CN102273226A - Multifunctional microspeaker - Google Patents
Multifunctional microspeaker Download PDFInfo
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- CN102273226A CN102273226A CN2011800001225A CN201180000122A CN102273226A CN 102273226 A CN102273226 A CN 102273226A CN 2011800001225 A CN2011800001225 A CN 2011800001225A CN 201180000122 A CN201180000122 A CN 201180000122A CN 102273226 A CN102273226 A CN 102273226A
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- suspends
- fixed
- voice coil
- elastomer
- micro speaker
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- 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
- H04R9/06—Loudspeakers
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- 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
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- 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
- H04R9/04—Construction, mounting, or centering of coil
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/03—Transducers capable of generating both sound as well as tactile vibration, e.g. as used in cellular phones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/07—Suspension between moving magnetic core and housing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The present invention relates to a multifunctional microspeaker. The multifunctional microspeaker of the present invention comprises: a frame; a diaphragm, the outer perimeter of which is fixed to the frame; a voice coil fixed to the lower surface of the diaphragm; a first suspension which has elasticity, and the outer perimeter of which is fixed to the frame; a yoke fixed to the first suspension; a first permanent magnet fixed to the inner bottom surface of the yoke; a plate fixed to the upper surface of the first permanent magnet; a second suspension which has elasticity, which is spaced apart below the first suspension, and which has a support portion, one end of which is fixed to the frame, and a protruding portion protruding from the support portion toward the first suspension; ; and a second magnet accommodated in the protruding portion and fixed to the lower surface of the second suspension.
Description
Technical field
The present invention relates to multi-function micro speaker, especially, relate to such multi-function micro speaker: by improving structure, make, absorb and disperse to convey to the impact of the part that suspends when multi-function micro speaker is applied to external impact.
Background technology
Usually, loud speaker is to be the device of voice signal with electrical signal conversion.Microspeaker is mainly to be used in for example miniature loudspeaker in the portable audio device that significantly increases of demand in recent years such as mobile phone, notebook computer, MP3 player, earphone of the little audio frequency apparatus of size.
But the mobile communication terminal major part that possesses the electronic product in recent years, particularly mobile phone and so on of Microspeaker constitutes the structure that is used to produce vibration signal.Such vibration signal is used for replacing the incoming telephone signal sound or is confirming input state in the touch-screen of the direct input information of picture.
Multi-function micro speaker according to the present invention is when possessing the basic function that produces audio frequency, also possesses the loud speaker of the structure that is used to produce vibration signal.Multi-function micro speaker is called as multi-functional transmission device or multifunction electronic audio converter etc.
The structure of multi-function micro speaker in the past for obtaining to vibrate by the oscillator resonance that makes by disc spring supporting.In so general multi-function micro speaker in the past, has voice coil loudspeaker voice coil having and be called on the magnetic circuit of a side of oscillating plate of the plate that quivers, output audio when applying voice signal with electric current to this voice coil loudspeaker voice coil produces vibration on vibrating body when applying vibration signal with electric current to this voice coil loudspeaker voice coil.
Fig. 1 represents an example of multi-function micro speaker in the past.With reference to Fig. 1, multi-function micro speaker 100 comprises: framework 110, sounding with oscillating plate 101, voice coil loudspeaker voice coil 102, with upper and lower to the 1st permanent magnet 104 that disposes the N utmost point and the S utmost point, plate 103, yoke the 105, the 1st part the 107, the 2nd part the 108, the 2nd magnet 109 that suspends that suspends.Apply electric current by lead-in wire (not shown) to voice coil loudspeaker voice coil 102.
The upper end of described voice coil loudspeaker voice coil 102 be fixed on oscillating plate 101 below.Voice coil loudspeaker voice coil 102 can be reeled to the mode that the direction vertical with the magnetic line of force flows with electric current.Plate 103 be fixed in the 1st permanent magnet 104 above, the 1st permanent magnet 104 is fixed in the bottom surface of yoke 105, described yoke 105 is fixed in the 1st part 107 that suspends.The 1st suspends part 107 by described framework 110 elastic bearings.Described yoke the 105, the 1st permanent magnet 104 and plate 103 form the magnetic circuit of loud speaker.
