KR101669149B1 - Bone conduction speaker system having with double flame structure of bone conduction and built-in sound-absorbing materials - Google Patents

Bone conduction speaker system having with double flame structure of bone conduction and built-in sound-absorbing materials Download PDF

Info

Publication number
KR101669149B1
KR101669149B1 KR1020150161407A KR20150161407A KR101669149B1 KR 101669149 B1 KR101669149 B1 KR 101669149B1 KR 1020150161407 A KR1020150161407 A KR 1020150161407A KR 20150161407 A KR20150161407 A KR 20150161407A KR 101669149 B1 KR101669149 B1 KR 101669149B1
Authority
KR
South Korea
Prior art keywords
frame
magnet
bone conduction
sound
built
Prior art date
Application number
KR1020150161407A
Other languages
Korean (ko)
Inventor
김성호
Original Assignee
김성호
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김성호 filed Critical 김성호
Priority to KR1020150161407A priority Critical patent/KR101669149B1/en
Application granted granted Critical
Publication of KR101669149B1 publication Critical patent/KR101669149B1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/027—Electrical or mechanical reduction of yoke vibration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
    • H04R2460/13—Hearing devices using bone conduction transducers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

The present invention relates to a bone conduction speaker system having a double frame bone conduction vibrator structure having a built-in sound absorbing material, comprising: a first frame having an open top; A second frame spaced from the outside of the first frame and surrounding the outside of the first frame; And an internal sound absorbing material interposed between the outer surface of the first frame and the inner surface of the second frame. Thus, even if the bone conduction sensitivity is increased, the leakage sound of the vibrator can not be blocked by using the built-in sound absorbing material and the buffering means .

Description

Field of the Invention [0001] The present invention relates to a bone conduction speaker system having a double-frame bone conduction oscillator structure with a built-

The present invention relates to a bone conduction speaker system having a double frame bone conduction oscillator structure with a built-in sound absorbing material.

Korean Patent No. 1537380 (registered on July 10, 2015, entitled "Bone Conduction Earphone Having Bone Conduction Speaker Module"), as shown in FIG. 1, comprises a module unit comprising a bone conduction speaker module A main body in which the module is formed on one side of the main body, and an inserting portion formed on the other side of the other side of the main body, the inserting portion and the main body being formed with through holes vertically penetrating to communicate with each other, And the sound is transmitted through the through hole to the ear through the upper part of the main body and the lower part of the insertion part, so that external sound is transmitted to the ear through the through hole.

In this conventional technique, a sound is reproduced by providing a voice coil part and a magnet part inside a first case and a second case which form an outer part, wherein a coil support part for supporting the voice coil part is formed in a bar shape, Only one side end is fixed so that a portion of the voice coil is freely oscillated so that the attenuation by the coil support is minimized so that the input signal can be precisely realized without distortion and a stable sound can be outputted even with a small vibration, Since the sound output of the bone conduction speaker is about 40 to 50 times higher than that of the general earphone due to the characteristics of the vibrator (or diaphragm structure), it is possible to output the sound of the vibration sound to the outside Could not solve the fundamental problem of being delivered to a neighbor All.

Korean Patent No. 0958486 (filed on May 5, 2010, entitled Dual Frame and Dual Magnet Structure Bone Conduction Speaker) proposed by the present applicant for solving these problems (hereinafter, As shown in FIG. 2, includes a first frame 1 having an open top; And a second frame (23) spaced apart from the outside of the first frame and surrounding the outside of the first frame, the first frame comprising: a moving coil (2) receiving an electric signal; A magnet 20 for causing an interaction between the moving coil 2 and the magnetic field due to attraction and repulsion; A first diaphragm (7) connected to the moving coil (2) and receiving the vibration of the moving coil (2); And a mastoid (6) connected to the outside of the first diaphragm (7) and transmitting mechanical vibration in contact with the user's skin, and the second frame (23) And the first frame 1 is mounted on the upper portion of the first frame 1 to receive the vibration of the first frame 1 to make the entire first frame 1 serve as a new master. (24). The dual-frame speaker has a double-magnet structure.

