JPH0332199A - Headphone - Google Patents

Abstract

PURPOSE:To attain further sound quality improvement by adopting a structure such that an ear mount part and a speaker accommodate part are provided separately and a sound guide pipe is linked externally from the ear mount. CONSTITUTION:An ear mount part 3 and a speaker accommodate part 2 are provided separately and a sound guide pipe 6 having an inertance component is linked externally and plural small holes are formed to the opening 7 formed to the ear mount part A. Thus, the speaker accommodate part 2 made of various types of materials having various volumes is combined to the ear mount part 3. Thus, a problem of unsharpened sound quality due to rise of f0 in a closed type headphone is avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates primarily to headphones suitable for so-called high-fidelity playback such as listening to music, and more specifically to headphones that are particularly excellent in bass range reproduction ability. It is.

(Prior art) Headphones have traditionally been used when listening to music alone late at night, or when monitoring the sound conditions such as when recording, but especially with modern mobile phones. As tape recorders become more widespread, a wide variety of headphones are also available.

These headphones can be roughly divided structurally: ■Inner-ear headphones that are used by inserting the main unit that houses the speaker into the auricle;■The inner-ear headphones are attached to the headband and the main unit is laid down. Vertical headphone with a structure that allows it to be inserted into the auricle ■ Oven-type headphone with a cushioning material attached to the main body that houses the speaker, and the main body is in contact with the ear shell through the cushioning material Headphones ■ A donut-shaped cushioning material is attached to the main body that houses the speaker, and the cushioning material covers the left and right ears. There was a problem with so-called high-fidelity playback, such as when listening to music, especially with regard to the ability to reproduce low frequencies.

(Problem to be Solved by the Invention) In other words, the inner-ear type headphone (■) and the vertical type headphone (■) inevitably require small-diameter speakers because the main body is inserted into the auricle. There is a limit to low frequency reproduction due to the inability to lower the FO, or the inability to obtain high output without distortion due to the inability to obtain a vibration stroke. .

In addition, regarding the oven-type headphones (■), the main body is in contact with the ear shell through a cushioning material, so the output sound pressure level decreases from the midrange to the bass range, It is unsuitable for reproducing the range, and
The problem with the closed type headphones (2) is that they are large and heavy, making them unsuitable for long-term use.

(Means for Solving the Problems) The present invention solves the drawbacks of conventional headphones as described above, and provides headphones that are excellent in so-called high-fidelity reproduction for music listening, especially in bass range reproduction. It was done for that purpose.

Another object of the present invention is to provide headphones that are suitable for so-called high-fidelity playback such as listening to music, and that can be manufactured and provided at low cost.

(Means for Solving the Problems) In order to achieve the above object, the configuration adopted by the present invention is such that when worn on the auricle, at least a position facing the external auditory canal,
A sound conduit having an auricle attachment part having an appropriately shaped opening and a speaker housing part having an appropriate shape, the auricle attachment part and the speaker housing part being independent structures, and having an inertance component. This configuration is characterized in that the auricle attachment part is provided with a hole in communication with the outside, and that the opening in the pinna attachment part is formed by a plurality of small holes.

Another configuration adopted by the present invention is that a bass speaker is housed in the speaker housing, a high-frequency speaker is housed in the pinna attachment part, and the end of the sound conduit communicates with the speaker housing and has an inertance component. By locating the part near the opening of the pinna attachment part, the acoustic output of the bass speaker can be acoustically connected to the ear canal. It is characterized by being housed with the sound axis of the speaker perpendicular or substantially perpendicular to it.

In the present invention, the auricle mounting section may be rotatable relative to the speaker mounting section, or the auricle mounting section may be formed of a soft material.

(Function of the Invention) In the headphone of the present invention having the above configuration, since the auricle attachment portion and the speaker storage portion have an independent structure, the speaker storage portion has various volumes relative to the auricle attachment portion. In addition, since the sound conduit containing the inertance component is connected to the outside from the pinna attachment part, the muffled sound quality due to the increase in fo, which was a problem with conventional products, especially closed-type headphones, can be avoided. In addition, if the opening in the pinna attachment part is formed of a plurality of small holes, the small holes will act as antiresonance prevention resistance generated in the acoustic circuit in front of the diaphragm. This makes it possible to further improve the sound quality.

