JP2013172051A - Drip proof structure of case and portable case for thermometry - Google Patents
Drip proof structure of case and portable case for thermometry Download PDFInfo
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- JP2013172051A JP2013172051A JP2012035885A JP2012035885A JP2013172051A JP 2013172051 A JP2013172051 A JP 2013172051A JP 2012035885 A JP2012035885 A JP 2012035885A JP 2012035885 A JP2012035885 A JP 2012035885A JP 2013172051 A JP2013172051 A JP 2013172051A
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- 238000004861 thermometry Methods 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 136
- 238000004891 communication Methods 0.000 claims abstract description 53
- 238000003860 storage Methods 0.000 claims description 76
- 238000005192 partition Methods 0.000 claims description 40
- 230000036544 posture Effects 0.000 claims description 10
- 238000009423 ventilation Methods 0.000 abstract description 16
- 230000035699 permeability Effects 0.000 abstract description 11
- 239000000758 substrate Substances 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000009825 accumulation Methods 0.000 abstract 2
- 238000009833 condensation Methods 0.000 description 18
- 230000005494 condensation Effects 0.000 description 18
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
Description
本発明は、携帯用計測器などにおいて、内部の基板や電源装置を外部から完全に密閉せずに、通気性を確保して格納すると共に、内部の基板や電源装置への防滴性を向上することができるケースの防滴構造と携帯可能な温度計測器用ケースに関する。 The present invention, in a portable measuring instrument or the like, does not completely seal the internal substrate or power supply device from the outside, ensures air permeability and stores, and improves the drip-proof property to the internal substrate or power supply device. The present invention relates to a drip-proof structure for a case and a portable case for a temperature measuring instrument.
通常、計測器等で使用するケースを、上下又は左右等の２つ以上の合成樹脂製や金属製の部品で構成し、凹凸の爪やネジ、蝶番等の結合構造、及び、接着や溶接等の接合構造により組み立てている。この２つ以上のケース部品で組み立てられたケース内に、電子部品等の水に弱い物を収納する場合は、ケースに防水機能や防滴機能が必要となる。 Usually, the case used for measuring instruments, etc. is composed of two or more synthetic resin or metal parts such as top and bottom or left and right, coupling structure such as uneven nails, screws, hinges, etc., and adhesion and welding, etc. It is assembled by the joint structure. When a case that is assembled with two or more case parts is to contain an electronic component or the like that is sensitive to water, the case needs to have a waterproof function or a drip-proof function.
しかしながら、従来技術の防水、又は防滴構造の一つであるゴムパッキンを使用する場合には、汎用品や注文生産品の区別によらず、部品点数の増加と工数の増加となり、コストアップの要因となる。また、合成樹脂系の充填剤によりシールする場合には、ケースの再開封の作業性が悪くなり、また、ケース全体を合成樹脂系材料で包み込んで完全密封してしまう場合には再開封が困難となる。 However, when using a rubber packing that is one of the waterproof or drip-proof structures of the prior art, the number of parts and the number of man-hours will increase, regardless of whether they are general-purpose products or custom-made products. It becomes a factor. Also, when sealing with a synthetic resin-based filler, the workability of re-sealing the case becomes worse, and when the entire case is wrapped in a synthetic resin-based material and completely sealed, it is difficult to re-seal It becomes.
また、ケースの材料の劣化や耐久性の問題からケースの一部が変形したり、携帯時や測定時に外力が加わって変形したりして、ケース部品の接合面に歪みが生じて、シール機能及び水密性が損なわれる場合も生じ、更には、水分が防水、又は防滴エリアに侵入する場合も生じる。 Also, part of the case may be deformed due to deterioration of the case material and durability problems, or deformed due to external force applied when carrying or measuring, causing distortion on the joint surface of the case parts, and sealing function In addition, water tightness may be impaired, and further, moisture may enter a waterproof or drip-proof area.
そして、密封により防水、又は防滴機能を確保する場合には、一旦浸水を許すと、逆に侵入した水分の排出が困難になり、浸入した水分によるショートや材料特性の変化等が生じる等のケース内部の機器類のトラブルを発生する。 And in order to ensure waterproofing or drip-proof function by sealing, once water immersion is allowed, it will be difficult to drain the intruded moisture, resulting in short circuit due to the intruding moisture, changes in material properties, etc. Troubles with equipment inside the case.
一方、携帯用の計測器等の場合には、機器類を収納している格納室と外部との間に通気性を要求される場合もある。例えば、保管場所と使用場所によって温度変化が激しく、計測器を温かい室内から、寒い室外に持ち出して温度等の計測をするような時には、室外への移動に伴ってケースが冷却され内部の気圧が減少し負圧となる。また、使用時に内部で発熱するような場合には、内部空気の熱膨張により内部圧力が高まり、内部空気が外部に漏れ易く、漏れた場合には、温度低下時に外部に対して内部が負圧になる。 On the other hand, in the case of a portable measuring instrument or the like, there is a case where air permeability is required between the storage room storing the devices and the outside. For example, when the temperature changes drastically depending on the storage location and usage location, and the temperature is measured by taking the measuring instrument from a warm room to a cold room, the case is cooled and the internal atmospheric pressure is reduced as it moves outside. Decreases to negative pressure. Also, when heat is generated internally during use, the internal pressure increases due to the thermal expansion of the internal air, and the internal air easily leaks to the outside. become.
そのため、外部の高湿の空気やケースに付着した水分が、ケースの変形などにより生じた僅かな隙間から内部に侵入し、この水分が内部の温度低下により内部で結露が生じる等の問題が生じる。しかし、水滴の混入後や結露が生じた後に、通気性を確保している場合には、暖機や乾燥作業により、ケース内の水分を蒸発させて通気により外部に排出させることが可能となる。そのため、外部との通気性が重要となる。 As a result, external high-humidity air and moisture adhering to the case enter the inside through a slight gap created by deformation of the case, and this moisture causes problems such as internal condensation due to a decrease in internal temperature. . However, when air permeability is ensured after mixing of water droplets or after condensation has formed, it is possible to evaporate the moisture in the case and discharge it to the outside by ventilation by warming up or drying operations. . Therefore, air permeability from the outside is important.
上記の課題に対して、本発明者は、外部と防滴室との間に、水滴保持室を設けると共に、その水滴保持室と外部との外部仕切り壁に排水孔を、水滴保持室と防滴室との内部仕切り壁に通気孔をそれぞれ設けた装置（例えば、特許文献１参照）を提案した。 In response to the above problems, the present inventor has provided a water droplet holding chamber between the outside and the drip-proof chamber, and provided a drain hole in the external partition wall between the water droplet holding chamber and the outside, and the water droplet holding chamber and the water-proof chamber. The apparatus (for example, refer patent document 1) which provided the vent hole in the internal partition wall with a droplet chamber was proposed.
この装置は、防滴室の通気性を確保すると共に、外部から進入した水を水滴保持室に溜めて、又は排水孔から排出することにより、防滴室への水の進入を防ぐことができる。しかし、水滴保持室に溜まった水が、防滴室へ進入し、防滴室の内部に保持した電子部品などの水に弱い物が故障する可能性があるため、より高い防滴性が必要であった。 This device can prevent the ingress of water into the drip-proof chamber by ensuring the breathability of the drip-proof chamber and by accumulating water entering from the outside in the water drop holding chamber or discharging it from the drain hole. . However, since water accumulated in the water droplet holding chamber enters the drip-proof chamber and water-sensitive items such as electronic parts held inside the drip-proof chamber may break down, higher drip-proofing is required. Met.
