JP5178124B2 - Moisture absorption device - Google Patents

Description

  The present invention relates to a hygroscopic device suitable for use in an aircraft or an electronic device installed on the ground, and particularly relates to a hygroscopic device provided with a hygroscopic material so that the hygroscopic material can be recycled.

  Conventionally, as this type of moisture absorption device, in order to obtain a waterproof / ventilating function, for example, the antenna device provided on the outer wall of the aircraft has both waterproof properties and air permeability without deteriorating the electrical characteristics. Things are in practical use.

  This moisture absorption device is intended to remove in advance the moisture contained in the air by entering the in-flight air in an environment where the aircraft is in a negative pressure especially during ascending.

  An example of this type of moisture absorption device is shown in FIG. 10 (see Patent Document 1).

  In the moisture absorption device 1, for example, an antenna device 3 is provided on a wall body 2 of an aircraft, and a radome 4 that protects from outside air is provided outside the antenna device 3. The wall 2 includes a wall 2 formed by the radome 4 and a space surrounded by the radome 4 (hereinafter referred to as the “outside space”). A space surrounded by the wall 2 from the s1 side (hereinafter referred to as the “inside space”). A vent hole 5 leading to s2 is formed. The vent hole 5 is formed with a large diameter portion 5a at an intermediate portion of the vent hole 5. The large diameter portion 5a has a waterproof property such as Gore-Tex (registered trademark) (Gore-Tex (hereinafter the same)). And the waterproof ventilation member 6 which has air permeability is provided.

  In the moisture absorption device 1 configured as described above, when the aircraft equipped with the moisture absorption device 1 rises, the outboard space s1 in the radome 4 is temporarily in a negative pressure state as compared to the inboard space s2. The air a in the inner space s2 passes through the waterproof ventilation member 6 and flows out to the aircraft outer space s1 side as indicated by a solid line arrow. Then, when the air inside the machine flows out to the outside of the machine along the direction of arrow a, the air pressure in the outside space s1 and the inside space s2 becomes substantially equal, and almost no differential pressure is generated between the inside and outside of the machine.

  On the other hand, when the aircraft descends, the air pressure in the outboard space s1 gradually increases, the air pressure in the inboard space s2 becomes a relatively negative pressure state, and the air in the outboard space s1 is waterproofed as indicated by a dotted arrow b. The air flows back to the machine interior space s2 through the ventilation member 6.

  Accordingly, the in-machine space s2 is temporarily in a negative pressure state, or the air pressure in the in-machine space s1 and the in-machine space s2 is substantially equal due to the inflow of the air a 'in the in-machine space s2. Thus, almost no differential pressure is generated. For this reason, there is no possibility that the antenna device 3 may be crushed by the external pressure.

Further, when the outside of the machine is in a negative pressure state, water droplets (not shown) contained in the air in the process of the air in the machine interior space s2 flowing out from the machine interior space s2 to the machine outside space s1 To prevent intrusion into the antenna device 3 on the outside of the machine.
JP-A-9-223911

  However, according to the conventional moisture absorbing device, when the waterproof ventilation member 6 sufficiently absorbs moisture, the waterproof ventilation member 6 is not reproducible, and must be replaced at the time of landing such as when checking the aircraft. Further, since it cannot be replaced during use, a sufficient moisture absorption effect cannot be obtained, and the mounted electronic device is likely to fail.

  The present invention has been made in view of the above circumstances, and it is in a structure such as an aircraft equipped with an electronic device such as an antenna device. An object of the present invention is to provide a hygroscopic device provided so as not to adversely affect the device.

