JP2000059069A - Absorber for unwanted electromagnetic wave - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorber for unwanted electromagnetic, wherein the electromagnetic wave absorber produces no effect on disconnection of a cable, even if it is added to the cable that is frequently bound and unbound in use. SOLUTION: An absorber for unwanted electromagnetic wave 1 is formed of a soft magnetic loss body, where a cable 5 is inserted into the soft magnetic loss body, unwanted electromagnetic waves that flow into the cable 5 from the outside or radiate from the cable 5 are converted into thermal energy and consumed by the soft magnetic loss body, and a sheathing material 2 is provided to the soft magnetic loss body to protect and fix it, and a cable binder that can be repeatedly used is added to the sheathing material 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable for electronic equipment, which suppresses unnecessary electromagnetic waves radiated from the cable.
Alternatively, the present invention relates to an unnecessary electromagnetic wave absorber for reducing a surge current flowing into a cable from the outside.

[0002]

2. Description of the Related Art In the prior art, FIGS.
As shown in FIG. 6, as a means for protecting and fixing a sleeve-like soft magnetic loss body (generally a ferrite core) through which a cable can be inserted, insert molding with a resin or an appropriate position of the cable using a resin clamp type case. It is fixed to.

[0003]

In the conventional unnecessary electromagnetic wave absorber, the unnecessary electromagnetic wave absorber is added when the cables are bundled when the attached cable is not used, that is, when the cable is stored. There was an inconvenience. Normally, when these cables are bundled using a tying tool, the state shown in FIG. 4 or FIG. 5 is obtained. The disadvantage is that the cables at both ends or near one end of the unnecessary electromagnetic wave absorber in the figure are extremely bent. This means that the core wire, that is, the conductor, in this part is significantly stressed. This repetition causes a false or complete disconnection of the cable, and significantly lowers the reliability of the information equipment or renders it unusable. The present invention seeks to overcome this disadvantage.

[0004]

Means for Solving the Problems In order to achieve the above object, in the unnecessary electromagnetic wave absorbing device of the present invention, a cable bundle that can be repeatedly used for an exterior body for fixing and protecting a soft magnetic loss body is provided. It is the one to which the tool was added.

[0005] Cable ties that can be used repeatedly include:
Velcro ™, also known as Magic Tape ™
Fasteners or Velcro-like fasteners, cord bands, repeatable cable ties, beaded bands,
An omega-type fastener or the like is suitable, but a vinyl binding material (commonly called vinylite) containing a metal wire or a string may be used.

[0006] A holding portion for holding the reusable cable binding device is provided on the exterior body side of the unnecessary electromagnetic wave absorbing device.

[0007]

The operation of the present invention having the above-described structure will be described with reference to the schematic diagram of FIG. 3. When storing a normal cable or the like, the cable 5 is first wound up in a loop shape, and then tied into a figure eight shape with a tying tool. Bind and tie. At this time, assuming that the unnecessary electromagnetic wave absorber 1 is located at the position B of the cable 5, except for binding between A and B (such as between CD, EF, and GH), FIG. As shown in FIG. 5 or FIG. 5, the cable near both ends or one end of the unnecessary electromagnetic wave absorbing device described above receives stress due to extreme bending. Only in the case of binding between A and B, the preferred embodiments as shown in FIGS. 2, 7, 8, and 9 can be obtained. That is, the present invention in which the unneeded electromagnetic wave absorbing device itself is provided with the binding means solves the above-mentioned inconvenience and performs an inevitable action producing a preferable result.

According to the present invention, in which the AC adapter body and the cable bundle of the AC adapter can be integrally bound, in addition to the above-mentioned operation, a cable bundle including an unnecessary electromagnetic wave absorbing device for carrying in mobile computing or the like. The load acts as a load on a single cable connecting the AC adapter body, thereby preventing trouble caused by stress at the base of the cable.

In the present invention in which a mooring portion is provided on the AC adapter main body and the cable tying member can be moored to the mooring portion, the AC adapter main body is integrated with the cable bundle to cause the cable base to be stressed. This is to prevent trouble from occurring.

In the apparatus body such as a personal computer, a mooring section is provided for enabling the cable tying device of the present invention to be moored, and the cable tying device can be moored to the mooring portion. This prevents inadvertent erroneous disconnection, such as entanglement of the foot with a connector provided at the end of the cable.

[0011]

Embodiments will be described with reference to the drawings.
FIG. 1 uses a cord band 4 for binding an AC cord or the like to a binding device that can be used repeatedly, and a holding portion 3 for the cord band is provided at substantially the center in the longitudinal direction of the cylindrical exterior body 2 of the unnecessary electromagnetic wave absorbing device 1. An embodiment configured as shown in the figure is shown.

FIG. 2 shows an embodiment in which the present invention having the structure of the first embodiment is applied to an AC adapter.

FIG. 6 shows an embodiment in which an omega type fastener 41 is used as a binding tool that can be used repeatedly. FIG. 7 shows a state in which the cable bundles are bundled, and the omega-type fastener 41 is an opening and closing mechanism similar to a toe opening of a coin purse.

FIG. 8 shows an embodiment in which the AC adapter body 6 and the cable bundle of the AC adapter can be integrally bound. A Velcro (trademark) fastener 42 having a male and female structure on the front and back, respectively, is used as a binding device. Is used.