本発明は、上記の問題を鑑みてなされたものであり、その目的は、形状の工夫により、部品点数の増加を伴わずに外部との通気性を確保して内部における結露を防止でき、従来よりも防滴性を向上することができるケースの防滴構造と携帯可能な温度計測器用ケースを提供することである。 The present invention has been made in view of the above-mentioned problems, and the purpose of the invention is to devise the shape, ensure air permeability outside without increasing the number of parts, and prevent dew condensation inside. A drip-proof structure of a case that can improve drip-proof performance and a portable case for a temperature measuring instrument.
上記の目的を解決するための本発明のケースの防滴構造は、防滴室とケース外部への通気路に設けた排出室に、前記通気路の前記ケース外部への開口部である外部通気孔とは異なる排水孔を備えたケースの防滴構造において、前記防滴室と前記排出室との間に、前記防滴室と連通する第１連通孔を有した第１仕切り壁と、前記排出室に連通する第２連通孔を有した第２仕切り壁とに仕切られた貯留室を備え、前記貯留室に、水を排出するときに開口する開閉排水孔を設けて構成される。 The drip-proof structure of the case of the present invention for solving the above-mentioned object is provided in an external passage that is an opening portion of the air passage to the outside of the case in a discharge chamber provided in the air passage to the outside of the case. In the drip-proof structure of the case having a drain hole different from the air hole, a first partition wall having a first communication hole communicating with the drip-proof chamber between the drip-proof chamber and the discharge chamber, A storage chamber partitioned by a second partition wall having a second communication hole communicating with the discharge chamber is provided, and an open / close drain hole that opens when water is discharged is provided in the storage chamber.
この構成によれば、防滴室とケース外部とは通気路によって、通気性を確保することで、ケース内部の結露を防止し、一方で外部からの水の進入を排出室で一旦防ぎ、仮に排出室で水の進入を防ぐことができなくても、貯留室で水の進入を防ぐことができる。これにより、外部との通気性を確保して内部における結露を防止するケースの防滴構造の通気性を損なわずに、外部からの防水性を向上することができる。 According to this configuration, the drip-proof chamber and the outside of the case are ventilated by a ventilation path to prevent condensation inside the case, while preventing water from entering from the outside once in the discharge chamber. Even if water cannot enter the discharge chamber, water can be prevented from entering the storage chamber. Thereby, the waterproofness from the outside can be improved without impairing the breathability of the drip-proof structure of the case that ensures the breathability with the outside and prevents condensation inside.
また、ここでいう開閉排水孔とは、水の排出路を蓋、栓、又は弁などにより開閉可能に構成した排水孔のことであり、その開閉排水孔が、貯留室に溜まった水を排出するときに開口するので、通常の状態では外部から開閉排水孔を介して水が進入せず、そして、貯留室に水が溜まった場合は、その溜まった水を外部へ排出することができる。 In addition, the open / close drainage hole here is a drainage hole constructed so that the water discharge path can be opened and closed by a lid, a stopper, or a valve. In the normal state, water does not enter from the outside through the open / close drainage hole, and when water accumulates in the storage chamber, the accumulated water can be discharged to the outside.
また、上記のケースの防滴構造において、前記貯留室を介して前記通気路が屈曲するように、前記防滴室、前記貯留室、及び前記排出室を配置すると、水の進入路になり得る通気路が貯留室内で屈曲することで、貯留室から防滴室への水の進入を妨げることができ、より防滴室の防水性を向上することができる。 Further, in the drip-proof structure of the case described above, when the drip-proof chamber, the storage chamber, and the discharge chamber are arranged so that the air passage is bent through the storage chamber, it can be a water entrance path. Since the air passage is bent in the storage chamber, water can be prevented from entering the drip-proof chamber from the storage chamber, and the waterproof property of the drip-proof chamber can be further improved.
加えて、上記のケースの防滴構造において、少なくとも前記防滴室の一部を覆い、前記ケース外部から外すことのできる蓋に、前記開閉排水孔を塞ぐ閉止栓を備えると、開閉排水孔の栓を外部から外すことのできる蓋に設けているため、ケースを分解しなくとも、貯留室に溜まった水を容易に排出することができる。 In addition, in the drip-proof structure of the case described above, if the lid that covers at least a part of the drip-proof chamber and that can be removed from the outside of the case is provided with a closing plug that closes the open / close drain hole, Since the stopper is provided on the lid that can be removed from the outside, the water accumulated in the storage chamber can be easily discharged without disassembling the case.
その上、上記のケースの防滴構造において、前記ケースの使用時、又は前記ケースの保管時の少なくともどちらかの姿勢のときに、前記外部通気孔を、前記排水孔と前記開閉排水孔よりも高い位置に、且つ、前記第１連通孔と前記第２連通孔とを、前記排水孔と前記開閉排水孔よりも高い位置に配置する。 In addition, in the drip-proof structure of the above case, when the case is used or at least one of the postures when the case is stored, the external vent hole is more than the drain hole and the open / close drain hole. The first communication hole and the second communication hole are arranged at a higher position than the drain hole and the open / close drain hole.
この構成によれば、ケースの使用時や保管時の姿勢では、外部通気孔より進入した水滴を、外部通気孔よりも低い位置にある排水孔から外部へ排出することができ、且つ、貯留室と排出室とに溜めることができる水量を多くすることができる。これによれば、ケースの使用時や保管時の姿勢での防滴室の防滴性を向上することができる。 According to this configuration, when the case is used or stored, water droplets that have entered from the external vent hole can be discharged to the outside through the drain hole located at a position lower than the external vent hole, and the storage chamber. The amount of water that can be stored in the discharge chamber can be increased. According to this, the drip-proof property of the drip-proof chamber can be improved when the case is used or stored.
さらに、上記のケースの防滴構造において、前記第１仕切壁の壁面から前記貯留室内部に突出した位置に前記第１連通孔の前記貯留室側の開口部を設け、前記第２仕切壁の壁面から前記排水室内部に突出した位置に前記第２連通孔の前記排水室側の開口部を設け、前記外部通気孔の開口の大きさを、前記排水孔と前記開閉排水孔の開口の大きさよりも小さく形成し、前記第１連通孔の貯留室側の開口部の開口の大きさと前記第２連通孔の排水室側の開口部の開口の大きさとを、前記排水孔と前記開閉排水孔の開口の大きさよりも小さく形成する。 Furthermore, in the drip-proof structure of the above case, an opening on the storage chamber side of the first communication hole is provided at a position protruding from the wall surface of the first partition wall to the storage chamber, and the second partition wall An opening on the drainage chamber side of the second communication hole is provided at a position protruding from the wall surface to the interior of the drainage chamber, and the size of the opening of the external vent hole is set to the size of the opening of the drainage hole and the opening / closing drainage hole. The drainage hole and the open / close drainage hole are formed so that the size of the opening on the storage chamber side of the first communication hole and the size of the opening on the drainage chamber side of the second communication hole are formed. It is formed smaller than the size of the opening.
