JPH0714677U - Vent holes in the housing of electronic devices - Google Patents

Vent holes in the housing of electronic devices

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Publication number
JPH0714677U
JPH0714677U JP4595193U JP4595193U JPH0714677U JP H0714677 U JPH0714677 U JP H0714677U JP 4595193 U JP4595193 U JP 4595193U JP 4595193 U JP4595193 U JP 4595193U JP H0714677 U JPH0714677 U JP H0714677U
Authority
JP
Japan
Prior art keywords
opening end
casing
housing
electronic device
ventilation
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
JP4595193U
Other languages
Japanese (ja)
Inventor
正基 森田
祐治 中原
仁 喜多
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.)
Icom Inc
Original Assignee
Icom Inc
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 Icom Inc filed Critical Icom Inc
Priority to JP4595193U priority Critical patent/JPH0714677U/en
Publication of JPH0714677U publication Critical patent/JPH0714677U/en
Pending legal-status Critical Current

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  • Casings For Electric Apparatus (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

(57)【要約】 【目的】 電子機器の筐体の内外気圧差を解消するため
の通気孔に関し、長期間にわたって高い防水機能を維持
する通気孔を容易に設けることのできる電子機器の筐体
の通気孔を提供することを目的とする。 【構成】 電子機器の筐体11の内部を外気に連通させ
るようにした電子機器の筐体の通気孔において、上記筐
体11に設けられた外部開口端1aと、筐体11内部で
あって上記外部開口端1aよりも上方に位置するように
設けられた内部開口端1bとを通気路1で接続するとと
もに、上記内部開口端1b付近の通気路1内に通気性を
有する防水手段2を設けた構成とし、さらに上記防水手
段2の具体的な構成としては、ポーラスな構造を有する
不透水性素材か、あるいはフィン21で隔てられた複数
の小室22と該小室22間を相互に連通するようにフィ
ン21に穿設された小孔23とを備えるラビリンス構造
体20を採用する。
(57) [Abstract] [Purpose] Regarding a vent for eliminating the difference between the internal and external atmospheric pressures of the casing of an electronic device, the casing of the electronic device can easily provide a vent that maintains a high waterproof function for a long period of time. The purpose is to provide ventilation holes. In an air vent of a casing of an electronic device that allows the inside of the casing 11 of the electronic device to communicate with the outside air, the external opening end 1a provided in the casing 11 and the inside of the casing 11 are The inner opening end 1b provided so as to be located above the outer opening end 1a is connected by the air passage 1, and the waterproof means 2 having air permeability is provided in the air passage 1 near the inner opening end 1b. As a specific configuration of the waterproof means 2 provided, a water-impermeable material having a porous structure or a plurality of small chambers 22 separated by fins 21 and the small chambers 22 are communicated with each other. The labyrinth structure 20 including the small holes 23 formed in the fins 21 is adopted.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

本考案は電子機器の筐体の内外気圧差を解消するために設けられる通気孔に関 するものである。 The present invention relates to a vent provided to eliminate the difference between the internal pressure and the external pressure of the housing of an electronic device.

【0002】[0002]

【従来の技術】[Prior art]

屋外で使用される電子機器の筐体は、電子部品が配設された内部への雨水等の 侵入を確実に防止することができるようにする一方で、外気温の変化に伴って生 じる結露及び筐体内外の気圧差による該筐体の変形を防止するために筐体内部と 外気とを連通させる通気孔が設けられることがある。 The housing of an electronic device used outdoors can reliably prevent rainwater and the like from entering the inside where electronic components are installed, while it is generated as the outside temperature changes. A vent hole may be provided to connect the inside of the housing to the outside air in order to prevent the housing from being deformed due to dew condensation or a difference in pressure between the inside and outside of the housing.

【0003】 図5は上記通気孔を備えるレーダ装置の構成図であり、図5(a) はその一部破 断正面図、図5(b) は同じく一部破断側面図であり、図6はその要部拡大縦断側 面図である。FIG. 5 is a configuration diagram of a radar device having the above-mentioned ventilation hole, FIG. 5 (a) is a partially broken front view thereof, and FIG. 5 (b) is a partially broken side view thereof. Is an enlarged vertical sectional side view of the relevant part.