The present applicant's patent of the present invention has a dual magnet structure in which a magnet of a bone conduction speaker is formed of a first magnet and a second magnet and arranges the first magnet and the second magnet in a direction in which mutual attraction can act, It is possible to reduce the harmful influence of the magnetic force when the bone conduction speaker is in contact with the human body. However, when the sensitivity of bone conduction is increased, the leakage current outside the vibrator also increases proportionally Could not be completely blocked.

An object of the present invention is to provide a bone conduction speaker system including a built-in sound absorbing material and a buffer member between frames positioned close to each other.

An object of the present invention is to provide an image forming apparatus comprising: a first frame having an open top; A second frame spaced from the outside of the first frame and surrounding the outside of the first frame; Wherein the first frame comprises a moving coil to which an electric signal is applied, and a second frame which is disposed between the moving coil and the magnetic field, A first diaphragm connected to the moving coil to receive the vibration of the moving coil, a second diaphragm connected to the outer side of the first diaphragm, contacting the skin of the user to transmit mechanical vibration, Wherein the second frame is formed on the inside of the second frame to receive the vibration of the first frame by placing the first frame on top of the second frame so that the first frame serves as a new master And a second diaphragm, wherein the built-in sound absorbing material is provided on a side surface of the first and second frames facing each other, First and second mounting grooves formed at the upper and lower ends, third and fourth mounting grooves formed respectively at the upper and lower ends of the outer surface of the first frame, and first and second mounting grooves formed in the first and third mounting grooves, A second fixing member having both ends thereof inserted into the second and fourth mounting grooves, and a nonwoven fabric sound insulating membrane connecting the first fixing member and the second fixing member, wherein the double frame bone conduction Can be achieved by a bone conduction speaker system having a vibrator structure.

Preferably, it further comprises a buffer member provided between the lower surface of the first frame of the present invention and the upper surface of the second frame, wherein the buffer member comprises a first silicon plate member attached to a lower surface of the first frame, A second silicon plate member attached to an upper surface of the second frame, a connection pipe body connecting the first and second silicon plate members, and a plurality of vent holes formed in the connection pipe body, And the upper surface and the lower surface are open.

Preferably, the first and second fixing members of the present invention are silicon rods, and the surface of the non-woven sound insulating film is subjected to thermocompression bonding so that no bubbles or microbubbles are formed.

Preferably, the magnet of the present invention includes a first magnet disposed at a central portion of the first diaphragm, and a second magnet disposed apart from the first magnet and configured to surround the first magnet.

Preferably, the first magnet and the second magnet of the present invention are arranged so that the upper and lower polarities of the first magnet and the second magnet are opposite to each other so that mutual attraction acts to cancel the magnetic force.

The present invention as described above has an effect that it is not possible to block the external leakage sound of the vibrator by using the built-in sound absorbing material and the buffer means even if the bone conduction sensitivity is increased.

1 is an exploded perspective view illustrating a bone conduction earphone provided with a bone conduction speaker module according to an embodiment of the related art.
FIG. 2 is a cross-sectional view illustrating a dual-frame and dual-magnet bone-conduction speaker according to another embodiment of the present invention.
3 is a cross-sectional view of a bone conduction speaker system having a double frame bone conduction vibrator structure with a built-in sound absorbing material according to the present invention.
4 is a plan view showing a double magnet structure of a bone conduction speaker according to the present invention.
5 is an enlarged sectional view showing the built-in sound absorber of FIG.
6 is an enlarged sectional view showing the buffer member of Fig.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

3 to 6, a bone conduction speaker system 100 according to the present invention includes a first frame 1, a second frame 23, a moving coil 2, a yoke 3, a magnet 20, A coil frame 5, a mastoid 6, a first diaphragm 7, a second diaphragm 24, a built-in sound absorbing material 50 and a buffer member 70.

The bone conduction speaker system 100 includes a first frame 1 having an opened top and a second frame 23 disposed at a predetermined distance from the outside of the first frame 1 and surrounding the outside of the first frame 1, .

