WO2022070693A1 - Portable gas analysis device - Google Patents

Portable gas analysis device Download PDF

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Publication number
WO2022070693A1
WO2022070693A1 PCT/JP2021/031138 JP2021031138W WO2022070693A1 WO 2022070693 A1 WO2022070693 A1 WO 2022070693A1 JP 2021031138 W JP2021031138 W JP 2021031138W WO 2022070693 A1 WO2022070693 A1 WO 2022070693A1
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WO
WIPO (PCT)
Prior art keywords
back surface
casing
portable gas
rear cover
gas analyzer
Prior art date
Application number
PCT/JP2021/031138
Other languages
French (fr)
Japanese (ja)
Inventor
冬樹 青塚
明文 香川
孝平 橘
Original Assignee
株式会社堀場製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 株式会社堀場製作所 filed Critical 株式会社堀場製作所
Priority to DE212021000473.3U priority Critical patent/DE212021000473U1/en
Publication of WO2022070693A1 publication Critical patent/WO2022070693A1/en

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0213—Venting apertures; Constructional details thereof
    • H05K5/0214—Venting apertures; Constructional details thereof with means preventing penetration of rain water or dust
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/76—Chemiluminescence; Bioluminescence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/02—Mechanical
    • G01N2201/022—Casings
    • G01N2201/0221—Portable; cableless; compact; hand-held
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00—Features of devices classified in G01N21/00
    • G01N2201/02—Mechanical
    • G01N2201/023—Controlling conditions in casing

Definitions

  • the present invention relates to a portable gas analyzer that is portable.
  • Patent Document 1 in a portable gas analyzer as shown in Patent Document 1 or Patent Document 2, in a casing in which an analytical instrument is housed, an operation unit for operating the analytical instrument is provided on the front portion and the back surface thereof. Some units are provided with piping, wiring, or power supply connectors for analytical instruments.
  • this portable gas analyzer When using this portable gas analyzer outdoors, it is considered to add a dust-proof / drip-proof structure to protect it from dust and water droplets.
  • a dust-proof / drip-proof structure For example, in a portable gas analyzer, parts that require drip-proof and dust-proof (for example, power supply connectors, pipes, wiring connectors, etc.) are covered with a cover, and the portable gas analyzer is housed in a box. There is.
  • the portable gas analyzer often accommodates as many analytical instruments as possible in a small casing, and the performance is how efficiently the heat inside the casing is discharged to the outside. It is important for maintenance.
  • the portable gas analyzer is covered with a cover or housed in a box, the heat exhausted from the inside of the casing is hindered, and it is difficult to stabilize the temperature inside the casing within the range where the performance can be maintained.
  • the present invention has been made in view of the above-mentioned problems, and its main object is to enable dust-proofing or drip-proofing of a connector provided on the back surface without impairing heat dissipation. ..
  • the portable gas analyzer is a portable gas analyzer that accommodates an analysis device for analyzing gas and the analysis device, and has the analysis device on the front surface.
  • An operation unit for operating the device is provided, and between the casing provided with the piping, wiring, or power supply connector of the analytical instrument on the back surface and the back surface facing the back surface of the casing. It is characterized by forming a gap and providing a dust-proof or drip-proof rear cover that covers the connector.
  • a dust-proof or drip-proof rear cover is provided so as to face the back surface of the casing and cover the connector, so that the connector can be dust-proof or drip-proof. be able to.
  • the dust-proof or drip-proof rear cover forms a gap with the back surface portion, heat is exchanged through the gap portion, so that the heat dissipation property on the back surface portion is not impaired.
  • the casing side of the rear cover is provided with a gutter portion that receives water droplets that infiltrate between the back surface portion and the rear cover.
  • the gutter portion is continuous with a horizontal gutter portion extending left and right at the upper part of the back surface portion and extending vertically on at least one of the left and right sides of the back surface portion. It is desirable to have a downspout. With this configuration, in the gap between the rear cover and the back surface portion, a horizontal trough portion is provided on the upper portion of the back surface portion where water droplets such as rain easily enter, so that the intrusion of water droplets can be suitably prevented. Further, since the vertical gutter portion is continuously provided in the horizontal gutter portion, the water flowing from the horizontal gutter portion can prevent the back portion from getting wet and allow the water to flow to the lower part of the casing.
  • the rear cover receives the water flowing through the gutter portion and drains the water below the lower end portion of the gutter portion. It is desirable to have a gutter. Since the water from the gutter portion is guided to the lower side of the casing by this discharge portion, the height of the water rebounding on the ground or the like can be lowered, and the casing is less likely to get wet.
  • one or a plurality of ridges extending to the left and right of the back surface portion are formed, and the upward surface of the ridges is an inclined surface having a downward slope. Is desirable. With this configuration, the water adhering to the outer surface of the rear cover can easily flow down and the appearance can be improved. It is also possible to increase the mechanical strength of the rear cover.
  • Some portable gas analyzers have ventilation slits formed on at least one of the left and right side surface portions of the casing.
  • a dustproof or drip-proof side cover that covers the ventilation slit is further provided, and the side cover covers the upper part of the ventilation slit without a gap and opens below the ventilation slit. Is desirable to form.
  • the operation unit is a touch panel type display.
  • the casing has a frame member surrounding the touch panel display, and a protective film is provided on the back surface of the frame member so as to close the opening to which the touch panel display is exposed. It is desirable that it is.
  • the portable gas analyzer 100 of the present embodiment is, for example, portable with one hand, and its mass is, for example, 30 kg or less. Further, the portable gas analyzer 100 analyzes the concentration of a predetermined component contained in, for example, the atmosphere or exhaust gas such as engine exhaust gas and flue exhaust gas.
  • the portable gas analyzer 100 includes an analysis device 2 for analyzing gas and a casing 3 for accommodating the analysis device 2.
  • the analytical instrument 2 can simultaneously measure, for example, the concentrations of NO X , SO 2 , CO, CO 2 , and O 2 in the gas.
  • the analytical instrument 2 includes an analytical instrument 2a using a chemical emission method (CLD) for measuring the NO X concentration and a non-dispersion for measuring the SO 2 concentration, the CO concentration or the CO 2 concentration.
  • CLD chemical emission method
  • analytical instruments 2b using the infrared absorption method (NDIR) and magnetic force type, zirconia type, or electrode type analytical instruments 2c for measuring O 2 concentration.
  • NDIR infrared absorption method
  • the component to be measured by the analytical instrument 2 is not limited to the above, and may be one that measures the concentration of any one component, one that uses another principle, or another component. It may be the one that measures the concentration of.
  • the casing 3 has, for example, a substantially rectangular parallelepiped shape that accommodates the above-mentioned analytical instrument 2.