To achieve the above object, according to the present invention, a wall body on which an electronic device is installed, a device storage container provided on the wall body so as to cover the electronic device , A box-like body provided on the wall body, provided inside the inner container partitioned into an intake chamber and an exhaust chamber by a partition wall, and penetrating the partition wall in the inner container, A moisture absorber that dehumidifies the air in the intake chamber and discharges the air into the exhaust chamber. The moisture absorber is provided in the exhaust chamber, and is provided in the exhaust chamber. A radial hygroscopic body arranged radially about an axis, and the radial hygroscopic body is configured such that the shaft is driven by a motor to rotate. An outside air inlet communicating with the intake chamber, the outside of the wall body and the exhaust. A hygroscopic air outlet that communicates with the interior of the room, an air inlet that communicates with the interior of the equipment storage container, which is the space inside the equipment storage container and outside the middle container, and the air intake room, and communication with the equipment storage container space and the exhaust air chamber A first on-off valve for controlling communication between the exhaust air outlet, communication with the outside air introduction port, a second on-off valve for controlling communication with the hygroscopic air discharge port, and a third on-off valve for controlling communication with the intake port A valve and a fourth on-off valve for controlling communication of the exhaust port, and the first on-off valve and the second on-off valve are closed when the air in the device storage container space is dried. In this state, the third on-off valve and the fourth on-off valve are opened, and when the radial moisture absorber is dried, the third on-off valve and the fourth on-off valve are closed. It is controlled that as with the first on-off valve and the second on-off valve is opened in a state Providing moisture absorption apparatus characterized.

  According to the present invention, in an aircraft or the like equipped with an electronic device such as an antenna device, the device can be used with good influence on the operation of the electronic device that does not remove moisture and moisture. It is possible to provide a hygroscopic device that enables recycling of the hygroscopic agent.

[First Embodiment]
A first embodiment of a moisture absorption device according to the present invention will be described with reference to the accompanying drawings (FIGS. 1 to 5).

  FIG. 1 is a longitudinal sectional side view of an essential part showing a first embodiment of a hygroscopic device 10 of the present invention. FIG. 2 is a perspective view showing an appearance image of the moisture absorber 14 of the moisture absorber assembly 13 of FIG. FIG. 3 is a side view of the moisture absorber 14 showing an air flow path for the moisture absorber 14 shown in FIG. 2. 4 is an enlarged perspective view of the hygroscopic sheet 20 of the gear-shaped hygroscopic body 15 of the hygroscopic device 14 shown in FIG.

  A moisture absorbing device 10 shown in FIG. 1 is a wall 11 that is an attached body, for example, an electronic device P for an aircraft, and a device storage container 12 that is provided on the wall 11 so as to cover the electronic device P. And a hygroscopic assembly 13 serving as a hygroscopic device body that is provided in the device storage container 12 and attached to the wall 11 and absorbs moisture from the indoor air a in the device storage container 12.

  The indoor air a is a mixture of dry air a1 which is outside air and moisture absorption air a2 absorbed in the electronic device room x.

  The device storage container 12 is provided so as to cover, for example, an electronic device P (shown by a dotted line) attached to the wall 11 of the aircraft.

  The equipment storage container 12 is provided with an electronic equipment room x so as to cover the electronic equipment P attached to the wall body 11. In addition, the electronic device room x is maintained at a predetermined humidity so that the electronic device P operates normally without failure.

  An inside container 18 is provided in the equipment storage container 12 in order to keep initially retained air (a mixture of outdoor air and dry air) a below a predetermined humidity.

  The hygroscopic assembly 13 is provided with an intermediate container 18 so that the indoor air a in the device storage container 12 can be circulated. The middle container 18 is provided with an intake port 18a and an exhaust port 18b so as to circulate air from the electronic device chamber x to the intake chamber y and the exhaust chamber z.

  In the middle container 18, a hygroscopic device 14 provided integrally with the indoor air suction portion 16 and the gear-shaped hygroscopic body 15 is provided at the center.

  Further, the middle container 18 is provided with an intake chamber y for taking in the indoor air suction portion 16 of the hygroscopic device 14 and an exhaust chamber z for taking up the gear-like hygroscopic body 15. An outside air introduction port 11b and a first on-off valve 11d for opening and closing the introduction port 11b are provided at the bottom of the intake chamber y. The first on-off valve 11d is opened during the initial operation of the hygroscopic device 10, and the outdoor air b is taken in. Further, the hygroscopic air discharge port 11c is provided with a second openable / closable valve 11e as a hygroscopic air discharge means. The hygroscopic air circulated in the device storage container 12 by the hygroscopic device 14 and absorbed moisture. When the moisture absorber 14 is dehumidified, the second on-off valve 11e is opened, and the outside air introduction port 11b and the moisture absorption air discharge port 11c are closed during normal operation of the moisture absorber 14.

