CN2781696Y - Bone conduction loudspeaker - Google Patents
Bone conduction loudspeaker Download PDFInfo
- Publication number
- CN2781696Y CN2781696Y CN 200420061795 CN200420061795U CN2781696Y CN 2781696 Y CN2781696 Y CN 2781696Y CN 200420061795 CN200420061795 CN 200420061795 CN 200420061795 U CN200420061795 U CN 200420061795U CN 2781696 Y CN2781696 Y CN 2781696Y
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- circular
- bone
- circular yoke
- oscillating plate
- yoke
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Abstract
The utility model discloses a bone conduction loudspeaker which comprises a casing and a main body of the bone conduction loudspeaker, wherein the casing is composed of an upper cover and a lower cover, the main body of the bone conduction loudspeaker is arranged in the casing. The main body of the bone conduction loudspeaker comprises a circular yoke iron, a permanent magnet, a composite unit and a ring-type coil, wherein the circular yoke iron is provided with a central magnetic pole, the composite unit is composed of a vibrating diaphragm and a vibrating plate, the permanent magnet and the ring-type coil are concentrically fixed on the circular yoke iron provided with the central magnetic pole, and the composite unit of a circular vibrating diaphragm and a vibrating plate is arranged above the circular yoke iron. The utility model can be matched with various existing sound source devices with no requirement of additionally installing a power amplifying driving source. The utility model can satisfy the use requirements of various portable devices because of the compact exterior and volume. The utility model has the advantages of simple manufacture and easy assembly.
Description
Technical field
The utility model relates to a kind of bone-conduction speaker, relates in particular to a kind of transfer of vibration that can be by contacting with skull diaphragm panel be produced with the audio signal of input to listening a bone tissue, obtains the loud speaker of sound with this.
Background technology
As everyone knows, mainly the conduction by air or other medium makes us can hear sound, make us can listen (sensation) too for conducting to the vibration of listening bone tissue to sound, publication number is that the Chinese patent of CN1395811A discloses a kind of hearing aid device system, the transducer of this patent is to be suspended on the inner top surface of housing by being installed in the yoke that vibrating diaphragm above the yoke and oscillating plate will be equipped with voice coil loudspeaker voice coil and magnet, is fixed with screw.
Because its constructional characteristics, bone-conduction speaker for this structure needs stronger drive source (audio amplification device) in actual use, and its volume is often bigger, only be adapted at some stationary applica-tions and use (as seeing TV etc.), for some for using frequent portable set in the noisy environment, owing to be subjected to the restriction of external form volume and consumed power, then be difficult to have a better effect.
Summary of the invention
Goal of the invention of the present utility model is intended to overcome the defective of above-mentioned prior art, and providing a kind of does not need bigger drive source, and the little bone-conduction speaker of external form volume, to satisfy the user demand of portable set.
The utility model adopts following technical solution for achieving the above object:
Bone-conduction speaker comprises: the housing of being made up of loam cake and lower cover; Be installed in the main body of the bone-conduction speaker in this housing, comprise that one has the circular yoke of center pole, permanent magnet, the assembly of vibrating diaphragm and oscillating plate, circular coil; Permanent magnet and circular coil are fixed on the circular yoke with center pole with one heart, and the assembly of Round Membranes sheet and oscillating plate is installed in the top of circular yoke.
Described Round Membranes sheet and circular tabular oscillating plate connect as one with the spot welding mode, and with circular yoke between do not have and directly be connected.
Center pole on the described circular yoke adopts magnetostrictive material terbium dysprosium ferrum magnetostriction alloys (Terfenol-D) to make, and its two end faces are connected with the assembly and the circular yoke of oscillating plate with the Round Membranes sheet respectively.
Described circular diaphragm sheet connects as one with the spot welding mode with the oscillating plate with symmetrical structure, and with circular yoke on the column holder between be connected with screw.
The described permanent magnet that is fixed on the circular yoke with center pole is a ringshaped magnet.
Two end faces of the ring-type lower cover that described non-magnet material is made are provided with draw-in groove, are connected with the edge of the assembly of oscillating plate with circular yoke with center pole and Round Membranes sheet respectively.