FIG. 9 shows an embodiment in which a mooring portion is provided on the AC adapter main body 6 and a cable tying member can be moored to the mooring portion. A cord band 4 is used as the tying member, and as shown in FIG.
The cord band 4 can be integrated by inserting the cord band 4 into the mooring portion 61 provided in the above. The mooring part can also be obtained by adding a mooring part 63 provided with a bonding means as shown in FIG. FIG.
Is a mooring means in which a Velcro (trademark) fastener is used as the mooring component and the Velcro fastener is used as a cable tying tool.

FIG. 12 shows an embodiment in which a mooring portion is provided on an electronic device main body 9 such as a personal computer, and a cable tying member is moored at the mooring portion to prevent the connector 7 provided at the end of the cable from being erroneously disconnected. is there. Although the mooring unit may be provided integrally with the apparatus main body, the purpose can be achieved by adding a mooring part 63 as shown in FIG.

[0017]

Since the present invention is configured as described above, it has the following effects.

According to the present invention, a cable bundling device that can be repeatedly used is added to the unnecessary electromagnetic wave absorbing device. Neighboring cables do not bend and are not stressed. In other words, even in the case where the bundling and release are frequently repeated, the same effect as in the case where the unnecessary electromagnetic wave absorber is not attached to the cable is not likely to be caused.

In the present invention, in which the AC adapter body and the cable bundle of the AC adapter can be integrally bound, the load of the cable bundle including the unnecessary electromagnetic wave absorber is applied to the base of the cable with the AC adapter body. Acts as a stress-free part
This produces the effect of increasing the reliability of the entire adapter system.

According to the present invention in which the mooring portion is provided on the AC adapter main body and the cable tying member can be moored at the mooring portion, the effect of increasing the reliability of the entire AC adapter system is produced as described above.

In the present invention in which a cable tying device is provided on a main body of a device such as a personal computer, the cable tying device can be moored, and the cable tying device is moored to the mooring unit.
It is possible to prevent inadvertent disconnection of the connector at the end of the cable during use of the device and to prevent inconveniences such as interruption of power supply and interruption of communication, thereby producing an effect of improving reliability of information communication.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a perspective view in which the present invention is applied to an AC adapter.

FIG. 3 is a schematic diagram illustrating the operation of the present invention.

FIG. 4 is a front view showing an inconvenient mode not according to the present invention.

FIG. 5 is a front view showing an inconvenient mode not according to the present invention.

FIG. 6 is a perspective view showing an embodiment of the present invention using an omega type fastener.

FIG. 7 is a perspective view showing an embodiment of the present invention using an omega type fastener.

FIG. 8 is a front view of the present invention applied to an AC adapter.

FIG. 9 is a front view of the present invention applied to an AC adapter.

FIG. 10 is a partial side view showing a Velcro fastener added to an AC adapter.

FIG. 11 is a partial side view showing the mooring part added to the AC adapter.

FIG. 12 is a partial perspective view of an embodiment of the present invention showing a function of preventing accidental disengagement.

FIG. 13 is a partially cutaway perspective view of an unnecessary electromagnetic wave absorbing device of the related art, which is formed by insert molding means.

FIG. 14 is a perspective view of an open state of a conventional clamp-type unnecessary electromagnetic wave absorber.

FIG. 15 is a perspective view of a state in which a conventional clamp-type unnecessary electromagnetic wave absorber is attached to a cable.

FIG. 16 is a perspective view of a conventional clamp-type resin case, a cable, and a sleeve-shaped core.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Unnecessary electromagnetic wave absorber 2 Unnecessary electromagnetic wave absorber outer sheath 3 Holding part 4 Cord band 5 Cable 6 AC adapter main body 7 Connector 8 Soft magnetic loss body 9 Electronic equipment main body 41 Omega type fastener 42 Velcro fastener 51, 52 Extreme generated in cable Bending part 61 Mooring part provided on AC adapter 62 Mooring part of Velcro fastener 63 Mooring part provided with bonding means

Claims (5)

[Claims] An unnecessary electromagnetic wave absorber that inserts a cable through a soft magnetic loss body and converts unnecessary electromagnetic waves that flow into the cable from outside or radiate from the cable into heat energy and consumes the heat energy. An unnecessary electromagnetic wave absorber, wherein a cable bundling device that can be used repeatedly is added to an exterior body for protection and fixing. 2. A cable tying device that can be used repeatedly is a Velcro (registered trademark) fastener, a Velcro-like fastener,
2. The unnecessary electromagnetic wave absorbing device according to claim 1, wherein the unnecessary electromagnetic wave absorbing device is any one of a cord band, a repeatable cable tie, a bead connecting band, an omega type fastener, a vinyl binding material containing metal wire (commonly called vinylite), and a string. 3. The unnecessary electromagnetic wave absorbing device according to claim 1, wherein the AC adapter main body and the cable bundle of the AC adapter can be integrally bound. 4. The unnecessary electromagnetic wave absorbing device according to claim 1, wherein a mooring portion is provided on the main body of the AC adapter, and the cable tying member can be moored at the mooring portion. 5. An unnecessary function according to claim 1, wherein a mooring portion is provided in the main body of the apparatus, and a cable tying member is moored to the mooring portion, thereby preventing a connector provided at a cable end from being erroneously disconnected. Electromagnetic wave absorber.