  The intake port 18a provided in the intake chamber y of the middle container 18 is provided with a third on-off valve 18c for opening and closing the intake port 18a on the side wall of the exhaust chamber z. The exhaust port 18b is provided with a fourth on-off valve 18d for opening and closing the exhaust port 18b. Further, when the third on-off valve 18c and the fourth on-off valve 18d are open, the air a circulated from the electronic device chamber x circulates endlessly in the intake chamber y and the exhaust chamber z. It has become.

  Then, this circulation is repeated until the moisture content of the air a decreases and the humidity becomes, for example, 20% RH or less. That is, in order to operate the electronic device room x normally without failure in an environment of a predetermined humidity, for example, 20% RH or less in the electronic device room x, the humidity in the ceiling portion of the device storage container 12 is provided. A sensor H is provided so that a desired humidity can be maintained.

  Further, the wall body 11 is provided with a moisture absorption air discharge port 11 c at the bottom of the exhaust chamber z of the moisture absorber assembly 13.

  The middle container 18 is provided with a hygroscopic device 14 that dries the air a in the device storage container 12 as desired to generate dry air a1, and conversely generates hygroscopic air a2. The hygroscopic air a2 generated by the hygroscopic device 14 can be discharged to the outside from the hygroscopic air discharge port 11c.

  The gear-shaped hygroscopic body 15 is formed by combining a plurality of moisture absorbing sheets 20 and is provided by arranging a plurality of moisture absorbing sheets 20 radially as shown in FIG. The gear-shaped hygroscopic body 15 is provided with a partition wall 17 at the center so as to divide the device storage container 12 into two. The partition wall 17 is attached so that the indoor air suction portion 16 is positioned on the intake chamber y side, and the gear-shaped moisture absorber 15 is positioned on the exhaust chamber z.

  The indoor air suction part 16 is composed of an air introduction port 16a provided at the tip part thereof, a blower 16b that raises wind and blows air toward the gear-shaped moisture absorber 15 side, and a wind guide tube part 16c that guides the blown air. The When the hygroscopic device 14 is operated, wind is blown toward the gear-shaped hygroscopic body 15 so as to generate moisture-absorbing air a2 containing moisture.

  An outside air introduction port 11b is provided on a wall surface 11a on the intake chamber y side provided on the wall body 11 side. The outside air inlet 11b and the hygroscopic air outlet 11c are provided with a first on-off valve 11d and a second on-off valve 11e that open and close the respective openings.

  Next, the moisture absorber 14 will be described more specifically.

  The hygroscopic device 14 is provided so as to partition the inside of the container into an intake chamber y side and an exhaust chamber z side.

  As shown in FIG. 2, the hygroscopic device 14 is provided with a blower 16b in the vicinity of the air inlet 16a of the indoor air suction portion 16 and a wind guide tube portion 16c connected to the blower 16b.

  Further, as shown in FIG. 3, the hygroscopic device 14 includes a plurality of hygroscopic sheets 20 that are integrally arranged in a radial manner, and the indoor air suction portion 16 is formed on one side and the other side is formed in a cylindrical shape. A gear-shaped hygroscopic body 15 is provided.

  Further, the plurality of moisture absorbing sheets 20 are respectively arranged radially, and are formed by combining two single-sided moisture absorbing sheets 20a and 20b and sandwiching the nichrome wire 21 and polymerizing them as shown in FIG. In addition, as shown in FIG. 4, the plurality of moisture absorbing sheets 20 are provided with a plurality of through holes 20 c to increase the surface area, thereby increasing the efficiency of moisture absorption.

  Next, the effect | action of the moisture absorption apparatus 10 is demonstrated.

  When the aircraft flies, the electronic device P in the device storage container 12 is activated. The air a in the original device storage container 12 is in a state containing a predetermined moisture (moisture), but when the humidity of the air a becomes 20% RH or more, for example, the humidity sensor H is activated to store the device. The moisture absorber 14 controls the humidity in the container 12 to be 20% RH or less.