この構成によれば、各連通孔の開口部を各仕切り壁よりも突出した位置に設けることで、ケースの姿勢が変化しても、各連通孔の開口部が溜まった水面よりも高くなるので、各連通孔を介して防滴室へ水が進入することを防ぐことができる。 According to this configuration, by providing the opening of each communication hole at a position protruding from each partition wall, the opening of each communication hole becomes higher than the accumulated water surface even if the posture of the case changes. In addition, it is possible to prevent water from entering the drip-proof chamber through each communication hole.
また、水が外部通気孔から排出室に進入した場合は、排水孔の開口のよりも外部通気孔の開口の大きさが小さいため、進入する水量よりも排出される水量の方が多くなるので、貯留室への水の進入がなく、防滴室への水の進入を防ぐことができる。一方で、万が一、水が排水孔から排出室に進入した場合は、進入する水量が排出される水量よりも多くなり、貯留室へ水が進入するが、外部通気孔から水を排出すると同時に、貯留室に水を溜めることができるので、防滴室への水の進入を防ぐことができ、さらに貯留室に溜まった水は後から開閉排水孔より外部へ排出することができる。 In addition, when water enters the discharge chamber from the external vent hole, the size of the external vent hole is smaller than that of the drain hole, so the amount of water discharged is greater than the amount of water entering. There is no entry of water into the storage chamber, and entry of water into the drip-proof chamber can be prevented. On the other hand, if water enters the discharge chamber from the drainage hole, the amount of water entering is larger than the amount of water discharged, and water enters the storage chamber, but at the same time as discharging water from the external vent, Since water can be stored in the storage chamber, water can be prevented from entering the drip-proof chamber, and the water stored in the storage chamber can be discharged to the outside through the open / close drain hole later.
上記の目的を解決するための本発明の携帯可能な温度計測器用ケースは、上記に記載のケースの防滴構造を備えて構成される。 In order to solve the above-mentioned object, a portable case for a temperature measuring instrument of the present invention is configured to include the above-described case drip-proof structure.
この構成によれば、温度計測器用ケースに通気性を確保することができるので、携帯可能で使用状況が変化して、ケースの内部と外部の温度に変化がある場合、及びケース内部の計測機器が発熱する場合にケース内部が負圧となって、外部から水が進入し、結露しても、その結露により発生した水滴を外部へ排出することができる。 According to this configuration, air permeability can be ensured in the case for the temperature measuring device, so that it can be carried and the usage situation changes, and there is a change in the temperature inside and outside the case, and the measuring device inside the case When heat is generated, the inside of the case becomes negative pressure, and even if water enters from outside and condensation occurs, water droplets generated by the condensation can be discharged to the outside.
また、温度計測器用ケースの防滴性を向上させても、ゴムパッキンやケースの嵌合部にシールを用いていないので、部品点数と工数が減少して、製造コストを低減することができる。加えて、温度計測器用ケースを容易に分解することができ、メンテナンス性も向上することができる。 Even if the drip-proof property of the temperature measuring instrument case is improved, since the seal is not used for the rubber packing or the fitting portion of the case, the number of parts and man-hours can be reduced, and the manufacturing cost can be reduced. In addition, the temperature measuring instrument case can be easily disassembled, and the maintainability can be improved.
また、上記の携帯可能な温度計測器用ケースは、前記蓋を、前記防滴室に設けた温度計測器の電源装置を保持する電源装置用カバーで形成すると、外部から容易に取り外すことができる電源装置用カバーに閉止栓を設けているので、仮に貯留室に水が溜まった場合に、いちいち温度計測器用ケースを分解せずに、その電源装置用カバーを外すことで、直ぐに貯留室に溜まった水を排出することができる。 The portable temperature measuring instrument case can be easily removed from the outside by forming the lid with a power supply cover for holding the power supply of the temperature measuring instrument provided in the drip-proof chamber. Since the device cover is provided with a stopper plug, if water accumulates in the storage chamber, it is immediately collected in the storage chamber by removing the cover for the power supply device without disassembling the temperature measuring instrument case. Water can be discharged.
本発明によれば、形状の工夫により、部品点数の増加を伴わずに外部との通気性を確保して内部における結露を防止でき、従来よりも防滴性を向上することができる。 According to the present invention, by contriving the shape, air permeability to the outside can be ensured without increasing the number of parts, and condensation inside can be prevented, and the drip-proof property can be improved as compared with the prior art.
以下、本発明に係る実施の形態のケースの防滴構造と、携帯可能な温度計測器用ケースについて、図面を参照しながら説明する。ここで、図面の左右方向をｘ方向、上下方向をｙ方向、及び紙面に垂直な方向をｚ方向とする。なお、図面に関しては、構成が分かり易いように寸法を変化させており、各部材、各部品の板厚や幅や長さなどの比率も必ずしも実際に製造するものの比率とは一致させていない。 Hereinafter, a drip-proof structure of a case according to an embodiment of the present invention and a portable case for a temperature measuring device will be described with reference to the drawings. Here, the horizontal direction in the drawing is the x direction, the vertical direction is the y direction, and the direction perpendicular to the paper surface is the z direction. Note that the dimensions of the drawings are changed so that the configuration can be easily understood, and the ratios of the thicknesses, widths, lengths, and the like of the respective members and parts do not necessarily match the ratios of actually manufactured parts.
図１に示すように、本発明の実施の形態のケースの防滴構造１０は、ケース１と防滴室用カバー（蓋）２とからなり、外部仕切壁３、４、５、６、第１仕切壁７、及び第２仕切壁８によりケース１を、防滴室１１、貯留室１２、及び排出室１３とに区画する。なお、図１はケース１の使用時、又は保管時の姿勢の状態を示しており、外部仕切壁３を上面、及び外部仕切壁５を下面とする。 As shown in FIG. 1, a drip-proof structure 10 for a case according to an embodiment of the present invention includes a case 1 and a drip-proof chamber cover (lid) 2, and includes external partition walls 3, 4, 5, 6, The case 1 is partitioned into a drip-proof chamber 11, a storage chamber 12, and a discharge chamber 13 by the one partition wall 7 and the second partition wall 8. FIG. 1 shows the state of the case 1 when the case 1 is used or stored. The external partition wall 3 is an upper surface and the external partition wall 5 is a lower surface.
防滴室１１は、防滴室用カバー２により、外部仕切壁５に設けた開口部１１ａを密閉され、内部に、電子部品を用いた主基板や電源装置などの水に弱い部品を収納する。その防滴室用カバー２を、防滴室１１の内部のものを容易に交換することが可能なように、ケース１へ脱着可能に形成する。この防滴室用カバー２を防滴室１１に装着したときは、ケース１との嵌合部分より防滴室１１へ水が進入しないように、全周リブ２ａを設けるとよい。 The drip-proof chamber 11 has an opening 11 a provided in the external partition wall 5 sealed by the drip-proof chamber cover 2, and houses water-sensitive components such as a main board using electronic components and a power supply device. . The drip-proof chamber cover 2 is formed to be detachable from the case 1 so that the inside of the drip-proof chamber 11 can be easily replaced. When this drip-proof chamber cover 2 is attached to the drip-proof chamber 11, it is advisable to provide the entire circumferential rib 2a so that water does not enter the drip-proof chamber 11 from the fitting portion with the case 1.
