JPH04278899A - Holding releasing device for development type solar battery paddle - Google Patents

Abstract

PURPOSE:To surely develop each panel by the force of a coil spring when holding is released, by holding a panel accommodation state by the engagement of the lower edge recessed part of a holding pin penetrating through the hole on the bush of each panel with, the top edge of a lever. CONSTITUTION:A plurality of panels 1 in an accommodated state on a satellite side wall 3 are restrained by allowing the lower edge recessed part of a holding pin 6 penetrating through a bush 5 to be pressed by the left edge part T of a lever 17. Further, the bush 5 assembled with the panel 1 is pressed by a compression coil spring 15 assembled with the upper part of the holding pin 6 by a nut 10, and each panel 1 is restrained on the satellite side wall 3 by a force P. When the restrained panel is released on an orbit, the force F is released by an explosion device, etc. Accordingly, the restraint for the holding pin 6 is released by turning the lever 17 in the B direction around a pin 18 by the force P applied to the holding pin 6, and each panel 1 is developed around a butterfly valve 4 by the force of the compression coil spring 15.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention is applicable to a deployable solar array paddle that is mounted on an artificial satellite and is composed of a plurality of panels each having solar cells attached to its surface. It concerns a releasing device.

0002

2. Description of the Related Art Conventionally, there has been an apparatus of this type as shown in FIG. Figure 5 shows the panel holding state. In the figure, 1 is a plurality of panels to which solar cells 2 are attached, 3 is a satellite side wall, and 4 is a panel that connects the panels 1 to each other or the satellite side wall 3 and the panel closest to it. , hinge to unfold, 5 is panel 1
6 is a pin that passes through the bush 5, 7 is a bracket attached to the satellite side wall 3, 8 is a rod that is incorporated into the bracket 7 and restrains the pin 6, 9 is a gap between the bracket 7 and the rod 8 It is a compression coil spring built into the. Also, 10 is a nut for tightening pin 6, 11
12 is a compression coil spring, 12 is a case serving as a guide for the compression coil spring 11, and 13 is a nut for fixing the case 12 to the pin 6.

The conventional holding and releasing device is constructed as described above, and when the satellite is stopped, the plurality of panels 1 are stored on the side wall 3 of the satellite, as shown in FIG. That is, the pin 6 that passes through the bush 5 is restrained by the rod 8 being pressed into the recess h at its lower end by the force F and being fitted, while the nut 10 is held in the upper part of the pin 6.
By tightening with , the bush 5 and thus the panel 1 are pressed and restrained on the satellite side wall 3 with a force P. When the force F is released by a detonator device (not shown) in order to deploy the panel 1 on the orbit, the rod 8 moves inside the bracket 7 with an arrow as shown in FIG. 6 due to the spring force of the compression coil spring 9. Slide in direction A to release the restraint of pin 6. The released pin 6 is pulled out between the bushes 5 at once by the spring force of the compression coil spring, and as shown in FIG. 7, is held by the bush of the outer end panel by the residual spring force of the compression coil spring 11, and the panel 1 begins to unfold. It is.

0004

[Problem to be Solved by the Invention] In the conventional holding and releasing device as described above, when the panel is in the retracted state, the pin 6
Due to the recess h, the end of the rod 8 is pulled by a force P in the direction of arrow A in FIG. Considering the vibration of the rocket when the satellite is stopped, it is necessary to use a large force P in order to securely fix the panel 1 to the satellite side wall 3.
Even if the release device (detonator) is activated and the force F is released, the end of the rod 8 receives a force in the direction of the arrow A and does not slide inside the bracket 7, as described above, and the panel 1 The problem was that there were cases in which release was not achieved.

[0005] The present invention was made to solve this problem, and an object of the present invention is to provide a highly reliable holding and releasing device that can reliably release a panel when the panel is unfolded.

[0006]

[Means for Solving the Problems] In the holding and releasing device according to the present invention, a lever and a pin, which is the center of rotation of the lever, are fixed to a satellite side wall so that the concave portion at the tip of the holding pin can be pressed with one end of the lever. It is placed inside the bracket instead of the rod.

[0007]

[Operation] In the present invention, after the release device (detonator) is activated, the holding pin is reliably released, so that the panel can be unfolded without failure.

