Earphone

Abstract

The invention relates to insert earphones and anti-radiation insert earphones, which comprise an earphone head and a sleeve (1), a tone cavity (2), a sound wave transmission channel (3), a micro loudspeaker shell (4), a micro loudspeaker (5), a microphone (6), a microphone shell (7), a conducting wire (8) and a plug (9), wherein the channel is arranged between the tone cavity and the micro loudspeaker, the channel is made of insulating materials, the micro loudspeaker is separated from or integrated with the microphone and comprises the micro loudspeaker shell, wherein the micro loudspeaker is located on one end of the micro loudspeaker shell, the earphone head and the sleeve are located on the other end of the shell, the middle part is the sound wave transmission channel, the micro loudspeaker, the microphone, the conducting wire and the plug are connected in turn, the conducting wire uses a shielding shielded wire, which is characterized in that the length of the channel is 155-600mm, the volume of the tone cavity is 600-3000mm3, a small hole is arranged on an outlet of the tone cavity, which enables the tone cavity to form a small sound box with the diameter of 1.5-4mm, and the insert earphones are suitable for using on communication equipment with strong radial line such as mobile phones.

Description

technical field [0001] The present invention relates to an earphone, and more specifically, relates to a radiation-proof earphone and a stereo anti-radiation earphone for communication equipment such as mobile phones and other high-frequency magnetic fields with strong radiation. Background technique [0002] Commonly used earphones, such as the miniature earphones on the mobile phone, include plugs, wires and earplugs, and the earplugs are equipped with a movement (i.e. a micro-speaker). Because the mobile phone is directly used to make and receive calls, the harmful radiation such as the ultra-high frequency magnetic field generated by the mobile phone will seriously stimulate the human brain and affect human health. People often use earphones to answer and call mobile phones to reduce the ultra-high frequency magnetic field and radio waves. , heat and other radiation damage to the human brain. However, the ordinary earphones that directly install the micro-movement in th...

AI Technical Summary

Problems solved by technology

However, ordinary earphones that directly install micro-movements in the earplugs still cannot avoid the danger of radiation such as ultra-high frequency magnetic fields being transmitted to the inside of the ear through the earplugs to the brain.

In addition, the low-frequency magnetic field carried by the earplugs with built-in micro-movements will also cause damage to the human brain.

Therefore, long-term and high-frequency use of mobile phones or such earphones are prone to headache, dizziness, numbness and other symptoms

[0003] The anti-electromagnetic radiation earphone of prior art is as patent No.: ZL02244828.4, and the name is called: non-radiation earphone, though can reduce electromagnetic radiation, because its acoustic channel is too short: only: 5-10cm, can't reach The requirement of 2mG (milligauss, the same below) or below 2mG, and the control at 2mG or below is because the magnetic field is harmful to the human body. It was proposed by the inventor of the mobile phone, a Ph. Requirement, therefore, the earphone of prior art can not satisfy above-mentioned anti-electromagnetic radiation requirement, also does not have sound cavity simultaneously, therefore, frequency response is bad; The application document also discloses an earphone. Although the application discloses the sound wave transmission channel, it does not disclose the specific length of the sound wave channel.

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