JPH0139429Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a wire connector with excellent radiation resistance and vibration proofing properties.

When wiring electrical wires for measuring instruments, etc. inside the reactor containment vessel, a connector with a contact is sometimes attached to the end of the wire, and this connector is connected to the contact of a receptacle attached to the equipment inside the containment vessel.

In this case, the connector requires thorough measures against radiation.

However, vibrations are transmitted to the contacts of the connector through the electric wires on the equipment side, and over the long term, this vibration can lead to a decrease in the insulation between the contacts and the connector insulator, and eventually lead to circuit breakage. Since this may be the cause, countermeasures must be taken against this.

The electric wire connector according to the present invention has been devised in view of the above-mentioned points, and a terminal conductor having a contact attached to its tip is passed through a wire terminal penetration hole provided in an insulator partition, and This structure is characterized in that a vibration isolating material made of polyetheretherketone is provided between the insulator partition and the contact to lock the contact to the body partition and absorb the vibration of the contact.

The present invention will be explained below with reference to the drawings.

In the figure, 1 is a casing, and the casing 1 is attached to the receptacle (not shown) of the equipment in the reactor containment vessel described above. Reference numeral 2 denotes an insulating partition wall (made of polyimide resin, for example), in which a hole 21 for passing the wire end is provided. 3 is a stopper fitting fixed to the conductor 4 at the end of the electric wire by compression, 5 is a hollow conical radiation-resistant vibration isolating material, and 6 is the terminal conductor 4
A pin contact (a socket can also be used instead of this pin contact) is compressed and connected to It is locked in the hole 21 of the body partition wall 2.

That is, the vibration isolating material 5 also plays the role of a locking material that prevents the pin contact 6 from slipping out from the wire end through hole 21.

A pin contact is provided to protrude from the insulator partition surface through a vibration isolating material.

As described above, the receptacle of the end of the connected electric wire is connected to this pin contact, and vibrations are transmitted through the connected electric wire. However, this vibration can be absorbed by the above-mentioned vibration isolating material, and the tightness of the penetration state of the electric wire end into the above-mentioned insulating partition wall can be well maintained. Therefore, due to the effect of the vibration isolating material and its radiation resistance, safety for the circuit of the wire connector can be well maintained.

The vibration isolating material 5 mentioned above has the following general formula: A polyetheretherketone shown in is used. Polyetheretherketone has excellent radiation resistance, moderate elasticity as a vibration isolating material, and heat resistance, so even if the wire connector of this invention is used in a radiation environment, it will not cause any radiation. Demonstrates good vibration isolation effect without deterioration.

As described above, the connector according to the present invention has excellent radiation safety and is useful for wiring electric wires in nuclear reactor containment vessels.

In addition, in the present invention, the insulator partition wall 2 described above is
If the polyether ether ketone described above is used, the effects of radiation resistance, vibration isolation, and heat resistance as a connector will be further improved, which is desirable.

[Brief explanation of the drawing]

The drawing is an explanatory diagram showing a wire connector according to the present invention. In the figure, 2 is an insulator partition, 21 is a wire terminal through hole, 4 is a terminal conductor, 5 is a vibration damping material made of polyetheretherketone, and 6 is a pin contact.

Claims (1)

[Scope of utility model registration request] Polyether ether ketone for allowing a terminal conductor with a contact attached to its tip to pass through a wire terminal penetration hole provided in an insulator partition wall, to lock the contact to the insulator partition wall, and to absorb vibrations of the contact. An electric wire connector characterized in that a vibration isolating material consisting of is provided between an insulating partition wall and a contact.