KR20160135473A

KR20160135473A - Earset

Info

Publication number: KR20160135473A
Application number: KR1020150068799A
Authority: KR
Inventors: 신두식
Original assignee: 해보라 주식회사
Priority date: 2015-05-18
Filing date: 2015-05-18
Publication date: 2016-11-28
Also published as: WO2016186344A1; KR101694706B1

Abstract

The present invention relates to an earset which can prevent reverberating and howling phenomena from occurring when a sound output via a speaker is introduced into a microphone. The earset comprises: a case which forms an exterior, and includes a speaker accommodation groove adapted to accommodate a bone conduction speaker for output of sound vibration to a cranial bone of a user; an ear pad which is mounted on an end of the case, forms a connection hole connected to an external auditory meatus of the user, and is attached to or detached from an ear of the user; and a soundproof housing which is accommodated in the case to be spaced apart from the speaker accommodation groove, and includes a microphone input hole adapted to transfer a sound, transferred from the ear of the user via the connection hole of the ear pad, to a microphone and a microphone accommodation groove adapted to accommodate the microphone.

Description

Ear set {EARSET}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earset, and more particularly, to an earset having a bone conduction speaker.

In general, an ear-set is a voice transmission / reception device that combines an earphone (speaker) and a microphone (microphone), and is connected to an electronic device such as an MP3 player or a mobile phone by wire or wireless. Sounds such as sound and voice are transmitted and received through the user's ear and mouth.

These earsets are largely classified into a separable type in which a speaker for transmitting sound is inserted into the user's ear and a microphone is located in a position near the user's mouth, and an integral type in which the speaker and the microphone are both inserted into the ear.

In the case of the removable earset, the position of the speaker and the microphone are made to be distant from each other. While it is convenient to listen to music and make conversation while freely opening both hands, in a place where noise is high or when the user moves the body, There is a problem in that sound can not be transmitted accurately because the microphone is loosened or the position of the microphone is shaken.

On the other hand, in the case of the integral type earset, the ear pad inserted in the ear canal is attached, and the speaker and the microphone are inserted into the ear, so that the sound can be accurately transmitted even in a place where noise is higher than the separate type earset.

As a prior art of this type of integrated earset, an earset disclosed in Korean Patent Registration No. 10-1341308 filed by the applicant on March 29, 2012 and registered as December 12, 2013 is disclosed.

In this conventional earset, the speaker and the microphone are arranged in parallel to the axis of the ear pad. In addition, in the conventional earset, the front housing coupled to the front end of the rear housing, in which the speaker and the microphone are housed, has one speaker output hole for outputting sound generated from the speaker, It consists of a microphone input hole and a pair of back holes. The speaker output hole, the microphone input hole, and the back hole are formed to be separated from each other independently.

However, in the conventional earset, the speaker and the microphone are disposed close to the same housing or the proximity housing, and echo phenomenon and howling phenomenon occur. In addition, the conventional earset is limited in the size of the microphone and the speaker, the degree of freedom of the product design is limited, the volume of the microphone is reduced, and it is difficult to transmit clear voice to the other party. There is a difficult problem.

Japanese Patent Application Laid-Open No. 10-1341308 (Title: Soundproof housing for earpiece and wired and wireless earset with earphone, publication date: Dec. 12, 2013)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a speaker apparatus and a microphone which can prevent echo phenomenon and howling phenomenon, It is an object of the present invention to provide an earset capable of enhancing the microphone sensitivity by increasing the incoming volume and enabling high quality music listening.

An object of the present invention is to provide a case having a speaker receiving groove formed therein for receiving a bone conduction speaker for outputting sound vibrations to a user's head bone, An ear pad attached to one end of the case and forming a communication hole communicating with an external ear canal of the user and being attached to and detached from a user's ear; And a soundproof housing accommodated in the case so as to be spaced apart from the speaker receiving groove and having a microphone input hole for transmitting the sound transmitted from the user's ear to the communication hole of the ear pad and a microphone receiving groove for receiving the microphone , Which can be achieved by earset.

Here, one or more backhaul holes may be provided in the soundproof housing so as to communicate with the communication holes of the ear pad, and may transmit a part of sound transmitted from the user's ear to the communication hole of the ear pad to the backside of the microphone housed in the microphone storage groove .

