Technical field
[0001]
Technology disclosed herein relates to an acoustic output device used by mounting on the user's ear.
BACKGROUND
[0002]
Reproducing apparatus or small acoustic transducer i.e. earphone for converting the acoustic signals electrical signal output from the receiver speaker that is close to the ear or ear drum to have been widely used. This type of sound reproduction apparatus, since emit sound as heard by the user himself wearing, are made available in a variety of environments.
[0003]
　Many of the earphones that are currently popular, has a shape that plugs into the user's ear. For example, earbud earphone are shaped to hook the auricle of the user. Further, canal type earphone ear hole (the external auditory canal: ear canal) is a deeply inserted in shape to be used for, many structurally sealed, since the sound insulation performance is relatively good, even slightly noisy place the user is merit to enjoy the music.
[0004]
　Canal type earphone is generally a speaker unit for converting an electric signal into an acoustic signal, as a basic component a generally cylindrical housing that also serves as a sound tube (housing), speaker units for housing one end ( It is attached to the outside) of the ear canal. The housing, the radiation outlet to convey the eardrum is provided to emit air vibrations generated by the speaker unit into the ear canal. Further, the other end of the housing (insertion portion of the ear canal), typically, the user has earpiece (removable component) is attached to a matching shape in the ear canal when worn. For example, by arranging the sound tube obliquely from a position off-center of the housing, on which matches the housing to the cavum conchae, it is possible to arrange the sound tube to the ear canal entrance, the canal type earphone device proposals have been made (for example, refer to Patent Document 1).
[0005]
　User wearing the earphone, even while listening to the sound to be presented, for example, such as when the surrounding people spoke, it is necessary to listen ambient sound at the same time. However, most of the conventional earphone such as canal type, in the mounting state, it is extremely difficult for the user to take listen to ambient sound. This is because from the viewpoint of preventing leakage to the outside of improvement and playback sound of the playback sound quality, has become almost completely blocked structure of the ear hole. For example, walking, jogging, cycling, climbing, skiing, and when performing the sport in the open air and indoor, including a snowboard, at the time of the operation or navigation, can not I take listening to the ambient sound is a dangerous situation . In addition, at the time of communication or presentation, and can not take listening to the ambient sound, it leads to a decrease in services.
[0006]
　In addition, the conventional earphone, also to the people around, the user of the mounting state is to look like blocking the ear canal, will be giving a hard impression that speak to the wearer of the earphone, inhibiting the communication between people also it will be.
CITATION
Patent Document
[0007]
Patent Document 1: Japanese Patent No. 4709017
Summary of the Invention
Problems that the Invention is to Solve
[0008]
　The purpose of the technology disclosed herein is to provide an excellent acoustic output device used by mounting on the user's ear.
Means for Solving the Problems
[0009]
　Technology disclosed herein has been made in consideration of the above problems,
　a sound generating unit,
　a holding unit which has an acoustic transmitting part, holds the sound generation unit in the vicinity of the ear canal entrance of the user,
an acoustic output device comprising a.
[0010]
　The acoustically transparent portion is formed of a structure having an opening. The housing of the sound generation unit is integrated with a portion of the structure having the opening. Then, by engagement with the beads and chopped mark of the user, it said audio output device is worn on the ear of the user.
[0011]
　Also, the sound generation unit may include a sound device consisting of dynamic driver, the back of the housing of the sound generating unit, high pressure generated in the back cavity of the driver (front cavity opposite phase sound) hollow exhaust portion for discharging to the outside is coupled to. The exhaust unit is that also serves as a duct for inserting the signal line passes through the beads and chopped mark from the back side of the housing has an outer exhaust hole of the auricle.
Effect of the invention
[0012]
　According to the technique disclosed herein, is used by mounting on the user's ear, it is possible to provide an excellent sound output apparatus ear hole open.
[0013]
　Note that the effect described herein is merely illustrative, the effect of the present invention is not limited thereto. Further, the present invention is, in addition to the above effects, in some cases exhibit a further additional effect.
[0014]
　Other objects, features and advantages of the technique disclosed herein, will become apparent from the following detailed description based on embodiments and the accompanying drawings described below.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015]
[1] Figure 1 is a diagram showing an external configuration of an acoustic output device 100.
FIG. 2 is a diagram showing an external configuration of an acoustic output device 100.
FIG. 3 is a diagram showing an external configuration of an acoustic output device 100.
