Container for missile and missile
By dividing the container into regions with and without a heat absorbing layer, the container directs condensation to occur in a manageable area, reducing the risk of water damage and maintaining visibility.
Patent Information
- Application Number
- JP2023188820
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-11-02
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2043-11-02
AI Technical Summary
Condensation in flying object containers leads to water droplets forming and potentially causing inconvenience by wetting nearby objects and reducing visibility through windows.
A container divided into a first region covered with a heat absorbing layer and a second region without the heat absorbing layer, where the heat absorbing layer absorbs radiant heat from the sun at a higher rate than the container body, causing condensation to occur in the second region.
This design reduces the inconvenience caused by condensation by directing it to occur in the second region, where measures can be taken to manage the water, thus preventing nearby objects from getting wet and maintaining visibility through windows.
Smart Images

Figure 2025076882000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to a container for a projectile. [Background technology]
[0002] Many flying objects that fly by buoyancy, such as balloons and airships, and many flying objects that fly by lift, such as airplanes and helicopters, are equipped with a container (vessel for the flying object) for accommodating transported objects (including people). For example, a flying object that transports passengers is equipped with a passenger container called a passenger ship or cabin.
[0003] In the process of a flying object rising from the ground, the higher the flying object's altitude, the lower the outside air temperature of the flying object's container. The wall of the flying object's container loses heat to the cold air in contact with the outside, and its temperature drops. Then, the air inside the flying object's container that is in contact with the cold wall from the inside is cooled by the wall, and the water vapor in the air turns into water and adheres to the inside of the wall as water droplets, a phenomenon known as condensation.
[0004] When condensation occurs in the container of the flying object, for example, water droplets generated by the condensation may run down and wet nearby objects. Also, when condensation occurs on the window of the container of the flying object, there are places where visibility through the window is impaired.
[0005] Patent Document 1, for example, is an example of a patent document disclosing a technique for solving the above problems. Patent Document 1 describes a container for a flying object that has a first portion having a higher thermal conductivity than a portion constituting the inner surface of the container body and exposed to the inside of the container body, a second portion exposed to the outside of the container body, and a third portion connected to each of the first portion and the second portion, and is equipped with a condensation promotion member that is a member that causes condensation to occur faster inside the container body than on the inner surface of the container body when water vapor condenses inside the container body.
[0006] According to the container described in Patent Document 1, when the second member exposed to the outside of the container body is cooled by the outside air, the first part exposed to the inside of the container body is cooled through the third part and becomes colder than the air in the container body. At that time, since the first part becomes colder earlier than the inside surface of the container body, when condensation occurs, condensation occurs first in the first part, and the humidity of the air inside the container body decreases, so that condensation is unlikely to occur on the inside surface of the container body (parts other than the first part) which becomes colder later than the first part. Therefore, by taking measures such as storing the water generated by condensation in the first part in a water collection container, it is possible to avoid nearby objects getting wet and visibility through the window becoming poor. [Prior art documents] [Patent documents]
[0007] [Patent Document 1] Patent No. 7071770 Summary of the Invention [Problem to be solved by the invention]
[0008] The present invention is based on a technical concept different from that of the invention described in Patent Document 1 and proposes a means for reducing the inconvenience caused by condensation in the container of a flying object. [Means for solving the problem]
[0009] The present invention proposes a container provided with a flying object, comprising an airtight container body for containing an object, the container body being divided into a first region and a second region, and comprising a heat absorption layer that covers the first region but does not cover the second region, and that absorbs radiant heat from the sun with a higher absorption rate than the container body. Effect of the Invention
[0010] According to the container of the present invention, the first region covered with the heat absorbing layer absorbs more radiant heat from the sun than the second region not covered with the heat absorbing layer and becomes hotter than the second region, so condensation is more likely to occur in the relatively cooler second region and less likely to occur in the first region. As a result, by taking measures against condensation occurring in the second region, it is possible to reduce inconveniences caused by condensation. [Brief description of the drawings]
[0011] [Figure 1] FIG. 1 is a diagram showing an overall configuration of a flying object according to an embodiment. [Diagram 2] FIG. 2 is a diagram showing the appearance of a container according to an embodiment. [Diagram 3] FIG. 2 is a cross-sectional view of a container according to one embodiment. [Figure 4] FIG. 2 is a cross-sectional view of a container according to one embodiment. [Diagram 5] FIG. 13 is a diagram showing a container according to a modified example. [Figure 6] FIG. 1 shows a container according to a modified example. [Figure 7] FIG. 1 shows a container according to a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0012] [Embodiment] 1 is a diagram showing the overall configuration of a flying object 1 according to one embodiment of the present invention. The flying object 1 includes an air envelope 11, a sling 12, and a container 13.