貯留室１２は外部から侵入した水滴、又は内部の結露により発生した水滴を防滴室１１へ侵入させないように貯留し、排水室１２は外部から侵入した水滴、又は内部の結露により発生した水滴を排出するように構成する。 The storage chamber 12 stores water droplets entering from the outside or water droplets generated by internal condensation so as not to enter the drip-proof chamber 11, and the drainage chamber 12 stores water droplets entering from the outside or water droplets generated by internal condensation. Configure to drain.
その構成として、第１仕切壁７に第１連通孔１４を設けて、防滴室１１と貯留室１２とを連通し、第２仕切壁８に第２連通孔１５を設けて、貯留室１２と排出室１３とを連通する。また、外部仕切壁４に外部通気孔１６を設けて、排出室１３の内部とケース１の外部とを連通する。これにより、防滴室１１からケース１の外部への通気性を確保するように
、第１連通孔１４と第２連通孔１５と外部通気孔１６とからなる通気路１７を形成することができる。
As a configuration thereof, the first communication hole 14 is provided in the first partition wall 7, the drip-proof chamber 11 and the storage chamber 12 are connected, and the second communication hole 15 is provided in the second partition wall 8. And the discharge chamber 13 communicate with each other. In addition, an external ventilation hole 16 is provided in the external partition wall 4 so that the inside of the discharge chamber 13 communicates with the outside of the case 1. Thus, the air passage 17 including the first communication hole 14, the second communication hole 15, and the external air hole 16 can be formed so as to ensure the air permeability from the drip-proof chamber 11 to the outside of the case 1. .
加えて、排出室１３の外部仕切壁５に排水孔１８を設け、貯留室１２の外部仕切壁５に開閉排水孔１９を設ける。さらに、防滴室用カバー２に開閉排水孔１９の栓となる閉止栓２０を設ける。 In addition, a drain hole 18 is provided in the external partition wall 5 of the discharge chamber 13, and an open / close drain hole 19 is provided in the external partition wall 5 of the storage chamber 12. Further, the drip-proof chamber cover 2 is provided with a closing plug 20 that serves as a plug for the open / close drain hole 19.
図２に示すように、第１連通孔１４の貯留室１２側の開口部１４ａを、貯留室１２から防滴室１１へ容易に水が進入しないように、第１仕切壁７より貯留室１２側へ突出する位置ｘ１に設ける。この構成によれば、開口部１４ａが貯留室１２の内壁面から離れて位置するので、ケース１の姿勢が変化しても、貯留室１２に溜まった水が防滴室１１へ進入しにくくすることができる。 As shown in FIG. 2, the storage chamber 12 from the first partition wall 7 prevents the water from easily entering the drip-proof chamber 11 from the storage chamber 12 through the opening 14 a on the storage chamber 12 side of the first communication hole 14. It is provided at a position x1 protruding to the side. According to this configuration, since the opening 14 a is located away from the inner wall surface of the storage chamber 12, even if the posture of the case 1 changes, the water accumulated in the storage chamber 12 does not easily enter the drip-proof chamber 11. be able to.
また、防滴室１１側の開口部１４ｂを、防滴室１１から貯留室１２へ、防滴室１１の空気が外部へ流通し易くなるように、又、結露などで生じた水滴を流出し易くなるように、面取り加工して形成する。加えて、この第１連通孔１４の開口部１４ａの大きさは、例えば、貯留室１２に水が溜まっても貯留室１２から防滴室１１へ水が進入し難い大きさ、つまり、水の表面張力が十分に働き防滴室１１内部の圧力によって水が防滴室１１へ進入し難い大きさｒ１が好ましい。 Further, the opening 14b on the side of the drip-proof chamber 11 flows from the drip-proof chamber 11 to the storage chamber 12 so that the air in the drip-proof chamber 11 can easily flow to the outside, and water droplets generated by condensation or the like flow out. It is formed by chamfering so as to be easy. In addition, the size of the opening 14a of the first communication hole 14 is, for example, such a size that it is difficult for water to enter the drip-proof chamber 11 from the storage chamber 12 even if water accumulates in the storage chamber 12. The size r1 is preferable because the surface tension works sufficiently and water does not easily enter the drip-proof chamber 11 due to the pressure inside the drip-proof chamber 11.
第２連通孔１５も同様に、防滴室１３側の開口部１５ａを、第２仕切壁８より排出室１３側へ突出する位置ｘ２に設け、貯留室１２側の開口部１５ｂを、面取り加工して形成する。この第２連通孔１５の開口部１５ａも前述の開口部１４ａと略同様の大きさｒ２に形成する。 Similarly, the second communication hole 15 is provided with an opening 15a on the drip-proof chamber 13 side at a position x2 protruding from the second partition wall 8 to the discharge chamber 13 side, and the opening 15b on the storage chamber 12 side is chamfered. To form. The opening 15a of the second communication hole 15 is also formed to have a size r2 that is substantially the same as the opening 14a described above.
上記の第１連通孔１４の開口位置ｙ１と第２連通孔１５の開口位置ｙ２とは、ｙｚ平面で一致しない（同一平面内で一致しない）位置が、つまり第１連通孔１４と第２連通孔１５とが直列にならない位置がよく、例えば、防滴室１１と貯留室１２と排出室１３との並びを、通気路１７が屈曲するように配置するとよりよい。 The opening position y1 of the first communication hole 14 and the opening position y2 of the second communication hole 15 do not coincide with each other on the yz plane (does not coincide within the same plane), that is, the first communication hole 14 and the second communication hole. For example, it is better to arrange the drip-proof chamber 11, the storage chamber 12, and the discharge chamber 13 so that the air passage 17 is bent.
外部通気孔１６を、外部仕切壁４に、また、第２連通孔１５とｙｚ平面で交わらない位置に設ける。この外部通気孔１６の開口位置は、排水孔１８と開閉排水孔１９の位置よりも、ケース１の使用時、又は保管時の少なくともどちらかの姿勢で高くなる位置に、好ましくは、外部仕切壁３寄りの位置ｙ３に設ける。この外部通気孔１６の外部側の開口部１６ａと排出室側の開口部１６ｂも前述と同様に形成する。 The external ventilation holes 16 are provided in the external partition wall 4 and at positions where they do not intersect with the second communication holes 15 on the yz plane. The opening position of the external vent hole 16 is preferably higher than the position of the drain hole 18 and the open / close drain hole 19 in a position that is higher in at least one of the postures when the case 1 is used or stored. It is provided at a position y3 closer to 3. The external opening 16a and the discharge chamber 16b are also formed in the same manner as described above.
排水孔１８を外部通気孔１６よりも低い位置ｙ４で、ケース１の使用時、又は保管時の姿勢で下面となる外部仕切壁５に設ける。この排水孔１８の外部側の開口部１８ａの大きさｒ４は、外部通気孔１６の開口部１６ａの大きさｒ３よりも大きく形成する。排出室１３側の開口部１８ｂを面取り加工して形成する。 The drain hole 18 is provided at the position y4 lower than the external vent hole 16 in the external partition wall 5 which becomes the lower surface in the posture when the case 1 is used or stored. The size r4 of the opening 18a on the outside of the drain hole 18 is formed larger than the size r3 of the opening 16a of the external vent hole 16. The opening 18b on the discharge chamber 13 side is formed by chamfering.
