JPH02169399A - Partial spreading paddle - Google Patents

Abstract

PURPOSE:To increase the extent of generated power by holding only a panel at the outside once at a spreading position at 90 degrees, and afterward, installing a spreading latch mechanism capable of making all panels into a spread state, in a solar paddle with plural sheets of panels spreadable in space. CONSTITUTION:Such ones adjacent themselves among first to fourth panels 1, 2, 3 and 17 are connected with one another by hinges 21-23, and both first and second support brackets 24, 25 supporting first and second receivers 26, 27 are locked to the first and third panels 1, 3. The first and second receivers 26, 27 are installed so as to restrict their spread as being butted when the first panel 1 is spread at 90 degrees. In addition, a latch-up guide 15 is locked to the second panel 2, while a latch-up fork 13 being pressed to this guide 15 by spring force is installed in the first panel 1, and this fork 13 is engaged with a step difference (A) and a groove (B) formed in the guide 15 when the first panel 1 is spread at 90 degrees and 180 degrees.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a deployable solar cell paddle that can transition from partial deployment to full deployment in, for example, outer space.

[Conventional technology]

Figures 7 to 1O are diagrams showing the conventional unfolding mechanism, and the members (1
It has a hinge structure in which the clevis fitting (41f51) to which the latch-up bin (0 A round latch-up arm (p) is attached via the shaft (4), and a latch-up guide (19) is provided on the clevis fitting (5).

In addition, the latch-up bin (the latch-up guide (
2. In order to finally engage the groove A provided in the clevis fitting (5), a spring (υ) is provided to pull the latch up pin (support) towards the hinge pin (7). There is.

Next, the operation will be explained. In Figures 7 and 8, members (
1] shows the state before deployment with IJ f2+ retracted, but as the RUN of the two members progresses, the latch-up pin (goods) moves into the thin semi-disc-shaped latch-up guide (one piece) due to the action of the spring (υ). When the latch-up pin (11121) that has slipped on the peripheral edge of the latch-up guide (19) becomes flush with the adjacent member (11121 (Fig. 9, 1θ)),
5) falls into the groove A provided in the clevis fitting (5) due to the tensile force of the spring (υ).At this time, the clevis fitting (5)
) is the groove provided in Fig. 8? As shown in ζ, the width becomes narrower as it goes deeper, so the latch-up is completed with the latch-up pin (■) biting into the groove (A). Furthermore, since the right edge of the groove A is higher than the left edge, the latch-up pin (2) does not pass through the groove A during latch-up (latch-up can be performed reliably).

When the latch-up is completed, a locking force is obtained by the frictional force between the latch-up pin (■) and the groove A, the tensile force of the spring (l), and the deployment surplus force (member +1) (211) to maintain the predetermined deployed position. .

[Problem to be solved by the invention]

In the conventional deployment latch mechanism as described above, two members (
1) (It did not latch unless 21 was flush.

However, in recent years, as shown in Figure 6, in order to increase the power generated when the I star (solstice) is flying in a transition orbit, only the outermost solar panel (1) has been expanded 90 degrees. and all panels (1
1 (21 (31
! Opening it was a problem due to the structure of the mechanism.

This invention was made in order to solve the above-mentioned problems 1 and 2, and it provides a deployment latch mechanism that allows only the outer end panel to be unfolded at 90 degrees and held at 90 degrees, and all remaining panels to be in the unfolded state. The purpose is also to obtain.

Means for Determining the Number of Classes] A partially deployed paddle according to the present invention includes an arbitrary number of first support brackets fixed to a first panel serving as an outer end;
Any number of second support brackets that are paired with each of the first support brackets and are fixed to a third panel that is further inward across a second panel that is adjacent to the outer end panel.

The first receiver is attached to each of the first support brackets so that the length can be adjusted, and the first receiver is attached to each of the first support brackets so that the length can be adjusted. Each second receiver hits the receiver and the first panel to restrain the deployment when the receiver is deployed 90 degrees, and the receiver is fixed to the second panel adjacent to the first panel and the first panel and the second panel In the first panel hinge that rotatably connects the panels, a detent step is provided at the 90-degree deployed position of the sliding surface that is provided to maintain the deployment angle during deployment and guides the latch-up fork during deployment. It is equipped with a latch-up guide.