[0013] The air envelope 11 contains a gas that is lighter than air, such as helium gas, and generates buoyancy in the air.
[0014] The suspending rope 12 is a plurality of ropes (four ropes in the example of FIG. 1) that serve to suspend the container 13 below the air bag 11.
[0015] The container 13 is a container for storing objects (which may include people) that are transported into the sky by the flight of the flying object 1.
[0016] Fig. 2 is a diagram showing the appearance of the container 13. Fig. 2(A) is a diagram showing the container 13 as viewed from the front, and Fig. 2(B) is a diagram showing the container 13 as viewed from the back. Fig. 3 is a cross-sectional view of the container 13 cut along a horizontal plane at the position shown by the dashed line in Fig. 2(A) and viewed in the direction shown by the arrow X in Fig. 2(A). Fig. 4 is a cross-sectional view of the container 13 cut along a vertical plane at the position shown by the dashed line in Fig. 2(A) and viewed in the direction shown by the arrow Y in Fig. 2(A).
[0017] 3 and 4, objects (which may include people) contained in the container 13 are omitted from the illustration.
[0018] The container 13 comprises an airtight container body 131 for containing the contents, a heat absorbing layer 132 covering a first region A1 of the container body 131, a heat conductive portion 133 extending from the first region A1 located around a window 1312 of the container body 131 to the window 1312, and a water collection container 134 for containing water generated by condensation in the second region A2 of the container body 131.
[0019] The container body 131 includes a wall 1311 , a window 1312 , and a hatch 1313 .
[0020] The wall 1311 is a curved plate-like component that does not transmit visible light and occupies most of the container body 131. The wall 1311 is generally divided into a cylindrical side wall portion, a hemispherical ceiling portion that covers an upper opening of the side wall portion, and a hemispherical bottom portion that covers a lower opening of the side wall portion. The side wall portion of the wall 1311 is provided with a hole that is covered by a window 1312. The ceiling portion of the wall 1311 is also provided with a hole that is covered by a hatch 1313. Desirable materials for the wall 1311 include, for example, plastics such as fiber-reinforced plastic, light metals such as aluminum, and combinations thereof.
[0021] The window 1312 is a curved plate-like component that transmits visible light and is attached to the wall 1311 so as to cover a hole provided in a side wall of the wall 1311. The window 1312 is provided so that a person accommodated in the internal space of the container body 131 can view the external space and so that an imaging device accommodated in the internal space of the container body 131 can capture an image of the external space. Preferred materials for the window 1312 include, for example, transparent plastics such as polycarbonate.
[0022] The hatch 1313 is a curved plate-like component that does not transmit visible light and is attached to the wall 1311 so as to cover a hole provided in the ceiling of the wall 1311. The hatch 1313 is attached to the wall 1311 so as to be openable and closable by a mechanism such as a hinge. The hatch 1313 is normally closed, but is opened when putting contents into or taking out contents from the container body 131. Desirable materials for the hatch 1313 include, for example, fiber-reinforced plastic, transparent plastic such as polycarbonate, light metal such as aluminum, and combinations thereof.
[0023] The container body 131 is divided into a first area A1 covered with the heat absorbing layer 132 and a second area A2 not covered with the heat absorbing layer 132. The first area A1 includes a portion of the wall 1311 and the entire area of the hatch 1313. The second area A2 includes a portion of the wall 1311 and the entire area of the window 1312.
[0024] The heat absorption layer 132 is a layer of a material that has a higher absorption rate of radiant heat from the sun than the container body 131. Therefore, when the container 13 is exposed to sunlight, a part of the wall 1311 and the hatch 1313 included in the first area A1 that are covered with the heat absorption layer 132 become hotter than a part of the wall 1311 and the window 1312 included in the second area A2 that are not covered with the heat absorption layer 132. In other words, in an environment where the container 13 is exposed to sunlight, the part of the wall 1311 and the window 1312 included in the second area A2 that are not covered with the heat absorption layer 132 become colder than the part of the wall 1311 and the hatch 1313 included in the first area A1 that are covered with the heat absorption layer 132.
