JPS60154482A - Connector assembling part - Google Patents

Abstract

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

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to a connector assembly with a filter for ground filtering radio frequency interfering signals.

BACKGROUND OF THE INVENTION A pseudomagnetic device that includes one or more capacitors and at least one ferrite material capacitor that can pass through a connector provides ground filtering of unwanted radio frequency signals! It is known to install a large array of radio frequency filters into such connector assemblies.

DISCLOSURE OF THE INVENTION It is an object of the present invention to use capacitive and inductive elements and to provide a non-productive frequency filter with additional means for suppressing voltage surges in order to obtain a low resistance path for the voltage energy. Our objective is to provide connector assembly parts.

According to the invention, at least one capacitive element.

At least one inductive element consisting entirely or -s of ferrite material, and at least one additional element consisting of voltage responsive resistive material are applied to the assembly to provide low voltage for high voltage energy. The result is a connector assembly having a radio frequency filter that is characterized by providing a resistive path to suppress voltage surges.

According to a preferred embodiment of the invention, the connector assembly comprises:
at least one circle comprising at least one capacitive disk and at least one ferrite disk and further made of a material capable of suppressing voltage surges, such as a metal oxide varistor material; It is equipped with a flat disk-shaped filter having a plate.

According to another aspect of the invention, the surge suppression material forms part of the dielectric material of the capacitor.

The invention will now be described only by way of example with particular reference to the accompanying drawings.

Referring to FIG. 1, the outer disks 10 and 1 of the filter
1 is capacitive. One internal disk 12 is a ferrite layer. External capacitive disk 1o70. B4.
dixp12ct) intermediate. 1. Surge suppression disk 1 made of a resistive material, which will now be explained in more detail.
3 has been allocated.

A center conductor 14 extends through the array of disks 10, 11, 12, 13.

Each uM disk 10.11 is made from a film of ceramic tape, which is a printed film of a solid metal such as silver/palladium. These tapes are printed every 6.45e and 2 (2,54X 2.54 C1m21)
Pressurized at several tons per square inch) to give the desired circuit arrangement u and sintered in a furnace at about 1600°C.Equivalent electrical circuit of the arrangement of FIG. 1 shown in FIG. , the center conductor 14 is AB and two capacitive disks C
,,C2, the inductive ferrite disk is shown as L and the disk of resistive material as R.

The ferrite layer can be a lossy material that is particularly capable of suppressing radio frequency signals, for example of the general formula MF 0204, the material can be cut from a sintered block or pressed and drilled in the green state to form disks.

It will be appreciated that the connector assembly of the present invention may have any number and arrangement of capacitive ferrites and resistive discs. The flat disk array of FIG. 6 is arranged as shown and includes one or more capacitive discs 10, 11, . It can be made from one or more inductive ferrite discs 12 and one or more discs 13 of varistor material. For ease of illustration only, the discs are separated in the axial direction of the filter.

When assembled, the connector can include any number of capacitive, inductive, and surge-suppressing voltage-responsive resistive array layers, which can be assembled sequentially, and which array can have any value. can have a capacitance and an inductance of The frequency response and the equivalent circuit will therefore be modified in that case.

A surge suppressor disk 13 is included in the connector assembly;
Cables and attached equipment are protected from overvoltage conditions, such as those resulting from electromagnetic pulses or lightning strikes, by providing a low resistance path for high voltage energy.

Such a function requires a certain threshold fi of the applied voltage level.
It is made from a material whose resistance to current flow decreases when α is exceeded. That is, materials exhibiting this property (for example, materials based on zinc oxide).

or magnesium oxide-based materials) metal oxide varistor materials, silicon carbide, titanate-based materials, etc.

Typical voltage/current characteristics of such surge suppressing materials are shown in FIG.

Such a varistor material is made of fine particles 1, for example, when pressurized,
Alternatively, the zinc oxide may be combined with certain addenda and sintered at high temperatures to provide a solid part. These components can also be fabricated using the electrode/mechanical structures used to create arrays of multilayer ceramic disk capacitors.

metal oxide varistor material I-K Vα It has current/voltage characteristics expressed by: here ■ is the voltage applied between a pair of electrodes.

■ is a radio wave flowing between the electrodes, K is a constant that depends on the physical quantity of the part, the composition of the material, and the process used to manufacture the part, and α is a constant related to a certain region of current. There it is.

It is a measure of the nonlinearity of I/V characteristics.

The voltage-dependent properties are the result of a large number of crystal contacts forming a complex network of series and parallel connected resistors.

This nonlinear bulk phenomenon is both homogeneous, and the voltage limiting effect is instantaneous in practice. Heat generation and absorption is uniformly distributed through this material, and the heat conductivity is good to dissipate the generated heat.

/")Z*7#1R(1)Ij"[44"21°1・"
“, is within 1 circle.The mechanical /
The component constructed with the electrode geometry has both surge suppression and capacitance properties. What are the capacitance characteristics in question?

Surge suppression concerns signals below the effective "clipping" voltage.

The effective ripping voltage depends on the specification, pcess, etc., and ranges from a few volts to kilovolt levels.

The flat disk filter and surge suppressor connector assembly of the present invention provides a structure that is less costly to manufacture and assemble than currently known configurations;
Further, the present invention provides a '1-chip component which is superior in operating efficiency to the above-mentioned known configurations.

[Brief explanation of drawings]

FIG. 1 is a 1,000-disk array consisting of discs of capacitive, reconducting, and voltage-responsive material. FIG. 2 is an equivalent circuit diagram of the arrangement shown in FIG. FIG. 6 is a schematic diagram showing the configuration of a flat disk-like arrangement of connector assembly parts. FIG. 4 is a graph showing typical characteristics of materials used in the surge suppressor portion of the connector assembly. 10.11... Capacitive disk 12... Ferrite disk 13... Surge suppression disk 14... Center conductor. Agent Akira Asamura

Claims (6)

[Claims] (1) A method for suppressing voltage surges in a connector assembly including a radio frequency filter using at least one capacitive element and at least one inductive element consisting in whole or in part of ferrite material. Connector part, characterized in that at least one element made of a resistive material of possible voltage response is additionally inserted into the assembly to provide a low resistance path for high voltage energy. (2) A connector assembly according to claim 1, characterized in that the connector assembly comprises a disk in which the capacitive, inductive and resistive elements are assembled in parallel arrangement, respectively, and is characterized by a flat disk-like arrangement. (3) To provide a low-resistance path to ground for high-voltage energy, at least one surge suppression element υσ is configured to 2. A connector assembly as claimed in claim 1, wherein the connector assembly is made of a material capable of reducing its resistance to flow. (4) A connector assembly according to claim 6, wherein the material is a metal oxide varistor material 9, such as a zinc oxide-based material or a magnesium oxide-based material. 5. The connector assembly of claim 3, wherein said material is a silicon carbide or titanate based material. (6) In a connector assembly including a radio frequency filter using at least one capacitive element and at least one inductive element consisting in whole or in part of a 7-elite material, said at least one capacitive element. The dielectric material of the magnetic element includes a voltage-responsive resistive material capable of suppressing voltage surges. A connector assembly characterized by providing a low resistance path for high 7-pressure energy.