JP5950770B2 - Waterproof electronic board box - Google Patents

Waterproof electronic board box Download PDF

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JP5950770B2
JP5950770B2 JP2012196021A JP2012196021A JP5950770B2 JP 5950770 B2 JP5950770 B2 JP 5950770B2 JP 2012196021 A JP2012196021 A JP 2012196021A JP 2012196021 A JP2012196021 A JP 2012196021A JP 5950770 B2 JP5950770 B2 JP 5950770B2
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frame
inner frame
notch
lid
electronic board
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JP2014053405A (en
JP2014053405A5 (en
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雅英 木南
雅英 木南
鈴木　章元
章元 鈴木
石川　正人
正人 石川
周平 横田
周平 横田
久典 池田
久典 池田
洋平 小柳
洋平 小柳
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Mitsubishi Electric Corp
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Description

本発明は、電子基板を露があるような悪条件下でも設置可能とする防水形電子基板ボックスに関する。   The present invention relates to a waterproof electronic board box that allows an electronic board to be installed even under adverse conditions such as dew.

近年、HEMS（Home Energy Management System）やスマートグリッドといった住宅におけるエネルギー管理／省エネルギー需要が高まっている。欧州でも省エネルギーの観点から、宅外からの空調機遠隔制御やエアコン以外の家電機器を含めた集中管理制御に対して強い要望が上がっている。   In recent years, demand for energy management / energy saving in homes such as HEMS (Home Energy Management System) and smart grids is increasing. In Europe, from the viewpoint of energy conservation, there is a strong demand for remote control of air conditioners from outside the home and centralized control including home appliances other than air conditioners.

空調機遠隔制御や集中管理制御を可能とするWi-Fi通信は、無線ＬＡＮルーターやWi-Fiルーターなどのアダプターを必要とするが、欧州・北米を中心に主にオフィスビルやホテル、住宅へも普及が進んでいる。Wi-Fi通信が可能なスマートフォンも急速に普及しており、スマートフォンのアプリケーションを活用したエネルギー管理の拡大が今後見込まれる。   Wi-Fi communication that enables remote control of air conditioners and centralized control requires adapters such as wireless LAN routers and Wi-Fi routers, but mainly to office buildings, hotels, and residences mainly in Europe and North America Is also spreading. Smartphones capable of Wi-Fi communication are also rapidly spreading, and the expansion of energy management utilizing smartphone applications is expected in the future.

そこで、Wi-Fi通信を可能とするアダプターを空気調和機に接続可能とすることが望まれている。その際、アダプターボックス（Wi-Fiアダプターボックス）を空気調和機内部に収納する場合がある。空気調和機内部のアダプターボックス収納場所は、設置スペースの関係で、着露対策用の吸水シート近辺に設定される場合もある。このため、Wi-Fiアダプターボックスは防水形にする必要がある。   Therefore, it is desired that an adapter that enables Wi-Fi communication can be connected to the air conditioner. At that time, the adapter box (Wi-Fi adapter box) may be stored inside the air conditioner. The adapter box storage location inside the air conditioner may be set in the vicinity of the water absorption sheet for preventing condensation due to the installation space. For this reason, the Wi-Fi adapter box needs to be waterproof.

Wi-Fiアダプターボックスに限らず、従来の防水形電子基板ボックスは、蓋でシール材を押さえつけるものとなっている（例えば、特許文献１参照）。   A conventional waterproof electronic board box is not limited to a Wi-Fi adapter box, and a sealing material is pressed with a lid (see, for example, Patent Document 1).

特開２００８−１１６６０号公報（図３）Japanese Patent Laid-Open No. 2008-11660 (FIG. 3)

しかしながら、蓋でシール材を押さえつけるようなものにあっては、蓋が外れたときや、係合が緩んだときに、シール性が悪くなって、水が浸入してしまう恐れがある。   However, in the case where the sealing material is pressed by the lid, when the lid is removed or the engagement is loosened, the sealing performance is deteriorated and water may enter.

