JP3148462U - Headphone - Google Patents

Abstract

An improved earphone structure having different voice qualities and capable of adjusting sound resonating with frequency is provided. An earphone mainly composed of an earphone case, a speaker, and an adjustment device. A sound adjustment hole 114 and an installation hole 115 are provided in the earphone case, and the speaker 120 is installed in the earphone case 110, and a resonance space is formed between the earphone case 110 and the earphone case 110. The adjusting device 130 includes a rod 133 and a shielding sheet 132, the shielding sheet is installed in the earphone case, one end of the rod extends to the shielding sheet, and the other end extends out of the earphone case through the installation hole, By fixing with the adjustment button 131, when the adjustment button is turned, the blocking sheet 132 can sequentially block the sound adjustment holes. The earphone can have different voice qualities by adjusting the opening or closing of the voice adjustment hole in the earphone case via the adjustment structure. [Selection] Figure 3

Description

  The present invention relates to a sound adjustment technique, and more particularly to a sound adjustment technique that resonates with the frequency of a headphone.

  Electronic products such as today's radio, MP3, mobile phones and PDAs all have audio broadcasting functions. Since the electronic product can be heard by audio through a headphone, it does not bother others even at a specific place.

As shown in FIGS. 1 and 2, the conventional earphone 100 ′ is mainly composed of an earphone case 110 ′, a speaker 120 ′, and a lid 130 ′. The speaker 120` is installed inside the earphone case 110`, and a sound is emitted to the outside through the hole 131` of the lid 130`. A resonance space S10` is formed between the speaker 120` and the earphone case 110`, and the quality of the sound emitted by the earphone 100` can be adjusted in the resonance space S10`. As proved by the test, whether or not the resonance space S10` communicates with the external space also affects the voice quality of the earphone 100`. The earphone 100` can be divided into a closed type and an open type based on whether or not the resonance space S10` communicates with the external space. The earphone 100` shown in FIGS. 1 and 2 is an open-type earphone, and a plurality of sound adjustment holes 111` are installed in the earphone case 110`.

Prior art earphones are already fixed in the design and manufacturing process, either closed or open, and cannot be changed in the process of use. Consumers needed to improve with one set of earphones because they could not change the voice quality without changing the original structure and could not enjoy different characteristic sounds with the same earphone.
Japanese Utility Model Publication No. 5-18193

  In order to solve the drawbacks of the prior art, it is a main object of the present invention to provide an improved structure of an earphone that has different voice qualities and can adjust sound that resonates with frequency.

In order to solve the above problems, the present invention includes an earphone case, a speaker, and an adjusting device. A sound adjustment hole and an installation hole are provided in the earphone case, the speaker is installed in the earphone case, and a resonance space is formed between the earphone case and the earphone case. The adjusting device has a rod and a shielding sheet, the shielding sheet is installed in the earphone case, one end of the rod is fixed to the shielding sheet, and the other end extends out of the earphone case through the installation hole, and the adjustment button When the adjustment button is turned, the blocking sheet can sequentially block the equal sound adjustment holes.
The present invention has the following features.
(1) Including earphone case, speaker, adjustment device,
The earphone case is provided with a sound adjustment hole and an installation hole.
A speaker is installed in the earphone case, and a resonance space is formed between it and the earphone case.
The adjusting device has a bar and a blocking sheet that can block the isophonic adjustment holes in order, the blocking sheet is installed in the earphone case, one end of the bar is fixed to the blocking sheet, and the other end is connected to the earphone case through the installation hole. An earphone structure characterized by being extended and installed outside.
(2) The structure of the earphone as set forth in (1), wherein the adjustment device has an adjustment button, and the adjustment button is fixed to one end of the rod extending outside the earphone case.
(3) The earphone case has a plurality of sound adjustment holes, the adjustment buttons have a plurality of ranks, and when the adjustment buttons are adjusted to different ranks, the blocking sheet sequentially blocks the sound adjustment holes of the earphone case. The structure of the earphone as set forth in (2).
(4) The structure of the earphone according to (2), wherein the adjustment button is capable of controlling the rank or is rotationally displaced with an adjustable structure without a rank.

  In the present invention, by adjusting the opening or closing of the sound adjustment hole in the earphone case by installing the adjustment structure, the earphone of the present invention can have different sound quality.

  In order to clearly show the structure of the earphone according to the present invention, a detailed description will be given with reference to the drawings.

  3 includes the earphone 100, the speaker 120, and the adjusting device 130 of the present invention.

  The earphone case 110 is a hollow insulating case, and includes a front end wall 111, a rear end wall 112 installed opposite to the front end wall 111, and a side wall 113 connecting the front end wall 111 and the rear end wall 112. A speaker 120 is installed at the front end inside the earphone case 110, and the sound emitted from the speaker 120 is transmitted to the outside through the front end wall 111 of the earphone case 110. A resonance space S10 is formed in the rear part of the speaker 120 and the earphone case 110. The resonance space S10 changes the sound emitted from the speaker 120 and adjusts the sound emitted from the earphone 100.