[4] FIG. 4 is a diagram showing an external configuration of an acoustic output device 100.
FIG. 5 is a diagram showing the internal configuration of a sound generation section 110.
FIG. 6 is a diagram showing the internal configuration of a sound generation section 110.
[7] FIG. 7 is a diagram showing a state of mounting the sound output apparatus 100 to the user's left ear.
[8] FIG. 8 is a diagram showing an external configuration of an acoustic output device 800.
[9] FIG. 9 is a diagram showing an external configuration of an acoustic output device 800.
[10] FIG 10 is a diagram showing an external configuration of an acoustic output device 800.
[11] FIG 11 is a diagram showing an external configuration of an acoustic output device 800.
[12] FIG 12 is a diagram showing a state of mounting the sound output apparatus 800 to the user's left ear.
[13] FIG 13 is a diagram showing an external configuration example of a sound output apparatus having a holding portion which is a C-shape.
[14] FIG 14 is a diagram showing the structure of the auricle.
DESCRIPTION OF THE INVENTION
[0016]
　It will be described in detail embodiments of the technology disclosed herein with reference to the drawings.
[0017]
　In FIGS. 1-4, the appearance of the sound output apparatus 100 according to the technology disclosed herein is shown while changing the viewing direction. In FIGS. 1 to 4, only shows the left and right of one of the audio output device 100, by mounting the left and right pair of sound output apparatus 100 to each ear of the left and right user, to be able to realize a stereo playback It is to be understood.
[0018]
　Audio output device 100 includes a sound generator 110, a holding portion 120 for supporting the sound generator 110. The acoustic generating unit 110, with a built-in sound device for generating sound in its housing, a short hollow sound tube to the front of the housing (side facing the direction of the entrance of the ear canal when mounted on the auricle) guide portion 111 is projected.
[0019]
　Sound generating unit 110 is composed sound device (described later) to produce the sound pressure changes, such as dynamic drivers having a diameter of about 9 mm, the housing is integral with the part of the holding portion 120. In the example shown in FIG. 1 and the like, although the housing of the sound generating portion 110 is coupled with the inner surface of the holding portion 120, designed and which binds to the outer surface of the holding portion 120 for a small, the sound generator 110 housing designed to bind to the holding portion 120 in the vicinity of the center of the also conceivable.
[0020]
　Sound guide portion 111 projecting from the entrance direction of the ear canal in (front side of the diaphragm disposed within the housing (described later)) front of the sound generating portion 110, a hollow tubular material. Opening at the tip of the sound guide 111 has a sound output hole, the sound guide unit 111 outputs toward the sound generated by the sound generator 110 at the entrance to the ear canal.
[0021]
　Holding unit 120 has a sound transmission portion. In the example shown in FIGS. 1 to 4, the holding portion 120 is made of a structure having openings, the openings corresponding to the acoustically transparent portion. Therefore, even when the holding portion 120 is inserted into the concha cavity of the user, it does not block the ear canal of the user. In other words, the ear canal of the user is open, the sound output apparatus 100 is a ear hole open, can be said to have a sound permeability. In the example shown in FIG. 1 and the like, the holding portion 120, with or without straight portions and curved portions, the shape of a ring, such as O-shaped closed with no cut portion (hereinafter, simply referred to as "O-shaped configuration" ) has a. However, the holding portion, as shown in FIG. 13, with or without straight portion and curved portion, a shape such as a C-shaped open with the cutting unit (hereinafter, simply referred to as "C-shape") there may be a shape that is engaged cavum conchae.
[0022]
　5 and 6 are sectional views of the sound generating portion 110, shows the internal configuration of the housing. However, Figure 5 mainly shows a cross-section of the sound output section, FIG. 6 shows a cross section including an exhaust (described later). Further, for simplification of the drawing, it is not shown for the holder 120.
[0023]
　Inside the sound generator 110, facing in the magnetic circuit formed by the magnet 501, a diaphragm 503 having a voice coil 502 is disposed. Further, the inside of the sound generating unit 110, by the diaphragm 503, is partitioned into the diaphragm front space (front cavity) 504 and the diaphragm back space 505 (back cavity). Then, the signal line when the magnetic field in response to the audio signal inputted to the voice coil 502 via a (not shown) is changed, the diaphragm 503 is the front-rear direction by the magnetic force of the magnet 501 (winding direction of the voice coil 502) by operating the change in air pressure between the diaphragm front space 504 and the diaphragm back space 505 is generated, which is acoustic.