また、従来の防水形電子基板ボックスは、ボックス内に収納された電子基板のリード線が、基板接続部から外部にストレート状に引き出されている。そのため、従来の防水形電子基板ボックスは、取付のためのケーブル引き回し時に、リード線が引っ張られて端子が接続部から抜ける恐れがあった。   In the conventional waterproof electronic board box, the lead wire of the electronic board housed in the box is drawn straight out from the board connecting portion. Therefore, in the conventional waterproof electronic board box, there is a possibility that the lead wire is pulled and the terminal comes out of the connection portion when the cable for mounting is routed.

本発明は、前記のような課題を解決するためになされたもので、防水機能の信頼性を高めることを第１の目的とする。加えて、ケーブル引き回し時に、リード線が引っ張られても端子が接続部から抜けることがないようにすることを第２の目的とする。   The present invention has been made to solve the above-described problems, and a first object is to improve the reliability of the waterproof function. In addition, a second object is to prevent the terminal from coming out of the connecting portion even when the lead wire is pulled when the cable is routed.

本発明に係る防水形電子基板ボックスは、外枠と内枠を有し、一端面が開放されて、内枠内に電子基板を収納した二重枠ケースと、弾性材で構成され、内枠の外周に嵌着し、この内枠を開放された一端面側から覆う内蓋と、外枠と内蓋とを開放された一端面側から覆う外蓋と、を備え、内枠には、電子基板のリード線を通すための第１の切欠部が開放端縁より切り欠いて形成され、内蓋には、内枠への嵌着時に、この内枠の開放端縁側から第１の切欠部に挿入されてこの第１の切欠部のエッジを挟み込む凹部を両側に有する切欠部閉塞用突起が設けられており、外枠には、内枠の第１の切欠部の位置とは周方向で異なる位置に、電子基板のリード線から延びるケーブルを外部に引き出すための第２の切欠部が開放端縁より切り欠いて形成され、外枠と内枠との間には、第１の切欠部から第２の切欠部に電子基板のリード線及びこれから延びるケーブルを引き回すための配線部が形成され、外枠及び内枠のそれぞれの底面からの高さは、外枠よりも内枠の方が高くなるように設定されているものである。 A waterproof electronic board box according to the present invention includes an outer frame and an inner frame, and is composed of a double frame case in which one end face is opened and the electronic board is accommodated in the inner frame, and an elastic material. And an outer lid that covers the inner frame from the opened end surface side, and an outer lid that covers the outer frame and the inner lid from the opened end surface side. A first cutout for passing a lead wire of the electronic board is formed by cutting out from the open end edge, and the inner lid is provided with a first cutout from the open end side of the inner frame when fitted to the inner frame. Protrusions for closing the notches are provided on both sides of the recesses that are inserted into the parts and sandwich the edges of the first notches, and the outer frame has a circumferential direction relative to the position of the first notches of the inner frame The second cutout portion for pulling out the cable extending from the lead wire of the electronic board is cut out from the open end at a different position. Between the outer frame and the inner frame, the wiring portion for routing a cable extending lead wire of the electronic substrate and therefrom into the second cut-out portion from the first notch is formed, the outer frame and inner frame, respectively The height from the bottom surface is set so that the inner frame is higher than the outer frame .

