JPS6022895A - Earphone - Google Patents

Abstract

PURPOSE:To attain the convenience of listening high fidelity sound by constituting an earphone with small size and light weight so as to be accommodated in a hollow of a concha. CONSTITUTION:A diaphragm section 21 consists of a diaphragm 25 whose effective area is formed sufficiently large, a voice coil 26 and an edge 27. Further, a magnetic circuit 22 has an annular magnet 28 made of a rare-earth group cobalt magnet or the like excellent in the magnetic performance such as a samarium cobalt magnet. An annular flange section 30 projected externally is formed on the front face outer circumference of a cabinet 24. An annular folded section 34 is formed to the outer circumference of the flange section 30. A ring 36 to support the outer circumference section 35a of a protector 35 is fixed to the inside of the folded section 34.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is an extremely small and lightweight earphone designed to improve usability and wearability.

Conventional earphones used for listening to music, etc. include, for example, sealed electrodynamic earphones (generally called Guinaminoku earphones) 1, as shown in Figures 1i and 2. Also known are the so-called oven air type earphones.

By the way, the 411 person Guinaminoku! (12 earphones 1
are the coil 4, which forms the magnetic circuit 3, and the yaw 5.
An iron piece 6 is disposed in the front part of the iron piece 6, and the iron piece 6 is configured to vibrate.
A vinyl tube 9 is inserted into the listener's external canal (external auditory canal).

However, with this type of earphone, the Vinyl-Y-UB 9 must be inserted to the center of the ear canal, which has the disadvantage of giving a feeling of pressure and making it easy to strain. . In addition, since the earphone 1 is supported by the vinyl tube 9 to prevent it from coming off the JT, the iron piece 6, which serves as a vibrating center, is located far from the eardrum, which has the disadvantage that it is not possible to obtain good high-to-eye sound. there were.

In addition, the latter oven air type earphone 2 has a diaphragm 10.
Voice coil 11. Yoke 12, magnet 13, play 1
This type of earphone 2 vibrates within a magnetic circuit 15 consisting of a magnetic circuit 15 made of a diaphragm 14, etc., and this type of earphone 2 also has a ventilation hole 1 formed in the front part of the diaphragm 10, similar to the earphone 1 described above.
However, since the mounting part 18 made of urethane or the like is inserted into the ear canal of the listener, there is a drawback that a feeling of pressure may occur even if it is possible.

The present invention has been proposed in view of these conventional drawbacks.

An embodiment of the present invention will be described below with reference to FIG.

FIG. 3 is a vertical cross-sectional view showing an embodiment in which the present invention is applied to a Quinaminck type earphone, and FIGS. 4 and 5 are main views showing the state in which the earphone of the present invention is housed in the recess of the auricle. They are a front view and a partially cutaway side view.

As shown in FIG. 3, the earphone 2o of the present invention includes an electric sound "I!" converter 23 composed of a vibrating section 21 and a magnetic circuit 22, and a capacitor 20 that incorporates this converter 23.
□ 24 and 14 have been made. The vibrating section 21
i; j, the diaphragm 25 (and the annular shape of this diaphragm 25) 11 whose effective area has been formed to increase the effective area in order to contribute to good quality
It consists of a voice coil 26 mounted on the outer periphery, and an edge 27 and force for supporting the frequency 25 and the correct position. The magnetic circuit 22 also includes a ring-shaped magnet 28, such as a rare earth cobalt-based magnet with excellent 6R air coverage, such as a Zamarium Hull I-magnet, etc.
In addition to guiding the magnetic flux stopped from this magnetic force into the magnetic air gap,
It consists of a yaw 29 and a force spatula that form magnetic poles.

Furthermore, the throat 24 is the @ of the vibrating part 21.
This cabinet 24 is a temporary housing that houses components, a magnetic circuit 22, and other components, and an annular flange portion 30 is formed on the outer periphery of the front surface of the cabinet 24 so as to protrude outward.

As shown in FIG. 5, this flange portion 30 is located at the entrance of an external auditory canal (external auditory canal) 31, and also has a recessed portion 33 located at the center of a shell-like pinna 32 surrounding this external auditory canal 31. After the cabinet 1-24 is stored, the recess 33 is placed so that the earphone 20 does not come off inadvertently.
It is 1 lilj that comes into contact with the cartilage protrusion 33a formed at a predetermined position on the outer periphery of. The outer diameter of the flange portion 30 is, for example, approximately 1.8 cm.