  By opening a plurality of sound adjustment holes 114 in the earphone case 110, the resonance space S10 and the earphone 100 communicate with the external space. According to the verification result, the equal sound adjustment holes 114 have different sound quality due to different designs such as quantity, shape, and size. Therefore, in actual application, the number and shape of the sound adjustment holes 114 are designed based on different needs. In this embodiment, there are four opened sound adjustment holes 114, and the equal sound adjustment holes 114 are aligned in a row so that the opening or closing of the sound adjustment holes 114 can be adjusted in a row. Install at 112. An installation hole 115 is opened below the sound adjustment hole 114 of the earphone case 110, and the adjustment device 130 is installed.

  The adjusting device 130 includes an adjusting button 131, a shielding sheet 132, and a bar 133. The adjusting button 131 is installed outside the rear side wall 112 of the earphone case 110, the shielding sheet 132 is installed inside the rear side wall 112 of the earphone case 110, the rod 133 is installed through the installation hole 115, and both ends are respectively The adjustment button 131 and the shielding sheet 132 are fixed. When the adjustment button 131 of the adjustment device 130 is turned, the shielding sheet 132 also rotates simultaneously via the bar 133, and the shielding sheet 132 blocks the sound adjustment hole 114.

  4, 5, and 6 are rear views of the earphone 100 of the present invention. Corresponding to the four sound adjustment holes 114 opened in the earphone case 110, ranks “1”, “2”, “3”, and “4” are installed on the adjustment buttons 131 of the adjustment device 130. When the adjustment button 131 is turned to a position other than the above-mentioned rank, the earphone 100 of the present invention becomes an open-type earphone, and when the adjustment button 131 is turned to “1”, the shielding sheet 132 blocks one hole of the sound adjustment hole 114. . When the adjustment button 131 is turned to the ranks “2”, “3”, and “4”, the blocking sheet 132 blocks two, three, or all four of the sound adjustment holes 114, respectively. When all the sound adjustment holes 114 are blocked, the earphone 100 becomes a closed type earphone.

FIG. 7 shows a change in the frequency curve of the sound emitted by the earphone 100 of the present invention when the blocking sheets 132 block different numbers of the sound adjustment holes 114. The figure shows the frequency range (20 Hz to 20 KHz) of hearing of the human ear, and shows the reflection on the sound when the sound adjustment hole 114 of the earphone 100 of the present invention is in a different shielding state. As shown in the figure, curve I is a frequency curve when all the sound adjustment holes 114 are not cut off, and curves II, III, and IV are one cut-off sheet 132, two, and all four sound adjustment holes 114, respectively. It represents the curve when. As can be seen from the curve diagram, the earphone of the present invention can be clearly distinguished from the short wave and the long wave of the frequency curve by adjusting the adjusting device 130, the sound quality is improved, and the sound of different characteristics is produced. Can meet various needs.

  The above embodiments illustrate the principle of the present invention. The adjustment button 131 blocks the sound adjustment hole 114 using the blocking sheet 132 by adjusting the displacement by using a controllable rank or a structure without rank. When actually designing and manufacturing, the number of the sound adjustment holes 114 of the earphone is increased or decreased depending on the actual situation, and the number of ranks of the adjustment buttons 131 is also changed by increasing or decreasing the number of holes. The specific form of the blocking sheet 132 may be another shape structure such as a plate or a rod. If necessary, the number of blocking sheets can be increased to control the opening and closing of many holes.

It is sectional drawing of the open type earphone of a prior art. FIG. 2 is a rear view of FIG. It is side surface sectional drawing of the earphone of this invention. FIG. 4 is a schematic diagram of adjustment of the earphone shown in FIG. FIG. 4 is a schematic diagram of adjustment of the earphone shown in FIG. FIG. 4 is a schematic diagram of adjustment of the earphone shown in FIG. It is a use effect test table | surface of this invention.

Explanation of symbols

100` earphone
110` earphone case
111` Audio adjustment hole
120` Speaker
130` lid
131` hole
S10 Resonance space
100 earphones
110 Earphone case
S10 Resonance space
111 Front end wall
112 Rear end wall
113 Side wall
114 Audio adjustment hole
115 Installation hole
120 speakers
130 Adjustment device
131 Adjustment button
132 Shielding sheet
133 bars

Claims (4)

Including earphone case, speaker, adjustment device,
The earphone case is provided with a sound adjustment hole and an installation hole.
A speaker is installed in the earphone case, and a resonance space is formed between it and the earphone case.
The adjusting device has a bar and a blocking sheet that can block the isophonic adjustment holes in order, the blocking sheet is installed in the earphone case, one end of the bar is fixed to the blocking sheet, and the other end is connected to the earphone case through the installation hole. An earphone structure characterized by being extended and installed outside.   2. The earphone structure according to claim 1, wherein the adjustment device includes an adjustment button, and the adjustment button is fixed to one end of the rod that extends outward from the earphone case.   The earphone case has a plurality of sound adjustment holes, the adjustment buttons also have a plurality of ranks, and when the adjustment buttons are adjusted to different ranks, the blocking sheet sequentially blocks the sound adjustment holes of the earphone case. 3. The structure of the earphone according to claim 2. 3. The structure of the earphone according to claim 2, wherein the adjustment button is rotationally displaced with an adjustable structure that can control the rank or has no rank.

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