本発明の防水形電子基板ボックスにおいては、二重枠ケースの内枠内に電子基板を収納し、弾性材で構成された内蓋を内枠の外周に嵌着し、この内蓋によって内枠を開放された一端面側から覆うとともに、更に外蓋によって外枠と内蓋とを開放された一端面側から覆うようにしている。また、内枠には、電子基板のリード線を通すための第１の切欠部を開放端縁より切り欠いて形成し、内蓋には、内枠への嵌着時に、この内枠の開放端縁側から第１の切欠部に挿入されてこの第１の切欠部のエッジを挟み込む凹部を両側に有する切欠部閉塞用突起を設けている。さらに、外枠には、内枠の第１の切欠部の位置とは周方向で異なる位置に、電子基板のリード線から延びるケーブルを外部に引き出すための第２の切欠部を開放端縁より切り欠いて形成し、外枠と内枠との間には、第１の切欠部から第２の切欠部に電子基板のリード線及びこれから延びるケーブルを引き回すための配線部を形成している。また、外枠及び内枠のそれぞれの底面からの高さは、外枠よりも内枠の方が高くなるように設定している。そのため、ケーブル引き回し時や、外蓋が外れたときや、係合が緩んだときでも電子基板の収納部である内枠のシール性に影響を与えることがなく、水の浸入が防止される。このため、安定した防水効果が得られ、信頼性を確保できる。 In the waterproof electronic board box of the present invention, the electronic board is accommodated in the inner frame of the double frame case, and an inner lid made of an elastic material is fitted to the outer periphery of the inner frame, and the inner frame is formed by the inner lid. Is covered from the opened one end surface side, and further, the outer frame and the inner lid are covered from the opened one end surface side by the outer lid. Further, the inner frame is formed with a first notch for passing the lead wire of the electronic board cut out from the open end edge, and the inner lid is opened when the inner frame is fitted to the inner frame. Protrusions for closing the notch portions are provided on both sides having recesses that are inserted into the first notch portion from the end edge side and sandwich the edge of the first notch portion. Further, the outer frame has a second notch for pulling the cable extending from the lead wire of the electronic board to the outside at a position different from the position of the first notch of the inner frame in the circumferential direction from the open end edge. A notch is formed between the outer frame and the inner frame, and a wiring part is formed between the first notch part and the second notch part for routing the lead wire of the electronic board and the cable extending therefrom. Further, the height from the bottom surface of each of the outer frame and the inner frame is set so that the inner frame is higher than the outer frame. Therefore, even when the cable is routed, when the outer lid is removed, or when the engagement is loosened, the sealing performance of the inner frame that is the storage portion of the electronic substrate is not affected, and water can be prevented from entering. For this reason, the stable waterproofing effect is acquired and reliability can be ensured.

実施形態に係る電子基板ボックスの外観を示す斜視図である。It is a perspective view which shows the external appearance of the electronic substrate box which concerns on embodiment. 実施形態に係る電子基板ボックスの分解斜視図である。It is a disassembled perspective view of the electronic substrate box which concerns on embodiment. 実施形態に係る電子基板ボックスの断面図である。It is sectional drawing of the electronic substrate box which concerns on embodiment. 実施形態に係る電子基板ボックスの二重枠ケースの斜視図である。It is a perspective view of the double frame case of the electronic substrate box which concerns on embodiment. 実施形態に係る電子基板ボックスのゴム製の内蓋の斜視図である。It is a perspective view of the rubber inner lid of the electronic board box concerning an embodiment. 実施形態に係る電子基板（Wi-Fi搭載基板）とリード線と二重枠ケースとの関係を示す平面図である。It is a top view which shows the relationship between the electronic substrate (Wi-Fi mounting board | substrate) which concerns on embodiment, a lead wire, and a double frame case. 実施形態に係るゴム製の内蓋と二重枠ケースとの関係を示す断面図である。It is sectional drawing which shows the relationship between the rubber-made inner lids and double frame case which concern on embodiment.

図１は実施形態に係る電子基板ボックスの外観を示す斜視図である。図２は実施形態に係る電子基板ボックスの分解斜視図である。図３は実施形態に係る電子基板ボックスの断面図である。   FIG. 1 is a perspective view showing an appearance of an electronic board box according to the embodiment. FIG. 2 is an exploded perspective view of the electronic board box according to the embodiment. FIG. 3 is a cross-sectional view of the electronic substrate box according to the embodiment.

