JPH0531468U - Waterproof case for outdoor surveillance video camera - Google Patents
Waterproof case for outdoor surveillance video cameraInfo
- Publication number
- JPH0531468U JPH0531468U JP8850491U JP8850491U JPH0531468U JP H0531468 U JPH0531468 U JP H0531468U JP 8850491 U JP8850491 U JP 8850491U JP 8850491 U JP8850491 U JP 8850491U JP H0531468 U JPH0531468 U JP H0531468U
- Authority
- JP
- Japan
- Prior art keywords
- waterproof case
- video camera
- porous film
- waterproof
- surveillance video
- 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
Links
- 229920002678 cellulose Polymers 0.000 claims abstract description 4
- 239000001913 cellulose Substances 0.000 claims abstract description 4
- 229920000728 polyester Polymers 0.000 claims abstract description 4
- 229920006254 polymer film Polymers 0.000 claims abstract description 4
- 229920000098 polyolefin Polymers 0.000 claims abstract description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 4
- 229920002635 polyurethane Polymers 0.000 claims abstract description 4
- 239000004814 polyurethane Substances 0.000 claims abstract description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 4
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract 2
- 229920000570 polyether Polymers 0.000 claims abstract 2
- 238000000034 method Methods 0.000 description 7
- 230000005494 condensation Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000004927 fusion Effects 0.000 description 4
- 239000000088 plastic resin Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Structure And Mechanism Of Cameras (AREA)
Abstract
(57)【要約】
【目的】 気温が変化してもレンズ表面及び防水ケース
内面が結露せず、同時に防水性と防塵性を兼備する屋外
監視用ビデオカメラの防水ケースを提供する。
【構成】 屋外監視用ビデオカメラのレンズ部を外気よ
り遮断して収納する防水ケースの一部に防水通気性の多
孔質フィルムを設けたことを特徴とする防水ケース。多
孔質フィルムとして、ポリオレフィン系、ポリウレタン
系、ポリエステル系、ポリエーテル系、ポリ塩化ビニル
系、セルロース系の多孔質高分子フィルム、好ましくは
延伸多孔質ポリテトラフルオロエチレンフィルムを用い
る。(57) [Summary] [Purpose] To provide a waterproof case for an outdoor surveillance video camera which does not condense on the lens surface and the inner surface of the waterproof case even when the temperature changes, and at the same time has both waterproofness and dustproofness. [Structure] A waterproof case characterized in that a waterproof breathable porous film is provided in a part of a waterproof case for housing a lens part of an outdoor surveillance video camera while being shielded from the outside air. As the porous film, a polyolefin-based, polyurethane-based, polyester-based, polyether-based, polyvinyl chloride-based, or cellulose-based porous polymer film, preferably a stretched porous polytetrafluoroethylene film is used.
Description
【０００１】[0001]
本考案は屋外監視用ビデオカメラの防水ケースの改良に関するものである。 The present invention relates to an improvement of a waterproof case for an outdoor surveillance video camera.
【０００２】[0002]
図２に従来の屋外監視用ビデオカメラを一部切欠側面図で示す。図中１１は防 水ケース、１２はビデオカメラ本体部、１３はビデオカメラレンズ部である。屋 外監視用ビデオカメラのレンズ部１３を収納する防水ケース１１としては従来、 プラスチック樹脂製の密閉容器が一般に使用されている。 FIG. 2 is a partially cutaway side view of a conventional outdoor surveillance video camera. In the figure, 11 is a waterproof case, 12 is a video camera main body, and 13 is a video camera lens. As the waterproof case 11 for housing the lens portion 13 of the outdoor surveillance video camera, a closed container made of plastic resin has been generally used.
【０００３】 しかし、従来の防水ケースでは、ケース内に閉じ込められた空気中の水分が、 気温の変化に伴う飽和蒸気量の変化により、レンズ表面あるいは防水ケース内面 で露点以下に冷やされ結露したり、暖められ蒸発したりする現象が繰り返し起こ る。特に気温が下がってケース内に閉じ込められた空気に含まれる水分が空気中 に溶け込めなくなり、レンズ表面及びケース内面で露点以下に冷やされ結露した 場合、これらの部分で曇が生じた状態となり、ビデオ撮影に支障をきたすという 問題がある。However, in the conventional waterproof case, the moisture in the air trapped in the case is cooled to a temperature below the dew point on the lens surface or the inner surface of the waterproof case due to the change of the saturated vapor amount with the change of the temperature, and the dew condensation occurs. The phenomenon of being heated and evaporating occurs repeatedly. Especially when the temperature drops and the water contained in the air trapped inside the case does not dissolve in the air and is cooled below the dew point on the lens surface and inside the case to cause dew condensation, these parts become clouded and the video is lost. There is a problem that it interferes with shooting.