Inside the first frame 1, there are provided a moving coil 2 to which an electric signal is applied, and an end portion to which the moving coil 2 is inserted so that interaction between the moving coil 2 and the magnetic field, And a coil frame 5 which is coupled to the moving coil 2 and supports the moving coil 2. The magnet 20 is fixed to the yoke 3 at the opposite end of the plates 9 and 10, And a mastoid 6 which is connected to the upper side of the coil frame 5 and contacts the user's skin to transmit mechanical vibration. A first diaphragm 7 having a through hole at its center is provided at a middle portion between the coil frame 5 and the mastoid 6 and the peripheral edge of the first diaphragm 7 is fixed to the first frame 1 The moving coil 2 is suspended from the first diaphragm 7. When the AC signal is applied to the moving coil 2, the moving coil 2 reciprocates up and down with respect to the magnet, So that the mechanical vibration is transmitted to the toy 6.

The structure of the magnet 20 of the bone conduction speaker includes a first magnet 21 having a cylindrical shape and disposed at the center of the first diaphragm 7 and a second magnet 21 disposed at a predetermined interval to surround the first magnet 21 And a second magnet 22, which is a ring-shaped phase, and has a double-magnet structure. However, the shape of the first magnet 21 and the second magnet 22 is not necessarily limited to the above-described shape, and any shape can be included in the present invention as far as it can achieve a substantially double-magnet structure. Each of the magnets 21 and 22 is formed so that their mutual heights are horizontal. Accordingly, the plates 9 and 10 respectively coupled to the ends of the first magnet 21 and the second magnet 22 are arranged in the horizontal direction.

On the other hand, the present invention places the polar arrangement relationship of the magnets 20 in a direction in which the magnetic force can be canceled. That is, the first magnet 21 and the second magnet 22 are disposed in opposite polarities such that the upper and lower polarities of the first magnet 21 and the second magnet 22 are opposite to each other, If the upper side is the N pole and the lower side is the S pole, the polarity of the second magnet 22 is arranged such that the upper side is the S pole and the lower side is the N pole. In the opposite case, for example, if the upper side of the first magnet 21 is the S pole and the lower side is the N pole, the polarity of the second magnet 22 is arranged such that the upper side is the N pole and the lower side is the S pole. Therefore, the plates 9 mounted on the ends of the first magnet 21 and the second magnet 22 are also configured so that the polarities thereof are opposite to each other.

As described above, by disposing the first magnet 21 and the second magnet 22 in such a manner that the polarities of the first magnet 21 and the second magnet 22 are opposite to each other, that is, mutual attraction acts, a magnetic field shield formed around the magnet 20 is generated. Because of the magnetic shielding effect, the magnetic force is much lower. This magnetic shielding effect is also generated in the plates (9, 10) interacting with the moving coil (2)). Therefore, the lines of magnetic force generated between the plate 9 and the plate 10 with the moving coil 2 therebetween do not spread widely, and the plates 9 and 10 are gathered only in a straight line, do.

As a result, the force with which the moving coil 2 interacts with the plates 9, 10 is further improved, resulting in more accurate and distortion-free vibration in the first diaphragm 7, The sensitivity and the sound pressure level of the speaker are improved.

The first frame 1 is surrounded by a second frame 23 having a second diaphragm 24 disposed at a predetermined distance from the outside of the first frame 1 and capable of receiving AC signals from the first frame 1, The line of the second frame comes out of the second frame. Therefore, the first frame 1 and all the structures including the first frame 1 are rested on the second diaphragm 24 formed inside the second frame 23, so that the entire first frame 1 functions as a new master As a result, not only the external leakage of the sound can be blocked or reduced, but also the sound is softened even at the same sound pressure, resulting in the effect of reinforcing the low frequency band.

