CN2917139Y - Bone conductive loudspeaker - Google Patents
Bone conductive loudspeaker Download PDFInfo
- Publication number
- CN2917139Y CN2917139Y CN 200620034911 CN200620034911U CN2917139Y CN 2917139 Y CN2917139 Y CN 2917139Y CN 200620034911 CN200620034911 CN 200620034911 CN 200620034911 U CN200620034911 U CN 200620034911U CN 2917139 Y CN2917139 Y CN 2917139Y
- Authority
- CN
- China
- Prior art keywords
- coil
- bone
- permanent magnet
- supporter
- shell fragment
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a bone conduction loudspeaker, which comprises a bottom magnetic yoke, a coil arranged on the bottom magnetic yoke and a central magnetizer in the coil. A permanent magnet or magnetic yoke serves as the magnetizer. An elastic sheet is arranged on a support out of the coil. In addition, a vibrating board is arranged on the elastic sheet. The utility model is characterized in that: The elastic sheet is arranged on the support top and is provided with a cantilever shape and extended above the central magnetizer. Under the control of the central magnetizer, the utility model enhances flux, guarantees the elastic sheet amplitude and small size of the bone conduction loudspeaker, and meets demand for the same vibrating intensity through a rational and optimal structure.
Description
Technical field
The utility model relates to a kind of bone-conduction speaker, a kind of bone-conduction speaker that has the improvement structure, improves loudspeaker enclosure in the time of specifically.
Background technology
As bone-conduction speaker in the past, usually the structure that is adopted is: have a cylinder shell, have oscillating plate and shell fragment at the circular cylindrical shell end face, the bottom of housing is a yoke, chimeric in housing have a cylinder magnet, central authorities in housing have central yoke, are surrounded by coil outside central yoke.
This kind bone-conduction speaker, owing to dispose central yoke in order with one heart circularly from central portion, coil, magnet, housing, institute thinks that the raising delivery efficiency need increase the diameter of center pole, and increase the number of turns of coil, must correspondingly increase thus and surround its magnet and housing on every side.Therefore, correspondingly the increase of outside dimension becomes inevitable.Occur adopting the bone-conduction speaker of central permanent magnet for this reason, can reduce the element overall dimensions.
Along with bone-conduction speaker is assembled into the expansion of the medium purposes of portable telephone, the requirement of further miniaturization has been proposed.Still there is this miniaturization in the bone-conduction speaker of said structure and guarantees the problem of intensity of phonation.
Summary of the invention
The purpose of this utility model is: a kind of rational in infrastructure, bone-conduction speaker that volume is less is provided.
The technical solution of the utility model is:
A kind of bone-conduction speaker, include bottom yoke, be installed in the coil on the bottom yoke, central magnetic conductor is installed in coil, and this magnetic conductor is permanent magnet or yoke, and shell fragment is fixed on the supporter of coil periphery, oscillating plate is fixed on the shell fragment, it is characterized in that shell fragment is fixed on the top of supporter, shell fragment is the cantilever-shaped central magnetic conductor top that extend out to.
The utility model can also be by optimizing the position of coil periphery magnet, and the fixed form of shell fragment reduces the size of bone-conduction speaker, regulates its Oscillation Amplitude by fluting on shell fragment.
The beneficial effects of the utility model are: under the effect of central magnet, increased magnetic flux, by rational structure optimization, guaranteed the Oscillation Amplitude of shell fragment, made bone-conduction speaker can also satisfy identical oscillation intensity when size reduces.
Description of drawings
Fig. 1 is the cutaway view of the utility model one embodiment.
Fig. 2 is a vertical view embodiment illustrated in fig. 1.
Fig. 3 is the cutaway view of another embodiment of the utility model.
Fig. 4 is a vertical view embodiment illustrated in fig. 3.
Wherein, Reference numeral: 1 is coil, and 2 is oscillating plate, and 3 is shell fragment, and 4 is supporter, and 5 is bottom yoke, and 6 is central magnetic conductor.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Specific embodiment of the utility model 1, as depicted in figs. 1 and 2, a kind of bone-conduction speaker, include bottom yoke 5, be installed in the coil 1 on the bottom yoke 5, the central magnetic conductor 6 that permanent magnet is made is installed in coil 1, shell fragment 3 is fixed on the supporter 4 of coil 1 a peripheral side, this supporter 4 is to make towards opposite permanent magnet with the permanent magnet pole of central authorities, oscillating plate 2 is fixed on the shell fragment 3, different with existing bone-conduction speaker structure is, shell fragment 3 is fixed on the top of supporter 4, and shell fragment 3 is the permanent magnet top in the middle of cantilever-shaped the extending out to.In the present embodiment in order to increase Oscillation Amplitude, improve the permanent magnet that permanent magnet magnetic field direction that effect can also replace with oscillating plate 2 magnetic direction and coil 1 central authorities is consistent.
