JPH04201699A - Contact pin protection mechanism for umbilical connector plug - Google Patents

Abstract

PURPOSE:To prevent the fracture or bend of a contact pin by using two insulators in a plug, and making the front insulator movable. CONSTITUTION:A rear insulator 21 implanted with many pins 20 is fixed to a plug shell 23 with four set bolts 22. The external surface of the plug shell 23 is extended forward, and a front insulator 24 separated from the rear insulator 21 is laid inside the extended surface. The front insulator 24 when not engaged with a receptacle 7, projects from the shell 23, due to the resilient force of springs 25 so laid as to enclose each bolt 22, and protects the pins 20. When a plug body is connected to the receptacle 7, the front insulator 24 at the plug side is pushed by a front insulator 28 at the receptacle side, and moves to the side of the rear insulator 21 against the resilient force of the springs 25, thereby exposing the pins 20 to the receptacle side and coupling the pins 20 to a socket 8.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a protection mechanism for contact pins of ampirical connectors used in rockets, spacecraft, space bases, etc.

[Conventional technology]

The structure of a conventional connector plug is as shown in Fig. 5, and is fixed with delts 2 (one in each corner, 4 in total) inside a shell 1, and has an insulator 3. A large number of contact pins 4 are installed in the rotor. Therefore, each contact pin is exposed forward from the insulator.

Reference numeral 5 indicates a nine-separation coupling device provided in the center, and reference numeral 6 indicates an electric wire.

When this plug is connected to the receptacle 7 on the fuselage side shown in FIG. 2A, the contact bin 4Fi is connected to the socket 8 of the receptacle on the fuselage side, and the state shown in FIG. 1 is established and the rocket 9 is prepared for launch.

At this time, the central insulator 10 of the receptacle is moved to the right in the figure via the corresponding member 11 which engages with the separating and coupling device 5, and the socket contact 12 and the socket 8 are connected.

[Problems to be solved by the invention] However, the conventional structure has the following problems9. That is, (1) When the ampirical connector (plug side) is detached from the fuselage side receptacle 7, its own weight and cable 13
It falls due to its zero weight and collides with the catch net section 15 of the ampirical tower 14. Therefore, a strong impact is applied to the connector. At this time, there is a possibility that the contact pins 4 in the connector may be broken or bent.

(2) As a secondary disaster due to the defect in item (1) above, if the contact bin is bent and adjacent contacts come into contact, an electrical short circuit will occur and damage the equipment connected to the Mine connector. (3) As shown in Figure ≠, when viewed from the receptacle coupling direction, the inside of the connector is physically open.

For this reason, when the rocket flies up, the connector will be exposed to flames and smoke from the rocket engine, and it is expected that the gold plating on the contact pins will be damaged or the contact pins will melt due to the effects of the flames and smoke. .

[Ninth means to solve the problem]

In order to solve the above problem, a mechanism is required that closes the surface facing the receptacle coupling direction and physically holds the tip of the contact pin.

The present invention employs a structure that satisfies these two problems with one mechanism.

That is, the number of insulators inside the plug was increased from the conventional one to two, and the inner front insulator of these two insulators was designed to be movable. (The purpose of the rear insulator is the same as that of conventional connectors: to fix the contact pins and to airtight the wire connection area.) Due to the movable action of this front insulator, while connected to the receptacle, it is the same as conventional connectors. After the withdrawal, the above-mentioned measures will be taken and the measures will be carried out diligently.

[Effect]

The operating mechanism is that when it is connected to a mating receptacle, it functions in the same way as a conventional connector, but the front insulator on the plug side (movable) is pushed backward by the front insulator on the receptacle side (fixed). Moving. The contact pin fixed to the rear insulator comes out from the front insulator to the front side by the amount of this movement, and is coupled to the socket contact on the receptacle side. On the other hand, in the detached state, the front insulator on the plug side is free from contact pressure from the front direction due to the force of the four springs installed between the front insulator and the rear insulator in the ninth plug. Move forward until the front insulator touches the tops of the four fixing gels. At this time, this protection mechanism is activated, and the contact pin inside the plug is physically recessed into the front insulator, creating walls from four directions inside the plug.
It is a mechanism that protects from the above-mentioned impact environment and flame/smoke environment.

〔Example〕

Next, one embodiment of the present invention will be described. On the front side of the plug body P in FIG. 1, there are installed a large number (225) 411 of bins 20 facing the socket 8 of the receptacle described in FIG. 2A at the rear. Naturally, the same number of sockets 8 are provided on the receptacle side. And the rear insulator 21 is for fixing the 4? It is fixed to the shell 23 of the plug by a bolt 22 .