The soundproof housing may be detachably coupled to the front housing and the rear housing, the microphone housing may include the microphone input hole, and the rear housing may include the microphone housing groove.

Wherein the backhaul has at least one first backhaul formed in the front housing so as to be spaced apart from the microphone input hole; And at least one second backhaul partially recessed in the inner circumference of the microphone receiving groove to communicate with the first backhaul.

The case includes a housing case in which the soundproof housing is housed and a front case having protrusions to which the ear pads are coupled; An intermediate case coupled to the front case so as to close the housing receiving part of the front case and having the speaker receiving groove formed therein; And a rear case disposed to face the front case with the intermediate case interposed therebetween.

According to the present invention, a bone conduction speaker is employed to independently arrange a speaker and a microphone in a soundproof housing accommodated in a case and a case, respectively, thereby preventing an echo phenomenon and a hauling phenomenon due to the inflow of sound output from the speaker, It is possible to freely design the product regardless of the size of the microphone, increase the volume of the microphones to increase the microphone sensitivity, and enable high-quality music listening.

1 is a perspective view of an earphone according to a first embodiment of the present invention,
Fig. 2 is a front view of Fig. 1,
FIG. 3 is a longitudinal sectional view of FIG. 2,
Fig. 4 is an exploded perspective view of Fig. 1,
5 is a perspective view of an earphone according to a second embodiment of the present invention,
Fig. 6 is a front view of Fig. 5,
Fig. 7 is a longitudinal sectional view of Fig. 6,
8 is an exploded perspective view of FIG.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Prior to the description, the earpiece in the following description refers to a mechanism in which a speaker and a microphone are integrally formed and inserted into the ear, and includes an earphone for listening to music, a streaming ear microphone, a Bluetooth headset, a wifi headset, , a binary CDMA headset, a headset for voice search or voice control.

In addition, in the various embodiments, components having the same configuration are represented by the same reference symbols in the first embodiment. In the other embodiments, only the configurations different from those of the first embodiment will be described.

1 to 6 show an earset according to a first embodiment of the present invention. As shown in these drawings, an earset 1 according to a first embodiment of the present invention includes a case 10, an ear pad 50, and a soundproof housing 60. [

The case 10 forms the overall appearance of the earset 1. The case 10 has a housing receiving portion 35 for receiving the soundproof housing 60 therein and a protrusion 45 to which the ear pad 50 is coupled. The case 10 includes a back case 11, an intermediate case 15, and a front case 31.

The rear case 11 is disposed to face the front case 31 with the intermediate case 15 interposed therebetween and forms the outer appearance of the rear of the ear set 1 and is coupled to the rear end of the intermediate case 15 .

A cover 17 is formed at one side of the intermediate case 15 to seal a housing accommodating portion 35 of a front case 31 to be described later and a speaker accommodating groove 19 is recessed at the other side of the intermediate case 15 Respectively. The intermediate case 15 is coupled to the rear end of the front case 31 to seal the housing receiving portion 35 of the front case 31.

On the other hand, a bone conduction speaker 25 for outputting sound vibrations to a user's head bone is housed in the speaker receiving groove 19. The bone conduction speaker 25 is housed in the speaker receiving groove 19 so as to be able to contact the user's head bone. Thus, the user can listen to the sound transmitted from the external device through the bone conduction speaker 25 without causing harm to the surrounding people.

On the other hand, the back case 11 and the intermediate case 15 are fitted together while maintaining airtightness. Although not shown, a fitting protrusion is protruded from the outer periphery of the end portion of the back case 11 toward the intermediate case 15 and an inner circumference of the end of the intermediate case 15 toward the back case 11 is provided with a back case 11 The back case 11 and the intermediate case 15 can be coupled to each other.

The front case 31 is inserted into an external ear canal of the user and is joined with the intermediate case 15 and the back case 11 to form the entire case 10.

The front case 31 has a generally truncated conical shape and includes a front case body 33 and a rear case body 33 which are detachably coupled to the intermediate case 15 and a pair of front case bodies 33 and 33 And a protrusion 45 protruding from the base portion at a predetermined length.