  The control of the hygroscopic device 14 will be described below.

  The outside air inlet 11b and the hygroscopic air outlet 11c of the aircraft wall 11a are moved to the positions indicated by the solid lines by the first on-off valve 11d and the second on-off valve 11e, respectively, and are closed. On the other hand, the intake port 18a and the exhaust port 18b of the middle container 18 are opened by moving the third on-off valve 18c and the fourth on-off valve 18d to the positions indicated by solid lines, respectively. In this state, when the electronic device P is activated as the aircraft engine is started, the moisture absorber 14 is simultaneously activated, for example. When the hygroscopic device 14 is actuated, as shown in FIG. 2, the blower 16b of the indoor air suction portion 16 is actuated, and air a is sucked into the intake chamber y from the intake port 18a.

  The air a sucked into the intake chamber y enters the indoor air suction section 16 and blows the wind generated by the blower 16b to the gear-shaped moisture absorber 15. As shown in FIG. 3, the air a blown to the gear-shaped moisture absorbent 15 enters the gaps between the plurality of moisture absorbent sheets 20 to absorb moisture, and is generated as dry air a1.

  The blower 16b continues to operate until the humidity of the dry air a1 becomes 20% RH or less. The dry air a1 that has become 20% RH or less is discharged as indicated by an arrow in FIG. 3, and is discharged toward the electronic device room x as shown in FIG. By repeating this, the inside of the electronic device room x becomes an environment filled with the dry air a1. Therefore, the humidity in the electronic device room x is maintained as desired, and the operating environment of the electronic device P is well maintained. Here, in order to maintain the operating environment of the electronic device P well, for example, the humidity of the dry air a1 is set to 20% RH or less, for example, but may be appropriately changed depending on the operating characteristics of the electronic device P.

  Next, when used for a long time, moisture at the moisture absorption limit is adsorbed to the moisture absorbent sheet 20 of the moisture absorber 14. Therefore, this time, the second on-off valve 11e of the hygroscopic air discharge port 11c of the wall 11 is opened, and the third on-off valve 18c and the fourth on-off valve 18d of the intake port 18a and the exhaust port 18b of the middle container 18 are opened. Close. When the moisture absorber 14 is operated, moisture is blown off by the wind from the plurality of moisture absorbing sheets 20 of the gear-shaped moisture absorber 15 that has absorbed moisture to become moisture-absorbed air a2 and is released from the internal air discharge port 11c to the outside.

  Here, when the hygroscopic air a2 is discharged from the internal air discharge port 11c to the outside, if the operating efficiency of the blower 16b of the indoor air suction portion 16 decreases if the inflowing dry air a1 is insufficient, the first The open / close valve 11d may be opened to allow outside air to enter.

  As described above, the moisture is released from the plurality of moisture absorbing sheets 20 to the outside, so that the plurality of moisture absorbing sheets 20 are gradually dried and become reusable. Therefore, this time, when the internal air discharge port 11c is closed and the third opening / closing valve 18c and the fourth opening / closing valve 18d of the moisture absorber assembly 13 are opened, the operating state in which the moisture absorber 14 functions as the original function is obtained. Return to.

  Next, when the hygroscopic device 14 is activated, the electronic device room x is placed in a predetermined dry environment, so that the electronic device P can be operated without any trouble.

  In addition, although the air blower 16b is used as the above-mentioned hygroscopic device 14 forcibly blowing air, the hygroscopic device 25 as shown in FIG. 5 can be used.

FIG. 5 is a partially cutaway perspective view showing another embodiment of the hygroscopic device shown in FIG. 3. Moisture absorption apparatus shown in FIG. 5. 25, Ru several hygroscopic sheet 26 is rotationally driven via the transmission gear 28 in the arrow direction to the motor drive shaft (not shown) by a motor 27.

  That is, most of the moisture absorber 25 is provided on the exhaust chamber z side of the moisture absorber assembly 13, and the air a introduced from the air introduction port 25a is shaken off on the intake chamber y side or the exhaust chamber z side to the outside. It can be made to release.

