JPH01100879A - Ic socket with capacitor - Google Patents

Abstract

PURPOSE:To remove a disturbance electromagnetic wave at its generating source by giving a filtering effect to an IC socket pin proper for an IC socket pin of a noise generating source. CONSTITUTION:On an IC socket 1 with capacitor, earthing pins 2, power supply pins 4, and other signal pins 3 are buried. The signal pin 3 furnishes a contact 6 inside a sleeve 5, and the contact 6 is contacted to the IC pin. Furthermore, at the outer side of the sleeve 5, a signal electrode 8 and a dielectric 7 with an earthing electrode 9 are inshalled. The dielectric 7 itself forms a permeating type capacitor, and has a filtering effect. By using such a signal pin 3, and by composing the IC socket 1 with capacitor of the structure in which earthing electrodes 9 are contacted to earthing pins 2 through an earthing plate 10, the filtering effect of the signal pins 3 can be utilized. Therefore, the noise can be removed at its generating source.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an IC socket with a capacitor mounted on a printed circuit board of an electronic computer, etc., and particularly relates to an IC socket with a capacitor that can prevent leakage of interfering electromagnetic waves. .

[Prior art]

Since 1986, Japan has also begun regulating interfering electromagnetic waves leaking from information processing equipment.

In addition, as countermeasures against this electromagnetic interference, methods such as strengthening the ground, shielding, or inserting a filter into the cable are adopted.

For example, in the device described in Japanese Utility Model Publication No. 62-14625, a feedthrough capacitor is embedded in the pin of the connector to eliminate noise emitted to the outside through the cable.

This method does not eliminate the noise at its source, but instead uses a cable that exits from the device as an antenna to eliminate the noise emitted at the connector at the cable exit.

[Problem that the invention seeks to solve]

In the above conventional technology, no consideration is given to the connection from the noise source to the connector.
There was a problem in that the wiring pattern on the printed circuit board from the C pin to the connector became an antenna, and noise was emitted to the outside of the device.

In addition, in order to eliminate noise caused by this type of noise, it is necessary to create a shield structure for the equipment casing, either by constructing the equipment casing with metal or by applying conductive coating to the inner surface of the equipment casing. However, there was a problem in that the noise removal cost increased.

SUMMARY OF THE INVENTION An object of the present invention is to provide an IC socket with a capacitor that can overcome these problems and eliminate interference electromagnetic waves emitted to the outside at the source.

Means for Solving Problem c] In order to achieve the above object, the IC socket with a capacitor of the present invention has at least an IC socket pin corresponding to a ground terminal and an IC pin corresponding to a noise generation source in the IC socket. 1. Between one IC socket pin. The feature is that it has a filter effect by connecting a dielectric material.

[Effect]

In the present invention, noise is removed by the IC socket pin by providing a filter effect to the IC socket pin corresponding to the IC pin that is the source of the noise.

Therefore, by mounting the noise source IC on the printed circuit board using an IC socket with a capacitor, noise will not propagate onto the printed circuit board, and the external cable or printed circuit board wiring will become an antenna. It is not released outside the device housing.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the external appearance of an IC socket with a capacitor according to a first embodiment of the present invention, FIG. 2 is a configuration diagram of a signal pin in the first embodiment of the present invention, and FIG. FIG. 3 is a configuration diagram of a ground pin and a power supply pin in a first embodiment of the present invention.

As shown in FIG. 1, a ground pin 2, a power pin 4, and other signal pins 3 are buried on the IC socket 1 with a capacitor of this embodiment, and the ground pin 2 is connected to each signal pin by a ground plate 10. 3 can be connected.

Also, this ground pin 2. The power supply pin 4 is similar to a commonly used IC socket pin, and includes a sleeve 5 and a contact 6, as shown in FIG.

Further, as shown in FIG. 2, the signal pin 3 is provided with a contact 6 inside the sleeve 5, and this contact 6 comes into contact with an IC pin (not shown). Further, on the outside of the sleeve 5, a signal electrode 8. A dielectric 7 having a ground electrode 9 and a ground electrode 9 is attached, and this dielectric 7 itself forms a feedthrough capacitor and has a filtering effect.

The filter effect of the signal pin 3 can be utilized by using the signal pin 3 having such a configuration and configuring the capacitive IC socket 1 having a structure in which the ground electrode 9 is connected to the ground pin 2 through the ground plate 10. Can be done.

In other words, using this condenser IC socket 1,
By mounting an IC that is a source of interference radio waves on a printed circuit board, it is possible to remove noise at the source.

FIG. 4 is a configuration diagram of a single pin socket with a capacitor in a second embodiment of the present invention.

The single pin socket with capacitor of this example has sleeve 5
, contact 6, dielectric 7, signal electrode 8°, ground electrode 9.
and a wire 21, which are soldered to a printed circuit board.

In other words, the signal pin 3 in the first embodiment is connected to the oscillator,
Used as a single pin socket that can also be used for transistors, etc.

Further, since this embodiment uses a single pin, the signal passes through the wiring on the printed circuit board, but for the ground, a wire is wound around the single pin socket with a capacitor and connected to a nearby ground on the printed circuit board.

Note that a groove is provided around the pin for easily winding the wire.

〔Effect of the invention〕

According to the present invention, since it is possible to remove interfering radio waves at their source, it is possible to construct a device casing at a lower cost.

In addition, even after the equipment is assembled, it is possible to easily mount the IC that is the source of the jamming radio waves and prevent the leakage of the jamming radio waves, thereby shortening the period of countermeasures against the jamming radio waves and causing a negative impact on other equipment. Not at all.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the external appearance of an IC socket with a capacitor according to the first embodiment of the present invention, FIG. 2 is a configuration diagram of a signal pin in the first embodiment of the present invention, and FIG. 3 is a diagram of the present invention. FIG. 4 is a configuration diagram of a ground pin and a power supply pin in the first embodiment of the present invention, and FIG. 4 is a configuration diagram of a single pin socket with a capacitor in the second embodiment of the present invention. 1: IC socket, 2: Ground pin, 3: Signal pin, 4:
Power pin, 5 sleeves, 6: contact, 7: dielectric, 8: signal electrode, 9: ground electrode. 10: Ground plate, 41: Wire rod. Figure 1

Claims (1)

[Claims] 1. An IC socket with a capacitor, characterized in that a dielectric is connected between an IC socket pin corresponding to a ground terminal of the IC and at least one IC socket pin other than the IC socket pin.