  • An operation unit 4 for operating the analysis device 2 is provided on the front surface 3F of the casing 3, and the piping, wiring, power supply connectors 5, 6, etc. of the analysis device 2 are provided on the back surface 3R.
  • the connector 5 of the pipe includes, for example, a connector for a sample gas inlet, a connector for a calibration gas inlet, a connector for other gas inlets, a connector for an exhaust gas outlet, and a connector for a drain water outlet.
  • the upper surface portion 3T of the casing 3 is provided with a handle 3H for facilitating carrying.
  • the operation unit 4 of the present embodiment is a touch panel type display, and operation buttons such as measurement buttons and calibration buttons are displayed on the display, and the concentration of each measurement component is displayed. Further, the operation unit 4 is provided on the front surface portion 3F of the casing 3 so as to face diagonally upward, so that the user can easily operate the operation unit 4 and the displayed contents can be easily visually recognized.
  • An input signal from the operation unit 4 is sent to a control unit (not shown), and the control unit controls the analysis device 2 to control the concentration of the component to be measured in the gas or the analysis device 2. Calibration is performed.
  • Analytical equipment 2d such as an oxidizing agent, a dehumidifying agent, and an adsorbent necessary for measuring the concentration of each component is connected to the connector 5 of the pipe provided on the back surface 3R of the casing 3. Further, a power cable (not shown) from an external power source is connected to the power connector 6. In addition, for example, a cooling fan 7 for heat dissipation of an electronic cooler is provided on the back surface 3R, a connector 8 for signal transmission (for wiring), and a power switch 9 for a portable gas analyzer 100 are also provided. Has been done.
  • the portable gas analyzer 100 of the present embodiment has a dust-proof or drip-proof rear cover 10 provided on the back surface 3R of the casing 3.
  • the rear cover 10 covers the connectors 5, 6, 8, the exhaust fan 7, and the power switch 9, and is dust-proof or drip-proof.
  • the rear cover 10 is also dust-proof or drip-proof for the casing component fitting portion (for example, the portion where the sheet metal overlaps with the sheet metal) on the back surface of the casing.
  • the rear cover 10 faces the back surface portion 3R of the casing 3 and forms a gap S with the back surface portion 3R.
  • the rear cover 10 of the present embodiment collectively covers the connectors 5, 6, 8, the exhaust fan 7, and the power switch 9 by covering substantially the entire back surface portion 3R (see FIG. 2).
  • a notch 10k for taking out a power cable or the like to the outside is formed on the lower side of the rear cover 10.
  • the rear cover 10 is attached to the back surface portion 3R of the casing 3 by the cover frame 11. Further, the rear cover 10 is rotatably attached to the cover frame 11 by, for example, a hinge, and the cover position P covered by the rear cover 10 facing the back surface 3R and the rear cover 10 opening the back surface 3R are open. It is configured to be movable to and from the position Q.
  • a gutter portion 12 for receiving water droplets infiltrating between the back surface portion 3R and the rear cover 10 is provided.
  • the gutter portion 12 is formed by using the cover frame 11.
  • the gutter portion 12 mainly receives water droplets that infiltrate through the upper gap between the back surface portion 3R and the rear cover 10, and extends to the left and right on the upper side portion of the back surface portion 3R. It has a horizontal gutter portion 121 and a vertical gutter portion 122 that is continuous with the horizontal gutter portion 121 and extends vertically on the left and right side portions of the back surface portion 3R.
  • the gutter portion 12 has, for example, a U-shaped cross section.
  • one or a plurality of ridges 101 extending to the left and right of the back surface portion 3R are formed on the outer surface of the rear cover 10 opposite to the casing 3.
  • the upward surface of the ridge 101 is an inclined surface 101x having a downward slope, and in the present embodiment, the vertical cross-sectional shape of the ridge 101 has a substantially triangular shape.
  • the rear cover 10 has a discharge portion 102 that receives the water flowing through the gutter portion 12 and drains the water below the lower end portion of the gutter portion 12.
  • the discharge portion 102 is an inclined surface 102x located below the lower end portion of the gutter portion 12 (specifically, the lower end portion of the downspout portion 122), and the water from the gutter portion 12 is the inclined surface 102x. It flows to the lower end portion of the rear cover 10 along the above, and flows down to the installation surface of the portable gas analyzer 100.
  • a ventilation slit 31 is formed in at least one of the left and right side surface portions of the casing 3 (both in the present embodiment), and the portable gas analysis of the present embodiment is formed.
  • the device 100 further includes a dust-proof or drip-proof side cover 13 that covers the ventilation slit 31.
  • the side cover 13 covers the upper portion and the left and right side portions of the ventilation slit 31 without a gap, and forms an opening 13h below the ventilation slit 31.
  • a protective cover (not shown) for imparting impact resistance to the casing 3 is provided on the outer side of the side cover 13.
  • the impact-resistant protective cover is open to the left and right side surface portions of the casing 3 in the front-rear direction and in the top-bottom direction.
  • a sealing member is provided at a portion where water is expected to enter, or the inside of the casing 3 is caulked to prevent dust or drip.
  • hard plastic is used for some sealing members instead of packing such as rubber.
  • the casing 3 has a frame member 301 surrounding the touch panel display 4 and a casing main body 302.
  • a protective film 14 made of resin is provided on the back surface of the frame member 301 so as to close the opening where the touch panel display 4 is exposed.
  • the protective film 14 is in close contact with the surface of the touch panel display 4 in a state where the touch panel display 4 is fixed.
  • the frame member 301 is assembled to the casing main body 302 by being fixed to the structural material provided inside the casing main body 302.
  • a resin sealing member 15 such as urethane is provided on the inner surface of the frame member 301 facing the outer surface of the casing main body 302, so that the maintainability can be improved while maintaining the performance of the seal member 15.
  • the connectors 5, 6, 8 and the cooling fan 7 and the power switch 9 are covered with dustproof or proof so as to face the back surface 3R of the casing 3 and cover the connectors 5, 6, 8 and the power switch 9. Since the rear cover 10 for dripping is provided, it is possible to make the connectors 5, 6, 8 and the cooling fan 7 and the power switch 9 dust-proof or drip-proof.
  • the dust-proof or drip-proof rear cover 10 forms a gap S with the back surface portion 3R, heat is exchanged through the gap S, so that heat dissipation in the back surface portion 3R is improved. There is no loss.
  • the horizontal gutter portion 121 is provided above the back surface portion 3R where water droplets such as rain easily enter, so that the intrusion of water droplets is suitably prevented. be able to. Further, since the vertical gutter portion 122 is continuously provided on the horizontal gutter portion 121, the water flowing from the horizontal gutter portion 121 can be allowed to flow to the lower part of the casing 3 while preventing the back surface portion 3R from getting wet.
