────────────── フロントページの続き (72)発明者 柳 俊輝 大阪府茨木市下穂積１丁目１番２号 日東 電工株式会社内 Ｆターム(参考） 4E360 AB12 AB31 BA08 BC05 BD03 BD05 EA18 EB04 ED03 ED27 GA22 GA23 GA29 GA53 GB99 GC08    ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Toshiki Yanagi             1-2 1-2 Shimohozumi, Ibaraki City, Osaka Prefecture Nitto             Electric Works Co., Ltd. F-term (reference) 4E360 AB12 AB31 BA08 BC05 BD03                       BD05 EA18 EB04 ED03 ED27                       GA22 GA23 GA29 GA53 GB99                       GC08

Claims (21)

【特許請求の範囲】[Claims] 【請求項１】 筐体の開口部に固着された状態で、前記
開口部を通過する気体が透過する通気膜を含む通気部材
であって、前記通気膜を支持する支持体をさらに含むこ
とを特徴とする通気部材。1. A ventilation member including a ventilation film that allows gas passing through the opening to pass therethrough while being fixed to the opening of the housing, further comprising a support member that supports the ventilation film. A characteristic ventilation member. 【請求項２】 支持体に貫通孔が形成されており、前記
貫通孔が通気膜により被覆されていることを特徴とする
請求項１に記載の通気部材。2. The ventilation member according to claim 1, wherein a through hole is formed in the support, and the through hole is covered with a ventilation film. 【請求項３】 通気膜により被覆される面において複数
の貫通孔が形成されていることを特徴とする請求項２に
記載の通気部材。3. The ventilation member according to claim 2, wherein a plurality of through holes are formed on the surface covered with the ventilation film. 【請求項４】 支持体が、熱可塑性樹脂を含むことを特
徴とする請求項１に記載の通気部材。4. The ventilation member according to claim 1, wherein the support contains a thermoplastic resin. 【請求項５】 通気膜が、支持体の内部に配置されたこ
とを特徴とする請求項１に記載の通気部材。5. The ventilation member according to claim 1, wherein the ventilation film is arranged inside the support. 【請求項６】 支持体が、筐体へ固着するための固着面
を有しており、前記固着面は同一平面内に存在し溶着用
のリブを備えたことを特徴とする請求項１に記載の通気
部材。6. The support according to claim 1, wherein the support has a fixing surface for fixing to the housing, and the fixing surface is provided in the same plane and has a rib for welding. The ventilation member described. 【請求項７】 少なくとも固着面が、熱可塑性樹脂によ
り構成されたことを特徴とする請求項６に記載の通気部
材。7. The ventilation member according to claim 6, wherein at least the fixing surface is made of a thermoplastic resin. 【請求項８】 支持体が、通気膜の上方の少なくとも一
部を覆う保護部を有することを特徴とする請求項１に記
載の通気部材。8. The ventilation member according to claim 1, wherein the support has a protective portion that covers at least a part of the upper side of the gas permeable membrane. 【請求項９】 保護部が、複数の開口部を有することを
特徴とする請求項８に記載の通気部材。9. The ventilation member according to claim 8, wherein the protective portion has a plurality of openings. 【請求項１０】 開口部が、気体の透過方向に沿って観
察したときに、見えない位置に形成されていることを特
徴とする請求項９に記載の通気部材。10. The ventilation member according to claim 9, wherein the opening is formed at a position that cannot be seen when observed along the gas permeation direction. 【請求項１１】 支持体と保護部とが一体成形されたこ
とを特徴とする請求項８に記載の通気部材。11. The ventilation member according to claim 8, wherein the support and the protection part are integrally formed. 【請求項１２】 支持体が、筐体の開口部に挿入可能な
柱状部と、前記柱状部の周囲に連設された鍔部を含むこ
とを特徴とする請求項１に記載の通気部材。12. The ventilation member according to claim 1, wherein the support includes a columnar portion that can be inserted into the opening of the housing, and a collar portion that is continuously provided around the columnar portion. 【請求項１３】 支持体が、平板であることを特徴とす
る請求項１に記載の通気部材。13. The ventilation member according to claim 1, wherein the support is a flat plate. 【請求項１４】 通気膜が、フッ素樹脂多孔体およびポ
リオレフィン多孔体から選ばれる少なくとも１種を含む
ことを特徴とする請求項１に記載の通気部材。14. The breathable member according to claim 1, wherein the breathable film contains at least one selected from a fluororesin porous body and a polyolefin porous body. 【請求項１５】 フッ素樹脂が、ポリテトラフルオロエ
チレンであることを特徴とする請求項１４に記載の通気
部材。15. The ventilation member according to claim 14, wherein the fluororesin is polytetrafluoroethylene. 【請求項１６】 通気膜に、補強材が積層されているこ
とを特徴とする請求項１に記載の通気部材。16. The ventilation member according to claim 1, wherein a reinforcing material is laminated on the ventilation film. 【請求項１７】 通気膜が、撥液処理されていることを
特徴とする請求項１に記載の通気部材。17. The ventilation member according to claim 1, wherein the ventilation film is subjected to a liquid repellent treatment. 【請求項１８】 請求項１〜１７のいずれかに記載の通
気部材が、筐体の開口部に固着されていることを特徴と
する通気筐体。18. A ventilation casing, wherein the ventilation member according to any one of claims 1 to 17 is fixed to an opening of the casing. 【請求項１９】 筐体の少なくとも通気部材に当接する
面が熱可塑性樹脂から構成されていることを特徴とする
請求項１８に記載の通気筐体。19. The ventilation housing according to claim 18, wherein at least a surface of the housing that comes into contact with the ventilation member is made of a thermoplastic resin. 【請求項２０】 筐体の段差構造に通気部材の少なくと
も一部が嵌め込まれて固着されていることを特徴とする
請求項１８に記載の通気筐体。20. The ventilation casing according to claim 18, wherein at least a part of the ventilation member is fitted and fixed to the step structure of the casing. 【請求項２１】 通気部材が、筐体の開口部に収まるよ
うに固着されていることを特徴とする請求項２０に記載
の通気筐体。21. The ventilation housing according to claim 20, wherein the ventilation member is fixed so as to fit in the opening of the housing.
JP2002124416A 2002-04-25 2002-04-25 Ventilation member and ventilation housing using the same Pending JP2003318557A (en)

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