JPH08113199A - Artificial satellite - Google Patents

Abstract

PURPOSE: To provide an artificial satellite which can be accommodated in a rocket even if it has a large main reflector, and can obtain prescribed radio wave characteristics even when it opens the main reflector. CONSTITUTION: The satellite has a support 2 supporting a large structure in a satellite body 1 and the support 2 can be moved to any position in a universal space direction from a position where the support 2 is disposed on the satellite body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial satellite, and more particularly, to an artificial satellite relating to a structure for storing and deploying a large structure, for example, a main reflecting mirror of an antenna, etc., attached to an artificial satellite body. .

[0002]

2. Description of the Related Art Conventionally, in order to attach a main reflecting mirror, which is a large structure, to an artificial satellite, a truss structure tower 12 is attached to an upper portion of an artificial satellite body 11 as shown in FIG. The main reflecting mirror 13 or the sub-reflecting mirror 12 or a power feeding device for supplying radio waves was attached to the device 12.

In the artificial satellite having such a structure, the main reflecting mirror 13 or the sub-reflecting mirror is folded in the housed state to make the tower 12
It was installed inside the rocket by being attached to and the main reflecting mirror 13 or the sub-reflecting mirror was deployed in outer space.

FIG. 5 is a diagram showing a state in which an artificial satellite is conventionally housed in a rocket. As shown in the figure, generally, the main reflecting mirror 13 is placed on the upper part of the artificial satellite, and is fixed so as to withstand vibration and acceleration at the time of launch. However, when a conventional rocket as shown in the figure is used, that is, when the volume of the inner wall 14 of the rocket cannot be made large, if the diameter of the main reflecting mirror 13 of the artificial satellite reaches 2-3 m, It has become the limit to store in.

Further, when an artificial satellite is emitted to outer space and the main reflecting mirror 13 is deployed, it is necessary to secure a path through which radio waves pass so that desired radio waves can be emitted to a predetermined position. There is a condition. For this reason, when the main reflecting mirror 13 is unfolded, the main reflecting mirror 13 is stored in the rocket depending on the positions of the power feeding device and the sub reflecting mirror that supply radio waves so that the above conditions are satisfied. You will be limited.

[0006]

As described above, the rocket for transporting the artificial satellite to outer space has a limit in the internal volume for mounting the artificial satellite. Therefore, for example, if an artificial satellite having a main reflecting mirror with a diameter of 10 m or more is stored in a rocket and deployed in outer space, the main reflecting mirror is folded in a complicated manner like an umbrella and stored in the rocket. Will have to. If the diameter of the main reflecting mirror is further increased, the volume of the main reflecting mirror becomes large even when folded, so that there is a problem that the main reflecting mirror cannot be stored in the rocket.

Even if it can be housed in a rocket, when it is deployed in space from its housed state, if it is deployed at a position where predetermined radio wave characteristics cannot be obtained, main reflection will occur. It had a problem that it did not function as a mirror.

Therefore, the present invention has been made to solve the above-mentioned problems, and can be housed in a rocket even if it has a large main reflecting mirror, and when the main reflecting mirror is deployed. Also in the above, it is an object to provide an artificial satellite capable of obtaining a predetermined radio wave characteristic.

[0009]

In order to achieve the above object, the artificial satellite according to claim 1 is movable in the space direction from an artificial satellite main body and a position arranged on the artificial satellite main body. It is characterized by comprising a support base and a large structure supported by the support base.

Further, in the artificial satellite according to a second aspect of the invention, when the large structure is in a stored state, the support base is located on the artificial satellite body, and the large structure is It is characterized in that the support moves in the outer space direction when in the deployed state.

An artificial satellite according to a third aspect of the present invention is an artificial satellite body, a mounting base arranged on the artificial satellite main body, a tower mounted on the mounting base, the mounting base, and the mounting base. A three-dimensionally movable support stand, which is connected to both of the towers by connecting members and is arranged on the left and right of the mounting stand, and a large structure supported by the support stand. And

Further, in the artificial satellite according to a fourth aspect of the invention, when the large structure is in a stored state, the support base is located adjacent to the mounting base, and the large structure is in a deployed state. In one case, the support table is characterized by moving three-dimensionally in the direction of outer space.

Further, the artificial satellite according to a fifth aspect is characterized in that the large structure is an antenna. Furthermore, the artificial satellite according to claim 6 is characterized in that the large structure is a main reflecting mirror.

[0014]

In the artificial satellite of the present invention, the support table, which is arranged on the main body of the artificial satellite and supports the large structure, moves to an arbitrary position in the space direction.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a configuration of a state in which an artificial satellite according to an embodiment of the present invention is housed in a rocket.

As shown in FIG. 1, a main reflecting mirror mount 2 is provided on the artificial satellite body 1. A folded main reflecting mirror 3 that reflects radio waves is provided on both side surfaces of the main reflecting mirror mount 2, and a tower 4 is provided on the upper portion. These are housed in the rocket inner wall 5. The main reflector mounting base 2 is composed of a fixed mounting base 2a fixed to the artificial satellite body 1 and a movable mounting base 2b on which the main reflecting mirror is mounted.

FIG. 2 is a diagram showing the configuration of the artificial satellite of the above embodiment in a state where the main reflecting mirror 3 is expanded. As shown in the figure, in this artificial satellite in which the main reflecting mirror 3 is deployed,
A fixed mount 2a is provided on the upper portion of the artificial satellite body 1, one end of an extendable arm 6 is mounted on both sides of the fixed mount 2a, and the other end of the arm 6 has a main body. The movable mount 2b to which the reflecting mirror 3 is attached is attached. In addition, the moving mount 2b
A power supply unit 7 is provided on the upper side of the fixed mount 2a.
A tower 4 is provided on the upper part of the.