本発明の実施形態に係る防水形電子基板ボックス１は、図１〜図３のように外枠２ａと内枠２ｂとを有し一端面が開放された樹脂製で有底の二重枠ケース２と、弾性材（例えばゴム）で構成され、その弾性力を利用して内枠２ｂの外周に嵌着し、内枠２ｂを開放された一端面側から覆う内蓋３と、外枠２ａと内蓋３とを開放された一端面側から覆う樹脂製の外蓋４とを備えている。そして、内枠２ｂ内は、電子基板（例えばWi-Fi搭載基板）５の収納部６として構成されている。電子基板５のリード線７及びこれから延びるケーブル７ａは、外枠２ａと内枠２ｂとの間に形成された配線部２ｇで引き回されてから、外部に引き出されるようになっている。また、二重枠ケース２には、外枠２ａの開放端縁の複数箇所に、外蓋４との係合用のフック２ｅが突設されている。また、二重枠ケース２には、電子基板５の収納部６に、電子基板５を位置決め固定するための基板用フック２ｆが底面より立設して設けられている。一方、外蓋４には、そのフランジ４ａの周方向複数箇所に、二重枠ケース２の各フック２ｅと係合可能な係止穴４ｂが形成されている。   A waterproof electronic board box 1 according to an embodiment of the present invention is a resin-bottomed double-frame case having an outer frame 2a and an inner frame 2b and having an open end as shown in FIGS. 2 and an elastic material (for example, rubber). The inner lid 3 is fitted to the outer periphery of the inner frame 2b using the elastic force, and covers the inner frame 2b from the opened end surface side, and the outer frame 2a. And an outer lid 4 made of resin that covers the inner lid 3 from the opened end surface side. The inner frame 2 b is configured as a storage unit 6 for an electronic substrate (for example, a Wi-Fi mounting substrate) 5. The lead wire 7 of the electronic substrate 5 and the cable 7a extending therefrom are routed by the wiring portion 2g formed between the outer frame 2a and the inner frame 2b and then pulled out to the outside. The double frame case 2 is provided with hooks 2e for engagement with the outer lid 4 at a plurality of locations on the open end edge of the outer frame 2a. In addition, the double frame case 2 is provided with a board hook 2f for positioning and fixing the electronic board 5 upright from the bottom surface in the housing part 6 of the electronic board 5. On the other hand, the outer lid 4 is formed with locking holes 4b that can be engaged with the hooks 2e of the double frame case 2 at a plurality of locations in the circumferential direction of the flange 4a.

図４は実施形態に係る電子基板ボックスの二重枠ケースの斜視図である。図４に示すように、二重枠ケース２は、矩形状を呈し、外枠２ａ及び内枠２ｂのそれぞれの底面からの高さは、外枠２ａよりも内枠２ｂの方が高くなるように設定されている。また、二重枠ケース２には、内枠２ｂの短辺側の一辺に、電子基板５のリード線７を通すための第１の切欠部２ｃが開放端縁より切り欠いて形成されている。また、二重枠ケース２には、外枠２ａにおける内枠２ｂの第１の切欠部２ｃの位置とは周方向で異なる長辺側の一辺に、図２に示す電子基板５のリード線７から延びるケーブル７ａを外部に引き出すための第２の切欠部２ｄが開放端縁より切り欠いて形成されている。外枠２ａと内枠２ｂとの間に形成されている既述した配線部２ｇには、第１の切欠部２ｃから第２の切欠部２ｄに電子基板５のリード線７及びこれから延びるケーブル７ａを引き回せるようになっている。   FIG. 4 is a perspective view of a double frame case of the electronic board box according to the embodiment. As shown in FIG. 4, the double frame case 2 has a rectangular shape, and the height from the bottom surface of each of the outer frame 2a and the inner frame 2b is higher in the inner frame 2b than in the outer frame 2a. Is set to Further, the double frame case 2 is formed with a first cutout portion 2c for passing the lead wire 7 of the electronic substrate 5 on one side of the short side of the inner frame 2b cut out from the open end edge. . Further, the double frame case 2 has a lead wire 7 of the electronic substrate 5 shown in FIG. 2 on one side of the long side which is different from the position of the first notch 2c of the inner frame 2b in the outer frame 2a in the circumferential direction. A second cutout portion 2d for drawing the cable 7a extending from the outside to the outside is formed by cutting out from the open end edge. In the wiring part 2g described above formed between the outer frame 2a and the inner frame 2b, the lead wire 7 of the electronic board 5 and the cable 7a extending from the first notch part 2c to the second notch part 2d are provided. Can be drawn around.