On the other hand, in the present invention, a bass speaker is stored in the speaker storage part, a treble speaker is stored in the auricle mounting part, and the end of the sound conduit that communicates with the speaker storage part and has an inertance component is mounted in the auricle mounting part. The acoustic output of the bass speaker may be acoustically connected to the ear canal by placing the bass speaker near the opening of the ear canal.
By adopting these configurations, specialized speakers will be able to handle the treble and bass frequencies, making it possible to obtain more ideal frequency characteristics. When stored with the sound axis perpendicular or almost perpendicular to the sound axis, unlike conventional products in which they are placed on the same axis, it is possible to effectively prevent sound leakage from the bass speakers and prevent sound leakage from the treble speakers. By effectively generating , the performance of both speakers can be fully demonstrated.

In the present invention, the auricle mounting part may be made rotatable relative to the speaker mounting part, or the auricle mounting part may be formed of a soft material, but if these configurations are adopted,
The wearer feels more comfortable and can provide the user with better reproduced sound.

(Example) The present invention will be explained in detail below using examples.

FIG. 1 shows an example of the implementation of the present invention, in which 1 is a headband, 2 is a speaker housing part, 3 is an auricle attachment part, and 4 is a support for the speaker housing part 2 and the auricle attachment part 3. 5 is a lead wire, the support 4 is slidably fitted to the headband 1, and the speaker storage section 2 and the auricular attachment section 3 are pivotably pivoted relative to the support 4. It is worn. Further, the lead wire 5 is connected to a speaker (not shown in FIG. 1), and the above structure is the same as that of a conventionally known headphone.

In the present invention, the following configuration is further added to the above configuration.

That is, as shown in FIG. 1, in the present invention, the speaker storage section 2 and the auricular attachment section 3 have an independent structure, and the speaker having various volumes with respect to the auricular attachment section 3 can be used. The storage section 2 or the speaker storage section 2 made of various materials can be combined.

To explain in more detail, in conventional headphones, especially inner-ear headphones and vertical headphones, speakers are attached directly to the pinna of the ear, and in order to prioritize sound quality, it is necessary to increase the diameter of the speakers. On the other hand, it was difficult to achieve a balance between wearing comfort and sound quality, as increasing the size of the speaker worsened the wearing comfort.However, with the above configuration, it is possible to achieve a balance between wearing comfort and sound quality. It is easy to balance the
Furthermore, the larger diameter not only has the advantage of improving workability during assembly, but also dramatically improves the output level from low to high frequencies, with a level improvement of 30 to 10 db at 20 to IKHz. ), this fact means that the load on the speakers is reduced when listening to the same sound ■, making it possible to playback with low distortion, making it possible to provide headphones suitable for so-called high-fidelity playback. It is something.

Further, reference numeral 6 denotes a sound pipe having an inertance component, which is provided in communication with the outside from the auricle attachment part. In this embodiment, the sound pipe 6 is made of an L-shaped thin pipe, and has the above-mentioned configuration. By adding this sound pipe 6 to the acoustic equivalent circuit, a new acoustic system is inserted in parallel to the ear capacity, and the diaphragm (mechanical system) and the ear capacity II (
This prevents the acoustic system from being connected in series and reduces fo.

There are no particular restrictions on the position, direction, etc. of the sound guide tube 6, as long as it is inserted in parallel to the capacity of the ear in the acoustic equivalent circuit.

Reference numeral 7 denotes a small hole as an opening provided near the tip of the pinna attachment part, and as shown in FIG. Therefore, when the headphone of the present invention is worn, the opening is present at least at a position facing the external auditory canal, and the above constitutes an example of the headphone of the present invention.

(Effects of the Invention) In the headphone of the present invention as described above, since the auricle attachment portion and the speaker storage portion have an independent structure, the speaker storage portions having various volumes with respect to the auricle attachment portion or The speaker storage section 2 made of various materials can be combined, and a sound conduit having an inertance component can be connected to the outside from the auricle attachment section.
Since the opening in the pinna attachment part is formed by multiple small holes, as is clear from the frequency characteristics in Figure 3, the sound quality is improved due to the increase in F.O., which has been a problem with conventional products, especially closed-type headphones. It is possible to solve the problem of sleeplessness.