上記のように、外部通気孔１６と排水孔１８を構成すると、ケース１の通気性を確保すると共に、ケース１の使用時、又は保管時の姿勢では、外部から侵入した水滴、又は内部の結露により発生した水滴を、常に排水孔１８から外部へと排出することができる。 As described above, when the external vent hole 16 and the drain hole 18 are configured, the air permeability of the case 1 is ensured, and when the case 1 is used or stored, the water droplets entering from the outside or the internal dew condensation are formed. The water droplets generated by the above can always be discharged from the drain hole 18 to the outside.
開閉排水孔１９も排水孔１８と同様に、外部通気孔１６よりも低い位置ｙ４で、ケース１の使用時、又は保管時の姿勢で下面となる外部仕切壁５に設け、外部側の開口部１９ａの大きさｒ５を、外部通気孔１６の開口部１６ａの大きさｒ３よりも大きく形成し、貯留室１２側の開口部１９ｂは面取り加工して形成する。 Similarly to the drain hole 18, the open / close drain hole 19 is provided in the external partition wall 5 which is the lower surface in the position of use of the case 1 or in the storage state at a position y 4 lower than the external vent hole 16. The size r5 of 19a is formed larger than the size r3 of the opening 16a of the external vent hole 16, and the opening 19b on the storage chamber 12 side is formed by chamfering.
防滴室用カバー２に設けた閉止栓２０は、ケース１に防滴室用カバー２を装着したときに、開閉排水孔１９を遮蔽することができればよく、その構成は限定しない。 The stopper plug 20 provided in the drip-proof chamber cover 2 is not limited as long as it can shield the open / close drain hole 19 when the drip-proof chamber cover 2 is attached to the case 1.
上記のように、開閉排水孔１９と閉止栓２０を構成すると、開閉排水孔１９の開閉を閉止栓２０で行うことができる。これにより、ケース１の使用時、又は保管時に、貯留室１２を外部と直接連通させずに、外部から直接貯留室１２へ水が進入することを防止し、また、貯留室１２に溜まった水を防滴室１１へ進入する前に排出することができる。結果、外部から侵入する水を排水室１３で排出仕切れずに、従来であれば、防滴室１１へ侵入する水を貯留し、排出することができので、防滴室１１の防滴性を向上することができる。 If the open / close drain hole 19 and the closing plug 20 are configured as described above, the open / close drain hole 19 can be opened and closed by the closing plug 20. This prevents water from directly entering the storage chamber 12 from the outside without directly connecting the storage chamber 12 to the outside when the case 1 is used or stored, and the water accumulated in the storage chamber 12. Can be discharged before entering the drip-proof chamber 11. As a result, it is possible to store and discharge water entering the drip-proof chamber 11 without draining the water entering from the outside in the drain chamber 13, so that the drip-proof property of the drip-proof chamber 11 can be increased. Can be improved.
上記の防滴構造１０によれば、防滴室１１は通気路１７を介してケース１の外部と連通しており、通気性を確保し、防滴室１１内部の空気を外部へと流通させることができ、且つ、外部から進入した水滴、又は内部の結露で発生した水滴を外部へ排出することができるので、防滴室１１内の水に弱いものを保護することができる。 According to the above-described drip-proof structure 10, the drip-proof chamber 11 communicates with the outside of the case 1 through the ventilation path 17, ensures air permeability, and distributes the air inside the drip-proof chamber 11 to the outside. In addition, since water droplets that have entered from the outside or water droplets generated by internal condensation can be discharged to the outside, those that are sensitive to water in the drip-proof chamber 11 can be protected.
また、仮に、外部から侵入する水の量が多くても、防滴室１１と排出室１３との間に設けた貯留室１２で、水を溜めることができるので、従来に比べて防滴室１１の防滴性が向上する。加えて、貯留室１２に溜まった水を防滴室用カバー２を外すだけで、外部へと排出することができ、ケース１を分解する必要がない。 Further, even if the amount of water entering from the outside is large, water can be stored in the storage chamber 12 provided between the drip-proof chamber 11 and the discharge chamber 13, so that the drip-proof chamber is more than conventional. The drip-proof property of 11 is improved. In addition, the water accumulated in the storage chamber 12 can be discharged to the outside simply by removing the drip-proof chamber cover 2, and there is no need to disassemble the case 1.
次に、上記の防滴構造１０のケース１内部に進入した水の排出方法について説明する。図３に示すように、ケース１の使用時、又は保管時の姿勢の状態（外部仕切壁３が上面、外部仕切壁５が下面）では、排水孔１８がｙ方向の下方に開口するので、排出室１３に外部から侵入した水滴、又は内部で結露した水滴である水ｗ１を、重力の作用によって、排水孔１８から外部へと排出することができる。 Next, a method for discharging water that has entered the inside of the case 1 of the drip-proof structure 10 will be described. As shown in FIG. 3, when the case 1 is in use or in the state of storage (the external partition wall 3 is the top surface and the external partition wall 5 is the bottom surface), the drain hole 18 opens downward in the y direction. Water w1 that is a water droplet that has entered the discharge chamber 13 from the outside or a water droplet that has condensed inside can be discharged from the drain hole 18 to the outside by the action of gravity.
また、水が外部通気孔１６から排出室１３に進入した場合は、排水孔１３の開口のよりも外部通気孔１６の開口の大きさが小さいため、進入する水量よりも排出される水量の方が多くなるので、貯留室１２への水の進入がなく、防滴室１１への水の進入を防ぐことができる。 Further, when water enters the discharge chamber 13 from the external vent 16, the size of the drained water 13 is smaller than the size of the drained vent 13, so that the amount of water discharged is larger than the amount of water entering. Therefore, water does not enter the storage chamber 12 and water can be prevented from entering the drip-proof chamber 11.
排出室１３では、上記のように、常に水ｗ１は、排水孔１８から外部へと排出することができるが、一方、排出室１３から第２連通孔１５を介して貯留室１２へ侵入し、又は貯留室１２の内部で結露した水滴である水ｗ２は、開閉排水孔１９が閉止栓２０により閉止しているため、貯留室１２の内部に溜まる。この貯留室１２の内部に溜まった水ｗ２を、図４に示すように、閉止栓２０を開閉排水孔１９から抜くことで、開閉排水孔１９から外部へと排出することができる。 In the discharge chamber 13, as described above, the water w1 can always be discharged from the drain hole 18 to the outside. On the other hand, the water w1 enters the storage chamber 12 from the discharge chamber 13 through the second communication hole 15, Alternatively, the water w <b> 2, which is a water droplet condensed in the storage chamber 12, accumulates in the storage chamber 12 because the open / close drain hole 19 is closed by the closing plug 20. As shown in FIG. 4, the water w <b> 2 accumulated inside the storage chamber 12 can be discharged to the outside through the open / close drainage hole 19 by removing the closing plug 20 from the open / close drainage hole 19.