[For production]

In this invention, the partially deployed paddle is integrally provided on the first panel hinge fixed to the second panel, and the above-mentioned latch-up guide has a step at the 90 degree deployed position and a groove at the fully deployed position, With the first stage of deployment of only the first panel at the outer end, the latch-up fork rotatably incorporated in the first panel hinge is guided on the sliding surface.

At the 90 degree unfolded position, the latch-up guide is provided with f:
The latch-up fork falls on the step at the 90-degree deployed position, preventing it from returning. Also, during this first stage, an arbitrary number of first support brackets are fixed to the first panel serving as the outer end.

an arbitrary number of second panels fixed to a third panel located further inside across the second panel adjacent to the outer end panel;
support bracket, and the first support bracket is attached to each support bracket so that its length can be adjusted. restraining deployment by hitting the second receiver;
The panel is stopped and held at the 90 degree unfolded position.

When the other panels start to unfold in the second stage of unfolding, the first panel, second panel, and third panel are each unfolded and move away. By hitting the receiver, the restraint of the first panel at the 90-degree deployed position is released, and deployment of the first panel is resumed.

When all the panels are fully expanded to the fully expanded position, the latch-up pin catches the groove in the latch-up guide at the fully expanded position, and the panel is latched.

〔Example〕

FIG. 1 is a diagram showing the basic configuration of an embodiment of the present invention. In Figure 1, fil is the first panel at the outer edge, (2)
is the second panel adjacent to panel (1), and (3) is the second panel adjacent to panel (1).
(r?) is the third panel adjacent to panel (2), (r?) is the fourth panel adjacent to third panel (3), (21
) is a first hinge that connects the first panel fil and the second panel (2), (22) is a second hinge that connects the second panel (2) and the third panel (31), (23)
(24) is the third hinge connecting the third panel (3) and the fourth panel (1?), and (24) is the first panel (1).
a first support bracket (25) supporting a first receiver (26) fixed to said third panel (3), the mounting being fixed to said third panel (3); Adjustably mounted second receiver (27
) is the second support bracket that supports the.

Figures 2, 3, and 5 show the first support bracket and Soto (24) when the paddle in Figure 1 is in the retracted state, the 90-degree unfolded state, and the 180-degree unfolded state. .

The first receiver (26), the second support bracket (
25) is a diagram showing the positional relationship of the second receiver (27).

FIG. 4 is a diagram showing a state when the first panel (11) of the first hinge (21) shown in FIG. 1 is unfolded 90 degrees.

In Fig. 4, (19 is a latch-up guide that is fixedly built into the second panel (2), and ■ is a latch-up guide that is pressed against one by a spring force (
However, the spring is omitted from the figure) The latch-up fork slides over the latch-up guide (one level above) according to the deployment of the first panel (1). When the latch-up guide (19) is expanded to 90 degrees in response to the expansion of the latch-up fork (1), the latch-up guide (19) falls when the latch-up guide (19) (28) is the rotation axis of the first hinge (21), (291 is the rotation axis of the third hinge (23) It is the axis of rotation.

Next, the operation will be explained.

FIG. 2 shows the state when stored. In the first stage of deployment, the first panel (1) at the outer end is unconstrained (
(Mechanisms involved in holding and releasing the panel are not shown)
The first panel at the outer end is rotated about the rotation axis (28) of the first hinge by the energy of a spring (not shown in the figure) installed coaxially with the rotation axis (28) of the first hinge. Only (1) starts to unfold.

Upon deployment of the first panel (1) at the outer end, a first support bracket (24) fixed to the first panel (1)
) and the attachment also deploy the first receiver (26), which is attached so that its length can be adjusted. As the unfolding progresses and the unfolded position of the first panel (11) reaches 90 degrees.