  • the rear cover 10 has a discharge portion 102 that receives the water flowing through the gutter portion 12 and drains the water below the lower end portion of the gutter portion 12, the water flowing from the gutter portion 12 causes the back surface portion 3R and the like. It is possible to further prevent the casing 3 from getting wet. Since the water from the gutter portion 12 is guided to the lower side of the casing 3 by the discharge portion 102, the height of the water rebounding on the ground or the like can be lowered, and the casing 3 is less likely to get wet.
  • one or more ridges 101 are formed on the outer surface of the rear cover 10 and the upward surface of the ridges 101 is an inclined surface 101x having a downward slope, the water adhering to the outer surface of the rear cover 10 is drained well. The appearance can be improved. It is also possible to increase the mechanical strength of the rear cover.
  • the gutter portion 12 provided on the inner surface of the rear cover 10 has a configuration having one gutter portion 121 and two downspout portions 122, but one gutter portion 121 and one end portion of the one horizontal gutter portion 121. It may be configured to have one continuous downspout portion 122.
  • the rear cover 10 of the above-described embodiment has a configuration having the ridges 101 extending to the left and right, it may be a configuration without the ridges 101. Further, the outer surface of the rear cover 10 may be water-repellent. In order to further improve heat dissipation, it may have ridges made of a material such as aluminum.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

The present invention is a portable gas analysis device 100 that can be transported and that enables dust-proofing or drip-proofing of a connector provided to a back surface part without loss of heat dissipation performance, the portable gas analysis device 100 comprising: an analysis device 2 for analyzing a gas; a casing 3 in which the analysis device 2 is accommodated, an operation part 4 for operating the analysis device 2 being provided on a front surface part 3F of the casing 3, and connectors 5, 6, 8 for piping, wiring, or power supply of the analysis device 2 being provided on a back surface part 3R of the casing 3; and a rear cover 10 for dust-proofing or drip-proofing, the rear cover 10 covering the connectors 5, 6, 8, facing the back surface part 3R of the casing 3, and forming a gap S with respect to the back surface part 3R.

Description

可搬型ガス分析装置Portable gas analyzer
　本発明は、持ち運び可能な可搬型ガス分析装置に関するものである。 The present invention relates to a portable gas analyzer that is portable.
　従来、特許文献１又は特許文献２に示すような可搬型ガス分析装置では、内部に分析用機器が収容されたケーシングにおいて、前面部に分析用機器を操作するための操作部が設けられ、背面部に分析用機器の配管、配線又は電源のコネクタが設けられたものがある。 Conventionally, in a portable gas analyzer as shown in Patent Document 1 or Patent Document 2, in a casing in which an analytical instrument is housed, an operation unit for operating the analytical instrument is provided on the front portion and the back surface thereof. Some units are provided with piping, wiring, or power supply connectors for analytical instruments.
　この可搬型ガス分析装置を屋外などで使用する場合には、ホコリや水滴などから保護するための防塵・防滴構造を付加することが考えられている。例えば、可搬型ガス分析装置において防滴・防塵を要する箇所（例えば電源のコネクタや配管、配線のコネクタ等）をカバーで覆ったり、可搬型ガス分析装置をボックス内に収容することが行われている。 When using this portable gas analyzer outdoors, it is considered to add a dust-proof / drip-proof structure to protect it from dust and water droplets. For example, in a portable gas analyzer, parts that require drip-proof and dust-proof (for example, power supply connectors, pipes, wiring connectors, etc.) are covered with a cover, and the portable gas analyzer is housed in a box. There is.
　ここで、可搬型ガス分析装置は、その携行性の観点から、できるだけ多くの分析用機器を小さなケーシング内に収容することが多く、ケーシング内部の熱を如何に効率良く外部に排出するかが性能維持のために重要となる。 Here, from the viewpoint of portability, the portable gas analyzer often accommodates as many analytical instruments as possible in a small casing, and the performance is how efficiently the heat inside the casing is discharged to the outside. It is important for maintenance.
　しかしながら、可搬型ガス分析装置をカバーで覆ったり、ボックス内に収容したりすると、ケーシング内部からの排熱が妨げられてしまい、ケーシング内部の温度を性能維持ができる範囲に安定させることが難しい。 However, if the portable gas analyzer is covered with a cover or housed in a box, the heat exhausted from the inside of the casing is hindered, and it is difficult to stabilize the temperature inside the casing within the range where the performance can be maintained.
特開２００５－３４７０号公報Japanese Unexamined Patent Publication No. 2005-3470 特開２０１２－１８９５４９号公報Japanese Unexamined Patent Publication No. 2012-189549
　本発明は上述したような問題に鑑みてなされたものであり、放熱性を損なうことなく、背面部に設けられたコネクタの防塵又は防滴を可能にすることをその主たる課題とするものである。 The present invention has been made in view of the above-mentioned problems, and its main object is to enable dust-proofing or drip-proofing of a connector provided on the back surface without impairing heat dissipation. ..
　すなわち、本発明に係る可搬型ガス分析装置は、持ち運び可能な可搬型ガス分析装置であって、ガスを分析するための分析用機器と、前記分析用機器を収容し、前面部に前記分析用機器を操作するための操作部が設けられ、背面部に前記分析用機器の配管、配線又は電源のコネクタが設けられたケーシングと、前記ケーシングの背面部に対向するとともに前記背面部との間で隙間を形成し、前記コネクタを覆う防塵又は防滴用のリアカバーとを備えることを特徴とする。 That is, the portable gas analyzer according to the present invention is a portable gas analyzer that accommodates an analysis device for analyzing gas and the analysis device, and has the analysis device on the front surface. An operation unit for operating the device is provided, and between the casing provided with the piping, wiring, or power supply connector of the analytical instrument on the back surface and the back surface facing the back surface of the casing. It is characterized by forming a gap and providing a dust-proof or drip-proof rear cover that covers the connector.
　このような可搬型ガス分析装置であれば、ケーシングの背面部に対向してコネクタを覆うように防塵又は防滴用のリアカバーを設けているので、コネクタに対して防塵又は防滴を可能にすることができる。ここで、防塵又は防滴用のリアカバーが、背面部との間で隙間を形成しているので、当該隙間を介して熱のやり取りが行われるので、背面部における放熱性を損なうこともない。 In such a portable gas analyzer, a dust-proof or drip-proof rear cover is provided so as to face the back surface of the casing and cover the connector, so that the connector can be dust-proof or drip-proof. be able to. Here, since the dust-proof or drip-proof rear cover forms a gap with the back surface portion, heat is exchanged through the gap portion, so that the heat dissipation property on the back surface portion is not impaired.