図５は実施形態に係る電子基板ボックスのゴム製の内蓋の斜視図である。図５に示すように、内蓋３には、その外周縁部に、内枠２ｂの外周面と密着可能なフランジ３ａが設けられている。また、内蓋３には、二重枠ケース２の内枠２ｂへの嵌着時に、内枠２ｂの開放端縁側から第１の切欠部２ｃに挿入されて、第１の切欠部２ｃのエッジを挟み込む凹部３ｂを両側に有する切欠部閉塞用突起３ｃが設けられている。   FIG. 5 is a perspective view of a rubber inner lid of the electronic board box according to the embodiment. As shown in FIG. 5, the inner lid 3 is provided with a flange 3 a that can be in close contact with the outer peripheral surface of the inner frame 2 b at the outer peripheral edge thereof. Further, when the double frame case 2 is fitted to the inner frame 2b, the inner lid 3 is inserted into the first cutout portion 2c from the open end edge side of the inner frame 2b, and the edge of the first cutout portion 2c is inserted. A notch portion closing projection 3c having recesses 3b on both sides is provided.

次に、図６、図７に基づき前記図１〜図５を参照しながら実施形態に係る防水形電子基板ボックスの組立手順について説明する。図６は実施形態に係る電子基板とリード線と二重枠ケースとの関係を示す平面図である。図７は実施形態に係るゴム製の内蓋と二重枠ケースとの関係を示す断面図である。
実施形態に係る防水形電子基板ボックスの組立は、まず図４に示す二重枠ケース２の内枠２ｂ内の収納部６に、図２に示す電子基板５を収納し、図６のように基板用フック２ｆと係合させ、位置決め固定する。次いで、図５に示すゴム製の内蓋３の切欠部閉塞用突起３ｃの凹部３ｂ内に、二重枠ケース２の内枠２ｂの第１の切欠部２ｃのエッジが嵌入するように、二重枠ケース２と内蓋３との位置合わせを行う。次いで、内蓋３を内枠２ｂ側に押し込み、内蓋３を内枠２ｂに嵌着させ、内蓋３のフランジ３ａを内枠２ｂの外周面と密着させることで、内蓋３で内枠２ｂを覆い、同時に図７のように内枠２ｂの第１の切欠部２ｃを内蓋３の切欠部閉塞用突起３ｃにて閉塞する。その後、外蓋４を二重枠ケース２側へ押し付けることで、外蓋４の係止穴４ｂと二重枠ケース２のフック２ｅとをその弾性力を利用して係合させ、外蓋４にて外枠２ａすなわち二重枠ケース２を閉塞する。 Next, an assembly procedure of the waterproof electronic board box according to the embodiment will be described with reference to FIGS. 1 to 5 based on FIGS. FIG. 6 is a plan view showing a relationship among the electronic substrate, the lead wire, and the double frame case according to the embodiment. FIG. 7 is a cross-sectional view showing the relationship between the rubber inner lid and the double frame case according to the embodiment.
In the assembly of the waterproof electronic board box according to the embodiment, first, the electronic board 5 shown in FIG. 2 is stored in the storage part 6 in the inner frame 2b of the double frame case 2 shown in FIG. Engage with the board hook 2f to fix the positioning. Next, the edge of the first notch 2c of the inner frame 2b of the double frame case 2 is fitted in the recess 3b of the notch closing projection 3c of the rubber inner lid 3 shown in FIG. The positioning of the heavy frame case 2 and the inner lid 3 is performed. Next, the inner lid 3 is pushed into the inner frame 2b side, the inner lid 3 is fitted to the inner frame 2b, and the flange 3a of the inner lid 3 is brought into close contact with the outer peripheral surface of the inner frame 2b. At the same time, the first cutout portion 2c of the inner frame 2b is closed by the cutout portion closing projection 3c of the inner lid 3 as shown in FIG. Thereafter, the outer lid 4 is pressed against the double frame case 2 side to engage the locking hole 4b of the outer lid 4 with the hook 2e of the double frame case 2 using its elastic force. The outer frame 2a, that is, the double frame case 2 is closed.

