WO2005086522A1 - 骨伝導デバイス - Google Patents
骨伝導デバイス Download PDFInfo
- Publication number
- WO2005086522A1 WO2005086522A1 PCT/JP2005/003719 JP2005003719W WO2005086522A1 WO 2005086522 A1 WO2005086522 A1 WO 2005086522A1 JP 2005003719 W JP2005003719 W JP 2005003719W WO 2005086522 A1 WO2005086522 A1 WO 2005086522A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- yoke
- bone conduction
- base
- conduction device
- magnet
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
-
- 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
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
-
- 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
-
- 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
Definitions
- the present invention relates to a bone conduction device, and more particularly, to a speaker or microphone of a type that transmits an audio signal as bone conduction sound, and relates to a high-performance bone conduction device that is thin, leaks little, and has little magnetic flux. It is. Since the bone conduction microphone has substantially the same configuration as the bone conduction speaker, the content described below as the bone conduction speaker also applies to the bone conduction microphone as it is. Background art
- a lower yoke 21 having a center magnetic pole 22 around which a voice coil 23 is wound is provided, and the lower yoke 21 is extended in four directions. Magnets are placed on two opposing parts of the extension, and the upper yoke fixing part 25 is erected on the other two parts, and the diaphragm 27 of the upper yoke 26 is fixed on the upper yoke fixing part 25.
- Japanese Patent No. 2967777 Japanese Patent No. 2967777
- the upper yoke 26 is composed of a thick plate yoke 28 that is a part of a magnetic circuit, and a flexible thin diaphragm 27.
- the diaphragm 27 It is required to take as large an area as possible. In order to meet this demand without increasing the overall size, the plate yoke 28 must be formed small and narrow.
- the plate 30 is fixed to the inner surface of the case 29 by screwing a screw 30 into a screw hole 31 provided in the plate yoke 28.
- fine iron powder is likely to be generated during the screwing.
- the fine iron powder may enter the gap formed between the upper yoke 26 and the upper surface of the central magnetic pole 22, and may cause abnormal noise.
- the thickness of the case 29 must be sufficiently thick for screwing, the entire thickness of the case 29 cannot be suppressed, and the demand for a thinner case 29 must be met. Can not.
- Patent Document 1 Japanese Patent No. 2967777
- the present invention has been made to solve the problems of the conventional osteoconductive device as described above, and has a simple configuration, can be formed to be thin, has a small force to leak magnetic flux, and has a high performance. It is an object to provide a bone conduction device.
- the present invention includes a base yoke that carries a voice coil and a magnet, and a flat front yoke that is arranged so as to maintain a required gap between the base yoke and the upper surface of the magnetic pole.
- a bone conduction device which is achieved by an elastic body that is provided on a peripheral portion of the base yoke and receives the front yoke.
- the base yoke has a circular base, and the elastic body is a pair of arc-shaped bodies along the base.
- the present invention also includes a base yoke for carrying a voice coil and a magnet, and a flat front yoke disposed so as to maintain a necessary gap between a magnetic pole upper surface of the base yoke and the base yoke.
- a bone conduction device characterized in that the retention of the bone conduction device is achieved by a damper attached to the base yoke and having a peripheral edge supported by an inner surface of the case.
- the front yoke is fixed to an inner surface of the case without using a screw, and the front yoke is fitted in a yoke accommodating portion provided on the inner surface of the case.
- an elastic body or a damper is attached to a base yoke that carries a voice coil and a magnet, and the gap between the upper surface of the magnetic pole of the base work and the front yoke is attached to the elastic body or the damper. It is not necessary to provide a thick part and a thin part in the front yoke because of the structure that retains the front yoke. Therefore, it is possible to prevent a magnetic leak generated due to the formation of the thick part and the thin part from adversely affecting a hearing aid or the like using this bone conduction device. [0011] Furthermore, the whole structure can be simplified, formed thin and compact, and can be supplied at a relatively low cost. Since the assembling force can be assembled without using a screw, there is an effect that the performance can be maintained for a long period of time without generating dust such as fine iron powder.
- 1 to 4 show a first embodiment of the present invention. It is an external magnet type in which a magnet 4 is arranged outside the voice coil 3, and includes a base yoke 1 having a central magnetic pole 2, a voice coil 3 surrounding the central magnetic pole 2, and a voice coil 3 interposed therebetween. It comprises a pair of magnets 4 arranged on both sides, and a front yoke 5 arranged on the base yoke 1 via an elastic body 6.
- the base 7 of the base yoke 1 is usually circular.
- the elastic body 6 is made of an elastic material such as rubber or plastic, and is usually formed as an arc along the periphery of the base 7, and is disposed between the magnets 4 fixed on the base 7.