【0004】 図5に示すレーダ装置は、上部ユニット51aと下部ユニット51bとで構成 される筐体51と、該筐体51上面に突出させた駆動軸54と、該駆動軸54に 固着された空中線53とよりなり、例えば船舶のキャビン屋上に載置され、上記 筐体51に収容された図示しない駆動手段で駆動軸54を回転させて探査電波を 授受する空中線53を旋回するようにしている。The radar device shown in FIG. 5 has a housing 51 composed of an upper unit 51 a and a lower unit 51 b, a drive shaft 54 protruding from the upper surface of the housing 51, and a drive shaft 54 fixed to the drive shaft 54. The antenna 53 is composed of an antenna 53, and is mounted on, for example, the cabin roof of a ship, and the driving shaft 54 is rotated by a driving means (not shown) housed in the housing 51 so as to rotate the antenna 53 which transmits and receives the search radio wave. .

【0005】 上記上部ユニット51aの前面51cには該筐体51の内部を外気に連通させ る通気孔60が設けられるとともに、上記通気孔60の後方には上記上部ユニッ ト51aと一体に成形された庇部55を垂下させ、該庇部55の先端部55aが 下部ユニット51bの前面とがごく狭い間隙を保って支持されるようにしている 。The front surface 51c of the upper unit 51a is provided with a ventilation hole 60 for communicating the inside of the housing 51 with the outside air, and the ventilation hole 60 is formed integrally with the upper unit 51a behind the ventilation hole 60. The eaves portion 55 is hung so that the front end portion 55a of the eaves portion 55 is supported with a very narrow gap between the front end portion 55a and the front surface of the lower unit 51b.

【0006】 上記の構成によれば、筐体51の内部が、通気孔60及び先端部55a・下部 ユニット51b側面の間隙を通じて外気に連通しているので、例えば機器の軽量 化を図るためにアルミニウム等の金属よりも熱伝導度や剛性の低いAES(アク リロニトリル・エチレンプロピレンゴム・スチレン)樹脂で筐体51を構成した 場合においても、外気温の変化に伴って生じる筐体51内部の結露及び筐体内外 の気圧差による該筐体51の変形を防止することができ、しかも該筐体51の浴 びた雨水や海水は図示の矢印Wのように流下するので筐体51内部に水が侵入す ることを防止することができる。According to the above configuration, the inside of the casing 51 communicates with the outside air through the ventilation hole 60 and the gap between the tip portion 55a and the side surface of the lower unit 51b. Therefore, for example, in order to reduce the weight of the device, aluminum is used. Even when the housing 51 is made of AES (acrylonitrile / ethylene propylene rubber / styrene) resin, which has lower thermal conductivity and rigidity than other metals such as metal, condensation inside the housing 51 due to changes in the outside temperature and It is possible to prevent the casing 51 from being deformed due to the pressure difference between the inside and outside of the casing, and the rainwater and seawater bathed in the casing 51 flow down as indicated by the arrow W in the figure, so that water does not flow inside the casing 51. Intrusion can be prevented.

【0007】 さらに図7は上記通気性及び防水性を保証した通気孔の別の構成を示す要部拡 大縦断側面図であり、図7(a),(b) に示すように、両例は通気孔60の穿孔位置 上方に外側に膨出する膨出部70を有し、該膨出部70によって雨水や海水等は 図示の矢印Wのように通気孔60の開口方向とは異なる方向に流下するようにし 、上記図5,図6に示す構成と同様、筐体51内部の通気性及び防水性を確保す るようにしている。Further, FIG. 7 is an enlarged vertical side view of an essential part showing another configuration of the ventilation hole that ensures the above-mentioned breathability and waterproofness. As shown in FIGS. 7 (a) and 7 (b), both examples are shown. Has a bulging portion 70 that bulges outwardly above the position where the ventilation hole 60 is drilled, and rainwater, seawater, etc. are directed by the bulging portion 70 in a direction different from the opening direction of the ventilation hole 60 as indicated by arrow W in the figure. Similarly to the structure shown in FIGS. 5 and 6, the air permeability and the waterproof property inside the housing 51 are ensured.

【0008】 また、図8はさらに別の構成の通気孔を示す要部拡大縦断側面図であり、図8 に示すようにほぼ垂直な筐体51の側面に穿設された通気孔60内には、通気性 を有する一方、水滴を通過させない性質を有する素材よりなる防水手段80を充 填している。FIG. 8 is an enlarged vertical sectional side view of a main part showing a ventilation hole having another structure. As shown in FIG. 8, the ventilation hole 60 is formed in a side surface of the housing 51 which is substantially vertical. Is filled with the waterproofing means 80 made of a material that has breathability but does not allow water droplets to pass through.