　防塵又は防滴用のリアカバーと背面部との間に隙間を形成していることから、その隙間から水滴が浸入する恐れがある。このため、前記リアカバーに対して前記ケーシング側には、前記背面部と前記リアカバーとの間に浸入する水滴を受ける樋部が設けられていることが望ましい。 Since a gap is formed between the dust-proof or drip-proof rear cover and the back surface, there is a risk that water droplets will infiltrate through the gap. Therefore, it is desirable that the casing side of the rear cover is provided with a gutter portion that receives water droplets that infiltrate between the back surface portion and the rear cover.
　前記樋部の具体的な実施の態様としては、前記樋部は、前記背面部の上部において左右に延びる横樋部と、当該横樋部に連続し、前記背面部の左右の少なくとも一方において上下に延びる縦樋部とを有することが望ましい。この構成であれば、リアカバーと背面部との間の隙間において、雨などの水滴が入りやすい背面部上部に横樋部を設けているので、水滴の浸入を好適に防ぐことができる。また、横樋部に連続して縦樋部を設けているので、横樋部から流れる水で背面部が濡れることを防ぎつつケーシングの下部に流すことができる。 As a specific embodiment of the gutter portion, the gutter portion is continuous with a horizontal gutter portion extending left and right at the upper part of the back surface portion and extending vertically on at least one of the left and right sides of the back surface portion. It is desirable to have a downspout. With this configuration, in the gap between the rear cover and the back surface portion, a horizontal trough portion is provided on the upper portion of the back surface portion where water droplets such as rain easily enter, so that the intrusion of water droplets can be suitably prevented. Further, since the vertical gutter portion is continuously provided in the horizontal gutter portion, the water flowing from the horizontal gutter portion can prevent the back portion from getting wet and allow the water to flow to the lower part of the casing.
　樋部から流れる水によって背面部などのケーシングが濡れることをより一層防ぐためには、前記リアカバーは、前記樋部を流れた水を受け、前記樋部の下端部よりも下側に水を排水させる排出部を有することが望ましい。この排出部により樋部からの水がケーシングの下側に案内されるので、地面等で跳ね返る水の高さを低くすることができ、ケーシングが濡れにくくなる。 In order to further prevent the casing such as the back portion from getting wet by the water flowing from the gutter portion, the rear cover receives the water flowing through the gutter portion and drains the water below the lower end portion of the gutter portion. It is desirable to have a gutter. Since the water from the gutter portion is guided to the lower side of the casing by this discharge portion, the height of the water rebounding on the ground or the like can be lowered, and the casing is less likely to get wet.
　前記リアカバーにおける前記ケーシングとは反対側の外面には、前記背面部の左右に延びる１又は複数の凸条が形成されており、前記凸条の上向き面は、下り勾配を有する傾斜面であることが望ましい。この構成であれば、リアカバーの外面に付着した水が流れ落ちやすくなるとともに、外観を良くすることができる。また、リアカバーの機械的強度を増すこともできる。 On the outer surface of the rear cover opposite to the casing, one or a plurality of ridges extending to the left and right of the back surface portion are formed, and the upward surface of the ridges is an inclined surface having a downward slope. Is desirable. With this configuration, the water adhering to the outer surface of the rear cover can easily flow down and the appearance can be improved. It is also possible to increase the mechanical strength of the rear cover.
　可搬型ガス分析装置には、前記ケーシングの左右側面部の少なくとも一方に、通気スリットが形成されているものがある。この構成の場合には、前記通気スリットを覆う防塵又は防滴用のサイドカバーをさらに有し、前記サイドカバーは、前記通気スリットの上部を隙間無く覆うとともに、前記通気スリットよりも下側に開口を形成することが望ましい。この構成であれば、排熱に関わる通気スリットをサイドカバーにより防塵・防滴を担保する最小限の部分で覆うことで、効率的な排熱と防塵又は防滴を両立させることができる。 Some portable gas analyzers have ventilation slits formed on at least one of the left and right side surface portions of the casing. In the case of this configuration, a dustproof or drip-proof side cover that covers the ventilation slit is further provided, and the side cover covers the upper part of the ventilation slit without a gap and opens below the ventilation slit. Is desirable to form. With this configuration, by covering the ventilation slits related to heat exhaust with the minimum portion that guarantees dustproof and drip-proof with a side cover, it is possible to achieve both efficient heat exhaust and dust-proof or drip-proof.
　前記操作部は、タッチパネル式ディスプレイであることが考えられる。この構成の場合には、前記ケーシングは、前記タッチパネル式ディスプレイの周囲を囲う枠部材を有し、前記枠部材の裏面には、前記タッチパネル式ディスプレイが露出する開口部を塞ぐように保護フィルムが設けられていることが望ましい。 It is conceivable that the operation unit is a touch panel type display. In the case of this configuration, the casing has a frame member surrounding the touch panel display, and a protective film is provided on the back surface of the frame member so as to close the opening to which the touch panel display is exposed. It is desirable that it is.
　以上に述べた本発明によれば、放熱性を損なうことなく、背面部に設けられたコネクタの防塵又は防滴を可能にすることができる。 According to the present invention described above, it is possible to make the connector provided on the back surface dust-proof or drip-proof without impairing heat dissipation.
本発明の一実施形態に係る可搬型ガス分析装置の全体模式図である。It is an overall schematic diagram of the portable gas analyzer which concerns on one Embodiment of this invention. 同実施形態の可搬型ガス分析装置を模式的に示す背面図である。It is a back view schematically showing the portable gas analyzer of the same embodiment. 同実施形態のリアカバーを模式的に示す断面図である。It is sectional drawing which shows typically the rear cover of the same embodiment. 同実施形態のリアカバーを除いた可搬型ガス分析装置を模式的に示す背面図である。It is a back view schematically showing the portable gas analyzer excluding the rear cover of the same embodiment. 同実施形態のリアカバーの排出部を模式的に示す断面図である。It is sectional drawing which shows typically the discharge part of the rear cover of the same embodiment. 同実施形態のケーシングの側面部を模式的に示す図である。It is a figure which shows typically the side surface part of the casing of the same embodiment. 同実施形態の操作部周りのケーシングを模式的に示す断面図である。It is sectional drawing which shows typically the casing around the operation part of the same embodiment.