- an insertion groove 8 is formed in the inner peripheral surface of the elastic body 6, the peripheral edge of the base 7 is fitted therein, and if necessary, adhered. It is preferable to use a fixing method.
- the front yoke 5 disposed on the elastic bodies 6 is usually the same diameter or substantially the same diameter as the base 7 of the base yoke 1. Therefore, the elastic bodies 6, 6 slightly protrude from the front yoke 5. Force to maintain an appropriate gap between the upper surface of the center pole 2 of the base yoke 1 and the front yoke 5 This gap is maintained by the base yoke 1 and the front yoke 5 being elastic members 6, 6 as described above. It is achieved by being assembled in.
- FIG. 4 shows an example of assembling the bone conduction device into the case 10.
- the case 10 is of a halved type, and a thin yoke accommodating portion 11 for accommodating the front yoke 5 is formed in a half portion 10a.
- the bone conduction device is usually loaded into one half 10a of the case 10 by putting the front yoke 5 in the yoke storage part 11, and then the other half 10b is covered and the elastic members 6, 6 are strongly sandwiched. It is retained by being attached.
- the front yoke 5 and the yoke storage portion 11 are bonded as necessary, and the elastic body 6 is brought into contact with the first half 10a and the other half 10b. Glue the contact surfaces.
- the bonding area of each bonding portion can be widened, it is possible to reliably fix the bonding portion with a sufficient bonding force.
- the bone conduction device has a simple structure as described above, which operates according to the same principle as the conventional one, and the vibration of the front yoke 5 is supported by the elastic body 6, so that the front There is no need to provide the yoke 5 with a thin portion having flexibility. Therefore, magnetic leakage is reduced, and there is no adverse magnetic effect when used for hearing aids.
- the fact that the leakage magnetic flux is small means that the magnetic flux can be used efficiently and effectively.Therefore, in the case of the present invention, the magnet 4 needs to be small and the cost can be reduced accordingly. it can.
- the support of the base yoke 1 in other words, the maintenance of the gap between the upper surface of the central magnetic pole 2 and the front yoke 5 is replaced by a damper instead of the elastic body 6 in the above embodiment. This is done at par 13.
- the damper 13 is made of paper, plastic, or a thin metal plate, and can hold an appropriate bending.
- the center of the damper 13 is fixed to the upper or lower surface of the base 7 of the base yoke 1 (fixed to the upper surface in FIG. 5), and the peripheral edge is fixed to the inner peripheral surface of the case 10.
- the fixing of the peripheral portion can be performed by clamping the peripheral portion at the joining portion between the half portion 10a and the other half portion 10b of the case 10 (see FIG. 5).
- the present invention can also be applied to a bone conduction device using an inner magnet type electromagnet in which the magnet 4 is arranged inside the voice coil 3.
- FIG. 1 is a plan view of one embodiment of a bone conduction device according to the present invention (a front yoke is removed).
- FIG. 2 is an end view taken along the line AA in FIG. 1 (a front yoke is attached).
- FIG. 3 is an end view taken along the line BB in FIG. 1 (a front yoke is attached).
- FIG. 4 is a diagram showing a case where the osteoconductive device according to the embodiment of the present invention is assembled into a case.
- Fig. 5 is a state view of a bone conduction device according to another embodiment of the present invention incorporated in a case.
- FIG. 6 is a longitudinal sectional view showing a configuration example of a conventional bone conduction device.