The outside is respectively equipped with adhesive-layer in the top of the tubbiness loam cake that described flexible material is made, the adhesive-layer of the inboard at top is mutually bonding with circular tabular oscillating plate, the bayonet socket of its barrel wall is connected with the marginal portion of the upper surface of lower cover and Round Membranes sheet, and the opening of its barrel wall then is wrapped in the outside of lower cover.
Described oscillating plate with symmetrical structure has the concave groove of at least one group of symmetry.
The described permanent magnet that is fixed on the circular yoke with center pole is one group of camber magnet, and also is fixed with the magnetic pole plate of a circle on center pole.
The bottom of described circular yoke is connected with the ring-type bumper ring that make with flexible material the inboard of lower cover.
The utility model compared with prior art has the following advantages: do not need to be provided with in addition the power amplification drive source, can be complementary with various existing audiogenic devices; Its external form volume is small and exquisite, can satisfy the user demand of various portable sets; And manufacture simple, easy to assembly.
Description of drawings: because embodiment of the present utility model has several modes, and structure is slightly different, below in conjunction with accompanying drawing specific embodiment at length is illustrated:
Accompanying drawing 1 is the structural representation of first kind of embodiment of the present utility model.
Accompanying drawing 2 is the structural representation of second kind of embodiment of the present utility model.
Accompanying drawing 3 to accompanying drawing 7 is the structural representation of the third embodiment of the present utility model.
Embodiment one:
As shown in Figure 1, on a yoke 1 with central cylindrical shape magnetic pole, circular ring magnet 2 and voice coil loudspeaker voice coil 3 are housed, the lead-out wire of voice coil loudspeaker voice coil 3 is by drawing in the circular hole 8 that is located on the yoke 1, two end faces of the circular housing made from the non-magnetic material 4 respectively have a bayonet socket, the lower surface bayonet socket of shell 4 and yoke 1 embedding mutually, and it is fixing with viscose glue 9 at its place, outer face, the bayonet socket place, upper surface of shell 4 then with the edge part phase-splitting embedding of vibrating diaphragm 5, the centre of vibrating diaphragm 5 is fixed with circular oscillating plate 6 by spot welding, the tubbiness circular upper cover made from flexible material (as rubber etc.) 7, the projection at its center is mutually bonding with oscillating plate 6, bayonet socket on its barrel wall part respectively with the upper end of shell 4 and the edge part phase-splitting crimping of vibrating diaphragm 5, vibrating diaphragm 5 is fixed, and the ring-type limit of drum shape loam cake 7 then wraps the outer wall of shell 4.
When passing through tone currents in the voice coil loudspeaker voice coil in the present embodiment 3, make vibrating diaphragm 5 under the acting in conjunction in annular magnet and voice coil loudspeaker voice coil magnetic field, produce vibration, and the centre bulge that reaches gentle matter loam cake 7 by oscillating plate 6 passes, when the last plane of the loam cake 7 that flexible material is made contacts with ear bones, can listen (sensation) to sound.
Embodiment two:
As shown in Figure 2, be provided with a magnetic post 10 of making by giant magnetostrictive material Terfenol-D in the centre of a circular yoke 1, this magnetic post has two end faces, the central part phase-splitting of its lower surface and circular yoke is bonding, its upper surface is mutually bonding with the centre of vibrating diaphragm 5, be on the yoke 1 at center voice coil loudspeaker voice coil 3 and annular magnet 2 to be housed with magnetic post 10, the structure of remainder is identical with part among the embodiment 1.
When passing to tone currents in the voice coil loudspeaker voice coil 3, the magnetic post of being made by giant magnetostrictive material Terfeno1-D 10 produces deformation (elongating or shortening).Drive with this that vibrating diaphragm 5 makes it to produce vibration and the centre bulge by oscillating plate 6 and gentle matter loam cake 7 passes.
Embodiment three:
Accompanying drawing 3 is the structural representation when vibrating diaphragm is not installed.
Accompanying drawing 4 is the structural representation of vibrating diaphragm (figure is that oscillating plate makes progress)
Accompanying drawing 5 when shell is not installed along the cross-sectional schematic of X-direction.
Accompanying drawing 6 when shell is not installed along the cross-sectional schematic of Y direction.