[0025] The heat absorption layer 132 may be formed, for example, by applying paint having a high solar light absorption rate onto the outer surface of the first region A1 of the container body 131, or by attaching a film having a high solar light absorption rate onto the outer surface of the first region A1 of the container body 131.
[0026] The thermally conductive portion 133 is a linear member having a higher thermal conductivity than the container body 131, and is disposed so as to extend from the first region A1 located around the window 1312 to the window 1312. Desirable materials for the thermally conductive portion 133 include, for example, metals such as copper and aluminum.
[0027] As described above, in an environment where the container 13 is exposed to sunlight, the window 1312 has a lower temperature than the first area A1 of the container body 131. The thermally conductive portion 133 is a component that conducts heat from the first area A1 located around the window 1312 to the window 1312, thereby making the window 1312 hotter than the second area A2 of the wall 1311.
[0028] Therefore, in an environment where the container 13 is exposed to sunlight, the following relationship holds: (Temperature of the second area A2 of the wall 1311)<(Temperature of the window 1312)<(Temperature of the first area A1)
[0029] As a result, when condensation occurs in the container body 131, the condensation occurs in the second area A2 of the wall 1311 which has the lowest temperature.
[0030] The water collection container 134 is a container disposed at the bottom inside the second area A2 of the wall 1311, and collects water generated by condensation on the second area A2 of the wall 1311. That is, the water generated by condensation flows down along the inner surface of the wall 1311 and flows into the water collection container 134 below. As a result, the water generated by condensation does not wet the contents of the container 13.
[0031] According to the above-described container 13, condensation does not occur on the window 1312. Moreover, according to the above-described container 13, the water generated by condensation does not wet the contents of the container 13.
[0032] Furthermore, in manufacturing the container 13, the area of the first area A1 and the area of the second area A2 can be adjusted to adjust the temperature inside the container 13 during the flight of the flying object 1. Furthermore, among the contents contained in the container 13, the contents that do not like low temperatures are arranged near the first area A1, and the contents that do not like high temperatures are arranged near the second area A2, thereby reducing the risk of deterioration of the contents and the occurrence of breakdowns, etc.
[0033] [Variations] The above-described container 13 may be modified in various ways within the scope of the technical concept of the present invention. Examples of modifications are shown below. Two or more of the following modifications may be combined as appropriate.
[0034] (1) The appearance of the container 13 may be impaired due to the difference in appearance between the first region A1 of the container body 131 that is covered by the heat absorption layer 132 and the second region A2 that is not covered by the heat absorption layer 132. To solve this problem, the container 13 may be provided with a layer that covers at least a part of the second region A2, that looks the same to the human eye as the heat absorption layer 132, and that has a lower absorption rate of radiant heat from the sun than the heat absorption layer 132.
[0035] Fig. 5 is a diagram for explaining an example of this modified example. A logo mark "ABCDE FGHIJ" is drawn on the outer surface of the container 13 shown in Fig. 5. The color of this logo mark is different from the color of the background. In the following, as an example, the color of the logo mark is blue and the color of the background is white.
[0036] The following four types of paint are used to manufacture this container 13. WH paint is white and has a high rate of absorbing radiant heat from the sun. WL paint is white and has a low absorption rate of radiant heat from the sun. Blue paint BH with high absorption rate of radiant heat from the sun BL paint is blue and has a low absorption rate of radiant heat from the sun.
[0037] The paint WH and the paint WL both have low absorptance across the entire visible light frequency range so that they appear the same white to humans. Here, "appearing the same to humans" does not necessarily mean that they are exactly the same, but includes cases where they are similar enough to be difficult to distinguish.
[0038] In addition, Paint WH and Paint WL have high absorptivity over almost the entire frequency band of ultraviolet rays that have adverse effects on the human body. In other words, Paint WH and Paint WL have substantially the same distribution of light absorptivity over the frequency bands of visible light and ultraviolet rays.
[0039] On the other hand, Paint WH and Paint WL have different absorptivities in the infrared frequency band. Specifically, Paint WH has a high absorptivity in almost the entire infrared frequency band, while Paint WL has a low absorptivity in almost the entire infrared frequency band. As a result, Paint WH and Paint WL look the same white in sunlight and both block ultraviolet rays, but Paint WH becomes hotter than Paint WL.