１００・・・可搬型ガス分析装置
２・・・分析用機器
３・・・ケーシング
３Ｆ・・・前面部
３Ｒ・・・背面部
３１・・・通気スリット
３０１・・・枠部材
３０１ｈ・・・開口部
４・・・操作部（タッチパネル式ディスプレイ）
５・・・配管用コネクタ
６・・・電源用コネクタ
１０・・・リアカバー
Ｓ・・・隙間
１０１・・・凸条
１０１ｘ・・・上向き面（傾斜面）
１０２・・・排出部
１２・・・樋部
１２１・・・横樋部
１２２・・・縦樋部
１３・・・サイドカバー
１４・・・保護フィルム 100 ... Portable gas analyzer 2 ... Analytical equipment 3 ... Casing 3F ... Front part 3R ... Back part 31 ... Ventilation slit 301 ... Frame member 301h ... Opening Part 4 ... Operation part (touch panel type display)
5 ... Piping connector 6 ... Power connector 10 ... Rear cover S ... Gap 101 ... Convex 101x ... Upward surface (inclined surface)
102 ... Discharge section 12 ... Gutter section 121 ... Horizontal gutter section 122 ... Vertical gutter section 13 ... Side cover 14 ... Protective film
　以下に、本発明の一実施形態に係る可搬型ガス分析装置について、図面を参照して説明する。 Hereinafter, the portable gas analyzer according to the embodiment of the present invention will be described with reference to the drawings.
　本実施形態の可搬型ガス分析装置１００は、例えば片手で持ち運び可能なものであり、その質量は、例えば３０ｋｇ以下である。また、この可搬型ガス分析装置１００は、例えば大気、又は、エンジン排ガスや煙道排ガスなどの排ガスに含まれる所定成分の濃度を分析するものである。 The portable gas analyzer 100 of the present embodiment is, for example, portable with one hand, and its mass is, for example, 30 kg or less. Further, the portable gas analyzer 100 analyzes the concentration of a predetermined component contained in, for example, the atmosphere or exhaust gas such as engine exhaust gas and flue exhaust gas.
＜１．装置構成＞
　具体的に可搬型ガス分析装置１００は、図１に示すように、ガスを分析するための分析用機器２と、当該分析用機器２を収容するケーシング３とを備えている。 <1. Device configuration>
Specifically, as shown in FIG. 1, the portable gas analyzer 100 includes an analysis device 2 for analyzing gas and a casing 3 for accommodating the analysis device 2.
　分析用機器２は、例えばガス中のＮＯＸ、ＳＯ２、ＣＯ、ＣＯ２、Ｏ２それぞれの濃度を同時測定可能なものである。具体的に分析用機器２には、ＮＯＸ濃度を測定するための化学発光法（ＣＬＤ）を用いた分析用機器２ａと、ＳＯ２濃度、ＣＯ濃度又はＣＯ２濃度を測定するための非分散形赤外線吸収法（ＮＤＩＲ）を用いた分析用機器２ｂと、Ｏ２濃度を測定するための磁気力方式、ジルコニア方式、又は電極方式の分析用機器２ｃがある。なお、分析用機器２の測定対象成分は上記に限られず、何れか１つの成分の濃度を測定するものであっても良いし、その他の原理を使うものであっても良いし、その他の成分の濃度を測定するものであっても良い。 The analytical instrument 2 can simultaneously measure, for example, the concentrations of NO X , SO 2 , CO, CO 2 , and O 2 in the gas. Specifically, the analytical instrument 2 includes an analytical instrument 2a using a chemical emission method (CLD) for measuring the NO X concentration and a non-dispersion for measuring the SO 2 concentration, the CO concentration or the CO 2 concentration. There are analytical instruments 2b using the infrared absorption method (NDIR) and magnetic force type, zirconia type, or electrode type analytical instruments 2c for measuring O 2 concentration. The component to be measured by the analytical instrument 2 is not limited to the above, and may be one that measures the concentration of any one component, one that uses another principle, or another component. It may be the one that measures the concentration of.
　ケーシング３は、上記の分析用機器２を収容する例えば概略直方体形状をなすものである。このケーシング３の前面部３Ｆには、分析用機器２を操作するための操作部４が設けられており、背面部３Ｒには分析用機器２の配管、配線又は電源のコネクタ５、６、等が設けられている。なお、配管のコネクタ５には、例えばサンプルガス入口用のコネクタ、校正ガス入口用のコネクタ、その他のガス入口用のコネクタ、排気ガス出口用のコネクタ、ドレン水出口用のコネクタがある。また、ケーシング３の上面部３Ｔには、持ち運びを容易にするための取っ手３Ｈが設けられている。 The casing 3 has, for example, a substantially rectangular parallelepiped shape that accommodates the above-mentioned analytical instrument 2. An operation unit 4 for operating the analysis device 2 is provided on the front surface 3F of the casing 3, and the piping, wiring, power supply connectors 5, 6, etc. of the analysis device 2 are provided on the back surface 3R. Is provided. The connector 5 of the pipe includes, for example, a connector for a sample gas inlet, a connector for a calibration gas inlet, a connector for other gas inlets, a connector for an exhaust gas outlet, and a connector for a drain water outlet. Further, the upper surface portion 3T of the casing 3 is provided with a handle 3H for facilitating carrying.
　本実施形態の操作部４は、タッチパネル式ディスプレイであり、当該ディスプレイ上には、測定ボタン、校正ボタンなどの操作ボタンが表示されるとともに、各測定成分の濃度が表示される。また、操作部４は、ケーシング３の前面部３Ｆにおいて斜め上方を向いて設けられており、ユーザが操作部４を操作しやすくするとともに、表示内容を視認しやすくしている。なお、操作部４からの入力信号が、図示しない制御部に送られ、当該制御部が分析用機器２を制御することにより、ガス中の測定対象成分の濃度が制御されたり、分析用機器２の校正が実行されたりする。 The operation unit 4 of the present embodiment is a touch panel type display, and operation buttons such as measurement buttons and calibration buttons are displayed on the display, and the concentration of each measurement component is displayed. Further, the operation unit 4 is provided on the front surface portion 3F of the casing 3 so as to face diagonally upward, so that the user can easily operate the operation unit 4 and the displayed contents can be easily visually recognized. An input signal from the operation unit 4 is sent to a control unit (not shown), and the control unit controls the analysis device 2 to control the concentration of the component to be measured in the gas or the analysis device 2. Calibration is performed.
　ケーシング３の背面部３Ｒに設けられた配管のコネクタ５には、各成分の濃度測定に必要な酸化剤、除湿剤、吸着剤などの分析用機器２ｄが接続される。また、電源のコネクタ６には、外部電源からの電源ケーブル（不図示）が接続される。その他、背面部３Ｒには、例えば電子クーラ放熱用の冷却ファン７が設けられており、その他、信号伝送用（配線用）のコネクタ８、及び、可搬型ガス分析装置１００の電源スイッチ９も設けられている。 Analytical equipment 2d such as an oxidizing agent, a dehumidifying agent, and an adsorbent necessary for measuring the concentration of each component is connected to the connector 5 of the pipe provided on the back surface 3R of the casing 3. Further, a power cable (not shown) from an external power source is connected to the power connector 6. In addition, for example, a cooling fan 7 for heat dissipation of an electronic cooler is provided on the back surface 3R, a connector 8 for signal transmission (for wiring), and a power switch 9 for a portable gas analyzer 100 are also provided. Has been done.
