CN101945311A

Movatterモバイル変換

Info

Publication number: CN101945311A
Application number: CN2009103040673A
Authority: CN
Inventors: 陈奚平
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-07
Filing date: 2009-07-07
Publication date: 2011-01-12

Abstract

The invention discloses a bone conduction loudspeaker, comprising a pedestal assembly, an elastic sheet assembly and an upper cover, wherein the upper cover is installed above the elastic sheet assembly which is arranged on an opening at the upper edge of the pedestal assembly including a pedestal, a magnet and a magnetic board; a groove on the pedestal is provided with the magnet and the upper part of the magnet is provided with the magnetic board; the elastic sheet assembly comprises an elastic sheet and a coil installed on one surface of the elastic sheet and in the groove of the pedestal; the elastic sheet assembly also comprises at least one convex curve structure installed on the other surface of the elastic sheet. The elastic sheet assembly and the convex curve structure and the installation thereof in the invention can cause the elastic sheet to produce a better vibration effect with a high-frequency and low, intermediate frequency, and have beneficial effects of simple making technique, good compatibility with the existing products and is easy to replace.

Description

A kind of bone-conduction speaker

Technical field

The present invention relates to a kind of loud speaker, particularly relate to the employed bone-conduction speaker of a kind of insert earphone (or earphone).

Background technology

A small-sized loud speaker all is equipped with in the inside of existing insert earphone (or earphone).This loud speaker comes the vibrate air sounding by built-in vibrating diaphragm, in order to obtain acoustics preferably, the employed vibrating diaphragm of existing insert earphone (or earphone) is made of the curved surface of two different curvature radius usually, the positive camber that its radius of curvature is bigger is used for sounding low, Mid Frequency, the less negative camber of radius of curvature then is used for the sounding of high band.In addition, also the method by ear canal reaches the air that makes in the ear chamber and vibes, to obtain auditory effect preferably.The adverse consequences that this method is brought can cause damage to user's hearing, and especially the damage that caused when big volume work of insert earphone is more obvious.

For this reason; people have proposed to adopt bone-conduction speaker to substitute the technical scheme of ventional loudspeakers; to reach the purpose of protection user hearing; in Chinese invention patent 200820140405.5 " adopting the PlayGear Stealth of bone-conduction speaker ", provide a kind of PlayGear Stealth that can directly be connected the employing bone-conduction speaker on the portable equipment.Though this invention can play a protective role to user's hearing; and reduced the power of bone-conduction speaker; make it directly to be connected with various portable equipments, but owing to its tone color that characteristic determined of bone-conduction speaker still lacks perfection, especially more obvious in the performance of high band.And, also will cause the performance of its sensitivity to lack perfection owing to the machinery inertial of vibrating reed in this invention is still bigger.In addition, when adopting this method design insert earphone, to having relatively high expectations of designer, because when the outward appearance style changes, must adjust accordingly to the structure of its inside.

Conventional insert earphone (or earphone) also has certain osteoacusis effect when big volume is worked; and also can make its ambient air produce vibration usually when using bone-conduction speaker; its difference is: conventional insert earphone (or earphone) is based on vibrate air, and bone-conduction speaker is then to produce the mechanical oscillation of solid.

Summary of the invention

The objective of the invention is at the deficiencies in the prior art, a kind of have low-power consumption, broadband, highly sensitive bone-conduction speaker are provided, and this bone-conduction speaker has easy formation production in enormous quantities and with existing insert earphone outward appearance style the characteristics of Adapter Property is preferably arranged.

A kind of bone-conduction speaker, comprise base assembly, shell fragment assembly and loam cake, loam cake is arranged at shell fragment assembly top, all be installed on base assembly top edge opening part, base assembly comprises base, magnet and magnetic conductive board, be provided with magnet in the base groove, the magnet top is provided with magnetic conductive board, the shell fragment assembly comprises shell fragment and coil, coil is arranged at a side of shell fragment, place in the base groove, the shell fragment assembly also comprises the curved-surface structure that at least one is protruding, and the curved-surface structure of projection is arranged on the shell fragment.

A kind of bone-conduction speaker, the projection curved-surface structure be arranged at shell fragment the centre.

A kind of bone-conduction speaker, the centre of shell fragment is provided with the curved-surface structure of a projection, and the periphery of the curved-surface structure of projection is provided with another protruding curved-surface structure.

A kind of bone-conduction speaker, the curved-surface structure of projection and shell fragment adopt integral forming technique to constitute.

A kind of bone-conduction speaker, the curved-surface structure of projection and shell fragment adopt the split moulding process to constitute.

A kind of bone-conduction speaker, shell fragment have the linear structure that is no less than three two concentric circuluses are connected, and shell fragment inner annular structure is connected with at least one protruding curved-surface structure, and all the other structures of shell fragment are the engraved structure of symmetry.

A kind of bone-conduction speaker, shell fragment edge have the outstanding structure of symmetry.

A kind of bone-conduction speaker, the curved-surface structure of shell fragment and projection is made of non-magnet material.

A kind of bone-conduction speaker, base is made by permeability magnetic material.

A kind of bone-conduction speaker, the circulus diameter of shell fragment is less than the internal diameter of first step of base upper end.

The curved-surface structure and the setting thereof of elastic piece structure and projection among the present invention; can make shell fragment produce dither effect preferably; can make it possess the vibrating effect of good low, Mid Frequency again; also can be connected mutually simultaneously with the shell (base) and the loam cake of the conventional loud speaker that now has been widely used; thereby reach the hearing that to protect the user; can produce perfect acoustics again, but also have the beneficial effect that manufacture craft is easy, high with the existing product compatibility, be easy to replace.