【０００４】 このような問題を解決するために実開昭６３−１３０７２４号において防水ケ ースの一部に通気孔を設ける方法が開示されているが、この方法ではレンズ表面 及び防水ケース内面に結露が生じるのを防止することはできるが、その反面、防 水ケース本来の目的であるはずの防水性と防塵性を損なってしまい、実用的でな く、何ら上記問題を解決したことにはならない。In order to solve such a problem, Japanese Utility Model Application Laid-Open No. 63-130724 discloses a method of providing a ventilation hole in a part of a waterproof case. In this method, the lens surface and the inner surface of the waterproof case are disclosed. Although it is possible to prevent the formation of dew condensation, on the other hand, it impairs the waterproofness and dustproofness, which should be the original purpose of the waterproof case, is impractical, and it is impossible to solve the above problems. I won't.
【０００５】[0005]
本考案は、従来技術に見られる前記問題を解決するためになされたもので、気 温が変化してもレンズ表面及び防水ケース内面が結露せず、同時に防水性と防塵 性を兼備する屋外監視用ビデオカメラの防水ケースを提供することをその課題と する。 The present invention has been made to solve the above-mentioned problems found in the prior art. Even when the temperature changes, the lens surface and the inner surface of the waterproof case do not condense, and at the same time, the outdoor monitoring has both waterproofness and dustproofness. It is an object of the present invention to provide a waterproof case for a video camera.
【０００６】[0006]
本考案者らは、前記課題を解決すべく鋭意研究を重ねた結果、本考案を完成す るに至った。 即ち、本考案によれば、屋外監視用ビデオカメラのレンズ部を外気より遮断し て収納する防水ケースの一部に防水通気性の多孔質フィルムを設けたことを特徴 とする防水ケースが提供される。 The inventors of the present invention have completed the present invention as a result of earnest studies to solve the above problems. That is, according to the present invention, there is provided a waterproof case characterized in that a waterproof breathable porous film is provided on a part of a waterproof case for housing a lens part of an outdoor surveillance video camera while being shielded from the outside air. It
【０００７】 本考案の防水ケースの一部に用いる多孔質フィルムとしては、ポリオレフィン 系、ポリウレタン系、ポリエステル系、ポリ塩化ビニル系、セルロース系等の従 来公知の多孔質高分子フィルムを任意に使用できるが、好ましくは延伸ポリテト ラフルオロエチレン（特公昭５６−４５７７３号、特公昭５６−１７２１６号） を用いるのがよい。この多孔質フィルムは少なくとも防水性と通気性を兼備して いるもので、平均細孔直径は１．０μｍ以下、好ましくは０．５μｍ以下であり 、透湿度は少なくとも１０００ｇ／ｍ2 ・２４ｈｒ以上、好ましくは５０００ｇ ／ｍ2 ・２４ｈｒ以上（ＪＩＳ Ｌ １０９９ Ｂ法）であり、耐熱性は少なく とも４０℃以上、好ましくは７０℃以上である。また、この多孔質フィルムの厚 さは、通常、５〜２００μｍ、好ましくは１０〜１００μｍである。As the porous film used as a part of the waterproof case of the present invention, any conventionally known porous polymer film such as polyolefin-based, polyurethane-based, polyester-based, polyvinyl chloride-based, cellulose-based etc. may be used. However, it is preferable to use drawn polytetrafluoroethylene (Japanese Patent Publication Nos. 56-45773 and 56-17216). This porous film is at least waterproof and breathable, has an average pore diameter of 1.0 μm or less, preferably 0.5 μm or less, and a moisture permeability of at least 1000 g / m 2 · 24 hr or more, The heat resistance is preferably 5000 g / m 2 · 24 hr or more (JIS L 1099 B method), and the heat resistance is at least 40 ° C or more, preferably 70 ° C or more. The thickness of this porous film is usually 5 to 200 μm, preferably 10 to 100 μm.
