JP2019050633A - Wearable speaker system - Google Patents

Abstract

To provide a wearable speaker system capable of acquiring higher realistic sensation by reproduction of bass sound.SOLUTION: A wearable speaker system includes an enclosure 101. In a first end region of the enclosure 101, a first speaker unit 102and a first opening 104as an end of a first bass reflex duct are disposed, and in a second end region, a second speaker unit 102and a second opening 104as an end of a second bass reflex duct are disposed. Each of the first and second speaker units 102and 102has a speaker 103a and a passive radiator 105 opposed to the speaker 103. A space between the speaker 103 and the passive radiator 105 included in each of the first and second speaker units 102and 102is connected to a space in the enclosure 101.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wearable speaker system, and more particularly to a wearable speaker system that a listener wears and uses in a part other than the ear.

  As a speaker system for outputting sound, for example, there is one built in a television receiver or the like. However, the built-in speaker of the speaker system does not have a large aperture and can not obtain a large volume. In addition, the bass can not be sufficiently reproduced and the sense of reality may be insufficient. In order to obtain a sense of reality, a speaker system or a headphone having a large aperture speaker is often used.

  In the case of using a speaker system having a large aperture speaker, a certain amount of space is required, which is not suitable for enjoying music while traveling. When headphones are used, music and the like can be enjoyed while moving, but there is a problem that a listener using the headphones can not hear surrounding sounds. Moreover, in the case of headphones, there is also a problem that the sound image feels tired after prolonged use in order to be localized in the head of the listener.

  In order to solve the above problems, Patent Documents 1-4 disclose wearable speaker systems that are worn on the body of a listener and do not block the ears of the listener.

  Patent Document 1 discloses a neck-type wearable speaker device, in which a speaker is located below a jaw of a listener and directed toward the ear. Patent Documents 2 and 3 disclose a wearable speaker device in which speakers are provided on both sides of a neck rest, a speaker for the right ear is located on the right shoulder, and a speaker for the left ear is on the left shoulder. positioned.

  Patent Document 4 discloses an annular neck-type wearable speaker device, and in addition to a speaker, a passive radiator or bass reflex port is provided, and unlike Patent Literature 1-3, bass reproduction is possible, and a listener Can give a sense of presence.

JP, 2009-201088, A JP, 2008-263374, A Japanese Patent Publication No. 8-511151 International Publication No. 2016/039245

  As described above, in the wearable speaker system described in Patent Documents 1 to 3, no mechanism relating to the reproduction of bass is provided. Further, in the wearable speaker device disclosed in Patent Document 4, the speaker, the passive radiator, and the bass reflex port are separated from each other, the bass may not be reproduced sufficiently in some cases, and the sense of reality may be insufficient.

  The present invention has been made in view of the above-described circumstances, and it is an object of the present invention to provide a wearable speaker system in which a higher sense of reality can be obtained by reproduction of bass.

  In order to solve the above-mentioned subject, the wearable speaker system concerning the 1st technical means of the present invention is a wearable speaker system provided with a U-shaped enclosure, and, in the first end region of the enclosure, a first speaker A unit and an end of the first bass reflex duct, and a second speaker unit and an end of the second bass reflex duct are disposed in the second end region of the enclosure; Each speaker unit has a speaker and a passive radiator opposite to the speaker, and a space between the speaker and the passive radiator which each of the first and second speaker units has is a space in the enclosure. It is characterized in that it is connected.

  A second technical means of the present invention is characterized in that in the first technical means of the present invention, the main body portions of the first and second bass reflex ducts intersect at a central portion of the enclosure.

  According to a third technical means of the present invention, in the first or second technical means of the present invention, the first end area and the second end area of the enclosure are in communication with each other. Do.

  According to a fourth technical means of the present invention, in the first or second technical means of the present invention, a partition that separates a plurality of spaces between the first end area and the second end area of the enclosure into a plurality of spaces It is characterized by having.

  According to a fifth technical means of the present invention, in any one of the first to fourth technical means of the present invention, the end of the first bass reflex duct and the second bass reflex when the enclosure is hung on the neck of a listener Each end of the duct is characterized in that it is located below the ear of the listener.