[0024]
　Sound generated by the diaphragm front space 504 is propagated through the tube of the sound guide portion 1651 and is emitted towards the back of the ear canal from the sound output holes at the tip, then it reaches the user's eardrum.
[0025]
　On the other hand, as sound generated by the diaphragm back space 505 (diaphragm front space 504 and the negative-phase sound) does not interfere with vibration of the diaphragm 503, the exhaust hole for discharging to the outside of the housing of the sound generator 110 is necessary.
[0026]
　Sound pickup apparatus 1600 includes an acoustic generator 110 is assumed to be used by mounting on a user's cavum concha (that will be described later and see FIG. 7). If the drilling of the back like the exhaust hole of the housing of the sound generator 110, it means that the sound generated by the diaphragm back space 505 is released in a concha cavity, generated by the sound generator 110 It is a big noise for that playback sound.
[0027]
　Therefore, as shown in FIGS. 5 and 6, on the rear side of the sound generation section 110 (diaphragm 503), an exhaust portion 506 is disposed. The exhaust unit 506, a hollow tube with enough length to reach the outside of the through the beads and chopped mark auricle from the back side of the housing of the sound generating portion 110, the opening of the tip diaphragm It has an exhaust hole for discharging sound generated in the back space 505. With such a configuration, the exhaust unit 506 it is possible to emit a sound generated by the diaphragm back space 505 outside of the auricle, it is possible to suppress the influence of the sound leakage. The exhaust unit 506 may be shared with the duct for inserting the signal line 130 such as an audio signal and power supply (see FIGS. 1-4).
[0028]
　Incidentally, pronunciation element shown in FIGS. 5 and 6, is a dynamic type driver, it is also possible to use a type of electrostatic driver causing Similarly sound pressure changes. Alternatively, or using completely different types sound device, such as a balanced armature type or a piezoelectric type may be or using a hybrid which combines the plurality of types of sound elements.
[0029]
　Figure 7 shows a state of mounting the sound output apparatus 100 to the user's left ear. Since sound generation section 110 is diameter of about 9 mm and smaller, it is integrally formed with the holding portion 120 of the sound generating portion 110, to be mounted across the sound output apparatus 100 to the user of the cavum conchae possible, it is to be understood that.
[0030]
　In the example shown in FIG. 7, the holding portion 120 made of a structure of the punching in that the O-shaped or the shape is inserted into the ear concha cavity with the acoustic generator 110 to integrated, the cavum conchae in contact with the bottom surface (holding unit 120 may be a C-shape instead of the O-shaped). The exhaust portion 506 projecting from the rear of the housing of the sound generating unit 110, passes through a valley of beads and chopped marks. Then, the exhaust portion 506 to get caught in the valleys of the beads and chopped mark, by the holding portion 120 is engaged with the inner wall of the beads and chopped marks or tragus, the sound output apparatus 100 is preferably attached to the auricle that.
[0031]
　Holding portion 120 is a size of, for example, about 13.5 mm, can be attached to the user of the cavum conchae. Although there are individual differences in the size of the cavity of the concha, the outer diameter of the holding portion 120 (or width) when greater than 16 mm, the person can not be inserted the holding portion 120 to the cavum conchae increases.
[0032]
　The exhaust unit 506, unwanted sound (occurring to the back cavity, the front cavity and the negative-phase sound) purpose of discharging out of the housing of the sound generating unit 110, and a duct for signal lines from the viewpoint also serves to, it is preferable inner diameter as large as possible. On the other hand, as shown in FIG. 7, the exhaust unit 506 passes through the valley of the beads and chopped marks. Therefore, when the outer diameter of the exhaust portion 506 to more than the gap of beads and chopped marks (e.g. 3.6 mm), it is concerned to provide tightness to the user's ear for cleavage of beads and chopped mark is widened.
[0033]
　In a state where the holding portion 120 which is inserted into concha cavity is engaged with the inner wall of the beads and chopped marks or tragus 7, although not visible in FIG. 7, the distal end of the sound guide portion 111 as the acoustic output aperture of the posture facing the entrance of the ear canal, sound guide portion 111 is projected from the front surface of the housing of the sound generating portion 110 (front cavity).