　しかして、本実施形態の可搬型ガス分析装置１００は、図１～図３に示すように、ケーシング３の背面部３Ｒに設けられた防塵又は防滴用のリアカバー１０を有している。 Therefore, as shown in FIGS. 1 to 3, the portable gas analyzer 100 of the present embodiment has a dust-proof or drip-proof rear cover 10 provided on the back surface 3R of the casing 3.
　リアカバー１０は、コネクタ５、６、８、排気ファン７及び電源スイッチ９を覆うことによりそれらを防塵又は防滴するものである。その他、リアカバー１０は、ケーシング背面におけるケーシング部品嵌合部（例えば板金と板金とが重なっている部分）を防塵又は防滴するものでもある。そして、リアカバー１０は、ケーシング３の背面部３Ｒに対向するとともに背面部３Ｒとの間で隙間Ｓを形成している。本実施形態のリアカバー１０は、背面部３Ｒの略全体を覆うことにより、コネクタ５、６、８、排気ファン７及び電源スイッチ９を一括して覆うものである（図２参照）。なお、リアカバー１０の下辺部には、電源ケーブル等を外部に取り出すための切り欠き部１０ｋが形成されている。 The rear cover 10 covers the connectors 5, 6, 8, the exhaust fan 7, and the power switch 9, and is dust-proof or drip-proof. In addition, the rear cover 10 is also dust-proof or drip-proof for the casing component fitting portion (for example, the portion where the sheet metal overlaps with the sheet metal) on the back surface of the casing. The rear cover 10 faces the back surface portion 3R of the casing 3 and forms a gap S with the back surface portion 3R. The rear cover 10 of the present embodiment collectively covers the connectors 5, 6, 8, the exhaust fan 7, and the power switch 9 by covering substantially the entire back surface portion 3R (see FIG. 2). A notch 10k for taking out a power cable or the like to the outside is formed on the lower side of the rear cover 10.
　このリアカバー１０は、図３に示すように、カバーフレーム１１によってケーシング３の背面部３Ｒに取り付けられている。また、リアカバー１０は、カバーフレーム１１に対して例えばヒンジにより回転可能に取り付けられており、リアカバー１０が背面部３Ｒに対向して覆ったカバー位置Ｐと、リアカバー１０が背面部３Ｒを開放した開放位置Ｑとの間で移動可能に構成されている。 As shown in FIG. 3, the rear cover 10 is attached to the back surface portion 3R of the casing 3 by the cover frame 11. Further, the rear cover 10 is rotatably attached to the cover frame 11 by, for example, a hinge, and the cover position P covered by the rear cover 10 facing the back surface 3R and the rear cover 10 opening the back surface 3R are open. It is configured to be movable to and from the position Q.
　さらに、リアカバー１０に対してケーシング３側（リアカバー１０の内側）には、背面部３Ｒとリアカバー１０との間に浸入する水滴を受ける樋部１２が設けられている。この樋部１２は、カバーフレーム１１を用いて形成されている。 Further, on the casing 3 side (inside of the rear cover 10) with respect to the rear cover 10, a gutter portion 12 for receiving water droplets infiltrating between the back surface portion 3R and the rear cover 10 is provided. The gutter portion 12 is formed by using the cover frame 11.
　具体的に樋部１２は、図３及び図４に示すように、背面部３Ｒとリアカバー１０との上部の隙間から浸入する水滴を主として受けるものであり、背面部３Ｒの上辺部において左右に延びる横樋部１２１と、当該横樋部１２１に連続し、背面部３Ｒの左右側辺部において上下に延びる縦樋部１２２とを有している。この樋部１２は、例えば断面コの字状をなすものである。 Specifically, as shown in FIGS. 3 and 4, the gutter portion 12 mainly receives water droplets that infiltrate through the upper gap between the back surface portion 3R and the rear cover 10, and extends to the left and right on the upper side portion of the back surface portion 3R. It has a horizontal gutter portion 121 and a vertical gutter portion 122 that is continuous with the horizontal gutter portion 121 and extends vertically on the left and right side portions of the back surface portion 3R. The gutter portion 12 has, for example, a U-shaped cross section.
　さらに、リアカバー１０におけるケーシング３とは反対側の外面には、背面部３Ｒの左右に延びる１又は複数の凸条１０１が形成されている。この凸条１０１の上向き面は、下り勾配を有する傾斜面１０１ｘであり、本実施形態では、凸条１０１の縦断面形状は、概略三角形状をなしている。 Further, on the outer surface of the rear cover 10 opposite to the casing 3, one or a plurality of ridges 101 extending to the left and right of the back surface portion 3R are formed. The upward surface of the ridge 101 is an inclined surface 101x having a downward slope, and in the present embodiment, the vertical cross-sectional shape of the ridge 101 has a substantially triangular shape.
　さらに、リアカバー１０は、図５に示すように、樋部１２を流れた水を受け、樋部１２の下端部よりも下側に水を排水させる排出部１０２を有する。具体的に排出部１０２は、樋部１２の下端部（具体的には縦樋部１２２の下端部）の下側に位置した傾斜面１０２ｘであり、樋部１２からの水は、傾斜面１０２ｘに沿ってリアカバー１０の下端部に流れて、可搬型ガス分析装置１００の設置面に流れ落ちる。 Further, as shown in FIG. 5, the rear cover 10 has a discharge portion 102 that receives the water flowing through the gutter portion 12 and drains the water below the lower end portion of the gutter portion 12. Specifically, the discharge portion 102 is an inclined surface 102x located below the lower end portion of the gutter portion 12 (specifically, the lower end portion of the downspout portion 122), and the water from the gutter portion 12 is the inclined surface 102x. It flows to the lower end portion of the rear cover 10 along the above, and flows down to the installation surface of the portable gas analyzer 100.
　また、本実施形態では、図６に示すように、ケーシング３の左右側面部の少なくとも一方（本実施形態では両方）には、通気スリット３１が形成されており、本実施形態の可搬型ガス分析装置１００は、通気スリット３１を覆う防塵又は防滴用のサイドカバー１３をさらに有している。 Further, in the present embodiment, as shown in FIG. 6, a ventilation slit 31 is formed in at least one of the left and right side surface portions of the casing 3 (both in the present embodiment), and the portable gas analysis of the present embodiment is formed. The device 100 further includes a dust-proof or drip-proof side cover 13 that covers the ventilation slit 31.