以上のように、実施形態に係る防水形電子基板ボックス１は、外枠２ａと内枠２ｂを有し、一端面が開放されて、内枠２ｂ内に電子基板５を収納可能な有底の二重枠ケース２と、弾性力を利用して内枠２ｂの外周に嵌着し、内枠２ｂを開放された一端面側から覆うゴム製の内蓋３と、外枠２ａと内蓋３を開放された一端面側から覆う外蓋４とで構成したので、外蓋４が外れたときや、外蓋４と二重枠ケース２との係合が緩んだときでも電子基板５の収納部６のシール性に影響を与えることがなく、水の浸入が防止される。このため、電子基板５の収納部６の密閉度が高く、例えば空気調和機の内部の露が付くような場所においても、安定した防水効果が得られ、信頼性を確保できる。   As described above, the waterproof electronic substrate box 1 according to the embodiment has the outer frame 2a and the inner frame 2b, and has a bottomed end that is open at one end and can store the electronic substrate 5 in the inner frame 2b. A double frame case 2, a rubber inner lid 3 that fits to the outer periphery of the inner frame 2b using elastic force, and covers the inner frame 2b from the opened one end side, an outer frame 2a, and an inner lid 3 Since the outer cover 4 covers from the open end surface side, the electronic substrate 5 can be stored even when the outer cover 4 is removed or when the engagement between the outer cover 4 and the double frame case 2 is loosened. The infiltration of water is prevented without affecting the sealing performance of the portion 6. For this reason, the sealing | blocking degree of the accommodating part 6 of the electronic board | substrate 5 is high, for example, the stable waterproof effect is acquired and the reliability can be ensured also in the place where the dew inside an air conditioner attaches.

また、二重枠ケース２の内枠２ｂには、電子基板５のリード線７を通すための第１の切欠部２ｃを開放端縁より切り欠いて形成するとともに、内蓋３には、二重枠ケース２の内枠２ｂへの嵌着時に、内枠２ｂの開放端縁側から第１の切欠部２ｃに挿入されて、第１の切欠部２ｃのエッジを挟み込む凹部３ｂを両側に有する切欠部閉塞用突起３ｃを設けたので、内蓋３の内枠２ｂへの嵌着時に、切欠部閉塞用突起３ｃによって第１の切欠部２ｃを閉塞することができる。このため、防水効果が高まる。   In addition, the inner frame 2b of the double frame case 2 is formed with a first cutout portion 2c for passing the lead wire 7 of the electronic substrate 5 cut out from the open end edge, and the inner lid 3 has two A notch having recesses 3b on both sides that are inserted into the first notch 2c from the open end edge side of the inner frame 2b and sandwich the edge of the first notch 2c when the heavy frame case 2 is fitted to the inner frame 2b Since the portion closing projection 3c is provided, the first cutout portion 2c can be closed by the cutout portion closing projection 3c when the inner lid 3 is fitted to the inner frame 2b. For this reason, a waterproof effect increases.

また、二重枠ケース２には、外枠２ａにおける内枠２ｂの第１の切欠部２ｃの位置とは周方向で異なる位置に、電子基板５のリード線７から延びるケーブル７ａを外部に引き出すための第２の切欠部２ｄを設けるとともに、外枠２ａと内枠２ｂとの間に、第１の切欠部２ｃから第２の切欠部２ｄに電子基板５のリード線７及びこれから延びるケーブル７ａを引き回すための配線部２ｇを形成したので、ケーブル引き回し時に、リード線７が引っ張られても端子が接続部から抜けることがなく、安定した端子接続状態が得られる。   Further, in the double frame case 2, a cable 7a extending from the lead wire 7 of the electronic board 5 is pulled out to a position different from the position of the first notch 2c of the inner frame 2b in the outer frame 2a in the circumferential direction. A second notch 2d is provided, and a lead wire 7 of the electronic board 5 and a cable 7a extending from the first notch 2c to the second notch 2d are provided between the outer frame 2a and the inner frame 2b. Since the wiring portion 2g for routing is formed, even when the lead wire 7 is pulled when the cable is routed, the terminal does not come out of the connection portion, and a stable terminal connection state is obtained.

また、ゴム製の内蓋３には、内枠２ｂの外周面と密着可能なフランジ３ａを設けているので、安定した嵌着状態が得られる。   In addition, since the rubber inner lid 3 is provided with the flange 3a that can be in close contact with the outer peripheral surface of the inner frame 2b, a stable fitting state can be obtained.