[0034]
　Sound generated by the sound elements in the sound generating unit 110, a sound output hole in the tip of the sound generator sound guide portion 111 projecting from the front surface of the housing 110, when it is emitted towards the back of the ear canal, then to reach the eardrum.
[0035]
　Holding unit 120 is a hollowed structure, almost all of the inner is opening for transmitting sound. Further, since the housing of the sound generating portion 110 is integral with the part of the holding portion 120, it does not interfere at all the inside of the opening portion of the holding portion 120. Therefore, even when the entire audio output device 100 is inserted into concha cavity, it does not block the ear canal of the user. In other words, the ear canal of the user is open, the sound output apparatus 100 is a ear hole open, can be said to have a sound permeability.
[0036]
　Sound generating unit 110, since it is disposed in the concha cavity, even by reducing the output, it is possible to obtain sufficient sound quality sound output hole in the tip of the sound guide portion 111. Therefore, it is possible to prevent leakage to the outside of the generated sound of the sound generator 110.
[0037]
　Also, the directivity of the air vibrations emitted from the tip of the sound guide portion 111 also contributes to the prevention of sound leakage. Air vibrations are emitted from the tip of the sound guide portion 111 toward the interior of the ear canal. Ear canal is a closed space in which the cylindrical draw curve S-shaped, generally a length of approximately 25 to 30 mm. Tip air vibrations that are emitted towards the back of the ear canal from the sound guide portion 111 and reaches the directional to the eardrum I following, some is reflected. The air vibrations from the increased sound pressure in the ear canal, inter alia improved low frequency sensitivity (gain). On the other hand, outer or outside the ear canal is an open space. Thus, air vibrations emitted outside the ear canal from the distal end of the sound guide 111, there is no directivity and is emitted to the outside, sharply attenuated. In a state where the holding portion 120 is engaged with beads and chopped mark, the tip of the sound guide portion 111 is a sound output hole, rather than near the ear canal entrance, it is preferable that the face rather cavum conchae.
[0038]
　8 to 11 show the appearance of the sound output apparatus 800 according to another construction example, while changing the viewing direction. In FIG. 8 to 11, only shows the left and right of one of the audio output device 100, by mounting the left and right pair of sound output apparatus 800 to each ear of the left and right user, to be able to realize a stereo playback It is to be understood.
[0039]
　Audio output device 800 includes a sound generating unit 810, a holding portion 820 for supporting the sound generation unit 810. The acoustic generating unit 810 with a built-in sound device for generating sound in its housing, an acoustic on the front surface of the housing (side facing the direction of the entrance of the ear canal when mounted on the auricle), generated sound output holes 811 are bored in the output crescent shape.
[0040]
　Sound generating unit 810 is composed sound device (described above) to produce the sound pressure changes, such as dynamic drivers of about 6 millimeter diameter, the housing is integral with the part of the holding portion 820. The internal structure of the sound generating portion 810, not shown, as well as the detailed description. As a sound element, is basically uses a dynamic driver, it is also possible to use a type of electrostatic driver causing Similarly sound pressure changes. Alternatively, or using completely different types sound device, such as a balanced armature type or a piezoelectric type may be or using a hybrid which combines the plurality of types of sound elements.
[0041]
　8 In the example shown in to 11, but the housing of the sound generating portion 110 is coupled with the inner surface of the holding portion 820, designed and which binds to the outer surface of the holding portion 820 because of the small size, sound generating unit 810 design of the coupling and the holding portion 820 in the vicinity of the center of the housing may also be considered.
[0042]
　Holding portion 820 is a structure of the punching in that the O-shaped or C-shaped, it is possible to almost all of the inner is an opening, which functions as an acoustic transmission portion. In the illustrated example, the holding portion 820 is a ring in which the O-shaped configuration. Therefore, even when the holding portion 820 is inserted into the concha cavity of the user, it does not block the ear canal of the user. In other words, the ear canal of the user is open, the sound output apparatus 800 is a ear hole open, can be said to have a sound permeability.
[0043]
　Further, on the rear side of the housing of the sound generating unit 810, a duct 830 for inserting a signal line 840 such as an audio signal and power is connected. When using the sound element causing a pressure change as a dynamic driver or electrostatic driver sound generating unit 810, housing the acoustic front cavity opposite phase generated in the housing (back cavity) it is necessary to escape to the outside of it, it can also serve this duct 830 as an exhaust unit. Of the duct 830, the location spaced from the holding portion 820, the exhaust hole 831 for releasing such a sound is bored. Exhaust holes 831, so that sufficiently spaced from the acoustic output aperture 811, never such that noise of the reproduced sound of the sound generating portion 810.