The built-in sound absorbing material 50 of the present invention is provided in the facing first and second frames 1 and 23. The first and second mounting grooves 51a and 51b formed at the upper and lower ends of the inner surface of the second frame 23, Third and fourth mounting grooves 51b and 52b formed at the upper and lower ends of the outer surface of the first frame 1 and both end portions of the first and second mounting grooves 51a and 51b A second fixing member 55 having both ends inserted into the inserted first fixing member 53 and the second and fourth mounting grooves 52a and 52b and the first and second fixing members 55 And a non-woven fabric soundproofing film (57).

Here, the first and second fixing members 53 and 55 are silicon rods in more detail than the electrostatic surface-treated synthetic resin rods, and the non-woven soundproofing film 57 is not formed with bubbles or micro burrs The surface is thermally pressed.

The built-in sound absorber 50 according to the present invention is provided to attenuate vibration leakage sound generated in the operation of the bone conduction speaker according to the present invention. The first and second frames 1 and 23 are formed with mounting grooves It is noted that both end portions of the first and second fixing members 53 and 55 may be adhered to the outer and inner surfaces of the first and second frames 1 and 23 and used.

The buffer member 70 is provided between the lower surface of the first frame 1 and the upper surface of the second frame 23 and includes a first silicon plate 71 attached to the lower surface of the first frame 1 A connecting tube body 75 connecting the first and second silicon plate members 73 to the second silicon plate member 73 attached to the upper surface of the second frame 23, And a plurality of vent holes 77 formed therein.

Here, although the connection tube 75 is not clearly shown in FIG. 6, it is a hollow structure having open upper and lower surfaces, and is made of a silicone material which is easy to expand and contract.

The vent hole 77 is provided for discharging air remaining in the connection tube 75 or for introducing external air when the connection tube 75 is expanded or contracted.

In addition, when the configuration of the present invention is used together with an ALC (Automatic Level Controller) circuit and a noise cancellation circuit, it is possible to block an impact sound and to remove a continuous noise of around 60dB to transmit a voice of a speaker and necessary sound. And the other party's voice or television sound can be amplified as it is, thereby realizing a smooth sound.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

1, 23: Frame 3: York
5: coil frame 6: mastoid
7, 24: diaphragm
50: built-in sound absorbing material 70: buffer member
100: Bone conduction speaker system

Claims (5)

A first frame having an open top;
A second frame spaced from the outside of the first frame and surrounding the outside of the first frame;
And a built-in sound absorber interposed between an outer surface of the first frame and an inner surface of the second frame,
A first diaphragm connected to the moving coil and receiving a vibration of the moving coil, and a second diaphragm connected to the moving coil and receiving the vibration of the moving coil, wherein the first frame includes a moving coil to which an electric signal is applied, And a mastoid which is connected to the outside of the first diaphragm and transmits mechanical vibration in contact with the user's skin,
The second frame is formed inside the second frame to receive the vibration of the first frame by seating the first frame on the upper part of the second frame so that the whole first frame acts as a new master, Including,
The built-in sound absorbing material is provided on the side surfaces of the first and second frames facing each other. The built-in sound absorbing material includes first and second mounting grooves formed at upper and lower ends of the inner surface of the second frame, A first fixing member having both ends thereof inserted into the first and third mounting grooves, a second fixing member having both ends thereof inserted into the second and fourth mounting grooves, 1 and a second fixing member, wherein the non-woven sound-insulating membrane comprises:
Further comprising a buffer member provided between a lower surface of the first frame and an upper surface of the second frame,
The buffer member includes a first silicon plate member attached to a lower surface of the first frame, a second silicon plate member attached to an upper surface of the second frame, a connection pipe body connecting the first and second silicon plate members, And a plurality of vent holes formed in the connection tube body,
Wherein the connection tube body is a hollow silicone material having an open upper surface and a lower surface. The bone conduction speaker system according to claim 1,
delete The method according to claim 1,
Wherein the first and second fixing members are silicon rods and the surface of the nonwoven sound insulation membrane is thermally pressed so that no bubbles or microbubbles are formed. Bone conduction speaker system.
The method according to claim 1,
Wherein the magnet includes a first magnet disposed at a central portion of the first diaphragm and a second magnet spaced apart from the first magnet and configured to surround the first magnet. Bone Conduction Speaker System with an Oscillator Structure.
5. The method of claim 4,
Wherein the first magnet and the second magnet are arranged such that the polarities of the first magnet and the second magnet are opposite to each other so that the magnetic force is canceled by mutual attraction force. The bone conduction speaker system .
KR1020150161407A 2015-11-17 2015-11-17 Bone conduction speaker system having with double flame structure of bone conduction and built-in sound-absorbing materials KR101669149B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150161407A KR101669149B1 (en) 2015-11-17 2015-11-17 Bone conduction speaker system having with double flame structure of bone conduction and built-in sound-absorbing materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150161407A KR101669149B1 (en) 2015-11-17 2015-11-17 Bone conduction speaker system having with double flame structure of bone conduction and built-in sound-absorbing materials