貯留室１２では、排出室１３のように、常時水ｗ２を外部に排出することはできないが、第１連通孔１４の貯留室１２側の開口部１４ａまで、溜まらなければ防滴室１１へと水ｗ２は進入することがない。また、前述したように、第１連通孔１４の開口部１４ａは、ある程度の水圧がかからなければ水が進入しないような大きさに形成されていることで、防滴室１１への水の進入を防ぐことができる。 In the storage chamber 12, the water w <b> 2 cannot always be discharged to the outside as in the discharge chamber 13, but if the water does not collect up to the opening 14 a on the storage chamber 12 side of the first communication hole 14, the drip-proof chamber 11 is reached. Water w2 does not enter. In addition, as described above, the opening 14a of the first communication hole 14 is formed in such a size that water does not enter unless a certain level of water pressure is applied. Can prevent entry.
次に、図５に示すように、ケース１の使用中などで、外部通気孔１６がｙ方向の上方に開口した場合について説明する。外部通気孔１６から進入する水滴、又は排出室１３の結露で発生した水滴である水ｗ１は、第２仕切壁８を底とした排出室１３に溜まる。排水孔１８の高さまで溜まると、排水孔１８から外部へと排出することができる。 Next, as shown in FIG. 5, a case where the external ventilation hole 16 opens upward in the y direction when the case 1 is being used will be described. Water w1 that is water droplets entering from the external vent 16 or water droplets generated by condensation in the discharge chamber 13 is accumulated in the discharge chamber 13 with the second partition wall 8 as a bottom. When the water reaches the height of the drain hole 18, it can be discharged from the drain hole 18 to the outside.
このとき、排水孔１８の開口部１８ａと１８ｂの大きさが外部通気孔１６の開口部１６
ａと１６ｂよりも大きいこと、また、第２連通孔１５の開口部１５ａの位置が、排水孔１８よりも高い位置にあることから、水ｗ１は貯留室１２へ進入する可能性が低い。仮に、貯留室１２へ水ｗ１が進入しても、第１連通孔１４の開口部１４ａの位置が高い位置にあるため、直ぐに防滴室１１へ流れ込むことがなく、水ｗ２として、貯留室１２に溜まる。貯留室１２から防滴室１１へ水ｗ２が進入する前に、ケース１を通常の状態に戻して、閉止栓２０を開閉排水孔１９から抜けば、の水ｗ２を外部へ排出することができる。
At this time, the sizes of the openings 18 a and 18 b of the drain hole 18 are the same as the size of the opening 16 of the external vent hole 16.
Since it is larger than a and 16b, and the position of the opening 15a of the second communication hole 15 is higher than the drain hole 18, the possibility that the water w1 enters the storage chamber 12 is low. Even if water w1 enters the storage chamber 12, the position of the opening 14a of the first communication hole 14 is at a high position, so that the water does not immediately flow into the drip-proof chamber 11 and is stored as water w2. Accumulate. Before the water w2 enters the drip-proof chamber 11 from the storage chamber 12, if the case 1 is returned to the normal state and the stopper plug 20 is removed from the open / close drain hole 19, the water w2 can be discharged to the outside. .
次に、図６に示すように、排水孔１８がｙ方向の上方に開口した場合について説明する。排水孔１８から進入した水は、外部仕切壁３を底にした排出室１３に水ｗ１として溜まるが、ある程度溜まると、外部通気孔１６から外部へと排出することができる。しかし、排水孔１８から進入する水量が外部通気孔１６からは排出する水量よりも多いため、水は徐々に水嵩を増し、第２連通孔１５から貯留室１２へと進入する可能性がある。 Next, as shown in FIG. 6, the case where the drain hole 18 is opened upward in the y direction will be described. The water that has entered from the drain hole 18 is accumulated as water w1 in the discharge chamber 13 with the external partition wall 3 at the bottom, but can be discharged to the outside through the external vent hole 16 if it accumulates to some extent. However, since the amount of water entering from the drain hole 18 is larger than the amount of water discharged from the external vent hole 16, the water gradually increases in volume and may enter the storage chamber 12 from the second communication hole 15.
前述したように、貯留室１２に溜まった水ｗ２が防滴室１１へ進入するにはある程度の時間がかかり、その間に貯留室１２に溜まった水ｗ２を外部へと排出すればよい。貯留室１２に溜まった水ｗ２は、閉止栓２０を開閉排水孔１９から抜くことで外部へと排出することができるが、図７に示すように、外部通気孔１６から排出してもよい。 As described above, it takes a certain amount of time for the water w2 collected in the storage chamber 12 to enter the drip-proof chamber 11, and the water w2 collected in the storage chamber 12 during that time may be discharged to the outside. The water w2 collected in the storage chamber 12 can be discharged to the outside by removing the stopper plug 20 from the open / close drain hole 19, but may be discharged from the external vent hole 16 as shown in FIG.
このように、ケース１の防滴構造１０は、ケース１の姿勢が様々に変化しても、防滴室１１へ水が進入することを防ぐことができるので、防滴室１１内に収納した水に弱い電子部品などを、水から保護することができ、その故障を防ぐことができる。 Thus, the drip-proof structure 10 of the case 1 can be stored in the drip-proof chamber 11 because water can be prevented from entering the drip-proof chamber 11 even if the posture of the case 1 changes variously. Electronic components that are vulnerable to water can be protected from water, and the failure can be prevented.
次に、上記の防滴構造１０を備えた、携帯可能な温度計測器用ケース３０について、図８〜１２を参照しながら説明する。図８の側面図に示すように、温度計測器用ケース３０は、図９及び図１０に示すケース上側部１ａと図１１に示すケース下側部１ｂとを凹凸により嵌合して、水密性を高めるように構成したケース１と、図１２に示す電源装置用カバー（防滴室用カバー）２を嵌合する構成である。 Next, the portable case 30 for temperature measuring devices provided with the drip-proof structure 10 will be described with reference to FIGS. As shown in the side view of FIG. 8, the temperature measuring instrument case 30 has water tightness by fitting the case upper part 1 a shown in FIGS. 9 and 10 and the case lower part 1 b shown in FIG. It is the structure which fits the case 1 comprised so that it might raise, and the cover for power supply devices (cover for drip-proof rooms) 2 shown in FIG.
ケース上側部１ａは、図８に示すように、外部仕切壁３に表示装置が収まる表示装置保持３１と操作装置が収まる操作装置保持部３２を備え、ケース下側部１ｂは、電源装置が収まる電源装置保持部３３と計測端子が収まる計測端子保持部３４を備える。また、ケース上側部１ａとケース下側部１ｂとが勘合して、主基板が収まる主基板保持部３５を形成する。 As shown in FIG. 8, the case upper portion 1a includes a display device holder 31 in which the display device is accommodated in the external partition wall 3 and an operation device holder 32 in which the operation device is accommodated, and the case lower portion 1b accommodates the power supply device. A power supply device holding unit 33 and a measurement terminal holding unit 34 in which measurement terminals are accommodated are provided. Further, the case upper portion 1a and the case lower portion 1b are fitted together to form the main substrate holding portion 35 in which the main substrate is accommodated.
また、ケース上側部１ａとケース下側部１ｂとが勘合し、電源装置保持部３３と主基板保持部３５とからなる防滴室１１、貯留室１２、及び図示しない排出室１３とを形成して、防滴構造１０を形成する。 In addition, the case upper portion 1a and the case lower portion 1b are fitted together to form a drip-proof chamber 11, a storage chamber 12, and a discharge chamber 13 (not shown) composed of the power supply device holding portion 33 and the main substrate holding portion 35. Thus, the drip-proof structure 10 is formed.