- FIG. 7 is a diagram showing an upper yoke in a configuration example of a conventional bone conduction device.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005800071928A CN1930907B (zh) | 2004-03-05 | 2005-03-04 | 骨传导装置 |
| JP2006515315A JP4163231B2 (ja) | 2004-03-05 | 2005-03-04 | 骨伝導デバイス |
| CA002558300A CA2558300A1 (en) | 2004-03-05 | 2005-03-04 | Bone conduction device |
| US10/597,825 US20070160238A1 (en) | 2004-03-05 | 2005-03-04 | Bone conduction device |
| AU2005219247A AU2005219247A1 (en) | 2004-03-05 | 2005-03-04 | Bone conduction device |
| EP05719991A EP1722590A1 (en) | 2004-03-05 | 2005-03-04 | Bone conduction device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-062034 | 2004-03-05 | ||
| JP2004062034 | 2004-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005086522A1 true WO2005086522A1 (ja) | 2005-09-15 |
Family
ID=34918097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/003719 Ceased WO2005086522A1 (ja) | 2004-03-05 | 2005-03-04 | 骨伝導デバイス |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20070160238A1 (ja) |
| EP (1) | EP1722590A1 (ja) |
| JP (1) | JP4163231B2 (ja) |
| KR (1) | KR20070015126A (ja) |
| CN (1) | CN1930907B (ja) |
| AU (1) | AU2005219247A1 (ja) |
| CA (1) | CA2558300A1 (ja) |
| TW (1) | TW200534733A (ja) |
| WO (1) | WO2005086522A1 (ja) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010510750A (ja) * | 2006-11-28 | 2010-04-02 | ソン・シク・チェ | 振動スピーカー及びそれに使用されるフェイスプレート及びこれを具備した携帯端末機 |
| CN103281647A (zh) * | 2006-01-12 | 2013-09-04 | 索尼株式会社 | 耳机装置 |
| WO2015125566A1 (ja) * | 2014-02-20 | 2015-08-27 | 株式会社テムコジャパン | 骨伝導スピーカユニット |
| WO2015198683A1 (ja) * | 2014-06-26 | 2015-12-30 | 株式会社テムコジャパン | 骨伝導スピーカ |
| JP2017076919A (ja) * | 2015-10-16 | 2017-04-20 | 株式会社ファインウェル | 携帯電話、イヤホンおよび電磁型振動ユニット |
| US10779075B2 (en) | 2010-12-27 | 2020-09-15 | Finewell Co., Ltd. | Incoming/outgoing-talk unit and incoming-talk unit |
| US10778824B2 (en) | 2016-01-19 | 2020-09-15 | Finewell Co., Ltd. | Pen-type handset |
| US10778823B2 (en) | 2012-01-20 | 2020-09-15 | Finewell Co., Ltd. | Mobile telephone and cartilage-conduction vibration source device |
| US10795321B2 (en) | 2015-09-16 | 2020-10-06 | Finewell Co., Ltd. | Wrist watch with hearing function |
| US10834506B2 (en) | 2012-06-29 | 2020-11-10 | Finewell Co., Ltd. | Stereo earphone |
| US10848607B2 (en) | 2014-12-18 | 2020-11-24 | Finewell Co., Ltd. | Cycling hearing device and bicycle system |
| CN112153539A (zh) * | 2018-09-18 | 2020-12-29 | 徐发喜 | 一种骨传导扬声器 |
| US10967521B2 (en) | 2015-07-15 | 2021-04-06 | Finewell Co., Ltd. | Robot and robot system |
| US11526033B2 (en) | 2018-09-28 | 2022-12-13 | Finewell Co., Ltd. | Hearing device |
| WO2024210179A1 (ja) * | 2023-04-07 | 2024-10-10 | 株式会社オーディオテクニカ | 電気音響変換器およびヘッドホン |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101557547B (zh) * | 2008-04-09 | 2014-05-07 | 苏州登堡电子科技有限公司 | 一种骨传导传感器 |
| CN102291658B (zh) * | 2011-06-21 | 2014-02-12 | 陈奚平 | 一种扬声器 |
| CA2852926A1 (en) * | 2011-10-17 | 2013-04-25 | The Guitammer Company | Vibration transducer and actuator |
| US9384639B2 (en) * | 2012-07-05 | 2016-07-05 | Michael Joseph White | Rigid fixture for coupling one or more transducers to the upper back of the human body |
| CN105050015B (zh) * | 2015-08-13 | 2018-06-08 | 艺尔康听力科技(上海)有限公司 | 植入式的骨导助听器专用振子 |
| CN106303807A (zh) * | 2016-08-22 | 2017-01-04 | 明光市龙腾科技工贸有限公司 | 扬声器的减震装置 |
| CN109196875A (zh) * | 2017-04-21 | 2019-01-11 | 株式会社坦姆科日本 | 骨传导扬声器单元 |
| CN112887870B (zh) * | 2021-03-19 | 2025-09-30 | 苏州索迩电子技术有限公司 | 一种骨传导发声装置和一种可穿戴设备 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61166692U (ja) * | 1985-04-01 | 1986-10-16 | ||
| JPH0937536A (ja) * | 1995-07-14 | 1997-02-07 | Uinberu:Kk | 音声伝達装置の振動変換器 |
| JP2002055683A (ja) * | 2000-08-08 | 2002-02-20 | Foster Electric Co Ltd | 電磁型音響変換器 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3019304A (en) * | 1961-02-20 | 1962-01-30 | Beltone Hearing Aid Company | Electroacoustic transducers |