Publications (1)

Publication Number Publication Date
KR101669149B1 true KR101669149B1 (en) 2016-10-25

Family

ID=57446441

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150161407A KR101669149B1 (en) 2015-11-17 2015-11-17 Bone conduction speaker system having with double flame structure of bone conduction and built-in sound-absorbing materials

Country Status (1)

Country Link
KR (1) KR101669149B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101915077B1 (en) * 2017-10-27 2018-11-05 주식회사 힐링비트 A vibrator for body sense based on a acoustic sound
WO2019082167A1 (en) * 2017-10-27 2019-05-02 Cochlear Limited Transducer with dual suspension
KR102241184B1 (en) 2019-12-16 2021-04-16 (주)파트론 Vibration generator
KR102241191B1 (en) 2019-12-16 2021-04-16 (주)파트론 Vibration generator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100769290B1 (en) * 2006-09-22 2007-10-24 최성식 Vibration speaker and headset with the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100769290B1 (en) * 2006-09-22 2007-10-24 최성식 Vibration speaker and headset with the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101915077B1 (en) * 2017-10-27 2018-11-05 주식회사 힐링비트 A vibrator for body sense based on a acoustic sound
WO2019082167A1 (en) * 2017-10-27 2019-05-02 Cochlear Limited Transducer with dual suspension
US11765529B2 (en) 2017-10-27 2023-09-19 Cochlear Limited Transducer with dual suspension
KR102241184B1 (en) 2019-12-16 2021-04-16 (주)파트론 Vibration generator
KR102241191B1 (en) 2019-12-16 2021-04-16 (주)파트론 Vibration generator

Similar Documents

Publication Publication Date Title
CN110603816B (en) Speaker unit having electromagnetic speaker and micro speaker
JP6136016B2 (en) earphone
KR101669149B1 (en) Bone conduction speaker system having with double flame structure of bone conduction and built-in sound-absorbing materials
EP3637797B1 (en) Sound producing device
JP5826946B2 (en) Earphone device
KR101769470B1 (en) Universal speaker
KR101756653B1 (en) Noise shielding earset with acoustic filter
CN102497611B (en) Bone conduction speaker driver with reduced volume
JP2016524390A (en) Double diaphragm type speaker module
WO2022193426A1 (en) Bone conduction sounding apparatus and wearable device
JP6951491B2 (en) Bone conduction speaker
KR20220047994A (en) smart head mounted device
CN105120409A (en) Loudspeaker
KR101389691B1 (en) Bone conduction speaker unit for reducing noise by magnet fluid
CN103781002B (en) A kind of many vibrating membrane loudspeakers
KR100932755B1 (en) Multifunction speaker
KR20170142571A (en) nonflammables speaker of piezoelectricity type
KR101148055B1 (en) Sound transducer having spring member which can conduct electiric signals and be used as a suspension
KR101115669B1 (en) A vibration speaker
KR100987464B1 (en) Directivity type speaker
KR101634755B1 (en) a earphone for prevention of hearing loss
KR20010008806A (en) Contact-type Sounder
KR100819940B1 (en) Bone conductive ear phone
KR100354909B1 (en) Subminiature acoustic oscillator
JP5825522B2 (en) Speaker device

Legal Events

Date Code Title Description
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20191007

Year of fee payment: 4