ここで、温度計測器用ケース３０の通常の姿勢について説明する。温度計測器用ケース３０を使用するときに計測者は、表示装置を見ながら計測するので、外部仕切壁５が下面となる姿勢の状態である。また、計測しないときに温度計測器用ケース３０を保管するときも、外部仕切壁５を下面とする姿勢の状態である。よって、図８に示す姿勢の状態のときに、外部通気孔１６が排水孔１８（図示しない）と開閉排水孔１９よりも上方に位置するように、且つ、排水孔１８（図示しない）と開閉排水孔１９とが、第１連通孔１４と第２連通孔１５（図示しない）よりも下方に位置するように構成する。 Here, a normal posture of the temperature measuring instrument case 30 will be described. When the temperature measuring instrument case 30 is used, the measurer performs the measurement while looking at the display device, so that the external partition wall 5 is in a state of being in the lower surface. Further, when the temperature measuring instrument case 30 is stored when it is not measured, the external partition wall 5 is in the posture of the lower surface. Therefore, in the state of the posture shown in FIG. 8, the external vent hole 16 is positioned above the drain hole 18 (not shown) and the open / close drain hole 19, and opens / closes with the drain hole 18 (not shown). The drain hole 19 is configured to be positioned below the first communication hole 14 and the second communication hole 15 (not shown).
そのため、図９の（ａ）及び図１０の（ａ）に示すように、外部通気孔１６を外部仕切壁４ａに設け、且つ、図１１の（ｂ）に示すように、排水孔１８と開閉排水孔１９とを、ケース下側部１ｂに設けることで、外部から外部通気孔１６を介して水が温度計測器用ケース３０の内部に進入しにくくすることができ、仮に内部へ進入しても、防滴室１１への
水の進入を防ぐことができる。
Therefore, as shown in FIGS. 9A and 10A, an external ventilation hole 16 is provided in the external partition wall 4a, and as shown in FIG. 11B, the drain hole 18 is opened and closed. By providing the drain hole 19 in the case lower side portion 1b, it is possible to make it difficult for water to enter the inside of the case 30 for the temperature measuring instrument from the outside through the external vent hole 16. The water can be prevented from entering the drip-proof chamber 11.
温度計測器用ケース３０の防滴構造１０を、図９の（ｂ）に示すように、防滴室１１と貯留室１２とをｘ方向に配置して、第１連通孔１４で連通し、貯留室１２と排出室１３とをｚ方向に配置して、第２連通孔１５で連通すると、第１連通孔１４と第２連通孔１５と外部通気孔１６とからなる通気路１７を、貯留室１２を介して屈曲させることができる。これにより、通気路１７が複雑化して、より防滴室１１への水の進入を防ぐことができる。 As shown in FIG. 9B, the drip-proof structure 10 of the temperature measuring instrument case 30 is arranged such that the drip-proof chamber 11 and the storage chamber 12 are arranged in the x direction and communicated with each other through the first communication hole 14. When the chamber 12 and the discharge chamber 13 are arranged in the z direction and communicated with each other through the second communication hole 15, a ventilation path 17 including the first communication hole 14, the second communication hole 15, and the external ventilation hole 16 is provided in the storage chamber. 12 can be bent. Thereby, the ventilation path 17 becomes complicated and it is possible to prevent water from entering the drip-proof chamber 11.
第２連通孔１５の排出室１３側の開口部１５ａを、図１０の（ｂ）及び（ｄ）に示すように、第２仕切壁８から突出した位置になるように形成すると共に、貯留室１２側の開口部１５ｂを面取り加工して形成する。また、開口部１５ａの大きさｒ２は、好ましくは水の表面張力が十分に働き防滴室１１内部の圧力によって水が防滴室１１へ進入しにくい大きさ、より好ましくはΦ０．５ｍｍ〜Φ１．５ｍｍがよい。これにより、貯留室１２から空気、及び貯留室１２に溜まった水滴が通過しやすく、一方で、排出室１３から貯留室１２へ水滴が通過しにくい構造になり、結果として、防滴室１１への水の進入を防ぐことができる。なお、第１連通孔１４も第２連通孔１５と同様の構成となる。 The opening 15a on the discharge chamber 13 side of the second communication hole 15 is formed so as to protrude from the second partition wall 8 as shown in FIGS. The opening 15b on the 12th side is formed by chamfering. In addition, the size r2 of the opening 15a is preferably a size in which the surface tension of water is sufficient to prevent water from entering the drip-proof chamber 11 due to the pressure inside the drip-proof chamber 11, and more preferably Φ0.5 mm to Φ1. .5mm is good. As a result, air and water droplets accumulated in the storage chamber 12 easily pass from the storage chamber 12, while water droplets hardly pass from the discharge chamber 13 to the storage chamber 12. Can prevent water from entering. The first communication hole 14 has the same configuration as the second communication hole 15.
排水孔１８と開閉排水孔１９を、図１１の（ａ）及び（ｂ）に示すように、ケース下側部１ｂの下面である、外部仕切壁５に設けると、温度計測器用ケース３０を使用しないときに、排水孔１８と開閉排水孔１９がｙ方向の下方に開口するため、貯留室１２と排出室１３の結露により発生する水滴を外部へ排出することができる。また、温度計測器用ケース３０を使用するときも、通常の使用方法では、排水孔１８は、第２連通孔１５と外部連通孔１６よりも、ｙ方向の下方に位置することが多いため、外部より侵入した水滴や結露による水滴を排出することができる。 When the drainage hole 18 and the open / close drainage hole 19 are provided in the external partition wall 5, which is the lower surface of the case lower side portion 1b, as shown in FIGS. 11A and 11B, the temperature measuring instrument case 30 is used. When not, the drainage hole 18 and the open / close drainage hole 19 open downward in the y direction, so that water droplets generated by condensation between the storage chamber 12 and the discharge chamber 13 can be discharged to the outside. In addition, when the temperature measuring instrument case 30 is used, the drain hole 18 is often located below the second communication hole 15 and the external communication hole 16 in the y direction in a normal usage method. More intruded water droplets and water droplets due to condensation can be discharged.
図１２の（ａ）に示すように、電源装置用カバー２をケース下側部１ｂに嵌合した際に、排水孔１８が外部に開口するように排水孔用開口部２１を開口して形成すると共に、開閉排水孔１９を閉止するように閉止栓２０を電源装置用カバー２から突出して形成する。これにより、排水孔１８からは、常に水を排出することができる。また、開閉排水孔１９に閉止栓２０を差し込み、閉止することで、貯留室１２への外部からの水の進入口を塞ぐことができる。 As shown in FIG. 12 (a), when the power supply device cover 2 is fitted to the case lower part 1b, the drain hole opening 21 is formed so that the drain hole 18 opens to the outside. At the same time, a closing plug 20 is formed so as to protrude from the power supply device cover 2 so as to close the open / close drain hole 19. Thereby, water can always be discharged from the drain hole 18. Moreover, the entrance of water from the outside to the storage chamber 12 can be closed by inserting the closing plug 20 into the open / close drain hole 19 and closing it.