【0009】 上記防水手段80を構成する素材としては、筐体51内部の気圧が急速に上下 することはありえないので、例えば半透水性樹脂膜のような通気性の高く、防水 性に優れる高価な素材を採用する必要はなく、綿栓、紙栓、スポンジ等のような 通気性のごく小さい素材によっても充分に上記機能を果たすことができる。As a material forming the waterproofing means 80, the air pressure inside the housing 51 cannot rise and fall rapidly. Therefore, for example, a semipermeable resin film has high air permeability and is excellent in waterproofness and expensive. It is not necessary to use a material, and a material having a very small air permeability such as a cotton plug, a paper plug, or a sponge can sufficiently perform the above function.

【0010】[0010]

【考案が解決しようとする課題】[Problems to be solved by the device]

しかしながら、上記図5乃至図7に示すように庇部55や膨出部70を形成し た筐体51は、形状が複雑になり金型の製造コストが嵩むという共通した難点が ある。 However, as shown in FIGS. 5 to 7, the housing 51 having the eaves 55 and the bulging portion 70 has a common drawback that the shape becomes complicated and the manufacturing cost of the mold increases.

【0011】 それに加えて、図7に示す構成では通気孔60の正面から雨水、海水まじりの 風が吹きつけると筐体51内部が濡れることになり、防水性が低いという欠点が ある。In addition, in the structure shown in FIG. 7, if rainwater or seawater-blown wind blows from the front of the vent hole 60, the inside of the housing 51 will get wet, and there is a drawback that the waterproofness is low.

【0012】 また図8に示す構成では防水手段80が雨水や海水を大量に被ることになり、 防水手段80が水分や塩分を吸収し、気温の上下により該塩分を含んだ水蒸気を 筐体51内部にむけて放散する恐れがある。しかも、直射日光にも曝されるので 、防水手段80の劣化が急速に進み、通気孔60から欠落する事態が充分考えら れるので、頻繁に点検を行わなければならないという欠点がある。Further, in the configuration shown in FIG. 8, the waterproofing means 80 is covered with a large amount of rainwater or seawater, the waterproofing means 80 absorbs water and salt, and the water vapor containing the salt is absorbed by the casing 51 depending on the temperature rise and fall. May be dissipated towards the interior. In addition, since the waterproofing means 80 is rapidly exposed to direct sunlight and deteriorates rapidly, the waterproofing means 80 may be missing from the ventilation hole 60. Therefore, frequent inspections are required.

【0013】 この考案は上記従来の事情に鑑みて提案されたものであって、長期間にわたっ て高い防水機能を維持する通気孔を容易に設けることのできる電子機器の筐体の 通気孔を提供することを目的とするものである。The present invention has been proposed in view of the above-mentioned conventional circumstances, and provides a ventilation hole of an electronic device casing in which a ventilation hole that maintains a high waterproof function for a long period of time can be easily provided. It is intended to be provided.

【0014】[0014]

【課題を解決するための手段】[Means for Solving the Problems]

上記の目的を達成するために、この考案では以下の手段を採用する。 すなわち、図1乃至図3に示すように、電子機器の筐体11の内部を外気に連 通させるようにした電子機器の筐体の通気孔において、上記筐体11に設けられ た外部開口端1aと、筐体11内部であって上記外部開口端1aよりも上方に位 置するように設けられた内部開口端1bとを通気路1で接続するとともに、上記 内部開口端1b付近の通気路1内に通気性を有する防水手段2を設けた構成とす る。 In order to achieve the above object, the present invention employs the following means. That is, as shown in FIG. 1 to FIG. 3, in the vent hole of the housing of the electronic device that allows the inside of the housing 11 of the electronic device to communicate with the outside air, the external opening end provided in the housing 11 is opened. 1a and an internal opening end 1b provided inside the housing 11 so as to be located above the external opening end 1a are connected by a ventilation path 1, and a ventilation path near the internal opening end 1b is provided. A waterproof means 2 having air permeability is provided in the inside 1.

【0015】 上記防水手段2の具体的な構成としては、ポーラスな構造を有する不透水性素 材か、あるいはフィン21で隔てられた複数の小室22と該小室22間を相互に 連通するようにフィン21に穿設された小孔23とを備えるラビリンス構造体2 0を採用することができる。As a specific configuration of the waterproofing means 2, a water-impermeable material having a porous structure or a plurality of small chambers 22 separated by fins 21 and the small chambers 22 are connected to each other. A labyrinth structure 20 having a small hole 23 formed in the fin 21 can be adopted.

