Patent Application
20140105430
1. Field of the Invention
The invention relates to an earphone wire, particularly to a radiation-resistant device arranged on signal lines.
2. Description of the Related Art
Respecting the popularity of mobile communication devices, a large number of the wireless transmission products are produced for fulfilling people's needs so various radiation waves are invisibly full of human living environment, resulting in the potential impact on human health. In particular, the mobile phone is the essential item in the modern life. When being close to the ear to talk on the mobile phone, the electromagnetic waves make great impact on the human brain. Therefore, to avoid the human brain damage caused by the electromagnetic waves, human can use not only the hands-free mobile phones but the earphone wire.
With the reference to
It is a primary object of the present invention to provide a radiation-resistant earphone wire to substantially reduce the electromagnetic interference for getting better audio signal and to avoid human brain damage caused by the electromagnetic waves.
In order to achieve the above object, a radiation-resistant earphone wire, comprising: signal lines including a left audio channel and a right audio channel and having an end thereof connected to a sound-source connecting plug and the other end thereof respectively connected to a speaker, wherein the signal lines has at least a radiation-resistant device on a predetermined position thereof and the radiation-resistant device including: a radiation absorber being a cylindrical body, made of a magnetic material with high permeability and having a first through hole in a middle thereof; and a radiation blocker made of a metal sleeve body and coating on an outer periphery of the radiation absorber and a top of the radiation blocker corresponding to the first through hole has a second through hole for the signal lines passing through; whereby the radiation absorber at an inner layer absorbs EMI radiation and the radiation blocker at an outer layer has a shielding effect and both the radiation absorber and the radiation blocker together form an anti-EMI structure.
The present invention further comprises a tight sleeve arranged at a bottom of the radiation absorber and having a third through hole for the signal lines passing through and the signal lines are tighten and positioned by the third through hole. Moreover, the tight sleeve can be molded with the signal lines for positioning.
Based on the features disclosed, the present invention prevents the body damage from the radiation wave and solves the problems of the conventional earphone wire.
Referring to
The present invention comprises at least a radiation-resistant device 20 on a predetermined position of the signal lines 12, including: a radiation absorber 21 being a cylindrical body, made of magnetic material with high permeability and having a first through hole 211 in a middle thereof, and a radiation blocker 22 made of a metal sleeve body and coating on an outer periphery of the radiation absorber 21. Moreover, a top of the radiation blocker 22 corresponding to the first through hole 211 has a second through hole 221 for the signal lines 12 passing through. Whereby the radiation absorber 21 at an inner layer absorbs EMI radiation and the radiation blocker 22 at an outer layer has a shielding effect. Both the radiation absorber 21 and the radiation blocker 22 together form an anti-EMI structure.
In this embodiment, the present invention further comprises a tight sleeve 23 at a bottom of the radiation absorber 21 has a third through hole 231 for the signal lines 12 passing through and the signal lines 12 are tighten and positioned by the third through hole 231. Moreover, the tight sleeve 23 can be molded with the signal lines 12 for positioning.
In this embodiment, the magnetic material may include composite material of Fe2O3, Fe3O4, Fe3C or Fe7C3.
Based on the features disclosed, the present invention has following effects:
1. Each element of the radiation-resistant device 20 is independently molded before being assembled to the signal lines 12. This kind of setting is very convenient.
2. More importantly, the radiation-resistant device 20 is composed of the radiation absorber 21 at the inner layer and the radiation blocker 22 at the outer layer forming the radiation-resistant structure. The present invention provides the high permeability magnetic material as a shielding material to absorb radiation for the basis shielding effect. However, during the test, the magnetic material has less influence on the radiation if the magnetic material does not be coated. Therefore, the prevent invention further provides the radiation blocker 22 made of metal material to increase the shielding effect and reduce impact of electromagnetic waves on the human body.
3. The radiation-resistant device 20 is able to intercept and eliminate radiation on the way of signal transmission.
Therefore, the present invention prevent provides the radiation-resistant device 20 to substantially prevent brain cells damage from the radiation wave and solve the problems of the conventional headphone wire.
Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.
