JP7350424B2 - waterproof casing - Google Patents

waterproof casing Download PDF

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JP7350424B2
JP7350424B2 JP2019017628A JP2019017628A JP7350424B2 JP 7350424 B2 JP7350424 B2 JP 7350424B2 JP 2019017628 A JP2019017628 A JP 2019017628A JP 2019017628 A JP2019017628 A JP 2019017628A JP 7350424 B2 JP7350424 B2 JP 7350424B2
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casing
cover member
opening
seat
water
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JP2020126904A (en
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裕也 碓井
司 高間
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アール・ビー・コントロールズ株式会社
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  • Casings For Electric Apparatus (AREA)

Description

本発明は、例えば浴室の天井裏に設置される電源ユニットが収納される防水ケーシングに関する。 The present invention relates to a waterproof casing in which a power supply unit installed, for example, in the ceiling of a bathroom is housed.

上述の電源ユニットやその他の電子部品は水との接触を嫌うため、従来よりケーシング内に収納されている。このようなケーシングとしては、上方に開口したケーシングが用いられ、電子部品はその開口からケーシング内に収納され、収納後に開口に蓋やカバーを取り付けることによって、開口から内部に水が侵入しないように構成されている。 The above-mentioned power supply unit and other electronic components are conventionally housed in a casing because they dislike contact with water. For such casings, a casing with an upward opening is used, and the electronic components are stored inside the casing through the opening, and after storage, a lid or cover is attached to the opening to prevent water from entering the interior through the opening. It is configured.

このようなケーシングの一例として、内部に電子部品を収納した状態で開口に板状の蓋を取り付けたものが知られている（例えば、特許文献１参照）。このものは、上方に向かう開口の周縁から外側に向かって張り出す舌片状の取付部を設け、開口を覆う板状の蓋をこの取付部にネジ止めすると共に、蓋と開口との隙間から水がケーシング内部に侵入しないように、ゴム製のカバーを更に蓋の上から被せている。なお、このカバーは上記取付部に対して蓋と共に共締めされている。従って、このネジ止めした部分に水が浸入しても、その水はケーシング内に侵入することなく取付部の下方に落下する。 As an example of such a casing, there is known a casing in which an electronic component is housed inside and a plate-shaped lid is attached to the opening (for example, see Patent Document 1). This device has a tongue-shaped mounting part that protrudes outward from the periphery of the opening facing upward, and a plate-shaped lid that covers the opening is screwed to this mounting part, and the gap between the lid and the opening is A rubber cover is placed over the lid to prevent water from entering the casing. Note that this cover is fastened to the mounting portion together with the lid. Therefore, even if water enters the screwed portion, the water will fall below the mounting portion without entering the casing.

特開２０１２－１５０９５２号公報（図１、図２）JP 2012-150952 (Figure 1, Figure 2)

上記従来のケーシングでは、開口に蓋を取り付け、更にカバーを被せる必要があるので、部品点数が多くなりコストが高くなるという不具合が生じる。また、蓋とカバーとを共締めにしているので、作業がやりにくく、そのため作業工数が増加するという不具合もある。更に、取付部を外側に張り出して設けているので、ケーシングの設置スペースが広く必要となり、また取付部が破損することを防止する措置も必要となる。 In the conventional casing described above, since it is necessary to attach a lid to the opening and to cover the opening with a cover, there arises a problem that the number of parts increases and the cost increases. Furthermore, since the lid and the cover are tightened together, there is a problem in that the work is difficult and the number of man-hours increases. Furthermore, since the mounting portion is provided so as to protrude outward, a large installation space for the casing is required, and measures are also required to prevent the mounting portion from being damaged.

そこで本発明は、上記の問題点に鑑み、部品点数が少なく、かつ水が電子部品に接触することのない防水ケーシングを提供することを課題とする。 SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a waterproof casing that has a small number of parts and prevents water from coming into contact with electronic components.

上記課題を解決するために本発明による防水ケーシングは、上方に開口するケーシング本体内に電子部品を収納し、そのケーシングの開口を上方から閉塞するカバー部材を、上記ケーシングの内部に設けられ上記カバー部材の下面に当接する座部に対してカバー部材に形成されたネジ挿通孔を挿通するネジによってネジ止めされる防水ケーシングにおいて、上記カバー部材は断面がコ字状の板金製であり、上記座部を上記開口内部に形成し、上記座部と上記電子部品の収納部分との間に、上記ネジ挿通孔を通ってケーシング内部に侵入した水が電子部品に到達することを防止する壁部をケーシング内部に設けたことを特徴とする。 In order to solve the above problems, a waterproof casing according to the present invention stores electronic components in a casing main body that opens upward, and a cover member that closes the opening of the casing from above is provided inside the casing and covers the above-mentioned cover. In a waterproof casing that is screwed to a seat that abuts the lower surface of the member with a screw that is inserted through a screw insertion hole formed in the cover member, the cover member is made of a sheet metal with a U-shaped cross section, and the seat A wall portion is formed inside the opening, and a wall portion is provided between the seat portion and the housing portion for the electronic component to prevent water that has entered the inside of the casing through the screw insertion hole from reaching the electronic component. It is characterized by being provided inside the casing.