【0016】[0016]

【作用】[Action]

上記の構成によれば、外部開口端1aから通気路1内に侵入した雨水や海水の ほとんどは外部開口端1a付近に止まり、該外部開口端1aよりも上方に位置す る防水手段2にまで到達する雨水や海水が極めて少なくなり、内部開口端1bに は全く到達しなくなる。 According to the above configuration, most of rainwater or seawater that has entered the ventilation passage 1 from the outer opening end 1a stops near the outer opening end 1a and reaches the waterproofing means 2 located above the outer opening end 1a. The amount of rainwater and seawater that reach it will be extremely small, and it will never reach the inner open end 1b.

【0017】[0017]

【実施例】【Example】

図1は本考案に係る一実施例の構成図であり、図1(a) は一部破断側面図、図 1(b) は要部拡大縦断側面図である。 FIG. 1 is a configuration diagram of an embodiment according to the present invention, FIG. 1 (a) is a partially cutaway side view, and FIG. 1 (b) is an enlarged vertical side view of essential parts.

【0018】 この実施例は、先に図5に記載のレーダ装置に適用されるものであり、図1(a ) に示すように、上部ユニット11aと下部ユニット11bとで構成される例え ばAES樹脂製の筐体11と、該筐体11上面に突出させた駆動軸14と、該駆 動軸14に固着された空中線13とよりなる。上記各部材の作用は既述であり、 重複を避けるためここでは省略する。This embodiment is applied to the radar device shown in FIG. 5, and as shown in FIG. 1A, it is composed of an upper unit 11a and a lower unit 11b, for example, an AES. The casing 11 is made of resin, the drive shaft 14 is protruded from the upper face of the casing 11, and the antenna 13 is fixed to the drive shaft 14. The operation of each of the above-mentioned members has already been described, and is omitted here to avoid duplication.

【0019】 上記筐体11の下部ユニット11b下部背面に設けられた外部開口端1aと筐 体11内部であって上記外部開口端1aよりも上方に位置するように設けられた 上部開口端1bとが、筐体11の内面と該筐体11と一体に成形された内部隔壁 3とに囲まれる通気路1で接続されている。さらに上記通気路1内の上部には、 通気性を有する防水手段2が上記筐体11の内側面と内部隔壁3とに設けられた 段部31によって支持されるようにしている。An outer opening end 1 a provided on the lower rear surface of the lower unit 11 b of the housing 11 and an upper opening end 1 b provided inside the housing 11 and above the outer opening end 1 a. Are connected by an air passage 1 surrounded by an inner surface of the housing 11 and an internal partition wall 3 formed integrally with the housing 11. Further, a waterproof means 2 having air permeability is supported on the upper part of the air passage 1 by a step portion 31 provided on the inner side surface of the housing 11 and the inner partition wall 3.

【0020】 上記防水手段2は、通気性を有するとともに水滴の状態で通過させない、ポー ラスな不透水性素材であって、腐食に強いスポンジを使用している。 上記実施例によれば、外部開口端1aから通気路1内に侵入した雨水や海水の ほとんどは、外部開口端1a付近に止まり、該外部開口端1aよりも上方に位置 する防水手段2にまで到達することが極めて少なくなり、内部開口端1bには全 く到達しない。The waterproof means 2 is a porous water-impermeable material that is breathable and does not pass in the form of water droplets, and uses a sponge that is resistant to corrosion. According to the above-mentioned embodiment, most of rainwater or seawater that has entered the ventilation passage 1 from the external opening end 1a stops near the external opening end 1a and reaches the waterproofing means 2 located above the external opening end 1a. The number of arrivals is extremely small, and the inner opening end 1b is not reached at all.

【0021】 従って、上記防水手段2によって雨水や海水が筐体11内部に侵入することを より確実に防止することができることはいうまでもなく、防水手段2には雨水や 海水が含浸され難くなり、該防水手段2から放散される水蒸気によって筐体11 内部に配置した駆動手段や電気系が侵されることも防止できる。Therefore, it goes without saying that the waterproof means 2 can more reliably prevent rainwater or seawater from entering the inside of the housing 11, and the waterproof means 2 is less likely to be impregnated with rainwater or seawater. Also, it is possible to prevent the drive means and the electric system arranged inside the casing 11 from being damaged by the water vapor emitted from the waterproofing means 2.