[0044]
　Figure 12 shows a state of mounting the sound output apparatus 800 to the user's left ear. Since sound generation section 810 is approximately 6 mm and a small diameter, it is integrally formed with the holding portion 820 of the sound generating portion 810, to be mounted across the sound output apparatus 800 to the user of the cavum conchae possible, it is to be understood that.
[0045]
　In the example shown in FIG. 12, the holding portion 820 made of a structure of the punching in that the O-shaped configuration is inserted into the ear concha cavity with the acoustic generator 810 integrated, the bottom surface of the cavity of the concha in contact with. Holder 820 may be in the form of a C-shaped. Further, the duct 830 which is connected to the back of the housing of the sound generating unit 810, passes through a valley of beads and chopped marks. Then, the duct 830 so as to get caught in the valleys of the beads and chopped traces, the holding portion 820 that is engaged to the inner wall of the beads and chopped marks or tragus, audio output device 800 is suitably mounted to the pinna .
[0046]
　Holding portion 820 is a size of, for example, about 13.5 mm, can be attached to the user of the cavum conchae. Although there are individual differences in the size of the cavity of the concha, the outer diameter of the holding portion 820 (or width) when greater than 16 mm, the person can not be inserted the holding portion 820 to the cavum conchae increases.
[0047]
　Another object of the duct 830, along with inserting the signal line 840 to exhaust (generated back cavity, the front cavity and the negative-phase sound) unnecessary sound to the outside of the housing of the sound generating portion 810 from inner diameter is preferably as large as possible. On the other hand, as shown in FIG. 12, the duct 830 passes through the valley of the beads and chopped marks. Therefore, when the outer diameter of the duct 830 to more beads and chopped scars gap (e.g., 3.6 mm), it is concerned to provide tightness to the user's ear for cleavage of beads and chopped mark is widened.
[0048]
　In a state where the holding portion 820 which is inserted into concha cavity is engaged with the inner wall of the beads and chopped marks or tragus as shown in Figure 12, but not visible in FIG. 12, the housing of the sound generating portion 810 sound output holes 811 drilled in the front is a posture facing the entrance of the ear canal of.
[0049]
　Sound generated by the sound elements in the sound generating unit 810, the sound output holes 811 bored in the front surface of the housing of the sound generating unit 810, when it is emitted towards the back of the ear canal, then reaches the eardrum .
[0050]
　Holding portion 820 is a hollowed structure, almost all of the inner is opening for transmitting sound. Further, since the housing of the sound generating portion 810 is integral with the part of the holding portion 820, it does not interfere at all the inside of the opening portion of the holding portion 820. Therefore, even when the entire audio output device 800 is inserted into concha cavity, it does not block the ear canal of the user. In other words, the ear canal of the user is open, the sound output apparatus 800 is a ear hole open, can be said to have a sound permeability.
[0051]
　Sound generating unit 810, since it is disposed in the concha cavity, even by reducing the output, can be in the acoustic output hole 811 bored in the front surface of the housing to obtain a sufficient sound quality. Therefore, it is possible to prevent leakage to the outside of the generated sound of the sound generating portion 810.
[0052]
　Also, the directivity of the air vibrations emitted from the sound output holes 811 also contributes to the prevention of sound leakage. Air vibrations are emitted toward the inside of the ear canal from the sound output holes 811. Ear canal is a closed space in which the cylindrical draw curve S-shaped, generally a length of approximately 25 to 30 mm. Air vibrations emitted toward the back of the ear canal from the sound output holes 811, upon reaching the directional to the eardrum I following, some is reflected. The air vibrations from the increased sound pressure in the ear canal, inter alia improved low frequency sensitivity (gain). On the other hand, outer or outside the ear canal is an open space. Thus, air vibrations emitted outside of the ear canal from the sound output holes 811, there is no directivity and is emitted to the outside, sharply attenuated. In a state where the holding portion 820 is engaged with beads and chopped mark, the sound output holes 811, rather than near the ear canal entrance, it is preferable that the face rather cavum conchae.
[0053]
　It will be summarized, wherein the ear canal open acoustic output device. The following features, audio output device 100 shown in FIGS. 1 to 4, and applies to any of the sound output apparatus 800 shown in FIGS. 8 to 11.
