JP5671586B1 - Tuning headphones - Google Patents

Abstract

To provide a tunable headphone. A tuning headphone is provided on a user's ear and includes a ventilation lid, a tuning lid, and a speaker unit. The ventilation lid has an annular portion and a ventilation plane. The ventilation plane is provided at one end of the annular portion away from the user's ear. The ventilation plane is provided with at least one ventilation hole. The inner surface of the annular portion is a curved surface. The tuning lid is provided with at least one tuning hole. The tuning lid is pivotally placed on one end of the vent lid away from the user's ear. Thereby, the communication cross-sectional area of the tuning hole and the ventilation hole is adjusted. The speaker unit is provided at one end of the annular portion near the user's ear. [Selection] Figure 1

Description

  The present invention relates to a tunable headphone.

  Currently, it is common to listen to music while wearing headphones so as not to bother others when listening to music. Moreover, since headphones are articles that are frequently carried, portable headphones are required to be small in volume and lightweight.

  Many conventional headphone housings are sealed spaces, and when sound is output, they are limited to a predetermined size of the sealed space inside the housing and affect the sound output attributes. In addition, if the volume of the headphones is small, the resonance space becomes small, so that a preferable bass effect cannot be provided. Also, the timing of using the headphones varies, for example, listening to music, chatting, playing a game, and the like. However, if the timing is different, the sound provided is different, and the parameter requirements for the headphones are different. However, in the conventional headphones, the user has to change the headphone parameters himself.

  Therefore, in view of the above-described problems that can be improved, the present invention is considered as a method that is rational in design and effective in improving the above-described problems as a result of conducting earnest research and operating together with science. It came to submit.

  An object of the present invention is to provide a tunable headphone.

In order to solve the above-described problems, the present invention provides a tuning headphone provided in a user's ear.
A tuning headphone according to the present invention is disposed in a user's ear and includes a ventilation lid, a tuning lid, and a speaker unit. The ventilation lid has an annular portion and a ventilation plane. The ventilation plane is provided at one end of the annular portion away from the user's ear. The ventilation plane is provided with at least one ventilation hole. The inner surface of the annular portion is a curved surface. The inner side surface of the annular part is curved toward the center of the annular part. The tuning lid is provided with at least one tuning hole. The tuning lid is pivotally placed on one end of the vent lid away from the user's ear. Thereby, the communication cross-sectional area of the tuning hole and the ventilation hole is adjusted. The speaker unit is provided at one end of the annular portion near the user's ear.

  According to the present invention, since the tuning lid is rotatably provided on the ventilation lid, it is possible to select the sound expression of the tuning headphones according to the situation when the tuning headphones are used.

It is the figure which showed the cross section of the tuning headphones which concern on this invention. It is a three-dimensional exploded view of the tuning headphones according to the present invention. It is the three-dimensional exploded view seen from the other viewpoint of the tuning headphones according to the present invention. It is the figure which showed operation | movement of the tuning headphones which concern on this invention. It is the figure which showed operation | movement of the tuning headphones which concern on this invention. It is the figure which showed operation | movement of the tuning headphones which concern on this invention. It is the figure which showed the external appearance of the tuning headphones which concern on this invention. It is an impedance curve diagram of the tuning headphones according to the present invention. It is an impedance curve figure of other embodiment of the tuning headphones which concern on this invention.

  Hereinafter, the present invention will be described in detail with reference to the drawings so that the techniques, methods, and effects adopted in order to achieve a predetermined object can be further understood. As a result, the objects, features and characteristics of the present invention can be deeply and specifically understood. However, the drawings are only used for reference and explanation, and do not limit the present invention.

  As shown in FIG. 1, a tuning headphone 1 according to an embodiment of the present invention is attached to a user's ear 9 and includes a ventilation lid 10, a tuning lid 20, a speaker unit 30, and an elastic member 50. The speaker unit 30 is provided at one end of the ventilation lid 10 near the user's ear 9. The tuning lid 20 is rotatably provided at one end of the ventilation lid 10 away from the user's ear. The elastic member 50 is provided at one end of the speaker unit 30 near the user's ear 9. When the tuning headphones 1 are attached to the user's ear 9, a front chamber 51 is formed between the elastic member 50, the speaker unit 30, and the user's ear 9.