A housing receiving portion 35 is formed inside the front case body 33 to receive the soundproofing housing 60 therein. A partition wall 37 for shielding the inside of the front case 31 is formed on the inside of the front case body 33. The partition wall 37 is provided with a communication hole 39 for a microphone input hole communicating with a microphone input hole 65 of a soundproof housing 60 to be described later and a communication hole 39 for communicating with a first backhaul 67 of a soundproof housing 60 A pair of back-hole communication holes 41 are formed. Here, the front case body 33 and the protrusion 45 may be integrally formed to have a single large hole.

On the other hand, the intermediate case 15 and the front case 31 are tightly fitted together. Although not shown, a fitting jaw is protruded on the outer periphery of the end portion of the intermediate case 15 facing the front case 31, and an intermediate case 15 (not shown) is formed on the inner circumference of the end portion of the front case 31 toward the middle case 15. [ The intermediate case 15 and the front case 31 can be coupled to each other.

The ear pad 50 is attached to the protruding portion 45 of the front case 31 and forms a communication hole 53 for the ear pad communicating with the external ear canal of the user so that the front case 31 is easily inserted into the ear . The ear pad 50 is made of any one of silicone, synthetic resin, and rubber, which can be elastically deformed so as to be stretchable and close to the user's external ear canal.

The ear pad 50 includes an ear pad body 51 and a plurality of treads 55.

The pad body 51 has a semicircular cross-sectional shape, for example, a truncated cone whose distal end is partly cut to facilitate insertion into the external ear canal. The pad body 51 is coupled to the projection 45 of the front case 31 and the communication hole 39 for the microphone input hole of the front case 31 and the pair of the back A communication hole 53 for an ear pad communicating with the communication hole 41 for the hole is formed. The communication hole 53 for the ear pad transmits the sound transmitted from the user's ear to the microphone 75. Here, the ear pad body 51 is shown as having a semicircular cross-sectional shape, but is not limited thereto, and may have a truncated elliptical cross-sectional shape.

The plurality of treads 55 have a ring shape and are formed at intervals on the outer circumferential surface of the opposite side end portion of the ear pad body 51. The plurality of treads 55 have inclined portions 57 inclined downward toward the inserting direction of the ear canal with respect to the axis of the communicating hole 53 for the ear pad of the ear pad body 51. Thus, the tread 55 has a triangular cross-sectional shape as a whole. As a result, the insertion of the ear pad 50 into the ear canal is smoothly performed, and the movement of the ear pad 50 is suppressed by the friction between the tread 55 and the inner wall of the ear canal, thereby providing a pleasant and stable wearing feeling.

The plurality of treads 55 have a cross-sectional shape gradually increasing in outer diameter toward the case 10. That is, the plurality of treads 55 have a cross-sectional shape that gradually increases in the direction opposite to insertion into the ear canal. Thus, when the earpiece 1 is attached to the ear canal, the adhesion between the tread 55 and the inner ear canal of the wearer is further improved, so that the external noise can be prevented from flowing into the ear canal, It is possible to wear the ear pad 50 irrespective of whether or not the ear pad 50 is worn.

Here, the cross-sectional shape of the tread 55 may have various cross-sectional shapes other than a triangle. The plurality of treads 55 may have the same outer diameter.

On the other hand, the soundproof housing 60 is received in the case 10, and transmits the sound transmitted from the user's ear to the ear pad 50 to the microphone 75. The soundproof housing 60 blocks the introduction of external noise through the front case 31, the intermediate case 15 or the back case 11 and reduces the occurrence of vibration noise caused by the microphone 75, .

The soundproof housing 60 is accommodated in the case 10 in such a manner that the front housing 61 facing the ear pad 50 and the rear housing 71 facing the rear case 11 are coupled. For example, in the housing accommodating portion 35 of the front case 31.

The front housing 61 may be received in the housing receiving portion 35 of the front case 31 and protrude toward the inside of the protrusion 45 of the front case 31. For example, the front housing 61 is formed with an insertion protrusion 63 corresponding to the inner cross-sectional shape of the protrusion 45 of the front case 31. The insertion protrusion 63 is easily inserted into the protrusion 45 of the front case 31 and is tightly coupled with the front case 31. The insertion protrusion 63 is in close contact with the front case 31, Can be prevented. The free end of the insertion protrusion 63 is in close contact with the partition wall 37 of the front case 31,

The front housing 61 is formed with a microphone input hole 65 through which the sound transmitted from the user's ear to the ear pad communicating hole 53 of the ear pad 50 is transmitted to the microphone 75. The microphone input hole 65 communicates with the communication hole 39 for the microphone input hole of the partition wall 37 and has a shape in which the cross-sectional area gradually increases toward the rear housing 71.