[0054]
(1) The user, in wearing the audio output device can also listen to ambient sound natural. Therefore, space grasp, danger appreciated, such as the grasp of the subtle nuances of the time of conversation and conversation, can be used normally the function of human beings that is dependent on the auditory characteristics.
[0055]
(2) acoustic output device, because it does not block the ear canal at the time of mounting, as viewed from the others, and the good appearance even speak. In addition, the user wearing the audio output device, always because the ambient sound is heard, as human nature, from the acoustic information, such as footsteps When approaching a person, "changing the orientation of the body in the direction of the sound", " take not a little passive attitude such as moving the line-of-sight "in the direction of the sound. Such a behavior, because it gives the impression that "may speak" to the others, does not interfere with the communication between people.
[0056]
(3) audio output device is not affected by the self-generating system noise sound. The other end of the sound guide part is a sound output hole in the ear canal when worn, since apart from the inner wall of the ear canal, sound when swallowing or the user's own voice, beating sound, chewing sounds, spit, Chiryuoto , breathing sound, vibration noise transmitted through the body when walking, not affected by the rustling of clothes sound, such as a code. In addition, the frictional sound of the earpiece and the ear canal inner wall does not occur. Further, since the ear hole is released, there is no fear of confined humidity of the ear canal.
[0057]
(4) acoustic output device, a good attachment of the ear, can be absorbed positioning variations due to such individual differences in ear size and shape. And the holding portion engages the beads and chopped traces are configured to sound output hole of the other end of the sound guide part is supported so as to face the back side of the ear canal. Therefore, the sound conductor as in the case of ear type audio output apparatus wrap helix, does not require a length adjustment. Further, by the holding portion engages the beads and chopped mark, it is possible to maintain a good mounting state. Further, since a structure in which the whole audio output device is mounted on the concha cavity of the user, the user glasses or spectacle-type wearable device, be used in combination Ear devices, these other devices It does not interfere with.
[0058]
(5) the sound guide is, to propagate the sound generated by the sound generator from the back of the ear at the shortest distance to the vicinity of the entrance of the ear canal. Therefore, compared with the ear type audio output apparatus, an amount corresponding to the length of the sound guide part is reduced, it is possible to suppress the acoustic loss to a minimum, and the sound generating unit to a low output, a good sound quality it is possible to obtain. As mentioned in addition, high dimensional tolerances of the sound generating portion, it is possible to design corresponding to the acoustic band and sound pressure required.
[0059]
　For reference, the structure of the auricle, previously described with reference to FIG. 14. Broadly speaking the structure of the auricle, in order from the outside, there helix, antihelix, concha, the tragus. Further, on the outside of the tragus, it has antitragus a projection forming a pair. Notches located between the tragus and antitragus is a tragus and chopped mark. The lower end of the auricle is earlobe.
[0060]
　Helix is ​​at the outermost periphery of the ear, a portion for forming the contour of the ear. Helix, after bending inward in the vicinity of the center of the ear (near top of the ear canal entrance) is near the center of the ear and substantially horizontally passes, and has a projection that divides the concha vertically . Mimiwaashi are nearby helix is ​​bent toward the inside of the auricle, helix root is a partial coming enters the concha of Mimiwaashi 306.
[0061]
　Antihelix is ​​a ridge extending from the antitragus upwards, corresponding to the edge of the concha. The ridge line of the pair helix bifurcated branches of above say antihelix on legs, corresponding to the upper side of the triangular fossa. Further, the branch below say antihelix under legs, corresponding to the lower side of the triangular fossa.
[0062]
　Concha is, in the center of the ear, is the most recessed portion, on the border of the helix root, and concha boat made from an elongated recess in the upper half, divided into ear instep concha of the lower half. In addition, in the vicinity of the tragus of the cavity of the concha, there is the ear canal entrance.
[0063]
　Sankaku窩 is depression of triangle having the antihelix on legs and antihelix under legs and helix three sides. Further, scaphoid fossa is between antihelix and the helix is ​​depression is above the outer portion in terms of the entire auricle.
Industrial Applicability
[0064]
　Above with reference to the specific embodiments have been described in detail the technology disclosed in the present specification. However, it is obvious that those skilled in the art without departing from the scope of the technology disclosed herein can make modifications and substitutions of the embodiments.