In the artificial satellite thus constructed, rails (not shown) are arranged on the upper surface of the artificial satellite body 1, and the arms 6 provided on the left and right of the fixed mount 2a.
To extend the movable mounting base 2b,
Further, the folded main reflecting mirror 3 is developed. As described above, the artificial satellite of this embodiment operates from the state shown in FIG. 1 housed in the rocket to the state shown in FIG. 2 in which the main reflecting mirror 3 is deployed.

As described above, in this embodiment, the movable mount 2b is arbitrarily moved so that the main reflecting mirror 3 is installed without contacting the inner wall 5 of the rocket when it is housed in the rocket. can do. Furthermore, when the main reflecting mirror 3 is deployed, the main reflecting mirror 3 can be arbitrarily moved to a predetermined position where radio waves pass, and desired radio wave characteristics can be obtained. In addition, the main reflecting mirror 3 and a sub-reflecting mirror (not shown), and a power feeding unit 7 for transmitting and receiving radio waves.
It is possible to carry out a wide range of design regarding the position of.

In the modification of the present embodiment, the main reflecting mirror 3 has been described, but this is not limited to the main reflecting mirror 3 and other large structures such as antennas may be used.

Next, the main reflecting mirror 3 of the artificial satellite shown in FIG.
A modified example of the expanded state will be described. FIG. 3 is a diagram showing a configuration of a modified example in which the main reflecting mirror 3 is expanded. This artificial satellite, in which the main reflecting mirror 3 is deployed, is capable of moving the movable mount 2b vertically and horizontally. A fixed mount 2a is provided above the artificial satellite body 1, and a tower 4 is provided above the fixed mount 2a. A member 8 having a free joint whose one end is connected to the fixed mount 2a and a variable length cable 9 whose one end is connected to the tower 4 are provided on the left and right of the fixed mount 2a and the tower 4. The movable mounts 2b to which the main reflecting mirror 3 is attached are connected to the other ends of these. Fixed mount 2a on the top of the satellite body 1
Power supply units 7 are provided on the left and right sides of, respectively.

In the artificial satellite thus constructed, the movable mounting base 2b is hung from the tower 4 by the variable length cable 9, and the fixed mounting base 2a is further suspended.
The movable mounting base 2b can be moved three-dimensionally by connecting the movable mounting base 2b and the movable mounting base 2b with each other by a member 8 having a freely-bendable joint. As described above, the artificial satellite according to the present embodiment is changed from the state of being housed in the rocket as shown in FIG. 1 to the main reflecting mirror 3 as shown in FIG.
To the expanded state.

As described above, in the modified example of this embodiment, the movable mounting bases 2b are stored on both sides of the fixed mounting base 2a so that the movable mounting bases 2b are brought into contact with the inner wall 5 of the rocket when stored in the rocket. Without the main reflector 3
Can be installed. Further, by freely moving the movable mount 2b up and down, and left and right, when the main reflecting mirror 3 is expanded, the main reflecting mirror 3 can be moved to a predetermined position where radio waves pass, and desired radio wave characteristics can be obtained. Obtainable.
Further, it becomes possible to design a wide range with respect to the positions of the main reflecting mirror 3 and the sub-reflecting mirror (not shown), and the power feeding unit 7 for transmitting and receiving radio waves, and further, the position where the ray path of the power feeding unit 7 can be secured. The main reflecting mirror 3 can be moved and arranged.

In the modification of the present embodiment, the main reflecting mirror 3 has been described, but this is not limited to the main reflecting mirror 3 and other large structures such as antennas may be used.

[0025]

As described above, according to the present invention, even if a large-sized main reflecting mirror is included, it can be stored in a rocket, and even when the main reflecting mirror is unfolded, a predetermined radio wave is emitted. It is possible to provide an artificial satellite that can obtain characteristics.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of an artificial satellite according to an embodiment housed in a rocket.

FIG. 2 is a diagram showing a configuration of a state where a main reflecting mirror 3 of the artificial satellite of the embodiment is expanded.

FIG. 3 is a diagram showing a configuration of a modified example of a state where the main reflecting mirror 3 of the artificial satellite of the embodiment is expanded.

FIG. 4 is a view showing a state where a main reflecting mirror 3 of a conventional artificial satellite is deployed.

FIG. 5 is a diagram showing a state in which a conventional artificial satellite is housed in a rocket.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Satellite main body, 2 ... Main reflecting mirror mounting base, 2a ... Fixed mounting base, 2b ... Moving mounting base, 3 ... Main reflecting mirror, 4 ... Tower, 5 ... Rocket inner wall, 6 ... Arm, 7 ... Electric power feeding part, 8
... A member having a free joint, 9 ... A cable.

Claims (6)

[Claims] 1. An artificial satellite main body, a support base movable in a space direction from a position arranged on the artificial satellite main body, and a large structure supported by the support base. Artificial satellite. 2. The support base is in a position arranged on the artificial satellite body when the large structure is in a housed state, and the support base is in a deployed state when the large structure is in a deployed state. The artificial satellite according to claim 1, wherein the artificial satellite moves in the direction of outer space. 3. An artificial satellite main body, a mounting base arranged on the artificial satellite main body, a tower mounted on the upper part of the mounting base, and a connecting member connected to both the mounting base and the tower. An artificial satellite comprising: a three-dimensionally movable support stand connected to the left and right of the mounting stand; and a large structure supported by the support stand. 4. The support base is located adjacent to the mounting base when the large structure is in a stored state,
The artificial satellite according to claim 3, wherein the support platform moves three-dimensionally in the direction of outer space when the large structure is in a deployed state. 5. The artificial satellite according to claim 1, wherein the large structure is an antenna. 6. The artificial satellite according to claim 1, wherein the large structure is a main reflecting mirror.