  Moreover, although the moisture absorbing sheets 20 and 26 described above are provided by polymerizing the single-sided moisture absorbing sheets 20a and 20b as shown in FIG. 4, they may be manufactured integrally by a mold manufacturing method. Further, although the nichrome wire 21 is used as the electric heater for the single-sided moisture absorbing sheets 20a and 20b, a sheet-like sheet heater such as a surface heater (not shown) can be adopted to make the moisture absorbing sheet 26 thinner. .

[Second Embodiment]
Next, 2nd Embodiment of the moisture absorption apparatus concerning this invention is described with reference to FIGS. 6-9 which attached | subjected the same code | symbol to the same part as FIGS. 1-3.

  FIG. 6: is a principal part vertical side view which shows one use aspect in 2nd Embodiment (10A of moisture absorption apparatuses) of the moisture absorption apparatus of this invention.

  The hygroscopic assembly 13 shown in the hygroscopic device 10A shown in FIG. 6 has a configuration in which a new hygroscopic assembly 13 is provided as shown in FIG.

  The hygroscopic assembly 13 includes a fifth on-off valve 30 newly provided on the partition wall 17 that partitions the intake chamber y side and the exhaust chamber z side, and a dehumidifier 31 provided in the exhaust chamber z. .

  The dehumidifying device 31 includes a dehumidifying chamber 31a and a cooler 32 provided in the dehumidifying chamber 31a. The dehumidifying chamber 31a is provided with a sixth opening / closing valve 31b on the chamber wall, and the bottom of the dehumidifying chamber 31a is connected to the hygroscopic air discharge port 11c provided in the exhaust chamber z.

  The other configuration is the same as the configuration of the first embodiment shown in FIG.

  Next, the operation of the moisture absorption device 10A will be described with reference to FIGS.

  The state of the hygroscopic assembly 13 shown in the hygroscopic device 10A shown in FIG. 6 indicates a state during normal operation.

  In this state, the outdoor air b sucked into the device storage container 12 of the hygroscopic assembly 13 circulates in the electronic device chamber x, and the indoor air a that has absorbed heat radiated from the electronic device P is discharged to the outside. It is. In this operating state, when the indoor air a reaches a predetermined management temperature threshold value, the temperature sensor H acts to dehumidify the moisture absorber 14 as shown in FIG.

  In this dehumidification, only the fifth on-off valve 30 and the sixth on-off valve 31b are opened, the other valves are closed, and the hygroscopic device 14 is operated. Then, the blower 16b of the indoor air suction part 16 of the moisture absorber 14 is actuated to shake off moisture from the gear-like moisture absorption part 15, and the moisture absorption air a2 thus shaken flows into the dehumidification chamber 31a of the dehumidifier 31. .

  At this time, if the nichrome wire provided on the hygroscopic sheet 20 of the gear-shaped hygroscopic portion 15 of the hygroscopic device 14 is operated, moisture is heated and the evaporation effect is good, so that it can be applied as necessary. The hygroscopic air a <b> 2 that has flowed into the dehumidifying chamber 31 a is cooled by the cooler 32, and moisture adheres to the surface of the cooler 32.

  Next, as shown in FIG. 8, while the sixth on-off valve 31b is closed, the second on-off valve 11e is opened, so that moisture attached to the cooler 32 becomes water droplets (not shown). It falls and is discharged to the outside through the hygroscopic air discharge port 11c.

  Note that a dehumidification heater for forced heating (not shown) may be provided in order to quickly form moisture on the cooler 32 as water droplets.

  Subsequently, as shown in FIG. 9, only the third opening / closing valve 18 c of the intake chamber y and the fourth opening / closing valve 18 d of the exhaust chamber z are opened, while the moisture absorber 14 is operated, thereby Dehumidify.

  Since other operations are the same as those of the first embodiment of the moisture absorbing device 10 described above, description thereof is omitted.

  Therefore, since the electronic device room x is placed in a predetermined dry environment by the operation of the moisture absorption device 10, the electronic device P can be operated without any trouble.