[0065]
　Audio output device according to the technology disclosed herein is used by mounting on the ear of the user as well as the so-called earphones, while also realizing a listening characteristic of the non-wearing state equivalent ambient sound in the attached state , it is possible to output the sound information at the same time, and does not seem to block the ear canal of the user from the surrounding people even in the mounting state, is characterized such. Taking advantage of such characteristics, an acoustic output device according to the technology disclosed herein, walking, jogging, cycling, climbing, skiing, in various sports fields (play performed outdoors and indoor including snowboarding and such as remote coaching), communication or presentation areas where ambient sound listening and audio information presented is required at the same time (for example, play Ferris-time information supplement, museum audio information presentation, bird watching (squeak listening), etc.), operation or navigation , security guards, can be applied to a newscaster.
[0066]
　In short, it had been described technique disclosed in this specification by way of exemplary embodiments should not be construed as limiting the contents of this specification. In order to determine the gist of the technology disclosed herein, it should be referred to the claims.
[0067]
　Incidentally, the technique disclosed herein, it is also possible to adopt the following configurations.
(1) and the sound generator section,
　it has an opening, and a holding portion for holding the sound generating unit in the vicinity of the ear canal entrance of the user
audio output device having a.
(2) the acoustically transparent portion is made of a structure having an opening,
　the housing of the sound generation unit is integrated with a portion of the structure having the opening,
the acoustic described in (1) output device.
(3) the housing of the sound generation unit is coupled with the inner surface of the structure having the opening,
the sound output apparatus according to (2).
(4) the holding portion engages the beads and chopped mark of the user,
the acoustic output device according to any one of the above (1) to (3).
(5) the sound generating unit includes a sound element consisting of dynamic driver,
acoustic output device according to any one of the above (1) to (4).
(6) the having a hollow exhaust portion coupled to the rear surface of the housing of the sound generator,
the sound output device according to any one of (1) to (5).
(7) the exhaust portion passes through the beads and chopped mark from the back side of the housing has an outer exhaust hole of the auricle,
the sound output apparatus according to (6).
(8) the comprises an insertion signal line to the exhaust portion,
the acoustic output device according to any one of the above (6) or (7).
(9) said protruding from the front surface of the housing of the sound generating portion, the tip comprises a sound guide portion serving as a sound output hole,
the acoustic output device according to any one of the above (1) to (8).
(10) the provided sound output holes formed in the front surface of the housing of the sound generator,
the sound output device according to any one of (1) to (8).
DESCRIPTION OF SYMBOLS
[0068]
　100 ... sound output unit
　110 ... sound generation unit, 111 ... sound guide portion
　120 ... holding section, 130 ... signal line
　501 ... magnet 502 ... voice coil
　503 ... diaphragm, 506 ... exhaust unit
　800 ... sound output unit
　810 ... sound generating unit, 811 ... sound output holes
　820 ... holding portion
　830 ... duct, 831 ... vent hole
　840 ... signal line

The scope of the claims
[Requested item 1]
　A sound generating unit,
　having an acoustically transparent portion, a holding portion for holding the sound generating unit in the vicinity of the ear canal entrance of the user
audio output device having a.
[Requested item 2]
　The acoustically transparent portion is made of a structure having an opening,
　the housing of the sound generation unit is integrated with a portion of the structure having the opening,
the acoustic output device according to claim 1.
[Requested item 3]
　The housing of the sound generation unit is coupled with the inner surface of the structure having the opening,
the acoustic output device according to claim 2.
[Requested item 4]
　The holding portion engages the beads and chopped mark of the user,
the acoustic output device according to claim 1.
[Requested item 5]
　The sound generation section includes a sound element consisting of dynamic driver,
acoustic output device according to claim 1.
[Requested item 6]
　Having a hollow exhaust portion coupled to the rear surface of the housing of the sound generator,
an acoustic output device according to claim 1.
[Requested item 7]
　It said exhaust portion passes through the beads and chopped mark from the back side of the housing has an outer exhaust hole of the auricle,
the sound output device according to claim 6.
[Requested item 8]
　Comprising an insertion signal line to the exhaust portion,
the acoustic output device according to claim 6.
[Requested item 9]
　Wherein projecting from the front surface of the housing of the sound generating portion, the tip comprises a sound guide portion serving as a sound output hole,
the acoustic output device according to claim 1.
[Requested item 10]
　It includes an acoustic output hole formed in the front surface of the housing of the sound generator,
an acoustic output device according to claim 1.