A kind of speakerTechnical field
The present invention relates to the technical field of electro-acoustic transducer device, particularly relate to a kind of speaker.
Background technology
During speaker operation, voice coil loudspeaker voice coil friction, voice coil loudspeaker voice coil and driving between oscillation exchange, voice coil loudspeaker voice coil and airFriction between Magnet all can produce certain heat, if the heat of above-mentioned generation can not be discharged in time, it will make drive magnetProducing hot demagnetization effects, the magnetic property ultimately resulting in drive magnet reduces or demagnetization completely.
Therefore, a speaker heat dissipation problem research direction the most in the industry, current mobile terminal (comprise computer, flatPlate computer, mobile phone, wrist strap, VR) design space is more and more less, and power is increasing simultaneously, and this just requires to enter in little spaceThe diffusion of row heat is to guarantee that equipment will not affect performance because of high temperature.As it is shown in figure 1, Application No. 201510707229.3Patent disclose a kind of speaker modular structure, be provided with the fin that can dispel the heat in its ante-chamber and back cavity, the heat of back cavityAir exchange is carried out between acoustic aperture and external environment condition, with the form of convection current via fin conductive to ante-chamber and by going out of ante-chamberRealize heat radiation, reduce the accumulation of inside loudspeakers heat to a certain extent.But, disclosed in this patent, speaker module is still depositedTwo problems, one, increase radiator structure, make the overall weight of speaker module increase, deviated from speaker lightingExhibition direction；Two, need bigger space that radiator structure is set, complete heat exchange.
Therefore, it is necessary to provide a kind of speaker being applicable to super-thin electronic equipment and good heat dissipation effect.
Summary of the invention
The technical problem to be solved is: provides a kind of and is applicable to raising of super-thin electronic equipment and good heat dissipation effectSound device.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is: a kind of speaker, including voice coil loudspeaker voice coil and be located atThe vibrating diaphragm of the annular above voice coil loudspeaker voice coil, also includes barrier sheet and the stiffening plate of an annular, and the described stiffening plate of annular is along described vibrating diaphragmCircumferentially disposed, described barrier sheet is located at described stiffening plate away from the one side of voice coil loudspeaker voice coil and by the hollow of described stiffening plate of annularRegion overlay；Described barrier sheet part is fixed on described stiffening plate.
The beneficial effects of the present invention is: by arranging a barrier sheet, in utilizing the reciprocating motion of voice coil loudspeaker voice coil to promote speakerThe air in portion, forms heat exchange air-flow, is greatly improved speaker heat-sinking capability；Barrier sheet takes up room and almost can ignore, fromAnd allow speaker be more suitable for super-thin electronic equipment.
Accompanying drawing explanation
Fig. 1 is prior art loadspeaker structure explosive view；
Fig. 2 is the embodiment of the present invention one speaker schematic diagram；
Fig. 3 is the embodiment of the present invention one speaker transverse sectional view；
Fig. 4 is the schematic diagram after the embodiment of the present invention one speaker hides barrier sheet；
Fig. 5 is barrier sheet transverse sectional view in the embodiment of the present invention two；
Label declaration:
1, voice coil loudspeaker voice coil；
2, vibrating diaphragm；
3, stiffening plate；
4, barrier sheet；
41, the first thin slice；
42, the second thin slice；
43, film；
5, bonding region.
Detailed description of the invention
By describing the technology contents of the present invention in detail, being realized purpose and effect, below in conjunction with embodiment and coordinate attachedFigure is explained.
The design of most critical of the present invention is: crosses and arranges a barrier sheet, in utilizing the reciprocating motion of voice coil loudspeaker voice coil to promote speakerThe air in portion, forms heat exchange air-flow.