また、二重枠ケース２と外蓋４とをいずれも樹脂で構成したので、防錆効果が得られる。   Moreover, since both the double frame case 2 and the outer lid 4 are made of resin, a rust prevention effect can be obtained.

１ 防水形電子基板ボックス、２ 二重枠ケース、２ａ 外枠、２ｂ 内枠、２ｃ 第１の切欠部、２ｄ 第２の切欠部、２ｅ フック、２ｆ 基板用フック、２ｇ 配線部、３ 内蓋、３ａ フランジ、３ｂ 凹部、３ｃ 切欠部閉塞用突起、４ 外蓋、４ａ フランジ、４ｂ 係止穴、５ 電子基板、６ 収納部、７ リード線、７ａ ケーブル。   DESCRIPTION OF SYMBOLS 1 Waterproof type electronic board box, 2 Double frame case, 2a Outer frame, 2b Inner frame, 2c 1st notch part, 2d 2nd notch part, 2e hook, 2f Board hook, 2g Wiring part, 3 Inner lid 3a flange, 3b recess, 3c notch block closing projection, 4 outer lid, 4a flange, 4b locking hole, 5 electronic board, 6 storage section, 7 lead wire, 7a cable.

Claims (3)

外枠と内枠を有し、一端面が開放されて、前記内枠内に電子基板を収納した二重枠ケースと、
弾性材で構成され、前記内枠の外周に嵌着し、該内枠を開放された一端面側から覆う内蓋と、
前記外枠と前記内蓋とを開放された一端面側から覆う外蓋と、
を備え、
前記内枠には、前記電子基板のリード線を通すための第１の切欠部が開放端縁より切り欠いて形成され、
前記内蓋には、前記内枠への嵌着時に、該内枠の開放端縁側から前記第１の切欠部に挿入されて該第１の切欠部のエッジを挟み込む凹部を両側に有する切欠部閉塞用突起が設けられており、
前記外枠には、前記内枠の前記第１の切欠部の位置とは周方向で異なる位置に、前記電子基板のリード線から延びるケーブルを外部に引き出すための第２の切欠部が開放端縁より切り欠いて形成され、
前記外枠と前記内枠との間には、前記第１の切欠部から前記第２の切欠部に前記電子基板のリード線及びこれから延びるケーブルを引き回すための配線部が形成され、
前記外枠及び前記内枠のそれぞれの底面からの高さは、前記外枠よりも前記内枠の方が高くなるように設定されている
ことを特徴とする防水形電子基板ボックス。 A double frame case having an outer frame and an inner frame, one end surface of which is opened, and an electronic substrate is housed in the inner frame;
An inner lid that is made of an elastic material, is fitted to the outer periphery of the inner frame, and covers the inner frame from the opened end surface side;
An outer lid that covers the outer frame and the inner lid from the open end surface side;
With
The inner frame is formed with a first cutout for passing the lead wire of the electronic board cut out from the open edge,
The inner lid has notches having recesses on both sides that are inserted into the first notch from the open end side of the inner frame and sandwich the edge of the first notch when fitted to the inner frame. Protrusion for closure is provided,
The outer frame has an open end with a second notch for pulling out a cable extending from the lead wire of the electronic substrate to a position different from the position of the first notch of the inner frame in the circumferential direction. Formed by cutting out from the edge,
Between the outer frame and the inner frame, a wiring part is formed for routing the lead wire of the electronic board and the cable extending therefrom from the first notch part to the second notch part ,
The waterproof electronic board box , wherein the height from the bottom surface of each of the outer frame and the inner frame is set so that the inner frame is higher than the outer frame . 前記内蓋は、ゴム製であり、その外周縁部には前記内枠の外周面と密着可能なフランジが設けられていることを特徴とする請求項１記載の防水形電子基板ボックス。   2. The waterproof electronic board box according to claim 1, wherein the inner lid is made of rubber, and a flange capable of being in close contact with an outer peripheral surface of the inner frame is provided on an outer peripheral edge portion thereof. 前記二重枠ケースと前記外蓋とは、樹脂で構成されていることを特徴とする請求項１又は２記載の防水形電子基板ボックス。   The waterproof electronic substrate box according to claim 1 or 2, wherein the double frame case and the outer lid are made of resin.
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