As shown in Figure 7, have be equipped with on the circular yoke 1 of central magnetic pole voice coil loudspeaker voice coil 3 with one heart and two arc-shaped magnets 2 (pole orientation is consistent) of installing axisymmetrically, circular magnetic pole plate 13 also is housed on the central magnetic pole of yoke 1, and be fixed together with screw 14 and central magnetic pole, the effect of magnetic pole plate 13 is not only to have enlarged the effective area of central magnetic pole but also can be to 3 fixations of voice coil loudspeaker voice coil, on circular yoke 1, be distributed with two holders 18 (as shown in Figure 6) axisymmetrically, vibrating diaphragm 5 be attached thereto the oscillating plate 6 that connects (available spot welding is connected) and be fixed on 2 holders 18 of yoke 1 by screw 19, the vibrating diaphragm 5 that is circle " day " font as shown in Figure 4 links together by spot welding mode and oscillating plate 6, and the centre of oscillating plate 6 is and the similar circle of central magnetic pole plate 13 sizes.On whole oscillating plate 6, have several grooves 15 according to certain rules, its effect is to reduce to make it vibrative energy when increasing the effective area of oscillating plate, oscillating plate 6 is distributed with two screw holes by the axial symmetry direction, be used for and being connected and fixed of outer casing upper cover 7, vibrating diaphragm 5 is distributed with two circular holes symmetrically along centerline axis, and screw 19 connects with two holders 18 that distribute axisymmetrically of yoke 1 by this hole.In order to vibrating diaphragm 5 is fixed.Loam cake 7 and lower cover 4 are connected by tongue and groove.Between the inboard of lower cover 4 and yoke 1, be embedded with the bumper ring 12 that a circular flexible material (as rubber) is made in addition, can play protecting against shock and suppress the effect of undue oscillation.
In sum, as can be seen.The scheme that present embodiment adopts is the effective area that as far as possible increases magnetic pole and oscillating plate in limited volume, and the form reduction by recessing on oscillating plate simultaneously makes its vibrative energy, makes it to reach the purpose of dwindling overall volume, reducing power consumption.
Claims (10)
1, a kind of bone-conduction speaker comprises; The housing of forming by loam cake and lower cover; Be installed in the main body of the bone-conduction speaker in this housing, comprise that one has the circular yoke of center pole, permanent magnet, the assembly of vibrating diaphragm and oscillating plate, circular coil; It is characterized in that: permanent magnet and circular coil are fixed on the circular yoke with center pole with one heart, and the assembly of Round Membranes sheet and oscillating plate is installed in the top of circular yoke.
2, bone-conduction speaker as claimed in claim 1 is characterized in that, Round Membranes sheet and circular tabular oscillating plate connect as one with the spot welding mode, and with circular yoke between do not have and directly be connected.
3, bone-conduction speaker as claimed in claim 1, it is characterized in that, center pole on the circular yoke adopts magnetostrictive material terbium dysprosium ferrum magnetostriction alloy to make, and its two end faces are connected with the assembly and the circular yoke of oscillating plate with the Round Membranes sheet respectively.
4, bone-conduction speaker as claimed in claim 1 is characterized in that, the circular diaphragm sheet connects as one with the spot welding mode with the oscillating plate with symmetrical structure, and with circular yoke on the column holder between be connected with screw.
5, bone-conduction speaker as claimed in claim 1 or 2 is characterized in that, the permanent magnet that is fixed on the circular yoke with center pole is a ringshaped magnet.
As claim 1 or 3 described bone-conduction speakers, it is characterized in that 6, the permanent magnet that is fixed on the circular yoke with center pole is a ringshaped magnet.
7, as claim 1 or 2 or 3 described bone-conduction speakers, it is characterized in that, two end faces of the ring-type lower cover that non-magnet material is made are provided with draw-in groove, are connected with the edge of the assembly of oscillating plate with circular yoke with center pole and Round Membranes sheet respectively; The outside is respectively equipped with adhesive-layer in the top of the tubbiness loam cake that flexible material is made, the adhesive-layer of the inboard at top is mutually bonding with circular tabular oscillating plate, the bayonet socket of its barrel wall is connected with the marginal portion of the upper surface of lower cover and Round Membranes sheet, and the opening of its barrel wall then is wrapped in the outside of lower cover.
8, bone-conduction speaker as claimed in claim 4 is characterized in that, the oscillating plate with symmetrical structure has the concave groove of at least one group of symmetry.
9, bone-conduction speaker as claimed in claim 4 is characterized in that, the permanent magnet that is fixed on the circular yoke with center pole is one group of camber magnet, and also is fixed with the magnetic pole plate of a circle on center pole.