【0022】 また、図2は防水手段として図1に示す実施例と同様スポンジを採用した他の 実施例の要部拡大縦断側面図である。 図2に示すように、この実施例では、外部開口端1aと内部開口端1bとを接 続する通気路1は筐体11と一体成形のほぼL字型の通気管4によって形成され るとともに、該内部開口端1b(通気管4の上端部)付近の通気路1内に防水手 段2を設けるようにしており、該通気管4は外部開口端1aに向かってやや傾斜 させた横部4aと該横部4aから屈曲して鉛直方向に延びる縦部4bとで構成さ れる。FIG. 2 is an enlarged vertical side view of the essential part of another embodiment in which a sponge is used as the waterproofing means as in the embodiment shown in FIG. As shown in FIG. 2, in this embodiment, the ventilation passage 1 connecting the outer opening end 1a and the inner opening end 1b is formed by a substantially L-shaped ventilation pipe 4 integrally formed with the housing 11. A waterproof step 2 is provided in the ventilation passage 1 near the inner opening end 1b (upper end portion of the ventilation pipe 4), and the ventilation pipe 4 is a lateral portion slightly inclined toward the outer opening end 1a. 4a and a vertical portion 4b which is bent from the horizontal portion 4a and extends in the vertical direction.

【0023】 この実施例も図1に示す実施例と同様、外部開口端1aから通気路1内に侵入 した雨水や海水のほとんどは、横部4aに止まり、防水手段2にまではほとんど 到達しない。また、上記通気管4の横部4aは外部開口端1aに向かってやや傾 斜させているので一旦侵入した水は外部開口端1aから排出される。Also in this embodiment, as in the embodiment shown in FIG. 1, most of rainwater or seawater that has entered the ventilation passage 1 from the outer opening end 1a stops at the lateral portion 4a and hardly reaches the waterproofing means 2. . Further, since the lateral portion 4a of the ventilation pipe 4 is slightly inclined toward the external opening end 1a, water that once entered is discharged from the external opening end 1a.

【0024】 尚、上記の実施例においては横部4aと縦部4bの長さ比をほぼ1:2として いるが、縦部4bの長さを横部4aに比べて充分長くすればするほど、防水手段 2の濡れ防止効果及び筐体11内の防水効果が高くなる。In the above embodiment, the length ratio between the horizontal portion 4a and the vertical portion 4b is approximately 1: 2, but the longer the length of the vertical portion 4b is compared with that of the horizontal portion 4a, the more the length. The waterproofing effect of the waterproofing means 2 and the waterproofing effect inside the housing 11 are enhanced.

【0025】 図3は本考案に係るさらに他の実施例の構成図であり、図3(a) は要部拡大縦 断側面図、図3(b) は防水手段として使用するラビリンス構造体の斜視図である 。FIG. 3 is a configuration diagram of still another embodiment according to the present invention. FIG. 3 (a) is an enlarged vertical side view of a main part, and FIG. 3 (b) is a labyrinth structure used as waterproofing means. It is a perspective view.

【0026】 図3(a) に示すように、筐体11の下部ユニット11b下部側面に設けられた 外部開口端1aと筐体11内部であって上記外部開口端1aよりも上方に位置す るように設けられた上部開口端1bとが、筐体11の内側面と該筐体11と一体 に成形された内部隔壁3とで囲まれる通気路1で接続されている点は、図1に示 す実施例と同等であるが、この実施例では特に防水手段2として図3(b) に示す ような、通気路1に対応する断面形状に成形された、例えば合成ゴム製のラビリ ンス構造体20を採用している。As shown in FIG. 3 (a), the external opening end 1 a provided on the lower side surface of the lower unit 11 b of the housing 11 and the inside of the housing 11 are located above the external opening end 1 a. 1 is that the upper opening end 1b provided in this way is connected by the air passage 1 surrounded by the inner side surface of the housing 11 and the internal partition wall 3 formed integrally with the housing 11. Although it is equivalent to the embodiment shown, in this embodiment, a waterproof structure 2 is formed into a cross-sectional shape corresponding to the ventilation passage 1 as shown in FIG. 3 (b), for example, a synthetic rubber labyrinth structure. The body 20 is adopted.

【0027】 すなわち、このラビリンス構造体20は、フィン21で隔てられた複数の小室 22と該小室22間を相互に連通するようにフィン21に穿設された小孔23と で構成されている。That is, the labyrinth structure 20 is composed of a plurality of small chambers 22 separated by the fins 21 and small holes 23 formed in the fins 21 so that the small chambers 22 communicate with each other. .