The described the 2nd suspend part 108 to the 1st suspend part 107 the below partition distance and dispose, its peripheral part is by framework 110 elastic bearings, the 2nd magnet 109 be fixed in the 2nd suspend part 108 below.
Below, the action of the multi-function micro speaker 100 of structure describes to having as above.When voice coil loudspeaker voice coil 102 applies the electric current that is suitable for audio frequency, produce electromagnetic force by lead-in wire (not shown) on voice coil loudspeaker voice coil 102, vibration takes place and output audio in oscillating plate 101 thus.
That is, the magnetic line of force that sends from the N utmost point of the 1st permanent magnet 104 forms magnetic field towards the S utmost point of the 1st permanent magnet 104 by plate 103, voice coil loudspeaker voice coil 102 and yoke 105 successively.At this moment, produce interaction and produce Lorentz force (Lorentz force) with the magnetic flux that is produced by magnetic circuit when on voice coil loudspeaker voice coil 102 electromagnetic force taking place, the oscillating plate 101 that is fixed in voice coil loudspeaker voice coil 102 vibrates, thereby realizes the loudspeaker function of output audio.
In addition, when voice coil loudspeaker voice coil 102 applied the electric current (common low-frequency current) that is suitable for vibrating, the 1st permanent magnet the 104, the 2nd magnet the 109, the 1st part 107 and the 2nd part 108 that suspends that suspends moved up and down and produces vibration.
Fig. 2 represents to be used in the suspend stereogram of part 107 of the 1st in the multi-function micro speaker in the past.The suspend peripheral part of part 107 of framework 110 supporting the described the 1st is formed with a plurality of slotted hole 107a in the inboard of the part that combines with framework 110.The effect of described slotted hole 107a is to make the 1st to suspend part 107 in above-below direction strain successfully.Symbol among Fig. 2 " A " expression be the part that deforms easily by vibration and external impact.
Being used in the part that suspends in the multi-function micro speaker in the past (particularly, the 1st suspend part 107) is to be used for making multi-function micro speaker that the necessary parts of vibration take place.Vibration force be can increase or lower by the described part that suspends, vibration force and resonance frequency decided according to the thickness and the different shape of the part that suspends.In order to obtain big vibration force and little resonance frequency, adopt the part that suspends that constitutes by thin material.
Like this suspend part when multi-function micro speaker moves with sustained vibration, therefore, and relatively comprise the relative external impact factors of instability therewith to being quick on the draw of external impact.Particularly, if apply excessive external impact, then described " A " zone is deformed and is disrumpent feelings and cause fatal damage.Therefore, the manufacturing of the part that suspends that is protected in needing externally to impact is one of the item that will consider emphatically in this area.
In externally impacting, protect multi-function micro speaker in the past, adopted following method.
First method is the method that increases the quantity of the part that suspends, and second method is to strengthen the method for the thickness of the part that suspends.Under the former situation, along with the suspend quantity of part of increase, exist with other component parts between complex structure, the problem of expense rising.In the latter case, because the enlarged in thickness of part of suspending, therefore be restricted aspect big vibration force and the little resonance frequency realizing.Therefore, in the past in order all to have defective the method that adopts from external impact protection multi-function micro speaker.
Summary of the invention
The present invention puts in view of the above problems and researches and develops, and the object of the present invention is to provide a kind ofly can absorb when multi-function micro speaker applies external impact and disperse to convey to the multi-function micro speaker of impact of part of suspending.
In order to achieve the above object, multi-function micro speaker of the present invention is characterised in that, comprising: framework; Peripheral part is fixed on the oscillating plate on the described framework; Be fixed in the following voice coil loudspeaker voice coil of described oscillating plate; The 1st part that suspends, it has elasticity and is formed with a plurality of the 1st slotted holes, and the 1st peripheral part that suspends part is fixed on the described framework; Be fixed on the described the 1st yoke (yoke) that suspends on the part; Be fixed in the 1st permanent magnet of the inner bottom surface of described yoke; Be fixed in the top plate (plate) of described the 1st permanent magnet; And the 1st elastomer that combines with described a plurality of the 1st slotted holes.