10, bone-conduction speaker as claimed in claim 4 is characterized in that, the bottom of circular yoke is connected with the ring-type bumper ring that make with flexible material the inboard of lower cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061795 CN2781696Y (en) | 2004-10-26 | 2004-10-26 | Bone conduction loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061795 CN2781696Y (en) | 2004-10-26 | 2004-10-26 | Bone conduction loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2781696Y true CN2781696Y (en) | 2006-05-17 |
Family
ID=36762895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420061795 Expired - Fee Related CN2781696Y (en) | 2004-10-26 | 2004-10-26 | Bone conduction loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2781696Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101557547A (en) * | 2008-04-09 | 2009-10-14 | 胡强 | Bone conduction sensor |
| WO2012083551A1 (en) * | 2010-12-24 | 2012-06-28 | Jin Zaishan | Bone conduction earphone |
| CN101448188B (en) * | 2007-11-26 | 2012-09-19 | 马钧 | Novel shock-wave converter |
| CN103597803A (en) * | 2011-12-06 | 2014-02-19 | 株式会社坦姆科日本 | Mobile phone employing bone conduction device |
| CN103747397A (en) * | 2013-12-20 | 2014-04-23 | 汉得利（常州）电子有限公司 | Miniature moving-iron bone conduction driving device |
| CN104936108A (en) * | 2015-06-11 | 2015-09-23 | 胡锦翔 | Bone conduction loudspeaker device |
| CN105050015A (en) * | 2015-08-13 | 2015-11-11 | 艺尔康听力科技（上海）有限公司 | Oscillator special for implantable ossiphone |
| CN105340291A (en) * | 2014-02-20 | 2016-02-17 | 株式会社坦姆科日本 | Bone conduction speaker unit |
| CN108364554A (en) * | 2018-02-11 | 2018-08-03 | 合肥市科技馆 | A kind of human body auscultation science popularization equipment |
| CN114258688A (en) * | 2019-09-18 | 2022-03-29 | ＢｏＣｏ株式会社 | Pickup sensor and bone conduction speaker |
-
2004
- 2004-10-26 CN CN 200420061795 patent/CN2781696Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101448188B (en) * | 2007-11-26 | 2012-09-19 | 马钧 | Novel shock-wave converter |
| CN101557547B (en) * | 2008-04-09 | 2014-05-07 | 苏州登堡电子科技有限公司 | Bone conduction sensor |
| WO2009124462A1 (en) * | 2008-04-09 | 2009-10-15 | Hu Qiang | A bone-conduction sensor |
| CN101557547A (en) * | 2008-04-09 | 2009-10-14 | 胡强 | Bone conduction sensor |
| WO2012083551A1 (en) * | 2010-12-24 | 2012-06-28 | Jin Zaishan | Bone conduction earphone |
| CN103597803A (en) * | 2011-12-06 | 2014-02-19 | 株式会社坦姆科日本 | Mobile phone employing bone conduction device |
| CN103747397A (en) * | 2013-12-20 | 2014-04-23 | 汉得利（常州）电子有限公司 | Miniature moving-iron bone conduction driving device |
| CN105340291A (en) * | 2014-02-20 | 2016-02-17 | 株式会社坦姆科日本 | Bone conduction speaker unit |
| CN104936108A (en) * | 2015-06-11 | 2015-09-23 | 胡锦翔 | Bone conduction loudspeaker device |
| CN104936108B (en) * | 2015-06-11 | 2018-06-26 | 深圳市喜声多媒体技术有限公司 | A kind of bone-conduction speaker device |
| CN105050015A (en) * | 2015-08-13 | 2015-11-11 | 艺尔康听力科技（上海）有限公司 | Oscillator special for implantable ossiphone |
| CN105050015B (en) * | 2015-08-13 | 2018-06-08 | 艺尔康听力科技（上海）有限公司 | The special oscillator of ossiphone of implanted |
| CN108364554A (en) * | 2018-02-11 | 2018-08-03 | 合肥市科技馆 | A kind of human body auscultation science popularization equipment |
| CN114258688A (en) * | 2019-09-18 | 2022-03-29 | ＢｏＣｏ株式会社 | Pickup sensor and bone conduction speaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060517 Termination date: 20121026 |