【0028】 上記フィン21は通気路1を前後に二分する中央壁21aと該中央壁21aの 表裏面から一定の間隔hをおいて突設された合計8枚の分室壁21bと該複数の 分室壁21bの先端部を相互に接続する補助壁21cとよりなる。The fin 21 includes a central wall 21a that divides the air passage 1 into two parts, a total of eight partition walls 21b projecting from the front and back surfaces of the central wall 21a at a constant interval h, and the plurality of partition walls. It is composed of an auxiliary wall 21c that connects the front ends of the walls 21b to each other.

【0029】 上記中央壁21aの表裏面における分室壁21bの突設位置を上下間隔hの1 /2( 1/2h)だけ上下方向にずらせており、これによってラビリンス構造体2 0を通気路1内に装着した状態では筐体11の内面及び内部隔壁3に分室壁21 bの先端面及び補助壁21cが密着し、通気路1内に6個の小室22がいわゆる 千鳥状に2列となって並列することになる。The projecting positions of the partition walls 21b on the front and back surfaces of the central wall 21a are vertically shifted by 1/2 (1 / 2h) of the vertical interval h, whereby the labyrinth structure 20 is provided with the ventilation path 1. When mounted inside, the tip surface of the partition wall 21b and the auxiliary wall 21c are in close contact with the inner surface of the housing 11 and the internal partition wall 3, and the six small chambers 22 are arranged in two rows in a so-called staggered manner in the air passage 1. Will be parallel.

【0030】 また中央壁21aには、該中央壁21aを隔てて隣接する小室22相互を連通 させる5個、最下部の小室22と外部開口端1aとを連通させる1個、及び最上 部の小室22と内部開口端1bとを連通させる1個の合計7個の小孔23が左右 に千鳥状に穿設され、これによって該ラビリンス構造体20が、外部開口端1a ・内部開口端1b間の通気性を備えるようにしている。尚、この小孔23は中央 壁21aの厚さ方向ではなく、より上部の小室22から下部の小室22に向かっ て傾斜するように該厚さ方向に対して若干角度をもって穿設されている。The central wall 21a has five small chambers 22 that communicate with each other adjacent to each other with the central wall 21a interposed therebetween, one that communicates the lowermost small chamber 22 and the external opening end 1a, and the uppermost small chamber. A total of seven small holes 23, which communicate 22 with the inner opening end 1b, are formed in a zigzag pattern on the left and right, whereby the labyrinth structure 20 is provided between the outer opening end 1a and the inner opening end 1b. It is breathable. The small hole 23 is formed at a slight angle with respect to the thickness direction of the central wall 21a so that the small hole 23 is inclined from the upper small chamber 22 toward the lower small chamber 22.

【0031】 この実施例によっても外部開口端1aから通気路1内に侵入した雨水や海水の ほとんどは、外部開口端1a付近に止まり、該外部開口端1aよりも上方に位置 する内部開口端1b及びラビリンス構造体20(防水手段2)にまで到達するこ とが極めて少なくなる。Also in this embodiment, most of rainwater and seawater that have entered the ventilation passage 1 from the outer opening end 1a stop near the outer opening end 1a and are located above the outer opening end 1a. Also, the labyrinth structure 20 (waterproof means 2) is extremely rarely reached.

【0032】 しかも、このラビリンス構造体20は上記図1、図2に示す実施例の防水手段 2よりも通気性に優れることに加えて、吸湿性のない合成ゴムで構成されている ことと、小孔23をフィン21の中央壁21aの厚さ方向に対して角度をもって 穿設されていることとにより、一旦侵入した雨水や海水を速やかに外部開口端1 aに向かって排出するので、筐体11内部の駆動手段や電気系に向けて水蒸気や 塩分は放散する恐れは全くなくなる。Moreover, the labyrinth structure 20 is superior in breathability to the waterproofing means 2 of the embodiment shown in FIGS. 1 and 2 and is made of synthetic rubber having no hygroscopicity. Since the small holes 23 are formed at an angle with respect to the thickness direction of the central wall 21a of the fin 21, rainwater and seawater that once enter are quickly discharged toward the external opening end 1a. There is no risk of water vapor or salt being dissipated toward the driving means or electric system inside the body 11.