A first support bracket (24) fixed to the first panel (11) is attached to a first support bracket (24) whose length is adjustable.
When the receiver (26) is attached to the second support bracket (25) fixed to the third panel (3), deployment is restrained by hitting the second receiver (27) whose length is adjustable. Be it. This interrupts deployment of the outer end first panel.

It will be in the position shown in Figure 3. At the same time, at the first hinge (21) connecting the first panel (1) and the second panel (2) at the outer end, the first panel (1) and the second panel (2) ) expands to 90 degrees and at the t position, the latch-up fork blade falls onto the step A on the latch-up guide (19), thereby restraining the return of the first panel (1) to the storage side. FIG. 4 shows the state.

In the second stage of deployment, the inner panels, except the first panel (1) at the outer end, are released. (The mechanisms involved in retaining and releasing the panels are not shown.) A second stage of deployment allows the second panel (2) and the third panel (3) to
In order to expand the distance between the two receivers, the contact between the first receiver (26) and the second receiver (27) shown in FIG. When the unfolding angle between the first panel (11) and the second panel (2) reaches 180 degrees, the latch-up fork (■ indicates the latch-up guide (19) of the first hinge (21) The expansion is completed by mating with the mating groove A. At this time, the first panel (1) and the second support bracket (241) of the first support bracket (241) and the first receiver (26) The state of panel (2) is shown in FIG.

〔Effect of the invention〕

As explained above, this invention was fixed to the first panel fi+ and the third panel (3), respectively. First support bracket (24), second support bracket (25)
) and each support bracket has an adjustable length
A receiver (26) and a second receiver (271) are provided, and a step A is provided in the latch-up guide (19) of the first hinge (21) that connects the first panel (11) and the second panel (2). With a simple modification compared to the conventional paddle, it is possible to stop and hold only the first panel !11 at the outer end at the 90-degree deployed position, which reduces the increase in power generated during the satellite's transition orbit. It has the effect of being measurable.

[Brief explanation of the drawing]

Figures 1 to 5 are diagrams showing one embodiment of the present invention.
The figure is an overview of the panel in the stored state, Figure 2. Figures 3 and 5 are Sabo!・Detailed view of the bracket and receiver section when two parts are unfolded and fully unfolded. Figure 4 is a detailed view of the first hinge connecting the first panel and the second panel when it is partially unfolded. Figure 6 is a detailed view of the first hinge that connects the first panel and the second panel when it is partially unfolded. To supplement Figures 1 to 5, there are general views of the satellite body and the deployable solar array paddle in each state, and Figures 7 to 10 are diagrams showing the latch mechanism of the conventional deployable paddle. 7 is a plan view of the stored state, FIG. 8 is a front view of the stored state, FIG. 9 is a front sectional view of the unfolded state, and FIG. 10 is a plan view of the unfolded state. In the figure, (11(21+31 <rl>) is the spring 71.
, f41f51 is the hinge clevis fitting, (7) is the hinge pin, ( is the latching pin, 0+; 1 latch up fork p (2) is the hook shaft, (19 crawl, nch up guide, (0 is the fork spring, ( 21)
(22) and (23) are hinges, (24) and (25) are support brackets, (26) and (27) are receivers, and A is a step. Note that the same reference numerals in the two figures indicate the same or corresponding parts. Diagram

Claims (1)

[Claims] In a deployable solar battery paddle having a plurality of panels that can be deployed in outer space, an arbitrary number of first support brackets fixed to a first panel serving as an outer end, paired with each of the first support brackets. and an arbitrary number of second support brackets fixed to a third panel located further inward across a second panel adjacent to the outer end panel, an attachment length to each of the first support brackets. a first receiver whose length is adjustable; a first receiver whose mounting length is adjustable which is attached to each of the second support brackets; each second receiver for restraining deployment, each second receiver being secured to a second panel adjacent to said first panel;
In the panel hinge that rotatably connects the panel and the second panel, the sliding surface 9 that guides the latch-up fork provided to maintain the deployment angle during deployment.
A partially deployed paddle characterized by comprising a latch-up guide provided with a detent step at a 0 degree deployed position.