  The speaker unit 30 can select different driving methods such as a dynamic type, an electrostatic type, and a balanced armature type based on factors such as cost, frequency, sensitivity demand, sound quality, and service life. The elastic member 50 is a high-density sponge ear pad, a silicon ear plug, or a sponge ear plug. During use, one end of the elastic member 50 is applied to the user's ear, so that the sealing performance and comfort of the tuning headphone 1 in the user's ear can be improved. In the selection of the elastic member 50, the elastic member 50 is selected depending on its position. For example, when the elastic member 50 is placed in the user's ear canal, the tuning headphones 1 are, for example, inner-ear headphones, and the earplug type is selected as the elastic member 50. When abutting on the user's ear like the elastic member 50 in the present embodiment, the tuning headphone 1 is an ear covering type headphone (shown in FIG. 7), and an ear pad type is selected as the elastic member 50.

  As shown in FIGS. 1, 2, and 3, the ventilation lid 10 includes an annular portion 11, a ventilation plane 12, and a position limiting wall 13. The ventilation plane 12 is provided with at least one ventilation hole 121. In the present embodiment, the number of vent holes 121 is six, but the number of vent holes 121 is not limited to this. The ventilation plane 12 is provided at one end of the annular part 11 away from the user's ear 9, whereby one end of the annular part 11 away from the user's ear 9 is substantially closed. An inner surface of the annular portion 11 is a curved surface 111. The curved surface 111 is curved toward the center of the annular portion 11. With such a structural arrangement, it is possible to cause the airflow to smoothly flow on the curved surface 111, and the gas is compressed by the curved surface 111, thereby changing the sound frequency. The position limiting wall 13 is formed to extend in a direction away from the user's ear 9 on the ventilation plane 12. The position limiting wall 13 and the ventilation plane 12 jointly form an accommodation space 131 in which the opening is directed away from the user's ear 9. The annular portion 11, the ventilation plane 12, and the position limiting wall 13 are integrally formed.

  The tuning lid 20 includes an annular portion 21 and a tuning plane 22. The tuning plane 22 is provided with at least one tuning hole 221. The cross-sectional area and quantity of the tuning hole 221 are the same as those of the vent hole 121. The tuning plane 22 is provided at one end of the annular portion 21 of the tuning lid 20 near the user's ear 9. At one end of the annular portion 21 away from the user's ear 9, a grip portion 211 is formed extending in the outer diameter direction. The annular portion 21, the tuning plane 22 and the gripping portion 211 of the tuning lid 20 are integrally formed.

Hereinafter, a combination of the ventilation lid 10, the tuning lid 20, and the speaker unit 30 will be described in detail. The speaker unit 30 is provided at one end of the annular portion 11 of the vent lid 10 near the user's ear 9, whereby the vent lid 10 and the speaker unit 30 jointly form the rear chamber 14. The tuning plane 22 of the tuning lid 20 and the ventilation plane 12 of the ventilation lid 10 abut in parallel, and the outer diameter of the annular portion 21 of the tuning lid 20 is substantially equal to the inner diameter of the position limiting wall 13 of the ventilation lid 10. The annular part 21 and the tuning plane 22 are placed exactly in the receiving space 131. The grip part 211 is brought into contact with one end of the position limiting wall 13 away from the user's ear 9, and the user can directly or indirectly rotate the tuning lid 20 via the grip part 211. The outer diameter of the grip portion 211 is larger than the outer diameter of the position limiting wall 13. In other words, the user can directly grip and rotate the grip portion 211 of the tuning lid 20 with a finger, and use the arrangement of the decoration lid (not shown) and the gear (not shown) to hold the grip portion. 211 can also be rotated.
The passive damper diaphragm 40 is arranged in another embodiment, and the description thereof is omitted in this embodiment.

