CN2529479Y

CN2529479Y - Stephoscope earphone

Info

Publication number: CN2529479Y
Application number: CN 02205529
Authority: CN
Inventors: 朱斯忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-03-04
Filing date: 2002-03-04
Publication date: 2003-01-01
Anticipated expiration: 2012-03-04

Abstract

The utility model discloses a stephoscope earphone taking the shape and the stereo structure of a medical stethoscope. The utility model mainly comprises two resonant cavities(1), two loudspeakers(2) and two resonant cavity covers(3). The earphone is connected with the output terminal of a power amplifier through a signal cable(7) and a plug(8). The two resonant cavities(1) are respectively provided with a sound conducting pipe(4), one end of the sound conducting pipe is connected with the resonant cavities while the other end leads to the auricle. The opening terminal of the sound conducting pipe is sleeved with a protecting pad(5). The left and right sides of the opening terminal are connected into an integrity through the springy connecting bar(6). The stethoscope earphone has the advantages of colorful bass, more comfortable and convenient application.

Description

Sthethoscope earphone

Technical field

The utility model relates to the sthethoscope earphone of a kind of earphone, particularly a kind of dual track.

Background technology

Earphone has been widely used in all trades and professions as a kind of pocket-size listening device, and it is with small and exquisite, convenient and interference environment and popular to people deeply not.

Existing earphone is divided into two classes from wearing mode, i.e. headphone and PlayGear Stealth.With regard to tonequality, the former generally is better than the latter; With regard to comfortableness, then just opposite.Headphone adopts enclosed construction more, and these enclosed earphone bands are on auricle, because the flexible effect of ear frame, the time produces pain and sense of depression once the long people's ear that makes, and uses even produce deafness for a long time, has a strong impact on health; And earplug occurs wearing unstable phenomenon again owing to there is not fixed support.

Sthethoscope earphone has been drawn the advantage of above-mentioned two kinds of earphones, the more important thing is the quality of the remarkable tonequality of improving earphone, especially bass, and wears more convenient.

Technology contents

The purpose of this utility model is that invention is a kind of with low cost, the earphone of employing under-chin structure easy to use.It can significantly improve the low-frequency effect of earphone, and builds an open glitch-free acoustic surrounding for the auditor.

The utility model dual track sthethoscope earphone adopts the left-right symmetric structure, forms by a resonant cavity, a loudhailer, a resonant cavity lid, a sound guide tube and a sponge protective layer.Earphone is linked the output of power amplifier by holding wire and plug.

A sound guide tube is arranged on the resonant cavity, and sound guide tube one end links to each other with resonant cavity, and other end opening leads in the auricle.Because the effect of resonant cavity and sound guide tube, the sound wave that loudhailer sends is by phase shift, and low frequency end stretches downwards, has improved low-frequency effect; Simultaneously, because the openend of sound guide tube is less, front end has the protection of sponge protective layer, can not oppress auricle, so can not make auricle produce pain and sense of depression

Description of drawings and embodiment thereof: the utility model is further described below in conjunction with Figure of description.

Fig. 1 is a sthethoscope earphone appearance structure schematic diagram.

As shown in Figure 1, sthethoscope earphone is the dual track structure, mainly is made up of two resonant cavities (1), two loudhailers (2), two resonant cavity lids (3), and earphone is linked the output of power amplifier by holding wire (7) and plug (8).

A sound guide tube (4) is arranged respectively on two resonant cavities, and sound guide tube one end links to each other with resonant cavity, and other end opening leads in the auricle.The openend of sound guide tube is surrounded by neonychium (5).(6) being a rubber-like connecting rod, can be metal material, also can be plastic material, and the elasticity of connecting rod (6) should be moderate, the excessive or too small comfortableness that all can influence when using.

The bore in resonant cavity cross section is slightly larger than the bore of loudhailer, and after loudhailer (2) embedded resonant cavity, the inner cavity that forms a sealing had only the opening of sound guide tube to communicate with the outside.Resonant cavity lid (3) plays a part the protection loud speaker, and it is packing less.Protective layer (5) is that flexible material is formed, as sponge etc., and the comfortableness when being used to strengthen earphone and wearing.

During use, the openend of sthethoscope earphone is placed in the earhole of auricle together with neonychium (5).

Loud speaker adopts full frequency speaker.

Claims

1. sthethoscope earphone; it is characterized in that: sthethoscope earphone is the dual track structure; mainly form by two resonant cavities (1), two loudhailers (2), two resonant cavity lids (3); earphone is linked the output of power amplifier by holding wire (7) and plug (8); a sound guide tube (4) is arranged respectively on two resonant cavities; sound guide tube one end links to each other with resonant cavity; other end opening leads in the auricle; the openend of sound guide tube is surrounded by neonychium (5), about link into an integrated entity by a rubber-like connecting rod (6).