  According to a sixth technical means of the present invention, in any one of the first to fifth technical means of the present invention, when the enclosure is hung on the neck of the listener, the speaker unit is positioned on the upper chest of the listener It features.

  A seventh technical means of the present invention is the fifth or sixth technical means of the present invention, wherein a second buffer is provided between the first end area and the second end area of the enclosure and the listener. A member is provided.

  According to an eighth technical means of the present invention, in any one of the first to seventh technical means of the present invention, the U-shaped interior of the enclosure is provided with a first shock absorbing material.

  According to the present invention, it is possible to provide a wearable speaker system capable of obtaining a higher sense of reality by reproducing bass.

1 is a front view of a wearable speaker system according to Embodiment 1 of the present invention. 1 is a cross-sectional view of a wearable speaker system according to Embodiment 1 of the present invention. It is a figure for demonstrating the wearable speaker system which concerns on Embodiment 1 of this invention. It is a front perspective view of the wearable speaker system which concerns on Embodiment 2 of this invention. It is a front perspective view of the wearable speaker system which concerns on Embodiment 2 of this invention. It is a front perspective view of the wearable speaker system which concerns on Embodiment 3 of this invention. It is a front perspective view of the wearable speaker system which concerns on Embodiment 3 of this invention. It is a front perspective view of the wearable speaker system which concerns on Embodiment 4 of this invention. It is a transparent front view of the wearable speaker system which concerns on Embodiment 5 of this invention.

  Hereinafter, preferred embodiments of the wearable speaker system of the present invention will be described with reference to the drawings. In addition, in the following description, the structure which attached | subjected the same code | symbol also in different drawings may abbreviate | omit the description as it is the same thing. Further, although a plurality of embodiments will be described, the embodiments can be implemented in any combination as long as combinations are possible.

(Embodiment 1)
FIG. 1 is a front view of the wearable speaker system 100 according to the first embodiment. The wearable speaker system 100 includes an enclosure 101. The enclosure 101 is substantially U-shaped when viewed from the front. The shape when the enclosure 101 is viewed from the front can also be expressed as a horseshoe shape, a wedge shape, or the like. Enclosure 101 includes a portion extending from the central portion in both lower left and lower right directions in FIG. 1 and a portion extending downward in FIG. 1 from the portion toward both ends of enclosure 101.

  In addition, as described later with reference to FIG. 3 as one of the use states of the wearable speaker system 100, the central portion of the enclosure 101 is positioned behind the listener's neck, and the other portion of the enclosure 101 is There is a "necking condition" in which the head is positioned diagonally forward from the back of the neck through both sides of the neck. In the following, the left-right direction and the left-right relationship regarding the wearable speaker system 100 will be described as the left-right direction and the left-right relationship for the listener who has the wearable speaker system 100 in a necked state. The "ear" and "right ear" are consistent with what is determined by the listener's right and left.) Therefore, in the following description, the right and left direction and the left and right relationship with respect to the drawings may be the opposite direction and the reverse relationship.

A portion of a predetermined length from the left end of both ends of the enclosure 101 is referred to as a first end area (left end area), and a portion of a predetermined length from the right end of the both ends of the enclosure 101 And the second end area (right end area). The enclosure 101, first opening 104 _L from the left side of the tip is a first speaker unit 102 _L and an end of the first bass reflex duct is disposed in this order, the second speaker unit from the right side of the tip 102 _R and the second opening 104 _R of the end of the bass reflex ducts are arranged in this order. The length of the first end area (left end area) of the enclosure 101 (the “predetermined length from the left end of the both ends of the enclosure 101”) is the first speaker unit 102 _L and the first opening The length of the second end area (right end area) of the enclosure 101 is defined as a length sufficient to include the portion 104 _L (a predetermined length from the tip on the right side of the two ends of the enclosure 101 described above ") has a second speaker unit 102 _R, it is sufficient and length defined to include a second opening 104 _R.