  When the speaker unit 30 generates vibrations to produce sound, the air pressure in the front chamber 51 and the rear chamber 14 changes. The front chamber 51 is formed jointly by the elastic member 50 and the user's ear 9, but the shape and size of the user's ear 9 are different for different users. Therefore, the size of the front chamber 51 cannot be controlled. Also, in the acoustic chamber, the front chamber 51 provides high frequency resonance, and if there is an air leak or an opening in the front chamber, the low frequency is weakened. On the other hand, since the rear chamber 14 is defined by the vent lid 10, the volume of the rear chamber 14 is substantially fixed. The rear chamber 14 also provides low frequency resonance. However, since the rear chamber 14 that is completely sealed has a large damper with respect to the speaker unit 30, the damper for the speaker unit 30 in the rear chamber 14 is connected by communicating the air inside the rear chamber 14 with the outside using the vent holes 121. Make it smaller.

  As shown in FIGS. 4, 5 and 6, the tuning lid 20 can be rotated with respect to the vent lid 10, whereby the user adjusts the communication cross-sectional area between the vent hole 121 and the tuning hole 221. be able to. In the arrangement shown in FIG. 4, all the vent holes 121 are closed by the tuning plane 22. That is, the tuning hole 221 and the vent hole 121 do not communicate at all. The effect will be described later. In the arrangement shown in FIG. 5, the vent hole 121 is partially closed by the tuning plane 22. That is, the tuning hole 221 and the vent hole 121 are partially communicated. In the arrangement shown in FIG. 6, the tuning hole 221 and the vent hole 121 are in complete communication.

It is possible to adjust the Rendoridan area between vent 121 and tuning holes 221 by using a tuning lid 20, the user can adjust the size and the lowest resonance frequency f _o of the damper with respect to the speaker unit 30 of the rear chamber 14 Thus, the impedance curve of the tuning headphones 1 can be changed.

Hereinafter, first, the lowest resonance frequency f _o and quality factor Q value of headphones (resonance point) will be described. f _o represents a frequency corresponding to the first maximum value of the speaker impedance curve. When the audio frequency is near the f _o value, the vibration is strong. Thus, expression Effect of the sound frequency is near f _o value preferred. The meaning indicated by the Q value is the vibration suppression capability of the speaker unit 30. In other words, the Q value can reflect the damper state of the speaker unit 30. If the Q value is too low, the output sound pressure of the speaker unit 30 rapidly decreases before reaching it, the speaker unit 30 enters a damper state, and the low frequency attenuation becomes excessive. If the Q value is too high, the speaker unit 30 is in a state of insufficient damper, and the low frequency becomes excessively strong. In the sense of hearing, if the Q value is low, the bass produced is short and does not stretch. In other words, the voice does not continue. When the Q value is high, the bass that is emitted sinks deeply, but the sound becomes dense. Therefore, the f _o and Q values must be adjusted according to user preferences and the type of audio playback. The user adjusts the tuning headphone 1 based on the difference in the requirements for the f _o and Q values of the application timing of the tuning headphone 1 (for example, chat, game play and music listening), so that the best sound effect is obtained. Can be achieved. The characteristics of the various modes will be described later.

FIG. 8 is an impedance curve experiment diagram of the tuning headphones 1 under different conditions. S1 is an impedance curve when the speaker unit 30 is under free space. S2 to S7 are impedance curves when the speaker unit 30 is in the ventilation lid 10. S2 is a state in which the tuning hole 221 and the vent hole 121 are not in communication with each other. S3 is a state in which the number of communication holes between the tuning hole 221 and the vent hole 121 is one. S4 is a state in which the number of communication holes between the tuning hole 221 and the vent hole 121 is two. S5 is a state in which the number of communication holes between the tuning hole 221 and the vent hole 121 is three. S6 is a state in which the number of communication holes between the tuning hole 221 and the vent hole 121 is four. S7 is a state in which the number of communication holes between the tuning hole 221 and the vent hole 121 is five. Moreover, the formula of Q value is as follows.

f _o is the lowest resonance frequency. R _E is the minimum impedance value when the frequency is higher than the minimum resonance frequency (f _o ). Z _O is an impedance value at the lowest resonance frequency (f _o ). f ₂ −f ₁ is obtained by subtracting two frequencies when the impedance value is R ₁ , that is, a bandwidth. When an example curve S ₃ in FIG. 8, the frequency corresponding to the peak A is f _o (labeled f _os3 in the drawing), the impedance value corresponding to the peak A is Z _O (labeled Z _OS3 in the drawing) Yes, the impedance value corresponding to the lowest B of the curve is R _E (represented as R _{ES3 in the} figure). Therefore, the numerical value of R ₁ can be obtained, and thereby the numerical value of f ₂ −f ₁ (bandwidth) can be obtained.