The front housing 61 is provided with a pair of first backhaul 67 for transmitting a part of the sound transmitted from the user's ear to the communication hole 53 for the ear pad of the ear pad 50 to the back surface of the microphone 75 Is formed. The pair of first backhaul 67 is spaced apart from the microphone input hole 65 and communicates with a pair of backhole communication holes 41 of the partition wall 37. Here, the first backhaul 67 may have the same diameter as the communication hole 41 for the backhaul.

The rear housing 71 is coupled to one end of the front housing 61 to block the rear of the front housing 61 and is housed in the housing receiving portion 35 of the front case 31.

The rear housing 71 is provided with a microphone receiving groove 73 communicating with the microphone input hole 65 and receiving the microphone 75 and a part of the sound transmitted from the user's ear to the ear pad communicating hole 53, And a pair of second backhaul 77 which is transmitted to the back surface of the microphone 75 housed in the receiving groove 73.

The microphone housing groove 73 is formed at one side of the rear housing 71 facing the front housing 61. The microphone housing groove 73 has a diameter corresponding to the diameter of the microphone 75 and is recessed to a predetermined depth have.

The pair of second backhaul 77 is formed to be recessed in the inner periphery of the microphone receiving groove 73. The second backhaul 77 communicates with the bottom of the microphone receiving groove 73 so as to transmit the sound flowing into the first backhaul 67 to the back surface of the microphone 75 housed in the microphone receiving groove 73. Although the first backhaul 67 and the second backhaul 77 are shown as being provided as a pair in the present embodiment, the first backhaul 67 and the second backhaul 77 are not limited thereto, More than one can be provided. In addition, each of the backholes 67 and 77 may have various cross-sectional shapes instead of a circular cross-sectional shape.

The soundproof housing 60 is preferably made of a sound absorbing material, plastic, rubber, silicon, or the like so that the soundproof housing 60 can be easily assembled, the noise from the outside is blocked, and sound signals transmitted and received from the inside are efficiently transmitted to the user's external ear canal.

The bone conduction speaker 25 is housed in the speaker receiving groove 19 of the intermediate case 15 and the microphone 75 housed in the soundproof housing 60 is housed in the housing receiving portion 35 of the front case 31. [ The earphone 1 according to the present invention includes the bone conduction speaker 25 and the microphone 75 separated from each other without being housed in the same housing and housed separately.

Here, reference numeral 85 is a microphone cable hole through which the microphone cable 87 passes. The microphone cable hole 85 is formed in the intermediate housing 15 and the rear housing 71 so as to be connected to a microphone cable 87 connected to the microphone 75 housed in the microphone housing groove 73 of the rear housing 71 ). The microphone cable hole 85 is sealed to the intermediate case 15 and the rear housing 71 with an adhesive or the like to prevent external noise from being introduced. Reference numeral 83 denotes a speaker cable connected to the bone conduction speaker 25. Reference numeral 89 denotes a cable in which a speaker cable 83 and a microphone cable 87 are integrally provided.

The earpiece 1 according to the first embodiment of the present invention has the pad 50 connected to the protruding portion 45 of the front case 31 of the case 10, And a soundproof housing 60 is accommodated inside.

A sound insulation housing 60 for housing the microphone 75 is accommodated in the other side of the intermediate case 15 so that the bone conduction speaker 25 is exposed at one side of the intermediate case 15.

One microphone input hole 65 and a first backhole 67 are formed in the front housing 61 of the soundproof housing 60 and the microphone housing groove 73 is formed in the rear housing 71, And the second backhaul 77 is formed along the inner periphery of the receiving groove 73.

Thus, the acoustic signal provided from the external device is converted through the bone conduction speaker 25 housed in the speaker receiving groove 19 of the intermediate case 15, and is output to the user's head bone as sound vibrations.