【０００８】 防水ケース本体部分と多孔質フィルムの固定法としては、接着剤による接着等 の方法もあるが、超音波融着、又は熱融着により、多孔質フィルムと防水ケース 本体部分を該本体部分のプラスチック樹脂で溶着するのが接着部分の耐久性に優 れ、コストも安く好ましい。As a method of fixing the waterproof case main body portion and the porous film, there is a method such as adhesion with an adhesive, but the porous film and the waterproof case main body portion are bonded to each other by ultrasonic fusion or heat fusion. Welding with a plastic resin on the part is preferable because the durability of the bonded part is excellent and the cost is low.
【０００９】 本考案では、防水ケースの一部に、防水通気性の多孔質フィルムを使用するこ とにより、ケース内外の空気の移動ができるようになり、ケース内外の温湿度条 件を常に同程度に保つことができるため、密閉された空気内に含まれる水分が温 度の変化によってレンズ表面及び防水ケース内面に結露するという問題を完全に 解決できる。多孔質フィルムは防水性を有するため、そのままケースの外壁材の 一部として用いることが可能である。又、屋外監視用ビデオカメラの場合、屋外 で使用されるため、防水ケース内に塵埃が侵入するとレンズ表面及び防水ケース 内面に塵埃が付着して撮影に支障をきたすが、多孔質フィルムを使用すれば、多 孔質フィルムが塵埃のケース内への侵入を阻止するフィルターの役割をするため 、このような問題が起こらない。In the present invention, by using a waterproof and breathable porous film as a part of the waterproof case, it is possible to move air inside and outside the case, and the temperature and humidity conditions inside and outside the case are always the same. Since it can be maintained at a certain level, it is possible to completely solve the problem that the moisture contained in the closed air condenses on the lens surface and the inner surface of the waterproof case due to the temperature change. Since the porous film is waterproof, it can be used as it is as a part of the outer wall material of the case. In addition, since the video camera for outdoor monitoring is used outdoors, if dust enters the waterproof case, dust will adhere to the lens surface and the inner surface of the waterproof case, which will interfere with shooting. For example, since the multi-porous film acts as a filter that prevents dust from entering the case, such a problem does not occur.
【００１０】[0010]
以下、本考案を実施例に基づき図面を参照しながら具体的に説明する。 図１は本考案による防水ケースを装着した屋外監視用ビデオカメラの一部切欠 断面図であり、防水ケース本体部１、多孔質フィルム２、ビデオカメラ本体部３ 、ビデオカメラレンズ部４とから構成される。防水ケース本体部１は従来使用さ れている透明プラスチック樹脂ケースのようなものが使用可能である。多孔質フ ィルム２としては、ポリオレフィン系、ポリウレタン系、ポリエステル系、ポリ 塩化ビニル系、セルロース系等の従来公知の多孔質高分子フィルム、あるいは延 伸多孔質ポリテトラフルオロエチレンフィルムであって、前述した性質のものが 使用される。防水ケース本体部１と多孔質フィルム２の固定は、接着剤による接 着等の方法、あるいは、超音波融着、熱融着により、多孔質フィルムと防水ケー ス本体部分を該本体部分のプラスチック樹脂で溶着する方法でなされる。 Hereinafter, the present invention will be specifically described based on embodiments with reference to the drawings. FIG. 1 is a partially cutaway sectional view of an outdoor surveillance video camera equipped with a waterproof case according to the present invention, which includes a waterproof case body 1, a porous film 2, a video camera body 3, and a video camera lens portion 4. To be done. The waterproof case body 1 may be a transparent plastic resin case that is conventionally used. The porous film 2 may be a conventionally known porous polymer film such as a polyolefin-based, polyurethane-based, polyester-based, polyvinyl chloride-based, or cellulose-based film, or an expanded porous polytetrafluoroethylene film. The thing of the said characteristic is used. The waterproof case main body 1 and the porous film 2 are fixed to each other by a method such as adhesive bonding, or ultrasonic fusion or heat fusion to fix the porous film and the waterproof case main body to the plastic portion of the main body. It is made by a resin welding method.