As can be seen from the equation of FIG. 8 and the quality factor Q, when the speaker unit 30 is attached to the ventilation lid 10 and the tuning lid 20, both the f _o and Q values change, and the tuning hole 221 and the ventilation hole 121 are changed. If the number of communicating holes with is different, the f _o and Q values also change. Roughly speaking, as the f _o value decreases, so does the Q value.

As described above, when the communication states of the vent hole 121 and the tuning hole 221 are different, the Q value and the f _o value change. Therefore, by installing the ventilation lid 10 and the tuning lid 20 of the tuning headphone 1 according to the present invention, the user can achieve the most preferable sound effect by selecting the required Q value and f _o value.

  In other embodiments, the tuning headphones 1 further include a passive diaphragm 40. The passive diaphragm 40 is made of an elastic material. The passive diaphragm 40 closes one end of the tuning lid 20 away from the user's ear 9. In addition, the passive diaphragm 40 is provided with a central protrusion 41 and a ring-shaped protrusion 42. The ring-shaped protrusion 42 is provided so as to surround the center protrusion 41. Both the ring-shaped protrusion 42 and the center protrusion 41 protrude in a direction away from the user's ear 9. A weight placement board 43 is further provided on the passive diaphragm 40. By utilizing the installation of the ring-shaped protrusion 42 and the center protrusion 41, the passive diaphragm 40 has more elasticity, and the weight placement board 43 can change the overall weight of the passive diaphragm 40.

  The tuning chamber 23 is formed by the tuning lid 20 and the passive diaphragm 40 by closing one end of the tuning lid 20 away from the user's ear 9 using the passive diaphragm 40. Since the passive diaphragm 40 is made of an elastic material, the volume of the tuning chamber 23 can be slightly changed. When the vent hole 121 and the tuning hole 221 communicate with each other, the rear chamber 14 and the tuning chamber 23 communicate with each other, and the volume of the tuning chamber 23 can be changed. The damper for 30 can be made small. Therefore, the passive diaphragm 40 can not only change the damper for the speaker unit 30 in the rear chamber 14, but also keep the sound of the sealed headphones in the rear chamber 14 and the tuning chamber 23 to be clear. Can be prevented from being interfered by external sound.

FIG. 9 is an impedance curve diagram of the tuning headphones 1 in which the passive diaphragm 40 is attached to the tuning lid 20 under different states. In FIG. 9, S1 ′ is an impedance curve when the speaker unit 30 is under free space. S2′-S6 ′ are impedance curves when the speaker unit 30 is in the ventilation lid 10 and the tuning diaphragm 20 is provided with a passive diaphragm 40. S2 ′ is a state in which the tuning hole 221 and the vent hole 121 are not communicated at all. S3 ′ is a state in which the number of communication holes between the tuning hole 221 and the vent hole 121 is one. S4 ′ is a state in which the number of communication holes between the tuning hole 221 and the vent hole 121 is two. S5 ′ is a state where the number of communicating holes between the tuning hole 221 and the vent hole 121 is three. S6 ′ is a state in which the number of communication holes between the tuning hole 221 and the vent hole 121 is four. As it can be seen from Figure 9, the speaker unit 30 and the ventilator cap 10, when the tuning lid 20 and the passive diaphragm 40 are attached, f _o and Q value of the impedance curve S2 '-S6' is changed.

In another embodiment of the present invention, the tuning headphones 1 further include tuning paper (not shown). The tuning paper is made of a semi-breathable material. When the tuning paper closes one end of the tuning hole 221, when the airflow passes through the ventilation hole 121 and further passes through the tuning hole 221, the tuning paper passes through the tuning paper and further the speaker unit in the rear chamber 14. Change the damper state for 30. As a result, the f _o and Q values of the tuning headphones 1 change.