　このサイドカバー１３は、通気スリット３１の上部と左右側部を隙間無く覆うとともに、通気スリット３１よりも下側に開口１３ｈを形成するものである。なお、本実施形態では、サイドカバー１３の更に外側には、ケーシング３に耐衝撃性を付与するための保護カバー（不図示）が設けられている。この耐衝撃性の保護カバーは、ケーシング３の左右側面部に対して、前後及び上下において開口している。その他、ケーシング３において、水の浸入が想定される部分には、シール部材を設けたり、ケーシング３の内部をコーキングすることにより、防塵又は防滴をしている。また、一部のシール部材には、ゴムなどのパッキンではなく、硬質プラスチックを使用している。メンテナンスでケーシング３を分解し、再度組み立てる際に、ゴムなどパッキンでは適正な位置でないと防水性が保てない可能性があるが、硬質プラスチックを用いることによりその心配なく防水性を保つことができる。 The side cover 13 covers the upper portion and the left and right side portions of the ventilation slit 31 without a gap, and forms an opening 13h below the ventilation slit 31. In this embodiment, a protective cover (not shown) for imparting impact resistance to the casing 3 is provided on the outer side of the side cover 13. The impact-resistant protective cover is open to the left and right side surface portions of the casing 3 in the front-rear direction and in the top-bottom direction. In addition, in the casing 3, a sealing member is provided at a portion where water is expected to enter, or the inside of the casing 3 is caulked to prevent dust or drip. In addition, hard plastic is used for some sealing members instead of packing such as rubber. When disassembling the casing 3 for maintenance and reassembling it, the waterproofness may not be maintained unless the packing such as rubber is in the proper position, but by using hard plastic, the waterproofness can be maintained without worrying about it. ..
　その上、ケーシング３は、図７に示すように、タッチパネル式ディスプレイ４の周囲を囲う枠部材３０１と、ケーシング本体３０２とを有している。そして、枠部材３０１の裏面には、タッチパネル式ディスプレイ４が露出する開口部を塞ぐように樹脂製の保護フィルム１４が設けられている。この保護フィルム１４は、タッチパネル式ディスプレイ４を固定した状態で、タッチパネル式ディスプレイ４の表面に密着する。そして、枠部材３０１は、ケーシング本体３０２の内部に設けられた構造材に固定されることによりケーシング本体３０２に組み立てられる。ここで、枠部材３０１においてケーシング本体３０２の外面に対向する内面には、例えばウレタンなどの樹脂製のシール部材１５が設けられている。この構成であれば、枠部材３０１及びシール部材１５は、ケーシング本体３０２の外側から着脱できるので、シール部材１５の性能を保ちつつ、メンテナンス性を向上させることができる。 Moreover, as shown in FIG. 7, the casing 3 has a frame member 301 surrounding the touch panel display 4 and a casing main body 302. A protective film 14 made of resin is provided on the back surface of the frame member 301 so as to close the opening where the touch panel display 4 is exposed. The protective film 14 is in close contact with the surface of the touch panel display 4 in a state where the touch panel display 4 is fixed. Then, the frame member 301 is assembled to the casing main body 302 by being fixed to the structural material provided inside the casing main body 302. Here, on the inner surface of the frame member 301 facing the outer surface of the casing main body 302, a resin sealing member 15 such as urethane is provided. With this configuration, the frame member 301 and the seal member 15 can be attached to and detached from the outside of the casing main body 302, so that the maintainability can be improved while maintaining the performance of the seal member 15.
＜２．本実施形態の効果＞
　このように構成した本実施形態の可搬型ガス分析装置１００によれば、ケーシング３の背面部３Ｒに対向してコネクタ５、６、８、冷却ファン７及び電源スイッチ９を覆うように防塵又は防滴用のリアカバー１０を設けているので、コネクタ５、６、８、冷却ファン７及び電源スイッチ９に対して防塵又は防滴を可能にすることができる。ここで、防塵又は防滴用のリアカバー１０が、背面部３Ｒとの間で隙間Ｓを形成しているので、当該隙間Ｓを介して熱のやり取りが行われるので、背面部３Ｒにおける放熱性を損なうこともない。 <2. Effect of this embodiment>
According to the portable gas analyzer 100 of the present embodiment configured in this way, the connectors 5, 6, 8 and the cooling fan 7 and the power switch 9 are covered with dustproof or proof so as to face the back surface 3R of the casing 3 and cover the connectors 5, 6, 8 and the power switch 9. Since the rear cover 10 for dripping is provided, it is possible to make the connectors 5, 6, 8 and the cooling fan 7 and the power switch 9 dust-proof or drip-proof. Here, since the dust-proof or drip-proof rear cover 10 forms a gap S with the back surface portion 3R, heat is exchanged through the gap S, so that heat dissipation in the back surface portion 3R is improved. There is no loss.
　樋部１２に関して言うと、リアカバー１０と背面部３Ｒとの間の隙間Ｓにおいて、雨などの水滴が入りやすい背面部３Ｒの上部に横樋部１２１を設けているので、水滴の浸入を好適に防ぐことができる。また、横樋部１２１に連続して縦樋部１２２を設けているので、横樋部１２１から流れる水で背面部３Ｒが濡れることを防ぎつつケーシング３の下部に流すことができる。 Regarding the gutter portion 12, in the gap S between the rear cover 10 and the back surface portion 3R, the horizontal gutter portion 121 is provided above the back surface portion 3R where water droplets such as rain easily enter, so that the intrusion of water droplets is suitably prevented. be able to. Further, since the vertical gutter portion 122 is continuously provided on the horizontal gutter portion 121, the water flowing from the horizontal gutter portion 121 can be allowed to flow to the lower part of the casing 3 while preventing the back surface portion 3R from getting wet.
　また、リアカバー１０が、樋部１２を流れた水を受け、樋部１２の下端部よりも下側に水を排水させる排出部１０２を有するので、樋部１２から流れる水によって背面部３Ｒなどのケーシング３が濡れることをより一層防ぐことができる。この排出部１０２により樋部１２からの水がケーシング３の下側に案内されるので、地面等で跳ね返る水の高さを低くすることができ、ケーシング３が濡れにくくなる。 Further, since the rear cover 10 has a discharge portion 102 that receives the water flowing through the gutter portion 12 and drains the water below the lower end portion of the gutter portion 12, the water flowing from the gutter portion 12 causes the back surface portion 3R and the like. It is possible to further prevent the casing 3 from getting wet. Since the water from the gutter portion 12 is guided to the lower side of the casing 3 by the discharge portion 102, the height of the water rebounding on the ground or the like can be lowered, and the casing 3 is less likely to get wet.
　リアカバー１０の外面に１又は複数の凸条１０１を形成し、当該凸条１０１の上向き面が下り勾配を有する傾斜面１０１ｘであることから、リアカバー１０の外面に付着した水の切れが良くなり、外観を良くすることができる。また、リアカバーの機械的強度を増すこともできる。 Since one or more ridges 101 are formed on the outer surface of the rear cover 10 and the upward surface of the ridges 101 is an inclined surface 101x having a downward slope, the water adhering to the outer surface of the rear cover 10 is drained well. The appearance can be improved. It is also possible to increase the mechanical strength of the rear cover.