FIG. 2 is a cross-sectional view of the first end region (left end region) of the enclosure 101 along the line I-I in FIG. Figure 2 is a part of the cross-section of the enclosure 101, the cross section of the first speaker unit 102 _L of the cross section and the first opening 104 _L are shown. A cross-sectional view on the way from the tip of the second end area (right end area) of the enclosure 101 to the central part can also be obtained by reversing the right and left in the illustration of FIG. Illustration is omitted.

The first speaker unit 102 _L is provided with a passive radiator 105 _L having an opening toward the lower speaker 103 _L and 2 having an opening upward in FIG. In other words, the passive radiator 105 _L is provided on the rear surface of the speaker 103 _L. Further, it provided in the first speaker unit 102 _L in the opposite direction to the speaker 103 _L and the passive radiator 105 _L. Speaker 103 _L has a frame 103a to form a speaker 103 _L, and the magnetic circuit 103b which is supported by the frame 103a, and a vibration plate 103c which is connected to a magnetic circuit 103b and the frame 103a. The magnetic circuit 103b includes a magnet and a voice coil (not shown), and the voice coil is connected to a cable (not shown), and vibrates the diaphragm 103c in response to a signal supplied to the cable to generate sound.

Passive radiator 105 _L includes a diaphragm 105c connected to the frame 105a and the frame 105a to form a passive radiator 105 _L. Passive radiator 105 _L is, the diaphragm 105c is vibrated in accordance with a variation in pressure of the first speaker unit 102 _L by _the vibration of the diaphragm 103c of the speaker 103 _L, to generate sound. Diaphragm 105c of the thus passive radiator 105 _L is than vibrates in response to variations in pressure, so not to vibrate directly by the magnetic circuit, the passive radiator 105 _L, of the audio speaker 103 _L is generated , becomes the bass frequency is low primarily pressure fluctuations that radiate out of the first speaker unit 102 _L.

Therefore, even if the speaker 103 _L has a small diameter, the bass is emphasized and reproduced by the passive radiator 105 _L disposed in the opposite direction on the back of the speaker 103 _L , and the listener can obtain a high sense of reality .

In the present embodiment, the space within the enclosure 101 is connected to the space between the speaker 103 _L and the passive radiator 105 _L. Further, in the enclosure 101, a hollow space (internal space) is formed in which the first end area (left end area) and the second end area (right end area) communicate with each other. Therefore, variations in the pressure of the first speaker unit 102 _L by _the vibration of the diaphragm 103c of the speaker 103 _L would also transmitted to the interior space of the enclosure 101. As a result, the enclosure 101 also vibrates in response to the vibration of the diaphragm 103 c of the speaker 103 _L , and it is possible to generate a certain degree of sound. Similarly, pressure fluctuation of the second speaker unit 102 _R by the vibration of the vibration plate 103c of the speaker 103 _R would also transmitted to the interior space of the enclosure 101. As a result, the enclosure 101 also vibrates in response to the vibration of the diaphragm 103 c of the speaker 103 _R , and it is possible to further generate a certain amount of sound.

Further, since the space in the enclosure 101 communicates the first end area (left end area) and the second end area (right end area), the diaphragm 103 c of the speaker 103 _L of the first speaker unit 102 _L pressure change due to vibration is possible to reach the second speaker unit 102 _R. Accordingly, pressure changes due to vibration of the diaphragm 103c of the speaker 103 _L affects the vibration of the diaphragm of the passive radiator of the second speaker unit 102 _R (not shown). Similarly, air pressure change due to vibration of the diaphragm of the speaker 103 _R of the second speaker unit 102 _R reaches the first speaker unit 102 _L, of the vibration plate 103c of passive radiator 105 _L of the first speaker unit 102 _L Affects vibration. For this reason, comparing the reproduction of sound between the case of using the conventional headphones that close both ears and the case of using the wearable speaker system 100, the wearable speaker system can hear even the sound that only the left ear can hear when using the conventional headphones. in case of 100, some components are also generated from the passive radiator of the second speaker unit 102 _R. Further, even if the sound is audible only to the right ear in the case of the conventional headphones, a part of the component is also generated from the passive radiator 105 _{L of} the first speaker unit 102 _{L in} the case of the wearable speaker system 100. Become. Therefore, to the listener, even if the left and right voices are not equal, they are mixed and reproduced from the left and right speakers and can be heard, so that the localization position of the sound image can be felt as if it was located forward from inside the listener's head. It can enhance the sense of reality.