【００１１】[0011]
本考案によれば、屋外監視用ビデオカメラのレンズ部を外気より遮断して収納 する防水ケースの一部に防水通気性の多孔質フィルムを設けたので、気温が変化 してもレンズ表面及びケース内面に結露による曇が発生せず、また外部からケー ス内への塵埃の侵入も防止できる。 According to the present invention, since the waterproof breathable porous film is provided in a part of the waterproof case that houses the lens part of the outdoor surveillance video camera in a manner shielded from the outside air, the lens surface and the case can be changed even when the temperature changes. Fogging due to dew condensation does not occur on the inner surface, and dust can be prevented from entering the case from the outside.
【図１】本考案の実施例の防水ケース付き屋外監視用ビ
デオカメラの一部切欠断面図である。FIG. 1 is a partially cutaway sectional view of an outdoor surveillance video camera with a waterproof case according to an embodiment of the present invention.
【図２】従来の防水ケース付き屋外監視用ビデオカメラ
の一部切欠断面図である。FIG. 2 is a partially cutaway sectional view of a conventional outdoor surveillance video camera with a waterproof case.
１ 防水ケース本体部 ２ 多孔質フィルム ３ ビデオカメラ本体部 ４ ビデオカメラレンズ部 1 Waterproof case body 2 Porous film 3 Video camera body 4 Video camera lens
Claims (3)
気より遮断して収納する防水ケースの一部に防水通気性
の多孔質フィルムを設けたことを特徴とする防水ケー
ス。1. A waterproof case, characterized in that a waterproof breathable porous film is provided on a part of a waterproof case for housing a lens part of an outdoor surveillance video camera in a manner shielded from outside air.
チレンの延伸多孔質フィルムである請求項１の防水ケー
ス。2. The waterproof case according to claim 1, wherein the porous film is a stretched porous film of polytetrafluoroethylene.
リウレタン系、ポリエステル系、ポリエーテル系、ポリ
塩化ビニル系、セルロース系のいずれかの多孔質高分子
フィルムである請求項１の防水ケース。3. The waterproof case according to claim 1, wherein the porous film is a porous polymer film of any one of polyolefin, polyurethane, polyester, polyether, polyvinyl chloride and cellulose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8850491U JPH0531468U (en) | 1991-10-02 | 1991-10-02 | Waterproof case for outdoor surveillance video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8850491U JPH0531468U (en) | 1991-10-02 | 1991-10-02 | Waterproof case for outdoor surveillance video camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0531468U true JPH0531468U (en) | 1993-04-23 |
Family
ID=13944659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8850491U Pending JPH0531468U (en) | 1991-10-02 | 1991-10-02 | Waterproof case for outdoor surveillance video camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0531468U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200453078Y1 (en) * | 2009-07-06 | 2011-04-05 | 주식회사 씨앤비텍 | Condensation phenomenon and water inflow prevention device of surveillance camera |
| JP2019186705A (en) * | 2018-04-06 | 2019-10-24 | パナソニックＩｐマネジメント株式会社 | Monitor camera |
| JP2019186915A (en) * | 2019-03-14 | 2019-10-24 | パナソニック株式会社 | Monitor camera and condensation suppression method for monitor camera |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223224U (en) * | 1975-08-05 | 1977-02-18 | ||
| JPH02283542A (en) * | 1989-01-05 | 1990-11-21 | W L Gore & Co Assoc Gmbh | Draft and vent device for case |
-
1991
- 1991-10-02 JP JP8850491U patent/JPH0531468U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223224U (en) * | 1975-08-05 | 1977-02-18 | ||
| JPH02283542A (en) * | 1989-01-05 | 1990-11-21 | W L Gore & Co Assoc Gmbh | Draft and vent device for case |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200453078Y1 (en) * | 2009-07-06 | 2011-04-05 | 주식회사 씨앤비텍 | Condensation phenomenon and water inflow prevention device of surveillance camera |
| JP2019186705A (en) * | 2018-04-06 | 2019-10-24 | パナソニックＩｐマネジメント株式会社 | Monitor camera |
| US10587785B2 (en) | 2018-04-06 | 2020-03-10 | Panasonic I-Pro Sensing Solutions Co., Ltd. | Monitoring camera and condensation suppressing method |
| JP2019186915A (en) * | 2019-03-14 | 2019-10-24 | パナソニック株式会社 | Monitor camera and condensation suppression method for monitor camera |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19980602 |