In addition, preferably, on described the 1st elastomer, be formed with the 1st embedded groove of the inner peripheral surface embedding that makes described the 1st slotted hole.
In addition, preferably, described the 1st elastomer is a rubber.
In addition, preferably, described multi-function micro speaker comprises: the 2nd part that suspends, and it has elasticity and is formed with a plurality of the 2nd slotted holes, and the 2nd suspend part from the described the 1st part partition distance and disposing downwards that suspends, and peripheral part is fixed on the described framework; And be fixed in the described the 2nd the 2nd following magnet that suspends part.
In addition, preferably, described multi-function micro speaker comprises the 2nd elastomer that combines with described the 2nd slotted hole, is formed with the 2nd embedded groove of the inner peripheral surface embedding that makes described the 2nd slotted hole on described the 2nd elastomer.
According to multi-function micro speaker of the present invention,, also compare safety even therefore external impact takes place, and increase the service life owing to the elastomer that combines with the part that suspends absorbs and the dispersion external impact.
In addition, by adjusting the elastomeric material combine with the part that suspends or thickness etc., can adjust the vibration force and the resonance frequency of the part that suspends.
Description of drawings
Fig. 1 is the summary profile of multi-function micro speaker in the past.
Fig. 2 is the employed in figure 1 the 1st stereogram that suspends part.
Fig. 3 is the summary profile of multi-function micro speaker according to an embodiment of the invention.
Fig. 4 chooses the wanting portion of Fig. 3 and the stereogram represented.
Fig. 5 is the profile under the bonding state of Fig. 4.
Fig. 6 is the elastomeric figure that is adopted in the multi-function micro speaker that is illustrated in according to other embodiments of the invention.
Symbol description
10 frameworks; 20 oscillating plates; 30 voice coil loudspeaker voice coils; 40 the 1st parts that suspend; 41 the 1st slotted holes; 42 protrusions; 50 yokes; 51 accommodating grooves; 60 the 1st permanent magnets; 70 plates; 80 the 2nd parts that suspend; 81 the 2nd slotted holes; 90 the 2nd magnet; 120 the 1st elastomers; 121 the 1st embedded grooves; 130 the 2nd elastomers; 131 the 2nd embedded grooves
Embodiment
Below, describe in detail according to a preferred embodiment of the invention with reference to accompanying drawing.
Fig. 3 is the summary profile of multi-function micro speaker according to an embodiment of the invention, and Fig. 4 chooses the wanting portion of Fig. 3 and the stereogram represented, and Fig. 5 is the profile under the bonding state of Fig. 4.
The multi-function micro speaker 200 of present embodiment possesses audio frequency generation function and signal vibration generation function simultaneously as the loud speaker that mainly is used in the mini-plants such as mobile communication terminal such as mobile phone or PMP.
With reference to Fig. 3, comprise according to the multi-function micro speaker 200 of present embodiment: framework 10; Oscillating plate (diaphragm) 20; Voice coil loudspeaker voice coil 30; The 1st part 40 that suspends; Yoke (yoke) 50; The 1st permanent magnet 60; Plate 70; The 1st elastomer 120.
Described framework 10 is made of plastics usually, and this framework 10 forms the profile of loud speaker, within it the fixing various component parts of portion.Framework 10 comprises upper frame 12 and lower frame 13 and bottom surface cover 11.Be combined with upper cap parts 14 on the top of upper frame 12.Under the situation of present embodiment, framework 10 forms drum on the whole.But in other embodiments, the profile in the cross section of framework can be quadrangle shape, elliptical shape or trade shape.Under each situation, internal part also can suitably be out of shape according to its external shape.
The peripheral part of oscillating plate 20 is fixed on the top of upper frame 12.Oscillating plate 20 is circular, is made of macromolecular compound usually.Oscillating plate 20 carries out up-down vibration and produces the acoustic pressure that the people can hear.