この電源装置用カバー２は、温度計測器用ケース３０の電源装置の蓋となっており、温度計測器用ケース３０を分解せずとも、容易に脱着可能に形成され、ケース下側部１ｂに嵌合して、電源装置保持部３３とともに、電源装置を保持している。これにより、貯留室１２に水滴が溜まったときに、容易に防滴室用カバー２をケース下側部１ｂから外して、開閉排水孔１９から閉止栓２０を抜くことができる。そのため、貯留室１２に溜まった水が防滴室１１へ進入することを事前に防ぐことができる。 The power supply device cover 2 serves as a lid for the power supply device of the temperature measuring instrument case 30, and is formed so as to be easily removable without disassembling the temperature measuring instrument case 30, and is fitted to the case lower portion 1b. Thus, the power supply device is held together with the power supply device holding unit 33. As a result, when water droplets accumulate in the storage chamber 12, the drip-proof chamber cover 2 can be easily removed from the case lower side 1 b and the closing plug 20 can be removed from the open / close drain hole 19. Therefore, it is possible to prevent the water accumulated in the storage chamber 12 from entering the drip-proof chamber 11 in advance.
上記の構成によれば、温度計測器用ケース３０が防滴構造１０を備えるので、前述した作用効果と同様の作用効果を得ることができる。これにより、携帯可能な温度計測器用ケース３０は、温度差がある場所へ持ち運び、温度計測器用ケース３０の内部に水分が進入しても、その水分を気体として外部へ排出し、又は結露による水滴を外部へ排出するので、主基板や電源装置などの故障を防ぐことができる。また、例えば、温度計測器用ケース３０を水の中に落とすなどの不測の事態であっても、従来よりも内部への水の進入を防ぐことができる。 According to said structure, since the case 30 for temperature measuring devices is provided with the drip-proof structure 10, the effect similar to the effect mentioned above can be acquired. Thereby, the portable temperature measuring instrument case 30 is carried to a place where there is a temperature difference, and even if moisture enters the temperature measuring instrument case 30, the moisture is discharged to the outside as a gas, or water droplets due to condensation Is discharged to the outside, so that failure of the main board and the power supply device can be prevented. Moreover, even if it is an unexpected situation, such as dropping the case 30 for temperature measuring devices in water, the entrance of water to the inside can be prevented more than before.
さらに、ケース１の加工で上記の作用効果を得ることができるので、ゴムパッキンやケースの継ぎ目にシールを用いるケースと比べて、部品点数を減少させ、及び加工点数も減
少させることができ、製造コストを低減することができる。また、上記の理由から、温度計測器用ケース３０を容易に分解することもでき、メンテナンス性を向上させることができる。
Furthermore, since the above-described effects can be obtained by processing the case 1, the number of parts can be reduced and the number of processing points can be reduced as compared with the case using a seal at the joint of the rubber packing or the case. Cost can be reduced. In addition, for the above reason, the temperature measuring instrument case 30 can be easily disassembled, and maintainability can be improved.
上記の実施の携帯のケースの防滴構造１０は、携帯可能な温度計測器用ケース３０内に設けた場合で説明したが、このケースの防滴構造１０を適用することができるケースは温度計測器用ケース３０に限定しない。 Although the portable case drip-proof structure 10 of the above embodiment has been described in the case of being provided in the portable temperature measuring instrument case 30, the case to which the drip-proof structure 10 of this case can be applied is for a temperature measuring instrument. The case 30 is not limited.
本発明のケースの防滴構造は、形状の工夫により、部品点数の増加を伴わずに防滴ができ、しかも、外部との通気性を確保して内部における結露を防止できるので、特に携帯可能な温度計測器用ケースに利用することができる。 The drip-proof structure of the case of the present invention is particularly portable because it can be drip-proof without increasing the number of parts by devising the shape, and it can also ensure external ventilation and prevent condensation inside It can be used for a case for various temperature measuring instruments.
１ ケース
２ 防滴室用カバー（電源装置用カバー）
３〜６ 外部仕切壁
７ 第１仕切壁
８ 第２仕切壁
１０ 防滴構造
１１ 防滴室
１２ 貯留室
１３ 排出室
１４ 第１連通孔
１５ 第２連通孔
１６ 外部通気孔
１７ 通気路
１８ 排水孔
１９ 開閉排水孔
２０ 閉止栓
３０ 温度計測器用ケース
1 Case 2 Drip-proof room cover (cover for power supply)
3-6 External partition wall 7 First partition wall 8 Second partition wall 10 Drip-proof structure 11 Drip-proof chamber 12 Reservoir chamber 13 Discharge chamber 14 First communication hole 15 Second communication hole 16 External vent hole 17 Vent path 18 Drain hole 19 Open / close drain hole 20 Closure plug 30 Case for temperature measuring instrument
Claims (7)
前記防滴室と前記排出室との間に、前記防滴室と連通する第１連通孔を有した第１仕切壁と、前記排出室に連通する第２連通孔を有した第２仕切壁とに仕切られた貯留室を備え、
前記貯留室に、水を排出するときに開口する開閉排水孔を設けることを特徴とするケースの防滴構造。 In the drip-proof structure of the case provided with a drain hole different from the external vent hole which is an opening to the outside of the case in the vent path in the discharge chamber provided in the drip-proof chamber and the vent path to the outside of the case,
Between the drip-proof chamber and the discharge chamber, a first partition wall having a first communication hole communicating with the drip-proof chamber, and a second partition wall having a second communication hole communicating with the discharge chamber A storage chamber partitioned into
A drip-proof structure for a case, wherein the storage chamber is provided with an open / close drainage hole that opens when water is discharged.
前記外部通気孔の開口の大きさを、前記排水孔と前記開閉排水孔の開口の大きさよりも小さく形成し、前記第１連通孔の貯留室側の開口部の開口の大きさと前記第２連通孔の排出室側の開口部の開口の大きさとを、前記排水孔と前記開閉排水孔の開口の大きさよりも小さく形成することを特徴とする請求項１〜４のいずれか１項に記載のケースの防滴構造。 An opening on the storage chamber side of the first communication hole is provided at a position protruding from the wall surface of the first partition wall into the storage chamber, and at a position protruding from the wall surface of the second partition wall into the discharge chamber. An opening on the discharge chamber side of the second communication hole is provided,
The size of the opening of the external vent hole is smaller than the size of the opening of the drain hole and the opening / closing drain hole, and the size of the opening of the first communication hole on the storage chamber side and the second communication hole The size of the opening of the opening on the discharge chamber side of the hole is formed smaller than the size of the opening of the drainage hole and the opening / closing drainage hole. Drip-proof structure of the case.
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| JP5775835B2 JP5775835B2 (en) | 2015-09-09 |
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| JP4222689B2 (en) * | 1999-06-25 | 2009-02-12 | スリーエム イノベイティブ プロパティズ カンパニー | Reflector and method for manufacturing reflector |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0677669A (en) * | 1992-08-24 | 1994-03-18 | Fujitsu Ltd | Housing structure for outdoor device |
| JP2004241715A (en) * | 2003-02-07 | 2004-08-26 | Anritsu Keiki Kk | Simple drip-proof structure of case |
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2012
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0677669A (en) * | 1992-08-24 | 1994-03-18 | Fujitsu Ltd | Housing structure for outdoor device |
| JP2004241715A (en) * | 2003-02-07 | 2004-08-26 | Anritsu Keiki Kk | Simple drip-proof structure of case |
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