Note that the interior space of the enclosure 101, may be arranged a cable for driving the speaker 103 _L in the interior space. Further, by supplying a signal to the cable, the drive circuit and a drive power source for driving a speaker 103 _L may also be disposed in the internal space.

Further, as described above, the first opening 104 _L has a end portion of the first bass reflex duct 106 _L. The other end of the first bass reflex duct 106 _L extends from the first speaker unit 102 _L toward the space in the enclosure 101. Thus, in accordance with the vibration of the diaphragm 103c of the speaker 103 _L, when the air pressure within the enclosure 101 is varied, and out of the air from the first opening 104 _L via the other end of the first bass reflex duct 106 _L is generated The listener can feel the bass by the air coming and going.

In FIG. 2, the height of the first speaker unit 102 _{L and} the height of the enclosure 101 are different from each other, but with the same height, the sense of unity between the first speaker unit 102 _L and the enclosure 101 is further added. It is possible to enlarge and to obtain a decorative effect that gives the viewer of the wearable speaker system 100 an aesthetic appearance. Further, in FIG. 1, although the width in the lateral direction of the first speaker unit 102 _L and the second speaker unit 102 _R is different from the width of the enclosure 101, the lateral direction of the speaker unit 102 _L and the second speaker unit 102 _R It is also possible to make the width of the same as the width of the enclosure 101.

In FIG. 3, the wearable speaker system 100 is placed on the neck of the listener so that the first end area and the second end area of the enclosure 101 are located in front of the neck and the central part of the enclosure 101 is located behind the neck It is a figure which shows the state (head hanging state) which was made. When the wearable speaker system 100 is hung on the neck of the listener as shown in FIG. 3, it is preferable that the first speaker units 102 _L and 102 _R be located at a region of the upper chest of the listener. For example, it is preferable that the first speaker unit 102 _L and a second speaker unit 102 _R is positioned above the supraclavicular and breast. Thus, when multiplied by the wearable speaker system 100 the opening of the speaker 103 _L and 103 _R as upward, the listener is able to feel the vibration of the bass emanating from the passive radiator 105 _L and 105 _R in the body. Further, since the part of the enclosure 101 to contact the rear or upper chest of the listener's neck, feel the vibration of the enclosure 101 due to the vibration of each of the diaphragm 103c speakers 103 _L and 103 _R, and a sound generated by the vibration in the body be able to. Since the enclosure 101 is arranged so as to surround the neck of the listener, the listener can feel that the sound generated by the vibration and vibration of the enclosure 101 is emitted from the periphery of the body to obtain a higher sense of reality Can.

Also, as shown in FIG. 3, when the wearable speaker system 100 is hung on the neck of the listener, the first opening 104 _L and the second opening 104 _R are respectively located below the ears Y _L and Y _R of the listener. Is preferred. As a result, the listener hears a low-pitched sound generated by the air flowing in and out of the first opening 104 _L from the other end of the first bass reflex duct 106 _{L from} the other end of the first bass reflex duct 106 _L due to the vibration of the diaphragm 103 c of the speaker 103 _L Can. Further, the listener can hear the bass generated by out of air from the second opening 104 _R via the main body portion from the other end of the second bass reflex duct due to vibration of the diaphragm 103c of the speaker 103 _R. Therefore, a higher sense of reality can be obtained.

As described above, according to the present embodiment, bass reproduction is performed by the speaker 103 _L and the passive radiator 105 _L , the speaker 103 _R and the passive radiator 105 _R , and the first bass reflex duct 106 _L and the second bass reflex duct 106 _R. And the listener can get a higher sense of reality.

  In addition, even if the wearable speaker system 100 is in a necked state, unlike the headphones, the ears of the listener are not blocked. Therefore, since the sound image is not localized in the head of the listener, it is less likely to feel tired. Also, by not blocking the listener's ear, the listener can pay attention to the surroundings in order to avoid danger and the like because the listener can hear surrounding sounds. In addition, by putting the wearable speaker system 100 in a necked state, since it is mounted at a position close to the ear, the sound field does not change even if it moves, and sufficient sound pressure can be obtained even with a small volume. .