The outer periphery of the plug shell 23 extends forward, and a front insulator 24 is provided inside the shell 23 at a distance from the rear insulator.

However, this front insulator 24 is connected to each delt 22.
A spring 25 provided to surround...
Due to the elasticity of the second
As shown in Figure B, it protrudes from the shell 23 and is provided to fit into this insulator to protect the nine bottles 20. 26 is a separation/coupling device for the receptacle and the plug.

This separation/coupling device corresponds to the corresponding member 11 described above.

, 27 indicate electric wires connected to the pier 20.

This electric wire is connected as an electric cable 13 to a control device (not shown) of the umbilical tower 14.

Since the receptacle shown in FIG. 2A is also used in the present invention, an additional explanation will be given.When the socket 8 is implanted, the front incillator 28 is installed in the shell 29, and the I.
C & Ruto (actually there are 4) are fixed at 30... A spring 31 is provided between the center insulator 10 and the front insulator 28 so as to surround each I-rut.

32 indicates a lobe connecting the plug body P and the umbilical tower.

In such a configuration, the plug body P is connected to the receptacle 2.
When connected to, the state shown in Fig. 3 occurs, and the front insulator 24 of the plug is pushed by the front insulator 28 on the receptacle side, and the rear insulator resists the elasticity of the spring 25. 1@, expose the -n 20 to the receptacle side, and connect it to the socket 8.

At this time, the central insulator 10 on the receptacle side moves to the front insulator 211 @ against the elasticity of the spring 319 due to the connection between the separating and connecting device 26 and the corresponding member 11, so that the socket 8 is connected to the socket contact 12. , the connection between the plug body and the receptacle 1 is completed, and the rocket 9 is ready for launch.

1. Next, when a rocket is launched via a control device (not shown) provided in the umbilical tower 14, the plug body and the receptacle are separated, and the plug body P is divided by its own weight and the weight of the cable 13 as shown by the dotted line. falling,
It collides with the catch net section 15 provided below the umbilical tower 14.

However, according to the present invention, at the moment when the plug body separates from the receptacle, the receptacle 7 returns to the state shown in FIG. The state returns to state B, and after this, the bin 20 is moved to the front insulator.
24 is protected.

Therefore, even if the plug body collides with the catch net portion of the umbilical tower as described above, the bottle will not be broken, and it can be protected from flames or smoke caused by the launch of the rocket 90.

[Invention O effect]

By applying the present invention, the following effects can be obtained.

(1) Improved quality and reliability of rocket launch equipment. Therefore, by reducing the number of failures of this connector and the secondary disasters caused by this, the risk to rocket launch performance will be reduced, and the reliability of launch technology will be improved as well.

(2) The umbilical connector has a long service life, and the replacement work or partial repair/repair of this connector after each Kali rocket launch has been greatly improved, resulting in a reduction in maintenance and maintenance costs.

[Brief explanation of the drawing]

Fig. 1A is a front view of the plug body, Fig. 1B is a side view thereof, Fig. 2A is a sectional view of the receptacle (the present invention and the conventional one are exactly the same), Fig. 2B is the plug body. Figure 3 is a cross-sectional view of the main parts in a detached state, Figure 3 is a cross-sectional view of the receptacle and plug body in a constricted state, Figure 4 is a comprehensive diagram showing the relationship between the rocket and the umbilical tower, and Figure 5 is an outline of a conventional plug. FIG. P...Plug body, 20...Contact bin, 21
1st insulator, 24・-@2 insulator. Figure 1 (A) Figure 1 (B)

Claims (1)

[Claims] In a device capable of connecting a large number of contact pins each connected to a plug side by an electric wire to a receptacle on the fuselage side of a rocket or the like, a first (rear) insulator is fixed to the shell on the plug side, and the first (rear) insulator is fixed to the shell on the plug side, and A second (front) insulator having contact pins implanted therein faces the one insulator and is movable and on which a large number of contact pins can slide respectively, and is provided so as to be constantly separated from the first insulator by spring pressure; When the plug is coupled to the receptacle, the second insulator moves toward the first insulator against the spring pressure to expose a number of contact pins, which are connected to the corresponding sockets of the receptacle, and the plug is detached. When the second insulator is connected to the first insulator due to spring pressure.
A contact pin protection mechanism for an umbilical connector plug that is spaced apart from a second insulator and that allows a large number of contact pins to be buried within a second insulator.