JPH05275241A - Ferrite mounting device - Google Patents

Abstract

PURPOSE:To enable easy mount of a ringed ferrite core even after a connector is attached to a signal cable. CONSTITUTION:A first division part 3A and a second division part 3B of a ringed ferrite core which is divided into two in a surface which is parallel to each of an axis of symmetry are fixed to supporting members 6A and 6B whose each one surface is opposite to each other to bring divided surfaces thereof into contact with each other. Each one side end part of the supporting members 6A and 6B is connected axis-wise in a parallel direction to the axis of symmetry of the ringed ferrite rotatively by a rotary joint 4. A screw insertion hole and a tapped hole are provided to each of the other side end part of the supporting members 6A and 6B to form a stopping part. A signal cable 2 is inserted into a center part of the first and second division parts 3A and 3B with a clearance between divided surfaces of the first and second division parts and a screw is screwed to the tapped hole through the screw insertion hole to fix the supporting members 6A and 6B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ferrite mounting tool, and more particularly to a ferrite mounting tool used for mounting a ring-shaped ferrite on the outer peripheral portion of a cable for absorbing unnecessary high frequency components propagating in the cable. Regarding the ingredients.

[0002]

2. Description of the Related Art FIG. 3 is an explanatory view showing how a conventional ferrite is attached to a cable.

A housing 7 of a computer, which is one of the information processing apparatuses, is provided with a connector 5 connected to a connector (not shown) and a signal cable 2 having one end connected to the connector 5.

The other end of the signal cable 2 is drawn out to the outside through a cable passage opening 1A provided in the computer housing 7 and is connected to another device not shown.

In such a signal cable, an unnecessary high frequency component generated in the device housing the cable may be coupled and transmitted to the device on the other side, which may cause a malfunction. In order to absorb and reduce the unnecessary high frequency signal transmitted in the cable, the unnecessary high frequency signal component in the signal transmitted in the signal cable 2A is absorbed like the signal cable 2A on the right side of FIG. There is provided a ferrite core 3C for doing so.

The ferrite core 3C has a ring shape, and the signal cable 2A is wound around the ring portion of the ring-shaped ferrite 3C one or more times at an appropriate number of times.

[0007]

The signal cable 2 for connecting the computer having the above-mentioned computer housing 7 to another external device is pulled out to the outside through a cable passage opening 1 provided in the computer housing 7. Therefore, unnecessary high frequency band signals attracted to the internal cable of the computer connected to the signal cable 2 via the connector 5 inside the computer are not attenuated by the signal cable 2 and are not shown in the figure. However, the ferrite core 3A has a drawback that it causes a malfunction of other devices not shown in the figure, and the ferrite core 3A for absorbing such unnecessary high frequency band signals. To attach the cable to the signal cable 2A, attach at least one of the connectors to be attached to both ends of the cable. It not must keep in advance attached a ferrite core 3A to the signal cable 2A before applying Ri, the mounting of such ferrite cores 3A has a drawback that it requires a long time.

An object of the present invention is to provide a ferrite mounting tool which enables the ferrite core to be easily mounted even after the connectors are attached to both ends of the signal cable 2.

[0009]

DISCLOSURE OF THE INVENTION The ferrite fitting of the present invention is divided into a first divided portion and a second divided portion on a plane parallel to the axis of symmetry of the ring, respectively. The first split portion has a first flat portion parallel to the split surface of the first split portion and one or more ring-shaped ferrite cores that form a ring when the split surfaces of the split portion are joined to each other to absorb high frequency components; A first supporting member for fixing the first divided portion by slightly protruding the divided surface of the divided portion to the outside of the first flat portion, and a second flat portion parallel to the second divided surface. When the plurality of ring-shaped ferrite cores are provided, the split surface of the second split portion is slightly projected outward from the second split surface, and the first surface and the second surface are separated from each other. When facing each other, the split surfaces of the first and second split portions contact each other to form a ring. A second support member for fixing the second divided portion so that the first and second flat surfaces face each other at side end portions of the first and second support members. And the second divided portion are in contact with each other to form a ring, and are rotatable about an axis parallel to the axis of symmetry of the ring formed by the first and second divided portions. And a means for locking the first and second support members in a state where the divided surfaces of the first and second divided portions are in contact with each other.

[0010]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a partial perspective view showing an embodiment of the ferrite mounting tool of the present invention, and FIG. 2 is a front view of FIG.

