JPS5863599A - Induction missile - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a guided flying object in which a plurality of electronic devices are mounted inside an outer cylinder, and a method for mounting these electronic devices.

Guided air vehicles are, as is well known, exposed to very severe vibration conditions over a wide frequency band.

A high level of reliability must be maintained under such conditions.

However, with the development of IC and L8 technology in recent years, there is a tendency for electronic devices to be equipped with electronic components that are much larger than conventional semiconductor devices. In particular, these large electronic components mounted on circuit boards are at risk of being damaged if they encounter low frequency resonance conditions with excessive amplitude.
It is desirable that the electronic device casing that supports the circuit board and the structural members that support the casing avoid resonance in the low frequency range as much as possible.

By the way, what about conventional guided flying objects?

As shown in Figures 1 and 2, the outer cylinder body (IIK fixed 7 langes (za), (zb) or side flap
-A (ia) and (3b) each have electronic equipment (ia) ~
A common method was to fix (41).

This method has the advantage that by removing the outer cylindrical body (11) and the dome (5), the internal electronic devices (4a) to (41) can be easily inspected, providing a structure with good maintainability.

However, in this structure, the electronic equipment (4a) # (4m)) I (4d) added to the 7 flange (za), (zb) is damaged by the flange (2a), (zb) against vibration in the direction of arrow A.
Its rigidity is lower than that in other directions, and it tends to resonate in the low frequency range. In addition, electronic equipment (4f), (ng), (a・)e (4h) suspended on the side frames (sa) and (rb)
I (41) has low rigidity in the direction of arrow B, and there is a risk of encountering a resonance state in the low frequency region as described above.

Therefore, in order to raise these resonance points to the required value, it is necessary to increase the rigidity of the flanges (2a), (21)) and the side frames (sIL), (sb).
These structural members have the drawback of being large and increasing their mass.

The present invention has been made in consideration of these drawbacks, and will be explained in detail below with reference to the drawings.

3 and 4 show an embodiment according to the present invention, in which the electronic devices (6a) to (6C) are divided into three parts in a plane perpendicular to the machine axis (7), and the cross-sectional shape is such that the outer diameter is ) is formed into a fan shape whose inner diameter corresponds to the outer diameter of the buffer body (8).

Furthermore, the buffer body (8) is an elastic structure such as a cylindrical rubber, a coil spring, or a disc spring that increases its outer diameter by compressive force.
A shirt placed at the center of the lunge (2a)) (
They are stacked on top of each other in iml. Also, 7 lunges (2
In b), a threaded portion that engages with the screw fi2 is provided for pressing.

Note that the flanges (25L), (21)) are fixed to the outer cylinder □1. Here, tighten the pressing screw o2 on the buffer body (8).
When the electronic devices (6a) to (6c) are compressed, each of the electronic devices (6a) to (6c) expands radially as the outer diameter of the buffer body (8) increases.
It can be brought into close contact with the inner wall surface of 1 and held.

Therefore, the vibrations transmitted to the electronic devices (6a) to (6c) are from the shock absorber ts+ and the outer cylinder (11), and are mostly influenced by the outer cylinder (11), which is a highly rigid body. Therefore, it is possible to eliminate the electronic device support structure that directly resonates at low frequencies as in the past.

In addition, by closely contacting the outer cylindrical body o1 facing the atmosphere,
It also has good heat dissipation means for electronic devices (6a) to (6C). In addition, the outer cylinder (11 and 7 lunges (2 m)
, (2b) and the pressing screw α2, the electronic devices (6a) to (AC) 10 can be taken out, and maintainability is also excellent.

FIG. 5 shows another embodiment according to the present invention, which is similar in principle to the embodiment shown in FIG. 4, but differs in the following points. That is, the electronic device (6) is separated from the structure by the buffer (
8) and vibration isolator (1 ga).

(13b) to improve vibration resistance, and the flange (21L) is separated from the outer cylinder (11).

Add a threaded part to the end of the shaft that engages the pressing screw 0, and attach the electronic device (6) by simply adding and removing the fastening element and set screw (1'3) for connecting the 7 langie and the outer cylinder (11). This improves maintainability by making it possible to increase the number of units.

As described above, according to the present invention, electronic equipment can be mounted on a guided flying object with an extremely simple structure.
A guided flying object with excellent vibration resistance and maintainability can be constructed.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing a state in which electronic equipment is mounted on a conventional guided flying object, Fig. 2 is a sectional view in the axial direction of Fig. 1, and Fig. 3 is a sectional view of four parts of a guided flying object according to the present invention. Figure 4 is the fifth
FIG. 5 is a partial sectional view of a guided flying object showing another embodiment of the present invention. In the figure (11 is the outer cylinder body, (2; is the 7 lange, (6) is the electronic device, (7) is the machine shaft, (9) is the shock absorber, Qn is the shaft, and α is the pressing screw. Note 9 Identical or corresponding parts in the figures are indicated by the same reference numerals. Agent Shin Kuzuno -6

Claims (1)

[Claims] In a guided flying vehicle that carries multiple electronic devices inside the outer cylinder, the inner center of the outer cylinder is equipped with an elastic shock absorber whose cross-sectional area increases in the direction perpendicular to the axis when it is compressed under a predetermined pressure in the axis direction. A predetermined number of electronic devices each having a fan-shaped cross section perpendicular to the machine axis are arranged in a cylindrical shape with the shock absorber of the PJr personnel inserted as the core, and the shock absorber is compressed, and these electronic devices are placed at right angles to the machine axis. A guided flying object characterized by being configured to move radially in a direction and press and fix to an inner wall surface of the outer cylindrical body.