[0040] In addition, paint BH and paint BL both have low absorptance in the blue frequency band and high absorptance in other frequency bands in the visible light frequency band so that they appear the same blue to humans. Here, "appearing the same to humans" does not necessarily mean that they are exactly the same, but includes cases where they are similar enough to be difficult to distinguish.
[0041] In addition, Paint BH and Paint BL have high absorptivity over almost the entire frequency range of ultraviolet light that is harmful to the human body. In other words, Paint BH and Paint BL have substantially the same distribution of light absorptivity over the frequency range of visible light and ultraviolet light.
[0042] On the other hand, Paint BH and Paint BL have different absorptivities in the infrared frequency band. Specifically, Paint WH has high absorptivities in almost the entire infrared frequency band, while Paint WL has low absorptivities in almost the entire infrared frequency band. As a result, Paint BH and Paint BL look the same blue in sunlight and both block ultraviolet rays, but Paint BH becomes hotter than Paint BL.
[0043] The absorptivity of the radiant heat from the sun of the layers formed on the outer surface of the container body 131 using the four types of paint is highest in the order of paint BH, paint WH, paint BL, and paint WL.
[0044] In the container 13 according to this modification, the entire area of the hatch 1313 and the background part of the first area A1 of the wall 1311 are covered with a heat absorbing layer 132 formed by applying paint WH. In addition, the logo mark part of the first area A1 of the wall 1311 is covered with a heat absorbing layer 132 formed by applying paint BH.
[0045] On the other hand, the background part of the second area A2 of the wall 1311 is covered with a layer formed by applying paint WL, and the logo mark part of the second area A2 of the wall 1311 is covered with a layer formed by applying paint BL.
[0046] Therefore, when the flying object 1 flies and the container 13 is cooled by the outside air, condensation first occurs in the background part of the second region A2 of the wall 1311 that is covered with the layer formed by the application of the paint WL, which has the lowest rate of absorption of radiant heat from the sun. If the area where condensation occurs then expands, condensation occurs in the logo mark part of the second region A2 of the wall 1311 that is covered with the layer formed by the application of the paint BL, which has the second lowest rate of absorption of radiant heat from the sun.
[0047] The logo mark portion of the second area A2 of the wall 1311 may be covered with a layer formed by applying paint BH instead of paint BL.
[0048] In addition, in the above example, the heat absorption layer 132 and a layer that has a lower absorption rate of radiant heat from the sun than the heat absorption layer 132 are formed by applying paint that looks the same but has a different absorption rate of radiant heat from the sun. Alternatively, the heat absorption layer 132 and a layer that has a lower absorption rate of radiant heat from the sun than the heat absorption layer 132 may be formed by attaching a film that looks the same but has a different absorption rate of radiant heat from the sun.
[0049] (2) The water collection vessel 134 may be a ballast tank that stores ballast water for adjusting the altitude of the flying object 1.
[0050] Fig. 6 is a diagram for explaining an example of this modified example. The vessel 13 shown in Fig. 6 includes a ballast tank 135 at the bottom of the vessel body 131. The ballast tank 135 includes a floor plate 1351 provided at the inside lower part of the vessel body 131, a bottom 1352 of the wall 1311, and a lid 1353 that closes an outlet O provided at the bottom 1352, and stores ballast water in its internal space. The lid 1353 is normally closed, but opens in response to, for example, an operation by a person (crew member) accommodated in the vessel 13. When the lid 1353 is opened, the ballast water stored in the ballast tank 135 is discharged through the outlet O to the outside space.
[0051] An inlet I is provided on the floor board 1351 at a position below the second area A2 of the wall 1311. Water generated by condensation in the second area A2 of the wall 1311 flows into the ballast tank 135 through the inlet I.
[0052] The lid 1353 and the mechanism for opening and closing the lid 1353 constitute a drainage mechanism that drains water generated by condensation in the second area A2 of the wall 1311 to the outside space. The container 13 according to the above-described embodiment may be provided with a drainage mechanism for draining the water stored in the water collection container 134 to the outside space. (3) Container 13 may include a water absorbing material that absorbs water generated by condensation in second area A2 of wall 1311. For example, by disposing a water absorbing material inside water collection container 134, water that flows into water collection container 134 is absorbed by the water absorbing material. As a result, even if container 13 sways significantly due to wind or the like while flying object 1 is flying, the stored water will not overflow from water collection container 134.