  As a use scene of the wearable speaker system 100 according to the present embodiment as described above, the user listens to music etc. in combination with a music playback device, a smartphone or a tablet type terminal, or adds a voice to video displayed on the screen of the smartphone or tablet terminal. There is a scene to watch at In addition, it is also possible for the elderly person to reproduce the sound of a television which is difficult to hear due to the decline in hearing ability by the wearable speaker system 100 at the ear. In addition, by combining with virtual reality and augmented reality systems, you can gain a sense of realism through sight and hearing.

Second Embodiment
FIGS. 4 and 5 are front transparent views of the wearable speaker system 100 according to Embodiment 2 of the present invention as viewed from the front.

4, the main body portion of the first bass reflex duct 106 _L and the second bass reflex duct 106 _R is a diagram shows the dotted line. The length of the body portion of the first bass reflex duct 106 _L and the second bass reflex duct 106 _R, depending on whether you want to emphasize what range of the low-frequency region of the sound emitted from the speakers 103 _L and 103 _R, arbitrarily selected be able to. In general, when the length of the body portion of the first bass reflex duct 106 _L and the second bass reflex duct 106 _R is larger, so that the range of lower frequency is emphasized.

The first bass reflex duct 106 _L and the second bass reflex duct 106 _R may be related to the localization position of the sound as described below. For example, as shown in FIG. 5, the lengths of the main body portions of the first bass reflex duct 106 _L and the second bass reflex duct 106 _R are further increased, and the other ends 107 _L and 107 _R exceed the central portion of the enclosure 101. May be located. In other words, the main body portion of the first bass reflex duct 106 _L and the second bass reflex duct 106 _R may intersect in a region including the central portion of the enclosure 101.

According to such a configuration of the first bass reflex duct 106 _L and the second bass reflex duct 106 _R, the first bass reflex duct 106 _L, pressure fluctuations corresponding to the sound generated by the second speaker unit 102 _R is first openings 104 is led to _L, the second bass reflex duct 106 _R, pressure fluctuations corresponding to the sound generated by the first speaker unit 102 _L is guided to the second opening 104 _R. Therefore, the first opening 104 _L occur out of the air corresponding to the sound generated by the second speaker unit 102 _R, the second opening 104 _R corresponding to the sound generated by the first speaker unit 102 _L Flow of air occurs.

  Therefore, the listener sounds as if the voice heard on the left ear is mixed with the right voice and the voice heard on the right ear is mixed with the left voice, so it seems that the localization position of the voice has moved forward. As a result, a higher sense of reality can be obtained than the configuration shown in FIG.

(Embodiment 3)
6 and 7 are front transparent views of the wearable speaker system 100 according to Embodiment 3 of the present invention as viewed from the front.

In FIG. 6 and FIG. 7, the part disposed inside the enclosure 101 is indicated by a dotted line. For example, in FIG. 6, the main body of the first bass reflex duct 106 _L and the second bass reflex duct 106 _R are shown by dotted lines, and it is shown by the dotted lines that the partition 108 is arranged at the center of the enclosure 101. ing.

The partition wall 108 is a member that divides the internal space of the enclosure 101. The partition wall 108, the interior space of the enclosure 101 includes an internal space 108 _first side of the first end region (left end region), the internal space 108 _second side of the second end region (right end region), the It is separated into two spaces. Internal space 108 ₁ is connected to the first opening 104 _L and the first speaker unit 102 _L, the internal space 108 ₂ is connected to the second opening 104 _R and the second speaker unit 102 _R. Thus, pressure fluctuations in the inner space 108 in _1, no longer transmitted is the interior space 108 _2, also pressure variations in the interior space 108 within ₂ is not transmitted even to the interior space 108 _1.

For this reason, it is possible to hear so-called crisp sound due to the separation characteristic of the left and right of the sound generated by the first speaker unit 102 _L and the second speaker unit 102 _R being increased by the partition wall 108.

Note that a plurality of partition walls 108 can be provided. Thus, it is possible to the internal space 108 ₁ and the inner space 108 _2, adjusted to less than half the length of the enclosure 101.