The sound transmitted from the user's ear is transmitted to the microphone 75 through the communication hole 39 for the microphone input hole and the microphone input hole 65 through the communication hole 53 for the ear pad of the ear pad 50 Simultaneously, the sound is transmitted to the back surface of the microphone 75 via the back hole communication hole 41, the first backhaul 67 and the second backhaul 77, and the microphone 75 is converted into an electrical signal and output to the external device .

As described above, the earphone 1 according to the first embodiment of the present invention employs the bone conduction speaker 25 so that the speaker 25 and the microphone 75 are not housed in the same housing, The soundproof housing 60 is housed in the housing housing space of the front case 31 spaced apart from the speaker housing groove 19 after the microphone 75 is housed in the soundproof housing 60, And the bone conduction speaker 25 is accommodated in the speaker receiving groove 19 of the intermediate case 15 so that the user of the earset 1 is output from the bone conduction speaker 25 when talking with the other party It is possible to prevent echo phenomenon and howling phenomenon that occurs when sound is input to the microphone 75. In addition, the earset 1 can be freely designed regardless of the size of the speaker 25 and the microphone 75, and the volume of sound introduced into the microphone 75 can be increased to improve the microphone sensitivity. In addition, the size of the bone conduction speaker 25 can be increased, and high quality music can be heard.

7 to 12 show an earset according to a second embodiment of the present invention. As shown in these drawings, the earphone 1 'according to the second embodiment of the present invention is different from the above-described first embodiment in that a battery 10 is provided between the middle case 15 and the back case 11 of the case 10, Lt; RTI ID = 0.0 > 91, < / RTI >

The battery 91 serves to supply power to the microphone 75.

A printed circuit board 93 for controlling the operation of the bone conduction speaker 25 and the microphone 75 is provided on the back surface of the battery 91. A bone conduction speaker 25 is attached to one side of the back case 11, And an operation switch 95 for operating the operation of the microphone 75 are provided. The back case 11 may be provided with a charging terminal (not shown) for supplying power to the battery 91.

According to this configuration, the earset 1 'according to the second embodiment of the present invention is also configured so that, as in the above-described first embodiment, when the user of the earset 1' It is possible to design the earset 1 'freely regardless of the size of the speaker 25 and the microphone 75 and to prevent the echo phenomenon and the hauling phenomenon in the microphone 75 caused by the microphone 75 It is possible to improve the microphone sensitivity and to listen to high quality music.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

1,1 ': Earset 10: Case
11: Rear case 15: Middle case
19: Speaker housing groove 25: Bone conduction speaker
31: front case 33: front case body
35: housing receiving portion 39: communication hole for microphone input hole
41: communication hole for backhole 45: protrusion
50: Ear pad 51: Ear pad body
53: communication hole for ear pad 55: tread
60: soundproof housing 61: front housing
65: microphone input hole 67: first backhaul
71: Rear housing 73: Microphone housing groove
75: Microphone 77: Second backhaul

Claims

A case having a speaker receiving groove formed therein for receiving a bone conduction speaker for outputting sound vibrations to a user's head bone;
An ear pad attached to one end of the case and forming a communication hole communicating with an external ear canal of the user and being attached to and detached from a user's ear; And
And a soundproof housing accommodated in the case so as to be spaced apart from the speaker receiving groove and having a microphone input hole for transmitting the sound transmitted from the user's ear to the communication hole of the ear pad and a microphone receiving groove for receiving the microphone, , Earset.

The method according to claim 1,
And at least one backhaul provided in the soundproof housing so as to communicate with the communication hole of the ear pad to transmit part of the sound transmitted from the user's ear to the communication hole of the ear pad to the backside of the microphone housed in the microphone storage groove Earset.

3. The method of claim 2,
The soundproof housing is detachably coupled to the front housing and the rear housing,
Wherein the microphone housing is formed with the microphone input hole in the front housing, and the microphone housing groove is formed in the rear housing.

The method of claim 3,
The back-
At least one first backhaul formed in the front housing to be spaced apart from the microphone input hole; And
And one or more second backhaul portions partially recessed in the inner circumference of the microphone receiving groove to communicate with the first backhaul.

The method according to claim 1,
In this case,
A housing case housing the soundproof housing, and a protrusion coupled to the ear pad;
An intermediate case coupled to the front case so as to close the housing receiving part of the front case and having the speaker receiving groove formed therein; And
And a rear case disposed opposite to the front case with the intermediate case interposed therebetween.