上記従来のケーシングでは蓋とカバーとの双方を用いていたが、本発明では上記カバー部材のみで開口を閉じる。なお、カバー部材のネジ止め部分からケーシング内に水が浸入しても、その水は上記壁部で確実に堰止められる。 The conventional casing described above uses both a lid and a cover, but in the present invention, the opening is closed using only the cover member. Note that even if water infiltrates into the casing from the screwed portion of the cover member, the water is reliably dammed up by the wall portion.

以上の説明から明らかなように、本発明は、カバー部材のみでケーシングの開口を閉じることができ、また、カバー部材をケーシングに固定しているネジ止め部分から水がケーシング内に侵入したとしても、その水は上記壁部によって確実に堰止めることができるので、侵入した水が電子部品に接触することがない。 As is clear from the above description, the present invention allows the opening of the casing to be closed only with the cover member, and even if water enters the casing through the screwed portion that fixes the cover member to the casing. Since the water can be reliably dammed up by the wall, the water that has entered will not come into contact with the electronic components.

ケーシング本体にカバー部材を取付た状態を示す図Diagram showing the cover member attached to the casing body ケーシング本体とカバー部材と分離した分解斜視図Exploded perspective view of the casing body and cover member separated

図１を参照して、１は本発明による防水ケーシングの一例である。この防水ケーシング１は樹脂を射出成型したケーシング本体２と、板金製のカバー部材３とから構成されている。このカバー部材３はケーシング本体２に対して２本のネジ１１によってネジ止めされている。 Referring to FIG. 1, 1 is an example of a waterproof casing according to the present invention. This waterproof casing 1 is composed of a casing body 2 made of injection molded resin and a cover member 3 made of sheet metal. This cover member 3 is screwed to the casing body 2 with two screws 11.

ケーシング本体２は長方形に形成されており、その長手方向両端には固定部２１が形成されている。一方、カバー部材３は、ケーシング本体２に固定された状態で、上記長手方向の両端に庇部３１が形成されるように構成されている。また、カバー部材３の折曲部３２はケーシング本体２を側方から覆って、特に上方からの水がケーシング本体２内に侵入することを防止している。 The casing main body 2 is formed in a rectangular shape, and fixing parts 21 are formed at both ends in the longitudinal direction. On the other hand, the cover member 3 is configured such that eaves portions 31 are formed at both ends in the longitudinal direction while the cover member 3 is fixed to the casing body 2 . Further, the bent portion 32 of the cover member 3 covers the casing body 2 from the sides, and prevents water from entering the casing body 2 from above in particular.

図２を参照して、ケーシング本体２は上方に開口する箱状に形成されており、そのケーシング本体２の内部に形成された収納部２２内に電子部品が実装された回路基板４が収納される。上記ネジ１１はカバー部材３の天面に設けられたネジ穴３３に挿通されて、ケーシング本体２に設けられた座部２３に対して螺合をする。この座部２３の高さは、ケーシング本体２の周縁と同じ高さであり、従って、カバー部材３をネジ１１によって固定すると、座部２３の上面はカバー部材３の下面に当接して隙間が生じないように構成されている。 Referring to FIG. 2, the casing body 2 is formed into a box shape that opens upward, and a circuit board 4 on which electronic components are mounted is housed in a housing portion 22 formed inside the casing body 2. Ru. The screw 11 is inserted into a screw hole 33 provided on the top surface of the cover member 3, and is screwed into a seat portion 23 provided on the casing body 2. The height of this seat part 23 is the same as the circumferential edge of the casing body 2. Therefore, when the cover member 3 is fixed with the screws 11, the upper surface of the seat part 23 comes into contact with the lower surface of the cover member 3, creating a gap. It is configured so that it does not occur.

このように構成されているので、上記ネジ穴３３を通って水はほとんどケーシング本体２内に侵入することはない。ただし、万一水がこのネジ穴３３を通ってケーシング本体２内に侵入しても、収納部２２と座部２３との間に壁部２４が形成されているので、侵入してきた水はこの壁部２４で堰き止められ、回路基板４が収納されている収納部２２内に侵入することはない。従って、侵入した水が回路基板４に接触することはない。 With this structure, almost no water enters into the casing body 2 through the screw hole 33. However, even if water should enter the casing body 2 through this screw hole 33, the wall 24 is formed between the storage section 22 and the seat section 23, so the water that has entered will be It is blocked by the wall portion 24 and does not enter the storage portion 22 in which the circuit board 4 is stored. Therefore, the water that has entered will not come into contact with the circuit board 4.