Here, the parameter states of the various modes described above will be briefly described. The voice frequency emitted when a person speaks is approximately 500-6000 Hz. Therefore, the f _o and Q values when the number of communication holes between the tuning hole 221 and the vent hole 121 of the tuning headphone 1 is 0 are preferable chat modes. The sound frequency of game sound is generally low, and the sound is sudden. Therefore, the f _o and Q values when the number of communication holes between the tuning hole 221 and the vent hole 121 of the tuning headphone 1 is 1 are preferable game modes. The audio frequency of music is low and the audio needs to be continued. Therefore, the f _o and Q values when the number of communication holes between the tuning hole 221 and the vent hole 121 of the tuning headphone 1 is 5 are preferable music listening modes. The above description of the number of communication holes is not limited to these because it is determined with reference to the standards and materials of the vent lid 10, the tuning lid 20, the speaker unit 30, and the passive diaphragm 40.

  As shown in FIGS. 1 and 7, the tuning headphones 1 include a housing 60 in the embodiment of the present invention. The ventilation lid 10, the tuning lid 20, and the speaker unit 30 are accommodated in the housing 60. When the speaker unit 30 is exposed from the housing 60, the speaker unit 30 emits sound toward the user's ear 9. Since the elastic member 50 is provided at one end of the housing 60 near the user's ear 9, the tuning headphone 1 has an ear covering type headphone structure.

  Accordingly, the tuning headphones 1 have the following features. That is, the ventilation lid 10 and the tuning lid 20 are provided with a ventilation hole 121 and a tuning hole 221 corresponding to the number of holes, respectively, and the tuning lid 20 is provided in the ventilation lid 10 so as to be rotatable. Can adjust the magnitude of the Q value for the speaker unit 30 in the rear chamber 14, and can select an appropriate mode of the tuning headphones 1.

  The above description is merely a preferred embodiment of the present invention, and any equivalent changes or modifications made based on the scope of the claims of the present invention are included in the scope of the present invention.

1 Tuning headphones
10 Ventilation lid
11 Annulus
111 Curved surface
12 Ventilation plane
121 Vent
13 Position restriction wall
131 containment space
14 Back room
20 Tuning lid
21 Annulus
211 Grip part
22 Tuning plane
221 Tuning hole
23 Tuning room
30 Speaker unit
40 Passive diaphragm
41 Center protrusion
42 Ring-shaped protrusion
43 Weight placement board
50 Elastic member
51 Front room
60 Housing
9 User's ear

Claims (7)

Tuning headphones placed in the user's ear,
A vent lid having an annular portion whose inner side surface is a curved surface, and a vent plane provided with at least one vent hole, wherein the vent plane is provided at one end of the annular portion away from the user's ear;
Tuning, wherein at least one tuning hole is provided, and the communication cross-sectional area of the tuning hole and the vent hole is adjusted by being rotatably covered on one end of the vent lid that is away from the user's ear. A lid,
A speaker unit provided at one end of the annular portion near the user's ear;
Only including,
The tuning headphones according to claim 1, wherein an inner side surface of the annular portion of the ventilation lid is curved toward a center direction of the annular portion .   The tuning headphone according to claim 1, further comprising a passive diaphragm provided at one end of the tuning lid away from the user's ear. The tuning headphone according to claim 2 , wherein the passive diaphragm has a ring-shaped protrusion and a center protrusion, and the ring-shaped protrusion surrounds the center protrusion. The tuning headphones according to claim 2 , wherein the passive diaphragm is provided with a weight placement board. A position limiting wall is formed extending in a direction away from the user's ear on the ventilation plane, and a housing space is surrounded by the position limiting wall,
The tuning lid includes an annular portion and a tuning plane, the tuning plane is provided with at least one tuning hole, the tuning lid is accommodated in the accommodation space, and the tuning plane is applied to the ventilation plane. The tuning headphone according to claim 1. A grip portion is provided at one end of the annular portion of the tuning lid away from the user's ear, and an outer diameter of the grip portion is larger than an outer diameter of one end of the vent lid away from the user's ear. The tuning headphones according to claim 5 , wherein the tuning headphones are large.   The tuning headphone according to claim 1, wherein the tuning lid further includes tuning paper for closing the tuning hole.

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