【0033】 さらに、図4は防水手段2としてさらに他の構成のラビリンス構造体を採用し た実施例の要部拡大縦断側面図である。 この実施例で採用されるラビリンス構造体20のフィン21は、通気路1に密 着する前後の周壁21dと各周壁21dより交互に斜め下方向に突設された分離 壁21eとで構成されるとともに、各分離壁21eの先端部と周壁21dとは小 孔23を隔てて分離しており、これによって、側面視において上下一列に並列し た三角形の小室22相互が連通することになる。Further, FIG. 4 is an enlarged vertical cross-sectional side view of an essential part of an embodiment in which a labyrinth structure having another structure is adopted as the waterproofing means 2. The fins 21 of the labyrinth structure 20 employed in this embodiment are composed of front and rear peripheral walls 21d closely attached to the air passage 1 and separation walls 21e alternately projecting downward from the peripheral walls 21d. At the same time, the distal end portion of each separation wall 21e and the peripheral wall 21d are separated by a small hole 23, so that the triangular small chambers 22 arranged side by side in a vertical view communicate with each other.

【0034】 この実施例によっても、ラビリンス構造体20によって雨水や海水が外部開口 端1aから筐体11内部の侵入することを防止するとともに、ラビリンス構造体 20内に水分は止まらずに外部開口端1aから排出されるので、筐体11内部の 駆動手段や電気系に向けて水蒸気や塩分は放散する恐れは全くなくなる。Also in this embodiment, the labyrinth structure 20 prevents rainwater and seawater from entering the inside of the housing 11 through the outer opening end 1a, and the labyrinth structure 20 does not stop moisture and stays at the outer opening end. Since it is discharged from 1a, there is no possibility that water vapor and salt will be diffused toward the driving means and the electric system inside the housing 11.

【0035】 尚、本考案は上記の実施例に限定されるものではなく、レーダ装置以外にも種 々の通信機器や通信施設に適用が可能であり、適用対象に応じて通気路の長さや 形状、防水手段の材質等、本考案の範囲を逸脱しない範囲で種々の応用が可能で あることはもちろんである。The present invention is not limited to the above-described embodiment, but can be applied to various communication devices and communication facilities other than the radar device, and the length of the ventilation path and Needless to say, various applications are possible within the scope of the present invention such as the shape and the material of the waterproofing means.

【0036】[0036]

【考案の効果】[Effect of device]

以上のように本考案によれば、上記筐体側面の外部開口端と、これよりも上方 に位置する内部開口端とを通気路で接続するとともに、通気路内の内部開口端付 近に通気性を有する防水手段を設けたので、外部開口端から雨水や海水が筐体内 部に侵入することを確実に防止できる上、防水手段にもほとんど雨水や海水が接 触しないので、微量の水蒸気や塩分すらも該防水手段から筐体内部に放散されな くなる。 As described above, according to the present invention, the outside opening end of the side surface of the housing and the inside opening end located above the outside opening end are connected to each other by the ventilation passage, and the ventilation is provided near the inside opening end in the ventilation passage. Since the waterproofing means having the property is provided, it is possible to surely prevent rainwater or seawater from entering the inside of the housing through the external opening end, and the rainwater or seawater hardly touches the waterproofing means. Even salt content will not be dissipated from the waterproofing means inside the housing.

【0037】 特に上記防水手段としてポーラスな構造を有する不透水性素材を採用した場合 には低コストで上記効果を奏する利点があり、フィンで隔てられた複数の小室と 該小室間を相互に連通するようにフィンに穿設された小孔とを備えるラビリンス 構造体で構成した場合には筐体内部へ放散される水蒸気や塩分は皆無となる利点 がある。In particular, when a water-impermeable material having a porous structure is used as the waterproofing means, there is an advantage that the above effect can be obtained at a low cost, and a plurality of small chambers separated by fins and the small chambers communicate with each other. As described above, when the labyrinth structure is provided with the small holes formed in the fins, there is an advantage that there is no water vapor or salt released to the inside of the housing.

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

【図1】本考案に係る一実施例の構成図である。FIG. 1 is a configuration diagram of an embodiment according to the present invention.

【図2】本考案に係る他の実施例の要部拡大縦断側面図
である。
FIG. 2 is an enlarged vertical sectional side view of a main part of another embodiment according to the present invention.

【図3】本考案に係るまた他の実施例の構成図である。FIG. 3 is a schematic diagram of another embodiment according to the present invention.