FIG. 7 is a view showing a state in which two partitions 108 _L and 108 _R are disposed in the enclosure 101. Drive power sources and drive circuits for driving the speakers 103 _L and 103 _R and an input part of an external sound source can be disposed between the two partition walls 108 _L and 108 _R. As an input portion of the external sound, for example, providing the phone jack on the enclosure 101, the entry and exit of air through the phone jack may occur, there is a case where the acoustic characteristics of the wearable speaker system 100 is changed, the partition wall 108 _L and By providing a phone jack between 108 _R , it is possible to prevent a change in acoustic characteristics from occurring.

(Embodiment 4)
FIG. 8 is a front view of the wearable speaker system 100 according to the fourth embodiment of the present invention. The difference from the previous embodiments is that a neck cushioning member 109 is formed on the inside of the U-shape of the enclosure 101 by cushioning materials 110 _L , 110 _C and 110 _R. The neck cushioning member 109 may be referred to as a first cushioning member.

Neck abutting the buffer member 109, when the neck state as shown wearable speaker system 100 in FIG. 3, to reduce the vibration of the enclosure 101 caused by the vibration of the speaker 103 _L and 103 _R respectively of the diaphragm 103b, It prevents the vibration of the enclosure 101 from being transmitted directly to the listener. If the first and second speaker units 102 _L and 102 _R emit middle and high tones, and vibrations due to the middle and high tones are transmitted to the rear of the listener's neck through the enclosure 101, the listener may feel uncomfortable. Therefore, the discomfort of the listener due to the middle and high tones can be eliminated by transmitting the vibration due to the middle and high tones to the listener via the neck rest buffer member 109 which attenuates by the shock absorbing materials 110 _L , 110 _C and 110 _R. As a material of the shock absorbing material, for example, a material capable of expansion and contraction such as rubber, foamed polyurethane or a spring can be used.

Embodiment 5
FIG. 9 is a left side view of the wearable speaker system 100 according to the fifth embodiment of the present invention. The difference from the previous embodiments is that the chest cushioning member 111 _L is provided on the lower surface of the first end region of the enclosure 101 via the cushioning materials 112 _L and 113 _L. Although the right side view of the wearable speaker system 100 is not shown in FIG. 9, the right side surface of the wearable speaker system 100 can also have the same structure as viewed from the left side. The chest cushioning member may be referred to as a second cushioning member.

The buffer materials 112 _L and 113 _L reduce the vibration of the enclosure 101 caused by the vibration of the diaphragm 106 b of each of the speakers 103 _L and 103 _R when the wearable speaker system 100 is in the necked state as shown in FIG. 3 And prevent the vibration of the enclosure 101 from being directly transmitted to the upper chest part of the listener. When middle to high sound is emitted from the speakers 103 _L and 103 _R , if the vibration due to the high to high sound is transmitted to the upper chest of the listener via the enclosure 101, the listener may feel uncomfortable. Therefore, by transmitting middle and high pitched sound to the listener through the chest cushioning member 111 _L , the bass is mainly transmitted to the listener through the chest cushioning member 111 _L, and the sense of discomfort of the listener can be eliminated. As a material of the shock absorbing material, for example, a material capable of expansion and contraction such as rubber, foamed polyurethane or a spring can be used.

100 ... wearable speaker system, 101 ... enclosure, 102 _L , 102 _R ... speaker unit, 103 _L , 103 _R ... speaker, 104 _L ... first opening, 104 _R ... second opening, 103 a ... speaker frame, 103 b ... Magnetic circuit (permanent magnet and voice coil), 103c: diaphragm, 105a: passive radiator frame, 105c: diaphragm, 106 _L : bass reflex duct.

Claims (1)

A neck portion having a first end and a second end;
A first speaker unit connected to the first end;
A second speaker unit connected to the second end;
A first opening that opens to the outside at the first end side and connects the hollow inside the second speaker unit to the outside;
A second opening that opens to the outside at the second end side and connects the hollow inside the first speaker unit to the outside;
With a passive radiator,
, Wearable speaker system.

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