(Other Embodiments) In the above embodiments, the speaker storage section 2 and the auricular attachment section 3 were fixed to each other, but the present invention is not limited to this structure, and as shown in FIGS. 4 and 5. As shown in FIG. 3, the groove 31 provided around the base of the auricle attachment part 3 and the opening 21 provided in the speaker housing part 2 are fitted together, and the auricle attachment part 3 is rotated relative to the speaker housing part 2. Furthermore, the auricle attachment part 3 may be made of a soft material, but if these configurations are adopted, the wearing feeling will be enhanced and better reproduced sound will be provided to the user. be able to.

Alternatively, as shown in FIG. 6, dedicated speakers may be provided for the bass range and the treble range, respectively.

That is, in FIG. 6, 11 is a speaker 12 dedicated to the bass range, which is disposed inside the speaker housing 2. The speaker 12 is disposed on the tip side of the auricle attachment part 3, which is separate from the speaker housing 2. The speaker 13 dedicated to the high frequency range is integrated with the distal end side of the auricle attachment part 3', with one end communicating with the space in front of the bass speaker and the other end facing near the opening of the auricle attachment part. In the headphones of this embodiment, the low-frequency sound generated by the speaker 11 is provided to the ear canal without leaking through the sound conduit 13, and the high-frequency sound speaker 12 is a sound conduit having an inertance component.
The generated sound is provided to the external auditory canal through a small hole 7' which is provided near the tip of the pinna attachment part 3' and serves as an opening.

Therefore, since each speaker can easily reproduce sounds within a relatively narrow range, the speaker of this embodiment exhibits more ideal frequency characteristics as shown in FIG. 7.

As for the arrangement of the bass speaker 11 and the treble speaker 12, as shown in FIG. The sound is guided directly to the external auditory canal through the sound conduit 13, and the sound from the high-frequency speaker 12 is also transmitted to the external auditory canal through the opening 7' located near the external auditory canal, thus effectively preventing sound leakage from the low-frequency speaker. , and the reproduced sound is supplied to the ears while effectively causing sound leakage from the treble speaker.

Also, in the above embodiment, as in the previous embodiment, the auricle attachment part 3° can be rotated with respect to the speaker housing part 2°, and the auricle attachment part 3° is made of a soft material. Of course, it is also possible to do so.

The present invention is as described above, and is particularly excellent as a headphone.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an example of the implementation of the present invention, FIG. 2 is a diagram showing how the headphone shown in FIG. 1 is used, FIG. 3 is a graph of frequency characteristics, and FIG. FIG. 5 is a front view showing another embodiment, FIG. 6 is a partially sectional view showing still another embodiment of the present invention, and FIG. 7 is a graph showing the frequency characteristics thereof. be. ■・・・Headband 2.2゛...Speaker storage part 3.3'...Auricular attachment part 4...Support part 6.13...Sound conduit 7... ...Small hole 8...Speaker 11...Bass speaker 12...Treble speaker Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 RAG -

Claims (1)

[Scope of Claims] 1. An auricle mounting portion having an appropriately shaped opening formed at least at a position facing the external auditory canal when attached to the auricle, and an appropriately shaped speaker housing portion; 1. A headphone characterized in that an intervening mounting part and a speaker housing part have an independent structure, and a sound conduit having an inertance component is provided in communication with the outside. 2. The headphone according to claim 1, wherein the opening formed in the pinna attachment part is formed by a plurality of small holes. 3. The headphone according to claim 1 or 2, wherein the auricle mounting portion is rotatable relative to the speaker mounting portion. 4. The headphone according to claim 1 or 2, wherein the auricle attachment portion is made of a soft material. 5. Storing a bass speaker in the speaker housing and storing a treble speaker in the pinna attachment part, and placing the end of the sound conduit that communicates with the speaker housing and has an inertance component near the opening of the pinna attachment part. A headphone characterized in that the acoustic output of a bass speaker can be acoustically connected to an ear canal by placing the speaker in front of the ear canal. 6. The headphone according to claim 5, wherein the bass speaker and the treble speaker are housed with their sound axes orthogonal or substantially orthogonal. 7. The headphone according to claim 5 or 6, wherein the auricle mounting portion is rotatable relative to the speaker mounting portion. 8. The headphone according to claim 5 or 6, wherein the auricle attachment portion is made of a soft material.