Refer to Fig. 2 to Fig. 5, a kind of speaker, including voice coil loudspeaker voice coil and the vibrating diaphragm of being located at annular above voice coil loudspeaker voice coil, also include resistanceCatch and the stiffening plate of an annular, circumferentially disposed along described vibrating diaphragm of described stiffening plate of annular, described barrier sheet is located at describedThe hollow region of the described stiffening plate of annular away from the one side of voice coil loudspeaker voice coil and is covered by stiffening plate；Described barrier sheet part is fixed onOn described stiffening plate.
Knowable to foregoing description, the beneficial effects of the present invention is: by arranging a barrier sheet, utilize the reciprocal fortune of voice coil loudspeaker voice coilThe dynamic air promoting inside loudspeakers, forms heat exchange air-flow, is greatly improved speaker heat-sinking capability；Barrier sheet takes up room severalCan ignore, thus allow speaker be more suitable for super-thin electronic equipment.
Further, described barrier sheet and described stiffening plate are by being adhesively fixed.
Seen from the above description, barrier sheet is connected with stiffening plate simply, convenience, is conducive to producing in enormous quantities.
Further, described barrier sheet is provided with folding line, and described barrier sheet can towards the direction away from voice coil loudspeaker voice coil around described folding lineTurnover is arranged.
Seen from the above description, barrier sheet arranges folding line, make barrier sheet turnover more smooth and easy.
Further, described stiffening plate is a rectangle frame, the side of described barrier sheet bottom surface and one of described rectangle frameThe end face on limit is adhesively fixed.
Seen from the above description, barrier sheet is less with stiffening plate bonding region, can be from stiffening plate after barrier sheet turnoverThe air capacity that dummy section passes through is big, is more beneficial for heat exchange.
Further, the hollow region of described vibrating diaphragm overlaps with the hollow region of described stiffening plate.
Seen from the above description, the hollow region of vibrating diaphragm overlaps with the hollow region of stiffening plate and is conducive to inside loudspeakers emptyThe circulation of gas.
Further, described barrier sheet includes the first thin slice, the second thin slice and film；Described first thin slice and described benefitStrong plate is adhesively fixed, and described second thin slice is connected by described film and the first thin slice.
Seen from the above description, the first thin slice, the second thin slice can use metal or other high-strength materials, it is to avoid vibrating diaphragmOccur that depression causes air return towards deviating from barrier sheet when voice coil loudspeaker voice coil direction is moved.
Further, described vibrating diaphragm is adhesively fixed with described stiffening plate.
Seen from the above description, vibrating diaphragm is connected with stiffening plate simply, convenience, is conducive to producing in enormous quantities；And when vibrating diaphragm orStiffening plate can be individually replaced vibrating diaphragm or stiffening plate when damaging, and advantageously reduces use cost.
Embodiment one
Refer to Fig. 2 to Fig. 4, embodiments of the invention one are: incorporated by reference to Fig. 2 and Fig. 3, and a kind of speaker, including voice coil loudspeaker voice coil1, being located at annular vibrating diaphragm 2, barrier sheet 4 and the stiffening plate 3 of an annular above voice coil loudspeaker voice coil 1, the described stiffening plate 3 of annular is along describedVibrating diaphragm 2 circumferentially disposed, described barrier sheet 4 is located at described stiffening plate 3 away from the one side of voice coil loudspeaker voice coil 1 and by the described reinforcement of annularThe hollow region of plate 3 covers.
Described barrier sheet 4 part is fixed on described stiffening plate 3, and in the present embodiment, barrier sheet 4 passes through with stiffening plate 3It is adhesively fixed.In other embodiments, it is fixing that barrier sheet and stiffening plate can carry out part by the way of fusion, can pass throughIt is fixing that fastening structure carries out part, and even barrier sheet can use one-body molded with stiffening plate.Further, described barrier sheet 4Being provided with folding line, described barrier sheet 4 can turn down setting around described folding line towards the direction away from voice coil loudspeaker voice coil 1, arranges folding on barrier sheet 4Trace, it is possible to make barrier sheet 4 turn down more smooth and easy.As optimization, described folding line is near the fixed area of barrier sheet 4 with stiffening plate 3Arrange.