An annular bend 1i1 (
34 is formed, and inside this bent part 34, the above-mentioned enon 27 is supported and the front part 1< of the diaphragm 25 is formed.
The outer periphery of Frodekuku 35 placed in 15th place 3521
A link 36 for supporting is fixed. the above)
The U chikku 35 has a large number of ventilation holes 3γ, 37. ...
It has a shape of 1. In addition, this -near-eye-actor-3
The front surface of 5 may be coated with an acoustically transparent material such as urethane.

4-C, in this example, it is formed on the flange 7 part 30.Thickness 4 of 1171534
r ], form about 5 mm, y1 of 11 loaves 32
It is arranged to be well stored in the 4-mi i'flt33.

Above; 1- Yabii, 1 coat 38 on the back of throat 24
3. The terminals '&39 to be connected are integrally fixed by molding 40 made of synthetic resin or the like.
, this terminal board 39 and mold capital 40. The ball 41, the magnet 28 and the yoke 29 are provided with a ridge (42) inside the cabinet I/24 and outside B.
ll is in a continuous state. Therefore, the back of Kito j'-Ino I 24 is open to space,
The unique clear and good sound quality has been cited as 1↓.

Note that a large number of ventilation holes 30a, . . . are formed in the flange portion 30 along the outer periphery of the cabinet 24.

Next, usage conditions of the earphone according to the present invention will be explained along with its effects. The earphone 2° of the present invention is housed in the recess 33 of the auricle 32 with the earpiece 35 side facing the external auditory canal 31 of the auricle 32, as shown in FIG.

The earphone 20 according to the present invention uses a normalium cobalt magnet or the like as the magnet 28 to make it a small and lightweight earphone, so it can be easily inserted into the recess 3 of the auricle 32.
It can be stored within 3.

The earphone 20 according to the present invention has a structure that allows the earphone 20 to be inserted into the external auditory canal 3 of the auricle 32.
Since it will be stored at the entrance of 1, vibration: 4M
Since the distance between 25 and the eardrum can be made close,
Coupled with the use of the above-mentioned Zamarium Cobalt magnet etc. with the magnet 28 closed and the effective area of the diaphragm 25 being made larger, it is possible to expand the locus area, and /\Enor f I can make the same sound as I4I.

Furthermore, according to the earphone 20 of the present invention, only a portion of the earphone 20 such as the outer circumferential portion of the protector 35 comes into contact with the circumference 32. It is possible to eliminate situations such as 11111 being impossible.

As is clear from the above description (7)), the e-phone according to the present invention is small and lightweight, and is configured to be stored in the recess of the auricle, making it easy to wear. It can be used for a long time, and since the distance of the eardrum from the Qin plate can be set close to the era name, it is possible to listen to the era name in high-fidelity 1K.

In addition, according to the present invention, one franc/capacity is provided on the outer periphery of the front surface of the earphone, which prevents the earphone from accidentally slipping off the auricle.

In addition, -,,! -, iMeto's older sister example (Yo, the present invention is described as a lifting platform applied to so-called da, 1'J-mic type earphones, but it can also be applied to, for example, oven air type earphones, etc.) It is.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing a conventional closed type electrodynamic earphone and bong, and FIG. 2 is a cross-sectional view showing a conventional oven air type earphone. FIG. 3 is a vertical cross-sectional view showing an embodiment of the present invention applied to a dynamic earphone, and FIGS. 4 and 5 are main parts showing the earphone of the present invention being housed and worn in the recess of the auricle. They are a front view and a partially cutaway side view. 20・・・・・・・・・・・・Earphone 21・・
・・・・・・・・・・・・Vibration part 22・・・・・・・
......Magnetic circuit 23...
...Electroacoustic converter 24...
・・・Cabinet 25・・・・・・・・・・・・・・・
・Vibration plate 26・・・・・・・・・・・・Voice coil 28・・・・・・・・・・・・Magnet 30・
......Flange part 32...
・・・・・・・・・Kusuke 33・・・・・・・・・・・・IT Mito! 1! j permission]
1 "1 Person Sony Corporation Representative Patent Attorney Akira Koike Figure 1J') 2g 8m 4aa Figure 5

Claims (1)

[Claims] The electro-acoustic transducer 1~ is formed to a size that can be accommodated in the concavity of the auricle, and the front outer periphery of the cabinet described in 2. These earphones are characterized by having a fludge part that prevents the throat from coming off the auricle.