CN2450845Y

CN2450845Y - Dynamic balanced earpiece

Info

Publication number: CN2450845Y
Application number: CN 00257703
Authority: CN
Inventors: 王宇航
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-10-30
Filing date: 2000-10-30
Publication date: 2001-09-26
Anticipated expiration: 2010-10-30

Abstract

The utility model relates to a dynamic balanced earpiece, with the purpose of maintaining the balance between the pressure in ear canals and the pressure of the atmospheric air and maintaining the suitable temperature and humidity in ear canals, which is beneficial to protect hearing. The utility model is characterized in that the earpiece can form an airflow channel with communicated inside and outside through an adjustable back cover. The utility model is suitable for use in mobile phones, personal stereos and language teaching.

Description

The dynamic equilibrium earphone

The utility model relates to a kind of earphone.

At present, common earphone, the large-scale earphone that micro earpieces of using with walkman and speech room are used is an example, does not allow the pore of the inside and outside convection current of atmosphere on the earphone, like this, earphone in use, environment obturation in the ear can cause many disadvantageous consequences: first, the air pressure imbalance of ear-drum both sides, perhaps can not keep dynamic equilibrium, influential to auditory effect, especially influence tonequality, tone color etc.The second, because a variety of causes such as vibration, electromagnetic action, duct secretion make the interior temperature of duct higher, humidity is bigger, and breed bacteria causes tympanitis etc., thereby influences hearing easily, and the case report of becoming deaf is arranged.The 3rd, in public places,, also easily cause traffic accident because external reaction is insensitive.

The purpose of this utility model is the earphone of a kind of adjustable, internal and external equilibrium of design.

The purpose of this utility model, be achieved like this: behind the loud speaker of earphone, have and extraneous hole or the groove that communicates, hole or groove have movable lid, adjust the size of hole or groove effective area by regulating lid, thereby select the gaseous exchange degree according to external environment condition.Because square relation of being inversely proportional to of the sound intensity and distance; so; outside " noise " is very little to the acoustics influence of earphone; otherwise earphone is just more ignored to the influence of environment, uses the main purpose of earphone; be exactly not influence environment and other people; or protection individual's privacy, do not disturbed by " noise " in the environment, be secondary objective.

Advantage of the present utility model is a lot; keeping ear-drum both sides air pressure balance; guarantee outside tone color, the tonequality; the convection current of the inside and outside gas of duct helps reducing humidity, temperature in the ear, can effectively suppress growing of some bacteriums; the health of protection duct; in addition, can react delicately to the abnormal noise or the warning sound of external environment condition, this is very necessary to the personal safety that guarantees the public place.

Below, reach accompanying drawing with reference to exemplary embodiments, the utility model is described in further detail.

As figure, be cutaway view of the present utility model, among the figure: the 1-protecgulum; The 2-cavity; The 3-hole slot; The 4-bonnet; The 5-handle; The 6-lead; 7-bonnet positioner; The 8-loud speaker.

In the use, by regulating bonnet, the bonnet hole slot is communicated with the cavity hole slot, by cavity and protecgulum hole, gas communicates with atmosphere in the duct, reaches purposes such as air pressure balance, temperature, humidity suit, owing to have only the part hole slot on cavity and the bonnet, so, regulate lid and can regulate effective hole slot area, so that do suitable adjusting according to external environment condition.

Claims

1, dynamic equilibrium earphone is made of protecgulum, loud speaker, cavity, bonnet etc., and it is waited to levy and is: corresponding hole or groove are arranged, the effective area size of bonnet scalable hole or groove in the subregion of cavity and bonnet.