Described barrier sheet 4 with having what certain elastic material was made, metal material and nonmetallic materials can, onlyBeing that the barrier sheet 4 using metal material to make needs ratio relatively thin, relatively thin metal barrier sheet could realize turnover, such as copperPaper tinsel, native silver etc.；Nonmetallic materials can be used to have multiple, such as rubber, plastics.
As shown in Figure 4, in the present embodiment, described stiffening plate 3 is a rectangle frame, the side of described barrier sheet 4 bottom surface withThe end face on one limit of described rectangle frame be adhesively fixed (bonding region 5, as shown in the figure).Further, the hollow of described vibrating diaphragm 2Region overlaps with the hollow region of described stiffening plate 3, so, and the beneficially circulation of inside loudspeakers air.
Described vibrating diaphragm 2 is adhesively fixed with described stiffening plate 3.
Speaker radiation processes of the present invention is as follows: when voice coil loudspeaker voice coil 1 drives vibrating diaphragm 2 towards when moving away from barrier sheet 4 direction, stopSheet 4 major part region can folding line turnover along barrier sheet 4 so that cavity phase above vibrating diaphragm 2 lower cavity and vibrating diaphragm 2Logical, vibrating diaphragm 2 continues, towards moving away from barrier sheet 4 direction, to force the air of vibrating diaphragm 2 lower cavity to flow to cavity above vibrating diaphragm 2；When voice coil loudspeaker voice coil 1 drives vibrating diaphragm 2 towards when moving near barrier sheet 4 direction, and barrier sheet 4 is fitted with stiffening plate 3, separates below vibrating diaphragm 2 emptyCavity above chamber and vibrating diaphragm 2, vibrating diaphragm 2 continues to move towards near barrier sheet 4 direction, and barrier sheet 4 extrudes the sky of cavity above vibrating diaphragm 2Gas, forces the air that is squeezed to flow out from speaker voice giving hole.So, heat just along with air from vibrating diaphragm 2 lower cavity via shakingAbove film 2, cavity is discharged.
Embodiment two
Refer to Fig. 5, embodiments of the invention two are entering of making of structure to barrier sheet on the basis of embodiment oneOne step is improved, and is with the difference of embodiment one: described barrier sheet 4 includes first thin slice the 41, second thin slice 42 and softSheet 43；Described first thin slice 41 is adhesively fixed with described stiffening plate 3, and described second thin slice 42 is thin with first by described film 43Sheet 41 connects.The effect of film 43 is similar to the effect of folding line in embodiment one, connects the first thin slice 41 and the second thin slice 42, andMake the first thin slice 41 can relatively rotate with the second thin slice 42.Described film 43 can use polyester material, polyimide materialMaking etc. the material with good bending performance, simpler, described film 43 can be exactly adhesive tape.
Barrier sheet 4 so designs and is advantageous in that: first thin slice the 41, second thin slice 42 can use the higher material of intensityMake, it is not necessary to this material possesses certain elasticity, such as copper, ferrum, PVC etc., thus avoids vibrating diaphragm 2 to move towards deviating from voice coil loudspeaker voice coil 1 directionTime dynamic, barrier sheet 4 occurs that depression causes the situation of air return to occur.
In sum, the speaker that the present invention provides, by arranging a barrier sheet, utilize the reciprocating motion of voice coil loudspeaker voice coil to promote and raiseAir within sound device, forms heat exchange air-flow, is greatly improved speaker heat-sinking capability；Barrier sheet takes up room and almost can neglectOmit, thus allow speaker be more suitable for super-thin electronic equipment；Between barrier sheet with stiffening plate, between stiffening plate and vibrating diaphragm, it is connected letterSingle, convenient, be conducive to producing in enormous quantities；Durable in use, use cost is low.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize thisThe equivalents that bright description and accompanying drawing content are made, or directly or indirectly it is used in relevant technical field, the most in like manner includeIn the scope of patent protection of the present invention.