＜３．その他の実施形態＞
　例えば、リアカバー１０の内面に設けられる樋部１２は、１つの横樋部１２１と２つの縦樋部１２２とを有する構成であったが、１つの横樋部１２１と当該１つの横樋部１２１の一端部に連続する１つの縦樋部１２２とを有する構成であっても良い。 <3. Other embodiments>
For example, the gutter portion 12 provided on the inner surface of the rear cover 10 has a configuration having one gutter portion 121 and two downspout portions 122, but one gutter portion 121 and one end portion of the one horizontal gutter portion 121. It may be configured to have one continuous downspout portion 122.
　また、前記実施形態のリアカバー１０は、左右に延びる凸条１０１を有する構成であったが、この凸条１０１を有さない構成であっても良い。さらにリアカバー１０の外面に撥水加工を施しても良い。放熱をさらに良くするため、アルミなどの材質の凸条を有しても良い。 Further, although the rear cover 10 of the above-described embodiment has a configuration having the ridges 101 extending to the left and right, it may be a configuration without the ridges 101. Further, the outer surface of the rear cover 10 may be water-repellent. In order to further improve heat dissipation, it may have ridges made of a material such as aluminum.
　その他、本発明の趣旨に反しない限りにおいて様々な実施形態の変形や組み合わせを行っても構わない。 In addition, various modifications and combinations may be made as long as it does not contradict the gist of the present invention.
　本発明によれば、放熱性を損なうことなく、背面部に設けられたコネクタの防塵又は防滴を可能にすることができる。 According to the present invention, it is possible to make the connector provided on the back surface dust-proof or drip-proof without impairing heat dissipation.

Claims (7)

  1. 　持ち運び可能な可搬型ガス分析装置であって、
    　ガスを分析するための分析用機器と、
    　前記分析用機器を収容し、前面部に前記分析用機器を操作するための操作部が設けられ、背面部に前記分析用機器の配管、配線又は電源のコネクタが設けられたケーシングと、
    　前記ケーシングの背面部に対向するとともに前記背面部との間で隙間を形成し、前記コネクタを覆う防塵又は防滴用のリアカバーとを備える、可搬型ガス分析装置。     It is a portable gas analyzer that can be carried around.
    Analytical equipment for analyzing gas and
    A casing that houses the analytical equipment, has an operating unit for operating the analytical equipment on the front surface, and has piping, wiring, or a power connector for the analytical equipment on the back surface.
    A portable gas analyzer comprising a dust-proof or drip-proof rear cover that faces the back surface portion of the casing and forms a gap between the back surface portion and covers the connector.
  2. 　前記リアカバーに対して前記ケーシング側には、前記背面部と前記リアカバーとの間に浸入する水滴を受ける樋部が設けられている、請求項１に記載の可搬型ガス分析装置。 The portable gas analyzer according to claim 1, wherein a gutter portion for receiving water droplets entering between the back surface portion and the rear cover portion is provided on the casing side with respect to the rear cover.
  3. 　前記樋部は、前記背面部の上部において左右に延びる横樋部と、当該横樋部に連続し、前記背面部の左右の少なくとも一方において上下に延びる縦樋部とを有する、請求項２に記載の可搬型ガス分析装置。 The second aspect of the present invention, wherein the gutter portion has a horizontal gutter portion extending to the left and right at the upper portion of the back surface portion, and a vertical gutter portion continuous to the horizontal gutter portion and extending vertically on at least one of the left and right sides of the back surface portion. Portable gas analyzer.
  4. 　前記リアカバーは、前記樋部を流れた水を受け、前記樋部の下端部よりも下側に水を排水させる排出部を有する、請求項２又は３に記載の可搬型ガス分析装置。 The portable gas analyzer according to claim 2 or 3, wherein the rear cover has a discharge portion that receives water flowing through the gutter portion and drains water below the lower end portion of the gutter portion.
  5. 　前記リアカバーにおける前記ケーシングとは反対側の外面には、前記背面部の左右に延びる１又は複数の凸条が形成されており、
    　前記凸条の上向き面は、下り勾配を有する傾斜面である、請求項１乃至４の何れか一項に記載の可搬型ガス分析装置。     On the outer surface of the rear cover opposite to the casing, one or a plurality of ridges extending to the left and right of the back surface portion are formed.
    The portable gas analyzer according to any one of claims 1 to 4, wherein the upward surface of the ridge is an inclined surface having a downward slope.
  6. 　前記ケーシングの左右側面部の少なくとも一方には、通気スリットが形成されており、
    　前記通気スリットを覆う防塵又は防滴用のサイドカバーをさらに有し、
    　前記サイドカバーは、前記通気スリットの上部と左右側部を隙間無く覆うとともに、前記通気スリットよりも下側に開口を形成する、請求項１乃至５の何れか一項に記載の可搬型ガス分析装置。     Ventilation slits are formed on at least one of the left and right side surface portions of the casing.
    Further having a dustproof or drip-proof side cover covering the ventilation slit,
    The portable gas analysis according to any one of claims 1 to 5, wherein the side cover covers the upper portion and the left and right side portions of the ventilation slit without a gap and forms an opening below the ventilation slit. Device.
  7. 　前記操作部は、タッチパネル式ディスプレイであり、
    　前記ケーシングは、前記タッチパネル式ディスプレイの周囲を囲う枠部材を有し、
    　前記枠部材の裏面には、前記タッチパネル式ディスプレイが露出する開口部を塞ぐように保護フィルムが設けられている、請求項１乃至６の何れか一項に記載の可搬型ガス分析装置。     The operation unit is a touch panel type display.
    The casing has a frame member that surrounds the touch panel display.
    The portable gas analyzer according to any one of claims 1 to 6, wherein a protective film is provided on the back surface of the frame member so as to close the opening where the touch panel display is exposed.
PCT/JP2021/031138 2020-09-30 2021-08-25 Portable gas analysis device WO2022070693A1 (en)

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CN210514239U (en) * 2019-07-24 2020-05-12 嘉兴朗坤检测有限公司 Portable flue gas analyzer
JP2020144080A (en) * 2019-03-08 2020-09-10 日本電波工業株式会社 Portable gas analyzer

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JP2005003470A (en) 2003-06-11 2005-01-06 Horiba Ltd Device with function of ventilation
JP2012189549A (en) 2011-03-14 2012-10-04 Horiba Ltd Analyzer

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020144080A (en) * 2019-03-08 2020-09-10 日本電波工業株式会社 Portable gas analyzer
CN210514239U (en) * 2019-07-24 2020-05-12 嘉兴朗坤检测有限公司 Portable flue gas analyzer

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