In the above-described embodiments, the supporter 4 in coil 1 periphery also can adopt yoke to make; Yoke perhaps is installed as central magnetic conductor 6 in coil 1, is adopted permanent magnet as supporter 4 in coil 1 periphery.
Specific embodiment of the utility model 2, as shown in Figure 3 and Figure 4, a kind of bone-conduction speaker, including the along continuous straight runs cross-sectioned is the bottom yoke 5 of rectangle, be installed in the coil 1 on the bottom yoke 5, the central magnetic conductor 6 that permanent magnet is made is installed at the center of coil 1, supporter 4 symmetries of two yoke making are installed in outside the coil 1, the short brink of rectangle, and with respect to coil 1 symmetry, the two ends of shell fragment 3 are fixed on two supporter 4 tops, be the cantilever-shaped top that extends to central magnetic conductor 6 respectively, oscillating plate 2 is fixed on the shell fragment 3.
In the above-described embodiments, can also regulate its Oscillation Amplitude by on shell fragment 3, opening with the perpendicular groove of length direction.
The foregoing description can guarantee the oscillation intensity of bone-conduction speaker through using proof when reducing component size.
Claims (9)
1. bone-conduction speaker, include bottom yoke (5), be installed in the coil (1) on the bottom yoke (5), central magnetic conductor (6) is installed in coil (1), and this magnetic conductor is permanent magnet or yoke, and shell fragment (3) is fixed on the peripheral supporter (4) of coil (1), oscillating plate (2) is fixed on the shell fragment (3), it is characterized in that shell fragment (3) is fixed on the top of supporter (4), shell fragment (3) is cantilever-shaped central magnetic conductor (6) top that extend out to.
2. bone-conduction speaker according to claim 1 is characterized in that, the central magnetic conductor of installing in coil (1) (6) is a permanent magnet, and the supporter outside coil (4) is that magnetic pole is towards the permanent magnet opposite with the permanent magnet of central authorities.
3. bone-conduction speaker according to claim 1 is characterized in that, the central magnetic conductor of installing in coil (1) (6) is a permanent magnet, and the supporter (4) peripheral at coil (1) is yoke.
4. bone-conduction speaker according to claim 1 is characterized in that, the central magnetic conductor of installing in coil (1) (6) is a yoke, and the supporter (4) peripheral at coil (1) is permanent magnet.
5. according to claim 1 or 2 or 3 or 4 described bone-conduction speakers, it is characterized in that, only be fixed with supporter (4) in the peripheral side of coil (1).
6. according to claim 1 or 2 or 3 or 4 described bone-conduction speakers, it is characterized in that, be fixed with two supporters (4) in the bilateral symmetry of coil (1).
7. bone-conduction speaker according to claim 1 is characterized in that, described bottom yoke (5) end face is a rectangle, and supporter (4) is installed in the short brink of this rectangle.
8. bone-conduction speaker according to claim 1 is characterized in that, described shell fragment has the groove perpendicular with length direction on (3).
9. according to claim 1 or 2 or 3 or 4 described bone-conduction speakers, it is characterized in that described oscillating plate (2) is a permanent magnet, the magnetic direction in its magnetic direction and coil (1) centre is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620034911 CN2917139Y (en) | 2006-07-13 | 2006-07-13 | Bone conductive loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620034911 CN2917139Y (en) | 2006-07-13 | 2006-07-13 | Bone conductive loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2917139Y true CN2917139Y (en) | 2007-06-27 |
Family
ID=38188053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620034911 Expired - Fee Related CN2917139Y (en) | 2006-07-13 | 2006-07-13 | Bone conductive loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2917139Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101203067B (en) * | 2007-12-10 | 2012-11-21 | 陈奚平 | Vibration transducer |
| CN102833651A (en) * | 2012-08-24 | 2012-12-19 | 江西联创宏声电子有限公司 | Sectionally coated spring plate and electric acoustic device using same |
| CN108364554A (en) * | 2018-02-11 | 2018-08-03 | 合肥市科技馆 | A kind of human body auscultation science popularization equipment |
-
2006
- 2006-07-13 CN CN 200620034911 patent/CN2917139Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101203067B (en) * | 2007-12-10 | 2012-11-21 | 陈奚平 | Vibration transducer |
| CN102833651A (en) * | 2012-08-24 | 2012-12-19 | 江西联创宏声电子有限公司 | Sectionally coated spring plate and electric acoustic device using same |
| CN108364554A (en) * | 2018-02-11 | 2018-08-03 | 合肥市科技馆 | A kind of human body auscultation science popularization equipment |
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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: 20070627 Termination date: 20130713 |