| JPS61166692A (ja) | 1985-01-18 | 1986-07-28 | 全日本空輸株式会社 | 避難誘導表示装置 |
| US4843628A (en) * | 1986-07-10 | 1989-06-27 | Stanton Magnetics, Inc. | Inertial microphone/receiver with extended frequency response |
| US6389140B1 (en) * | 1999-11-30 | 2002-05-14 | Jose Wei | Ceramic piezoelectric type microphone |
| JP3556168B2 (ja) * | 2000-12-27 | 2004-08-18 | 株式会社テムコジャパン | 骨導スピーカ |
| JP2002271895A (ja) * | 2001-03-12 | 2002-09-20 | Citizen Electronics Co Ltd | 電磁発音体用磁石 |
-
2005
- 2005-03-04 CA CA002558300A patent/CA2558300A1/en not_active Abandoned
- 2005-03-04 TW TW094106581A patent/TW200534733A/zh unknown
- 2005-03-04 WO PCT/JP2005/003719 patent/WO2005086522A1/ja not_active Ceased
- 2005-03-04 KR KR1020067016520A patent/KR20070015126A/ko not_active Withdrawn
- 2005-03-04 EP EP05719991A patent/EP1722590A1/en not_active Withdrawn
- 2005-03-04 CN CN2005800071928A patent/CN1930907B/zh not_active Expired - Fee Related
- 2005-03-04 AU AU2005219247A patent/AU2005219247A1/en not_active Abandoned
- 2005-03-04 JP JP2006515315A patent/JP4163231B2/ja not_active Expired - Fee Related
- 2005-03-04 US US10/597,825 patent/US20070160238A1/en not_active Abandoned
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61166692U (ja) * | 1985-04-01 | 1986-10-16 | ||
| JPH0937536A (ja) * | 1995-07-14 | 1997-02-07 | Uinberu:Kk | 音声伝達装置の振動変換器 |
| JP2002055683A (ja) * | 2000-08-08 | 2002-02-20 | Foster Electric Co Ltd | 電磁型音響変換器 |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281647A (zh) * | 2006-01-12 | 2013-09-04 | 索尼株式会社 | 耳机装置 |
| JP2010510750A (ja) * | 2006-11-28 | 2010-04-02 | ソン・シク・チェ | 振動スピーカー及びそれに使用されるフェイスプレート及びこれを具備した携帯端末機 |
| US10779075B2 (en) | 2010-12-27 | 2020-09-15 | Finewell Co., Ltd. | Incoming/outgoing-talk unit and incoming-talk unit |
| US10778823B2 (en) | 2012-01-20 | 2020-09-15 | Finewell Co., Ltd. | Mobile telephone and cartilage-conduction vibration source device |
| US10834506B2 (en) | 2012-06-29 | 2020-11-10 | Finewell Co., Ltd. | Stereo earphone |
| JPWO2015125566A1 (ja) * | 2014-02-20 | 2017-03-30 | 株式会社テムコジャパン | 骨伝導スピーカユニット |
| TWI561092B (en) * | 2014-02-20 | 2016-12-01 | Temco Japan | Bone conduction speaker unit |
| US9532123B2 (en) | 2014-02-20 | 2016-12-27 | Temco Japan Co., Ltd. | Bone conduction speaker unit |
| WO2015125566A1 (ja) * | 2014-02-20 | 2015-08-27 | 株式会社テムコジャパン | 骨伝導スピーカユニット |
| WO2015198683A1 (ja) * | 2014-06-26 | 2015-12-30 | 株式会社テムコジャパン | 骨伝導スピーカ |
| US10848607B2 (en) | 2014-12-18 | 2020-11-24 | Finewell Co., Ltd. | Cycling hearing device and bicycle system |
| US11601538B2 (en) | 2014-12-18 | 2023-03-07 | Finewell Co., Ltd. | Headset having right- and left-ear sound output units with through-holes formed therein |
| US10967521B2 (en) | 2015-07-15 | 2021-04-06 | Finewell Co., Ltd. | Robot and robot system |
| US10795321B2 (en) | 2015-09-16 | 2020-10-06 | Finewell Co., Ltd. | Wrist watch with hearing function |
| JP2017076919A (ja) * | 2015-10-16 | 2017-04-20 | 株式会社ファインウェル | 携帯電話、イヤホンおよび電磁型振動ユニット |
| US10778824B2 (en) | 2016-01-19 | 2020-09-15 | Finewell Co., Ltd. | Pen-type handset |
| CN112153539A (zh) * | 2018-09-18 | 2020-12-29 | 徐发喜 | 一种骨传导扬声器 |
| US11526033B2 (en) | 2018-09-28 | 2022-12-13 | Finewell Co., Ltd. | Hearing device |
| WO2024210179A1 (ja) * | 2023-04-07 | 2024-10-10 | 株式会社オーディオテクニカ | 電気音響変換器およびヘッドホン |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1722590A1 (en) | 2006-11-15 |
| KR20070015126A (ko) | 2007-02-01 |
| JP4163231B2 (ja) | 2008-10-08 |
| US20070160238A1 (en) | 2007-07-12 |
| CA2558300A1 (en) | 2005-09-15 |
| CN1930907A (zh) | 2007-03-14 |
| TW200534733A (en) | 2005-10-16 |
| JPWO2005086522A1 (ja) | 2007-08-09 |
| AU2005219247A1 (en) | 2005-09-15 |
| CN1930907B (zh) | 2012-11-14 |
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