[0053] Note that preferred materials for the water absorbent include, for example, materials that physically absorb water, such as cotton or sponge, and materials that chemically absorb water, such as highly water-absorbent polymers.
[0054] (4) In the above-described embodiment, the wall 1311 of the container body 131 is divided into the first area A1 and the second area A2. In addition to this, or instead, the window 1312 may be divided into the first area A1 and the second area A2.
[0055] Fig. 7 is a diagram for explaining one example of this modified example. In the container 13 shown in Fig. 7, the window 1312 is divided into a first area A1 located in the center and a second area A2 located on the periphery.
[0056] A film that transmits almost all visible light and absorbs almost all ultraviolet and infrared rays is attached to the first region A1 of the window 1312. On the other hand, a film that transmits almost all visible light and infrared rays and absorbs almost all ultraviolet rays is attached to the second region A2 of the window 1312. As a result, when the sun hits the container 13, the first region A1 of the window 1312 absorbs more radiant heat from the sun than the second region A2 of the window 1312 and becomes hotter. As a result, when the air in contact with the window 1312 from the inside is cooled and condensation occurs, condensation occurs in the low-temperature second region A2 and does not occur in the high-temperature first region A1.
[0057] Instead of attaching a film to the window 1312, a transparent paint may be applied to the window 1312 to form a heat absorbing layer 132 in the first area A1 and a layer having a lower absorption rate of radiant heat than the heat absorbing layer 132 in the second area A2.
[0058] Furthermore, the application of a film or paint to the window 1312 may be performed on the inside of the window 1312 .
[0059] (5) In the above-described embodiment, the thermally conductive portion 133 is disposed on the outer side surface of the window 1312 (see FIGS. 3, 4, etc.). Alternatively, the thermally conductive portion 133 may be disposed on the inner side surface of the window 1312. Furthermore, the thermally conductive portion 133 may be disposed inside the window 1312.
[0060] (6) In the above-described embodiment, the container 13 includes the heat conductive portion 133, but the container 13 does not necessarily have to include the heat conductive portion 133. In other words, if the second region A2 of the wall 1311 becomes sufficiently colder than the window 1312 as the flying object 1 flies and condensation does not occur on the window 1312 even without the heat conductive portion 133, the heat conductive portion 133 may not be necessary.
[0061] (7) In the above embodiment, the type of flying object 1 is a gas balloon, but the type of flying object 1 is not limited to this. The flying object 1 may be a flying object that flies by buoyancy generated by wings, such as an airplane or a helicopter, or may be a flying object other than a gas balloon that flies by buoyancy, such as a hot air balloon or an airship. [Explanation of symbols]
[0062] 1...projectile, 11...air bag, 12...suspension rope, 13...container, 131...container body, 132...heat absorption layer, 133...heat conductive part, 134...water collection container, 135...ballast tank, 1311...wall, 1312...window, 1313...hatch, 1351...floor, 1352...bottom, 1353...lid.
Claims
1. A container equipped with a projectile, An airtight container body for accommodating contents therein, The container body is divided into a first region and a second region, a heat absorbing layer that covers the first region and does not cover the second region and absorbs radiant heat from the sun at a higher absorptivity than the container body; container.
2. a layer covering at least a portion of the second region, the layer having the same appearance as the heat absorbing layer to a human eye and having a lower rate of absorption of radiant heat from the sun than the heat absorbing layer; 2. The container of claim 1.
3. a portion of the container body is a window that transmits visible light; a linear member having a higher thermal conductivity than the container body, the linear member extending from the first region located around the window to the window; 2. The container of claim 1.
4. A water collection vessel is provided for collecting water generated by condensation in the second region.
2. The container of claim 1.
5. The water collection vessel is a ballast tank that stores ballast water for adjusting the altitude of the flying object.
5. The container of claim 4.
6. A drainage mechanism is provided for discharging water generated by condensation in the second region to an external space of the container body.
2. The container of claim 1.
7. A water-absorbing material is provided to absorb water generated by condensation in the second region.
2. The container of claim 1.
8. A flying object comprising a container according to any one of claims 1 to 7.
Citation Information
Patent Citations
Container for flying objects
JP7071770B2