【図4】本考案に係るさらに他の実施例の要部拡大縦断
側面図である。
FIG. 4 is an enlarged vertical sectional side view of a main part of still another embodiment according to the present invention.

【図5】レーダ装置の構成図である。FIG. 5 is a configuration diagram of a radar device.

【図6】従来例の要部拡大縦断側面図である。FIG. 6 is an enlarged vertical sectional side view of a main part of a conventional example.

【図7】他の従来例の要部拡大縦断側面図である。FIG. 7 is an enlarged vertical sectional side view of a main part of another conventional example.

【図8】さらに他の従来例の要部拡大縦断側面図であ
る。
FIG. 8 is an enlarged vertical sectional side view of a main part of still another conventional example.

【符号の説明】[Explanation of symbols]

1 通気路 1a 外部開口端 1b 内部開口端 2 防水手段 11 筐体 20 ラビリンス構造体 21 フィン 22 小室 23 小孔 1 Ventilation path 1a External opening end 1b Internal opening end 2 Waterproofing means 11 Housing 20 Labyrinth structure 21 Fin 22 Small room 23 Small hole

Claims (3)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 電子機器の筐体(11)の内部を外気に連通
させるようにした電子機器の筐体の通気孔において、 上記筐体(11)に設けられた外部開口端(1a)と、筐体(11)
内部であって上記外部開口端(1a)よりも上方に位置する
ように設けられた内部開口端(1b)とを通気路(1) で接続
するとともに、上記内部開口端(1b)付近の通気路(1) 内
に通気性を有する防水手段(2) を設けたことを特徴とす
る電子機器の筐体の通気孔。
1. A ventilation hole of an electronic device casing configured to communicate the inside of the electronic device casing (11) with the outside air, the external opening end (1a) provided on the casing (11). , Case (11)
The inside is connected to the inside opening end (1b) provided so as to be located above the outside opening end (1a) by the ventilation path (1), and the ventilation near the inside opening end (1b) is performed. A ventilation hole of a casing of an electronic device, characterized in that a waterproof means (2) having air permeability is provided in the passage (1).
【請求項2】 上記防水手段(2) を、ポーラスな構造を
有する不透水性素材で構成した請求項1に記載の電子機
器の筐体の通気孔。
2. The ventilation hole of the casing of an electronic device according to claim 1, wherein the waterproofing means (2) is made of a water-impermeable material having a porous structure.
【請求項3】 上記防水手段(2) を、フィン(21)で隔て
られた複数の小室(22)と該小室(22)間を相互に連通する
ようにフィン(21)に穿設された小孔(23)とを備えるラビ
リンス構造体(20)で構成した請求項1に記載の電子機器
の筐体の通気孔。
3. The fin (21) is provided with the waterproofing means (2) so that the plurality of small chambers (22) separated by the fins (21) communicate with each other. The ventilation hole of the casing of the electronic device according to claim 1, wherein the ventilation hole is formed of a labyrinth structure (20) having a small hole (23).
JP4595193U 1993-07-31 1993-07-31 Vent holes in the housing of electronic devices Pending JPH0714677U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4595193U JPH0714677U (en) 1993-07-31 1993-07-31 Vent holes in the housing of electronic devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4595193U JPH0714677U (en) 1993-07-31 1993-07-31 Vent holes in the housing of electronic devices

Publications (1)

Publication Number Publication Date
JPH0714677U true JPH0714677U (en) 1995-03-10

Family

ID=12733591

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4595193U Pending JPH0714677U (en) 1993-07-31 1993-07-31 Vent holes in the housing of electronic devices

Country Status (1)

Country Link
JP (1) JPH0714677U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014106001A (en) * 2012-11-22 2014-06-09 Furuno Electric Co Ltd Radar antenna and radar device having the same
JP2019083256A (en) * 2017-10-30 2019-05-30 愛三工業株式会社 Electronic control unit
JP2019140141A (en) * 2018-02-06 2019-08-22 株式会社デンソー Electronic control device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014106001A (en) * 2012-11-22 2014-06-09 Furuno Electric Co Ltd Radar antenna and radar device having the same
US9497884B2 (en) 2012-11-22 2016-11-15 Furuno Electric Co., Ltd. Radar antenna and radar apparatus
JP2019083256A (en) * 2017-10-30 2019-05-30 愛三工業株式会社 Electronic control unit
JP2019140141A (en) * 2018-02-06 2019-08-22 株式会社デンソー Electronic control device

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