As shown in FIG. 1, the ferrite fitting of the present invention comprises a plurality of ferrite cores each of which is composed of a first divided portion 3A and a second divided portion 3B which are divided into two parts by a plane including the axis of symmetry of the ring. 3 and a support member 6A for fixing the plurality of first divided portions 3A with their divided surfaces slightly protruding from one plane.
And the dividing surface of the second dividing portion is projected slightly outward from one plane so that the dividing surface of the second dividing portion contacts the dividing surface of the first dividing portion and the first and second A support member 6B which is arranged and fixed so as to form a ring at the divided portion of
And a rotary joint 4 that rotatably connects the side ends of the second support members 6A and 6B, a screw insertion hole 9 provided in the other side end 6 of the support member 6A, and a screw 8. The support member 6 </ b> B is provided with another side end portion, and is configured with a screw hole 10 that is screwed into the screw 8.

With respect to the dividing surface of each of the first dividing portion 3A and the dividing surface of the second dividing portion 3B, the supporting member 6A rotates with respect to the supporting member 6B, and the dividing portions 3A and 3B face each other. Then, the dividing surfaces of the dividing portions 3A and 3B come into contact with each other and the dividing portion 3
A support member 6 is formed so that A and 3B form one ring.
The dividing portion 3A is fixed to A and the dividing portion 3B is fixed to the support member 6B.

The screw insertion hole 9 and the screw hole 10 described above form a locking portion. Now, insert a portion of the signal cable 2 whose one end is attached to the connector 5 close to the connector 5 into the portion of the cable passage opening 1 formed by the first divided portion 3A and the second divided portion 3B as shown in FIG. Then, the screw 8 is inserted from the screw hole 9 in a state where the split surface of the first split portion 3A is in contact with the split surface of the second split portion 3B, and the screw 8 is screwed into the screw hole 10 to support the support member 6A. By fixing 6B and 6B, the ferrite 3 can be easily attached to the outer peripheral portion of the signal cable 2 with the connector 5 attached to the signal cable 2.

The first divided portion 3A and the second divided portion 3B may be fixed in advance to the support members 6A and 6B by the same number as the signal cables to be attached, and the first divided portion 3A is also fixed. The inner diameter of the ring formed by the second split portion 3B and the outer diameter of the signal cable 2 to be mounted may be substantially the same.

[0016]

As described above, in the ferrite fitting of the present invention, the ring-shaped ferrite core is divided into two parts on a plane parallel to the axis of symmetry, and the respective divided surfaces can be in contact with each other. Fixed to the support members of the signal cables, and the side ends of these support members are rotatably connected to each other by rotary joints, so that the outer circumference of the signal cable can be easily and quickly provided even after the connectors are attached to both ends of the signal cable. It is possible to attach a ferrite core in a ring shape to the portion, and it is possible to reduce unnecessary high frequency components transmitted in the signal.

[Brief description of drawings]

FIG. 1 is a partial perspective view showing an embodiment of a ferrite mounting tool of the present invention.

2 is a front view of the ferrite fitting of FIG. 1. FIG.

FIG. 3 is an explanatory view showing a state in which a ferrite core for attenuating an unnecessary frequency band is attached to a conventional signal cable.

[Explanation of symbols]

 1 Cable Passage Port 2 Signal Cable 3 Ferrite Core 4 Rotating Joint 5 Connector 3A First Divided Part 3B Second Divided Part 6A-6B Support Member

Claims (1)

[Claims] 1. A ring is formed when the divided surfaces of the first and second divided portions are joined to each other by a plane parallel to the axis of symmetry of the ring and divided into a first divided portion and a second divided portion. However, it has one or more ring-shaped ferrite cores that absorb high-frequency components, and a first plane portion parallel to the division surface of the first division portion, and the division surface of the first division portion is slightly defined by the first division portion. A first supporting member for projecting to the outside of the flat surface portion to fix the first split portion, and a second flat surface portion parallel to the second split surface, and a split surface of the second split portion. When there are a plurality of ring-shaped ferrite cores that slightly project outward from the second split surface, and when the first surface and the second and second surfaces are opposed to each other, the first and second respective surfaces are provided. A second fixing portion for fixing the second dividing portion so that the dividing surfaces of the dividing portion contact each other to form a ring. When the first and second planes face side ends of the support member and the first and second support members, the first and second divided portions contact each other to form a ring. And a rotary joint for mounting the first and second support members rotatably around an axis parallel to the axis of symmetry of the ring formed by the first and second divided portions, and the first and second And a means for locking the first and second support members in a state where the divided surfaces of the divided portion are in contact with each other.