[0008]

[Example] Example 1. 1 to 4 are cross-sectional views showing one embodiment of the present invention, and 1 to 6 and 10 and 12 are the same as those of the conventional device. 14 is a bracket fixed to the satellite side wall 3 and has a cutout window w; 15 is a compression coil spring incorporated between the nut 10 and the holding pin 6;
6 is a pin incorporated in the bracket 14, 17 is a lever whose rotation center is the pin 16, and 18 is the pin 16.
A torsion coil spring 19 is assembled into the case 1 and has one end fixed to the lever 17 and the other end fixed to the bracket 14.
2 is a screw for fixing to the bush 5 at the outer end, and 20 is a screw for fixing the bracket 14 to the satellite side wall 3.

In the holding and releasing device constructed as described above, the plurality of panels 1 are stored on the satellite side wall 3 as shown in FIG. 1 when the satellite is stopped. That is, the holding pin 6 that passes through the bush 5 has its lower end concave portion pressed against and restrained by the left end portion T of the lever 17 within the bracket 14 . On the other hand, at the upper part of the holding pin 6, the compression coil spring 15 incorporated in the upper part of the holding pin 6 is tightened by the nut 10 to the bushing 5 incorporated in the outer end panel 1, so that the holding pin 6 is pulled with a force P. A force is applied in the tensioning direction, and as a result, the panel 1 is pressed onto the satellite side wall 3 with a force P and restrained. At this time, the lever 17 is pressed and restrained by an external force F commensurate with the force P. The force P can be adjusted by rotating the nut 10 that engages with the male threaded portion at the top of the holding pin 6. Next, the operation will be explained. In order to release panel 1 on orbit, a detonator device etc. (
When the force F is released by a lever (not shown), the force P applied to the holding pin 6 causes the lever 17 to rotate in the direction B about the pin 18, and the holding pin 6 is released. As shown in FIG. 2, the released holding pin 6 moves upwardly due to the compression coil spring 15 compared to the panel retracted state, but the range of movement is restricted by the case 12. On the other hand, the panels 1 that are released from the restraint are each unfolded around the hinge 4 as the center of rotation, but the holding pins 6 are successively removed from the bush 5 that is closer to the satellite side wall 3. panel 1
When the expansion is completely completed, the shape becomes as shown in FIG. 3, and the portion of the holding pin 6 that protrudes from the outer end panel 1 is held in a state where it protrudes to the side where the solar cell 2 is not attached. In FIG. 1, when the holding pin 6 is released, it depends on the rotation of the lever 17 and does not rely on sliding, so the release function is highly reliable. Further, in FIG. 3, by adjusting the length of the case 12, it is possible to prevent a shadow from falling on the solar cell light receiving surface.

0010

[Effects of the Invention] As explained above, the present invention has the effect of increasing the reliability of solar cell panel deployment by providing a holding and releasing device that can reliably release the holding pins, and also has the effect of increasing the reliability of solar cell panel deployment. This has the effect of preventing it from falling.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a solar cell panel in a stored state according to a first embodiment of the present invention.

FIG. 2 is a sectional view immediately after the release device is activated, showing the first embodiment of the present invention.

FIG. 3 is a sectional view showing a solar cell panel according to the first embodiment of the present invention after being expanded.

FIG. 4 is a cross-sectional view showing the main parts of Embodiment 1 of the present invention.

FIG. 5 is a cross-sectional view of a conventional holding and releasing device in a solar cell panel storage state.

FIG. 6 is a cross-sectional view of a conventional holding and releasing device immediately after the releasing device is activated.

FIG. 7 is a cross-sectional view of a conventional holding and releasing device in its final state immediately after the releasing device is activated.

[Explanation of symbols]

1 Panel 2. Solar cells 3 Satellite side wall 4 Hinge 5 Bush 6 Holding pin 10 Nut 12 Case 14 Bracket 15 Compression coil spring 16 pin 17 Lever 18 Torsion coil spring

Claims (1)

[Claims] [Claim 1] A holding and releasing device for a deployable paddle that is mounted on an artificial satellite and is composed of a plurality of panels each having a solar cell affixed to the surface thereof, which is embedded in each of the panels and is in a state where the panels are stored. , a bush having a hole penetrating the plurality of panels, a retaining pin penetrating through the inside of the bush, a nut incorporated in the male threaded portion of the upper part of the retaining pin, a bush incorporated in the outer end panel of the panel; A compression coil spring fixed at both ends with nuts and built into the outer periphery of the holding pin, a case fixed to the first bush built into the outer end panel, a bracket fixed to the satellite side wall, and the bracket. a pin fixed therein, a lever that is incorporated so that the pin is the center of rotation and has a convex tip that contacts a recess at the lower end of the holding pin, that is incorporated in the pin and has one end attached to the lever; A device for holding and releasing a deployable solar cell paddle, further comprising a torsion coil spring whose other end is fixed to the bracket.