Description of drawings

Fig. 1 is a kind of bone-conduction speaker mounting structure of the present invention cutaway view;

Fig. 2 is an elastic piece structure vertical view among the present invention;

Fig. 3 is an elastic piece structure end view among the present invention;

Fig. 4 is embodiment two elastic piece structure vertical views among the present invention.

Fig. 5 is 31 kinds of bone-conduction speaker mounting structures of embodiment cutaway view among the present invention.

Wherein, 1 shell fragment, 1-a gives prominence to structure, 1-b linear structure, the 1-c circulus, the curved-surface structure of 2 projectioies, 3 loam cakes, 4 magnetic conductive boards, 5 is magnet, 6 coils, 7 bases, 8 engraved structures.

Embodiment

Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.

Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.

The invention will be further described below in conjunction with drawings and Examples.

Embodiment 1

As shown in Figure 1, have the curved-surface structure 2 of a single face projection in the centre ofshell fragment 1,shell fragment 1 adopts integral forming technique to make with the curved-surface structure 2 of single face projection.

As shown in Figure 2, adopt theshell fragment 1 top edge opening part of the elasticized thin sheet material making of non-magnetic to have symmetrical outstanding structure 1-a, the edge is circulus 1-c, be provided with the curved-surface structure 2 of a single face projection in the centre ofshell fragment 1, be by three and be symmetrically distributed and two ends are that the linear structure 1-b of band bending connects two concentric circulus 1-c and is connected with the curved-surface structure 2 of its center single face projection, all the other structures of shell fragment be symmetrical engraved structure 8.As shown in Figure 1, be fixed with solenoid 6 in the curved-surface structure 2 obverse centres ofshell fragment 1 and single face projection.

The base of being made by permeabilitymagnetic material 7 has a groove structure, andmagnet 5 and the magneticconductive board 4 that is installed inmagnet 5 tops are fixed on the centre of groove successively.Solenoid 6 is suspended at position, gap between base groove and the magnet byshell fragment 1, the upper limb opening part ofbase 7 also be fixed be used to cover whole shell fragment loam cake 3, the circulus diameter ofshell fragment 1 is less than the internal diameter ofbase 7 first steps of upper end.

After shown in Figure 1 installing, link to each other with audio frequency apparatuses such as MP3 and just can use.

Embodiment 2

As shown in Figure 4, the centre ofshell fragment 1 has the curved-surface structure 2 of a single face projection, andshell fragment 1 adopts the split moulding process to make with the curved-surface structure 2 of single face projection.

Embodiment 3

As shown in Figure 5, the centre ofshell fragment 1 has the curved-surface structure 2 of a single face projection, and its periphery also has the curved-surface structure of another single face projection, and the protrusion direction of the curved-surface structure of two projectioies is identical.

All the other structures of present embodiment are identical withembodiment 1.

The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.

Claims

1. bone-conduction speaker, comprise base assembly, shell fragment assembly and loam cake (3), loam cake (3) is arranged at shell fragment assembly top, all be installed on base assembly top edge opening part, base assembly comprises base (7), magnet (5) and magnetic conductive board (4), be provided with magnet (5) in base (7) groove, magnet (5) top is provided with magnetic conductive board (4), the shell fragment assembly comprises shell fragment (1) and coil (6), coil (6) is arranged at shell fragment (1) simultaneously, places in the groove of base (7), it is characterized in that, the shell fragment assembly also comprises at least one protruding curved-surface structure (2), and the curved-surface structure (2) of projection is arranged at the another side of shell fragment (1).

2. a kind of bone-conduction speaker according to claim 1 is characterized in that, the curved-surface structure of described projection (2) is arranged at the centre of shell fragment (1).

3. a kind of bone-conduction speaker according to claim 1 is characterized in that, the centre of described shell fragment (1) is provided with the curved-surface structure (2) of a projection, and the periphery of the curved-surface structure (2) of projection is provided with another protruding curved-surface structure.

4. a kind of bone-conduction speaker according to claim 1 is characterized in that, the curved-surface structure of described projection (2) adopts integral forming technique to make with shell fragment (1).

5. a kind of bone-conduction speaker according to claim 1 is characterized in that, the curved-surface structure of described projection (2) adopts the split moulding process to make with shell fragment (1).

6. a kind of bone-conduction speaker according to claim 1, it is characterized in that, described shell fragment (1) is connected two concentric circuluses (1-c) by the linear structure (1-b) that is no less than three, shell fragment (1) inner annular structure (1-c) is connected with at least one protruding curved-surface structure (2), and all the other structures of shell fragment (1) are the engraved structure (8) of symmetry.

7. a kind of bone-conduction speaker according to claim 1 is characterized in that, described shell fragment (1) edge has the outstanding structure (1-a) of symmetrical structure.

8. a kind of bone-conduction speaker according to claim 1 is characterized in that, the curved-surface structure (2) of described shell fragment (1) and projection is made by non-magnet material.

9. a kind of bone-conduction speaker according to claim 1 is characterized in that, described base (7) is made by permeability magnetic material.

10. a kind of loud speaker according to claim 1 is characterized in that, circulus (1-c) diameter of described shell fragment (1) is less than the internal diameter of first step of base (7) upper end.