The principal part vertical side view which shows 1st Embodiment of the moisture absorption apparatus of this invention. The perspective view which shows the external appearance image of the moisture absorber of the moisture absorber assembly of FIG. The side view of the moisture absorber which shows the flow path of the air with respect to the moisture absorber shown in FIG. The expansion perspective view of the moisture absorption sheet of the gear-shaped moisture absorber of the moisture absorber shown in FIG. The partially cutaway perspective view showing another embodiment of the hygroscopic device shown in FIG. The principal part vertical side view which shows the usage condition of the moisture absorber assembly in 2nd Embodiment of the moisture absorption apparatus of this invention. The figure which shows the other usage condition of the moisture absorber assembly shown in FIG. The figure which shows the further another usage condition of the moisture absorber assembly shown in FIG. The figure which shows the further another usage condition of the moisture absorber assembly shown in FIG. Sectional drawing which shows the principal part which shows the conventional moisture absorption apparatus.

Explanation of symbols

10, 10A Hygroscopic device 11 Wall body 11a Wall surface 11b Outside air introduction port 11c Hygroscopic air discharge port 11d First on-off valve 11e Second on-off valve (hygroscopic air discharge means)
12 Equipment storage container 13 Hygroscopic assembly (hygroscopic device body)
14, 25 Moisture absorber 15 Gear-shaped hygroscopic body 16 Indoor air suction part 16a, 25a Air inlet 16b Blower 16c Wind guide tube part 17 Partition wall 18 Middle container 18a Inlet 18b Exhaust outlet 18c Third on-off valve 18d Open / close valve 20, 26 Hygroscopic sheet 20a, 20b Single-sided hygroscopic sheet 20c Through hole 21 Nichrome wire 27 Motor 28 Transmission gear 30 Fifth open / close valve 31 Dehumidifier 31a Dehumidifier chamber 31b Sixth open / close valve 32 Cooler a Indoor air a1 Dry Air a2 Hygroscopic air b Outdoor air P Electronic equipment H Humidity sensor x Electronic equipment room y Intake room z Exhaust room

Claims (6)

A wall on which electronic equipment is installed;
And equipment storage container provided to cover the electronic device to the wall member,
A box-like body provided on the wall body in this equipment storage container, an inner container having an interior partitioned into an intake chamber and an exhaust chamber by a partition wall ;
A moisture absorber provided so as to penetrate through the partition wall in the middle container, and dehumidifying the air in the intake chamber and discharging it to the exhaust chamber;
The hygroscopic device includes an indoor air suction portion provided in the intake chamber, and a radial hygroscopic body provided in the exhaust chamber and having a plurality of hygroscopic sheets arranged radially about an axis,
The radial hygroscopic body is configured such that the shaft rotates by being driven by a motor,
The middle container includes an outside air introduction port communicating with the outside of the wall body and the intake chamber, a hygroscopic air discharge port communicating with the outside of the wall body and the exhaust chamber, and a space inside the device storage container and outside the middle container. An intake port that communicates with a device storage container space and an intake chamber, an exhaust port that communicates with the device storage container space and an exhaust chamber, a first on-off valve that controls communication between the outside air introduction port, and the moisture absorption A second on-off valve for controlling communication of the air outlet, a third on-off valve for controlling communication of the intake port, and a fourth on-off valve for controlling communication of the exhaust port;
When the air in the device storage container space is dried, the third on-off valve and the fourth on-off valve are opened while the first on-off valve and the second on-off valve are closed. At the same time, when the radial hygroscopic body is dried, the first on-off valve and the second on-off valve are opened while the third on-off valve and the fourth on-off valve are closed. A moisture absorption device that is controlled . The exhaust chamber is provided with a cooler, and moisture contained in the hygroscopic air is attached to the cooler surface to form liquid water and then discharged to the outside through the exhaust port. moisture apparatus of claim 1,. The moisture sheet moisture apparatus of claim 1 or 2, characterized in that provided by laminating one surface moisture sheet. Wherein the moisture absorption sheet moisture absorption device according to any one of claims 1 to 3, wherein a plurality of through holes are provided. Wherein the moisture absorption sheet moisture absorption device according to any one of claims 1 to 4, characterized in that the nichrome wire is arranged. The moisture absorption device according to claim 5 , wherein the nichrome wire is provided by being sandwiched between moisture absorption sheets on one side of a plurality of moisture absorption sheets.

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