なお、本発明は上記した形態に限定されるものではなく、本発明の要旨を逸脱しない範囲内において種々の変更を加えてもかまわない。 Note that the present invention is not limited to the above embodiments, and various changes may be made without departing from the gist of the present invention.

１ 防水ケーシング
２ ケーシング本体
３ カバー部材
４ 回路基板
１１ ネジ
２１ 固定部
２２ 収納部
２３ 座部
２４ 壁部
３１ 庇部
３２ 折曲部
３３ ネジ穴 1 Waterproof casing 2 Casing body 3 Cover member 4 Circuit board 11 Screw 21 Fixed part 22 Storage part 23 Seat part 24 Wall part 31 Eaves part 32 Bend part 33 Screw hole

Claims (1)

上方に開口するケーシング本体内に電子部品を収納し、そのケーシングの開口を上方から閉塞するカバー部材を、上記ケーシングの内部に設けられ上記カバー部材の下面に当接する座部に対してカバー部材に形成されたネジ挿通孔を挿通するネジによってネジ止めされる防水ケーシングにおいて、上記カバー部材は断面がコ字状の板金製であり、上記座部を上記開口内部に形成し、上記座部と上記電子部品の収納部分との間に、上記ネジ挿通孔を通ってケーシング内部に侵入した水が電子部品に到達することを防止する壁部をケーシング内部に設けたことを特徴とする防水ケーシング。 An electronic component is housed in a casing body that opens upward, and a cover member that closes the opening of the casing from above is attached to the cover member against a seat provided inside the casing and abutting the lower surface of the cover member. In a waterproof casing that is screwed by a screw inserted through a formed screw insertion hole, the cover member is made of a sheet metal having a U-shaped cross section, the seat is formed inside the opening, and the seat and the 1. A waterproof casing characterized in that a wall portion is provided inside the casing between the electronic component storage portion and the wall portion that prevents water that has entered the casing through the screw insertion hole from reaching the electronic components.
JP2019017628A 2019-02-04 2019-02-04 waterproof casing Active JP7350424B2 (en)

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001002114A (en) 1999-06-22 2001-01-09 Nec Corp Sealed case structure
JP2003226346A (en) 2001-11-30 2003-08-12 Yazaki Corp Waterproof structure of electronic component accommodation box
JP2006105335A (en) 2004-10-07 2006-04-20 Mirai Ind Co Ltd Mounting body and box
JP2008141720A (en) 2006-12-04 2008-06-19 Sonichi Jo Waterproof structure of tv
JP2011077099A (en) 2009-09-29 2011-04-14 Saxa Inc Waterproof structure of electronic equipment
JP2011204974A (en) 2010-03-26 2011-10-13 Keihin Corp Electronic controller
JP2012150952A (en) 2011-01-18 2012-08-09 Uchida Yoko Co Ltd Water leak-prevention cover
JP2017017119A (en) 2015-06-30 2017-01-19 株式会社明電舎 Electronic control unit
JP2017017096A (en) 2015-06-29 2017-01-19 株式会社東芝 Equipment
JP2017054745A (en) 2015-09-10 2017-03-16 パナソニックＩｐマネジメント株式会社 Luminaire

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0717185Y2 (en) * 1990-11-29 1995-04-19 双葉電子工業株式会社 Case for remote control device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001002114A (en) 1999-06-22 2001-01-09 Nec Corp Sealed case structure
JP2003226346A (en) 2001-11-30 2003-08-12 Yazaki Corp Waterproof structure of electronic component accommodation box
JP2006105335A (en) 2004-10-07 2006-04-20 Mirai Ind Co Ltd Mounting body and box
JP2008141720A (en) 2006-12-04 2008-06-19 Sonichi Jo Waterproof structure of tv
JP2011077099A (en) 2009-09-29 2011-04-14 Saxa Inc Waterproof structure of electronic equipment
JP2011204974A (en) 2010-03-26 2011-10-13 Keihin Corp Electronic controller
JP2012150952A (en) 2011-01-18 2012-08-09 Uchida Yoko Co Ltd Water leak-prevention cover
JP2017017096A (en) 2015-06-29 2017-01-19 株式会社東芝 Equipment
JP2017017119A (en) 2015-06-30 2017-01-19 株式会社明電舎 Electronic control unit
JP2017054745A (en) 2015-09-10 2017-03-16 パナソニックＩｐマネジメント株式会社 Luminaire

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