JPH0568060U - Signal discriminator and plug with signal discriminator - Google Patents

Abstract

(57) [Summary] [Purpose] To provide easing of dimensional accuracy and inexpensive manufacturing method of discriminator for plugging. [Structure] The individual perforated portion is a longitudinal continuous hole. [Effect] Realization of an inexpensive manufacturing method.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a signal discriminator used in information processing equipment.

[0002]

[Prior Art]

 FIG. 4 shows a commonly used discriminator for removing high frequency noise of a plug of an IC or the like using a magnetic material such as ferrite having many holes. This magnetic material is introduced, for example, in JP-A-57-27100.

Each pin 3 of the plug 2 is passed through a hole 6 provided individually in the magnetic body 1 to form an independent discriminator for each pin. At this time, the high frequency noise passing through the connector 2 is absorbed by the magnetic body 1.

[0004]

[Problems to be solved by the device]

 Since the conventional discriminator is configured as described above, the dimensional accuracy of the individual holes is strict, which has been a problem in manufacturing the magnetic body. That is, in recent years, the interval (pitch) between contact plugs of ICs and the like has become narrower and the dimensional accuracy of the pitch has become higher. High dimensional accuracy is required, and there is a risk that it will not be possible to use it in the case of manufacturing methods that cannot be expected to improve processing dimensional accuracy such as powder molding.

The present invention has been made to solve the above problems, and an object thereof is to provide a discriminator that is easy to process and can be widely applied.

[0006]

[Means for Solving the Problems]

 In the discriminator according to the present invention, a perforated portion through which a contact plug such as an IC passes is formed in a flat shape such as an ellipse or an ellipse.

[0007]

[Action]

 The discriminator according to the present invention does not require high dimensional accuracy because the perforated portion is formed into a flat shape.

[0008]

【Example】

 Example 1. An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a magnetic material such as ferrite, and 5 is a perforated portion. The perforated portion 5 is formed in a laterally long shape such as an ellipse or an ellipse having a length equal to or larger than the mounting dimension in the lateral width direction of all the pins 3 of the connector 2 such as an IC.

As shown in FIG. 2, the magnetic body 1 is inserted into the pin 2 of the connector 1 to form a discriminator.

Further, a plurality of longitudinal perforated portions 7 shown in FIGS. 3A and 3B may be provided for a connector having a multi-row pin.

The perforated portion may have a rectangular shape. In any case, it is necessary to have some margin for Pin 2. However, if the gap between the magnetic body and the pin 2 is too wide, the efficiency of absorbing high frequency noise will decrease.

[0012]

[Effect of the device]

 As described above, according to the present invention, since the perforated portion of the magnetic discriminator for plugging has a single or a plurality of longitudinal holes, dimensional accuracy is not required and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a diagram illustrating an embodiment of the present invention.

FIG. 2 is a diagram illustrating an embodiment of the present invention.

FIG. 3 is a diagram illustrating another embodiment.

FIG. 4 is a diagram illustrating a conventional method.

[Explanation of symbols]

 1 Magnetic material 2 Plug 3 Pins 5, 6, 7 Perforated part

Claims (2)

[Scope of utility model registration request] 1. A signal discriminator in which a magnetic material having a longitudinal hole is inserted in an electrode of a plug. 2. A connector with a signal discriminator, in which a magnetic material having a single or a plurality of longitudinal holes is inserted.