JPH0638552Y2 - Headphone - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to headphones that are used by being mounted in the ear shell.

2. Description of the Related Art In recent years, many headphones have a structure in which a headphone unit is made smaller and attached to the inside of the auricle in addition to a method of crimping the headphone unit from the outside of the auricle using a conventional band.

Problems to be Solved by the Invention However, in the above-described configuration, the housing cannot be completely inserted into the auricle unless the outer diameter of the housing that houses the unit is set to 14 mm to 17 mm. However, if the unit is small, the reproduction limit of bass is not lowered so much that the sound quality is dissatisfied.

In view of the above problems, the present invention has at least a portion to be inserted into the auricle that is similar to the conventional one, but enlarges a portion to be arranged outside the auricle, in which a large bass unit is housed, which is lower than the conventional one. (EN) Provided is a headphone configured so that it can be reproduced up to the sound range and is stably held in the auricle.

Means for Solving the Problems In order to solve the above problems, the headphones of the present invention have a front housing which has an external dimension such that at least the front surface can be inserted into the auricle, and an electric input is directed toward the front surface. Place a unit for treble that converts to acoustic output, behind it,
A bass unit for converting an electric input into an acoustic output is disposed in a rear housing having a larger diameter, and a step portion is provided between a lower portion of the front housing and a lower portion of the rear housing. It is a thing.

With the above-described structure, the present invention arranges a unit having an outer diameter equal to or smaller than the conventional one in the auricle for high-pitched sound, and a unit having a sufficiently large outer diameter for the low-pitched sound, placed outside the auricle. The bass can be reproduced to a low range, and the stepped portion provided between the lower portion of the front housing and the lower portion of the rear housing is caught around the lower portion of the auricle and can be stably retained in the auricle.

Embodiment Hereinafter, a headphone according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a side sectional view of headphones according to a first embodiment of the present invention, FIG. 2 is a side view of the same, and FIG. 3 is a circuit diagram. In the drawing, 1 is a front housing, 2 is a rear housing, 3 is a high-pitched sound unit, 3'is a diaphragm of a high-pitched sound unit, 4 is a low-pitched sound unit, 4'is a diaphragm of a low-pitched sound unit 4, and 5 is a diaphragm. High-pitched sound hole provided in the front housing 1, 6 indicates a high-pitched sound unit case, 7 indicates a low-pitched sound passage,
Reference numeral 8 denotes a low sound hole provided in the front housing 1, 9 denotes a rear sound hole provided in the rear housing 2, 10 denotes a sound absorbing material provided in the low sound passage 7, and 11 denotes a front housing 1 and a rear housing 2. At the step of, the former is shifted slightly below the latter.
12 is an input code, 13 is a bushing for protecting the input code, 14 and 15 are input terminals, and 16 is a capacitor.

With regard to the headphones configured as described above, the first
The operation will be described with reference to FIGS. 2, 3 and 4.

First, the front housing 1 of the headphones is inserted into the auricle. At this time, the step 11 is engaged with the protrusion of the lower part of the auricle, and is stably held. Since the rear housing 2 houses the bass unit 4 therein, the outer diameter is larger than that of the front housing 1, but the rear housing 2 is outside the auricle, so that there is no problem in mounting. The high-pitched sound unit 3 is deeply inserted into the auricle and faithfully transmits the high-pitched sound to the inner ear. On the other hand, the bass unit 4 is located behind the treble unit 3, but the wavelength of the sound is long and the outer diameter of the unit is large, so that the unit is efficient, and the treble unit 3 is sufficiently balanced in volume. The bass emitted from the bass unit 4 passes through the bass sound path 7 and is radiated from the bass sound hole 8 into the auricle. The treble unit case 6 hermetically seals the rear of the treble unit 3 and prevents the output sound pressure of the bass unit 4 from entering from the rear of the treble unit 3 and giving cross modulation to the diaphragm 3 '. Connection from the input cord 12 to the units 3 and 4 in the front and rear housings 1 and 2 is made by connecting a capacitor 16 as shown in FIG. Also,
The treble unit 3 has a characteristic of cutting the bass portion, or the sound absorbing material 10 is provided in the bass sound path 7 to absorb the treble portion, or the treble unit 4 is cut into the treble portion. By providing such characteristics, the capacitor can be omitted and the circuit as shown in FIGS. 3B and 3C can be operated.

As described above, according to the embodiment of the present invention, the treble unit is arranged toward the front surface of the housing having at least the front surface having an external dimension that can be inserted into the auricle, and at the rear of the treble unit.
By arranging the bass unit at a position outside the auricle, it is possible to reproduce deep bass, which was difficult with the conventional ear-insert type headphones.

In the above embodiment, the front housing 1 and the rear housing 2
I explained both with a cylindrical type, but these are how to fit in the ear,
From the viewpoint of design, the cross section may be oval or any other suitable shape.

Further, the treble unit 3 is sealed by the treble unit case 6, but it is not necessary to seal the treble unit case 6 if the effect of the braking material (not shown) of the treble unit 3 is high.

Further, although the bass sound path 7 is shown concentrically arranged with respect to the treble unit 3, the arrangement may not be concentric, and the bass sound path 7 may be offset to one side. is there.

It should be noted that, although it has been described for one ear in the figure, it is of course possible to configure for both ears and stereo. If necessary, the bass unit may be placed upside down so that the sound emitted from the rear surface of the unit can be heard. Further, the periphery of the front housing 1 may be wrapped with rubber, soft plastic or the like in a ring shape, or may be covered with a pad or the like made of a permeable foam material.

Effects of the Invention As described above, according to the present invention, the high-pitched sound unit is arranged toward the front surface of the housing, and the low-pitched sound unit is arranged behind it, at least the front surface of which has an external dimension that can be inserted into the auricle. By putting the bass unit out of the ear canal, it can be made larger than the conventional unit, and it is possible to obtain the effect that it is possible to reproduce the deep bass that was difficult with the conventional ear-insert type headphones. By hooking the stepped portion provided between the lower part of the front housing and the lower part of the rear housing to the lower part of the auricle, it is possible to realize excellent headphones that can be stably held in the auricle, and is an extremely effective device. Is.

[Brief description of drawings]

FIG. 1 is a side sectional view of headphones according to an embodiment of the present invention, FIG. 2 is a side view of the same, and FIG. 3 is a circuit diagram. 1 ... front housing, 2 ... rear housing, 3 ...
High-pitched sound unit, 4 ... Low-pitched sound unit, 5 ... High-pitched sound hole, 7 ... Low-pitched sound passage, 8 ... Low-pitched sound hole, 11 ... Step.

Claims (1)

[Scope of utility model registration request] 1. A treble unit for converting an electric input to an acoustic output toward a front surface is disposed in a front housing having at least a front surface having an external dimension such that the front housing can be inserted into the auricle, and behind the treble unit. A bass unit that converts electrical input to acoustic output is placed in the larger diameter rear housing,
Headphones provided with a step portion between the lower portion of the front housing and the lower portion of the rear housing.