In the present embodiment, described oscillating plate 20 is a benchmark with the boundary member in conjunction with the upper end of voice coil loudspeaker voice coil 30, is divided into the Outboard Sections that is positioned at inboard inside part and is positioned at the outside.Inside part and Outboard Sections form arch (dome) respectively, and boundary member is average.Outboard Sections also is called as seamed edge (edge).Oscillating plate 20 can carry out various distortion on concrete shape, material and thickness.
Described voice coil loudspeaker voice coil 30 be fixed in oscillating plate 20 below.The upper end of voice coil loudspeaker voice coil 30 be fixed in oscillating plate 20 boundary member below.Voice coil loudspeaker voice coil 30 can be reeled and constitutes with electric current to the mode that the direction vertical with the magnetic line of force flows.Voice coil loudspeaker voice coil 30 is electrically connected with terminal (not shown) on the framework 10.Voice coil loudspeaker voice coil 30 obtains electric current by terminal from the outside.
The bottom of voice coil loudspeaker voice coil 30 is positioned at upper and lower to the 1st permanent magnet 60 of combination and the sidewall mezzanine space of plate 70 and yoke 50.Such mezzanine space magnetic gap that is otherwise known as.Flow audio signals when use high-frequency current at voice coil loudspeaker voice coil 30, according to the correlation between the magnetic field that produces by the 1st permanent magnet 60, voice coil loudspeaker voice coil 30 towards upper and lower to mobile.Thus, the oscillating plate 20 that combines with voice coil loudspeaker voice coil 30 vibrates and the generation audio frequency.
As shown in Figures 3 and 4, the described the 1st part 40 that suspends has elasticity, and its peripheral part is fixed on the framework 10.Suspend the described the 1st and to be formed with a plurality of the 1st slotted holes 41 on the part 40.In the present embodiment, along the 1st suspend part 40 the edge circumferentially be formed with 4 described the 1st slotted holes 41.Certainly, the quantity of the 1st slotted hole 41 and shape can be carried out various distortion.
The part that suspends can be described as elastomeric element, spring or disc spring etc.So-called elasticity is meant that volume and shape change when the object application of force from the outside, and reverts to the character of original shape when this power of releasing, and is divided into the volume elasticity and the elasticity of shape according to mode of deformation.In the present invention, the 1st suspend part 40 is main relevant with the elasticity of shape.
In the present embodiment, the 1st suspend part 40 is disk shape, and for corresponding with the shape of framework 10 and form disc-shape.The 1st suspend part 40 is formed by sheet metal manufacturings such as bronze.In addition, in other embodiments, the 1st suspends part 40 can be by the manufacturing of high polymer elastic material.In addition, be fixed with yoke 50 at the 1st mid portion that suspends part 40.
In the present embodiment, described yoke 50 be fixed in the 1st suspend part 40 above.Be combined with the 1st permanent magnet 60 in the bottom of yoke 50.The bottom centre of described yoke 50 have be positioned at yoke 50 below the accommodating groove 51 that combines of the 1st protrusion 42 that suspends part 40.Described accommodating groove 51 forms the shape corresponding shape with protrusion 42, makes protrusion 42 to combine with described accommodating groove 51.
In the present embodiment, protrusion 42 is a drum, and for corresponding with this shape, accommodating groove 51 also forms cylindrical shape.The size of the diameter of accommodating groove 51 is preferably formed to the diameter than the external diameter of protrusion 42 is big slightly, also can form firm combination so that protrusion 42 only sandwiches in the accommodating groove 51 under the situation of not utilizing bonding agent in addition.By protrusion 42 is sandwiched in the accommodating groove 51, can realize position combination accurately each other.
Even described protrusion 42 also can maintain certain position with respect to the 1st position that suspends part 40 with yoke 50 all the time under the situation that is applied to external impact to multi-function micro speaker 200.Thereby, prevent that yoke 50 is with respect to the 1st phenomenon of part 40 to lopsidedness that suspend.When yoke 50 during to a side shifting, the bottom of yoke 50 is stuck in the 1st and suspends in the 1st slotted hole 41 of part 40 and may cause the 1st part 40 breakages that suspend, but described protrusion 42 can be prevented trouble before it happens such problem.
Described the 1st permanent magnet 60 is fixed in the inner bottom surface of yoke 50.The 1st permanent magnet 60 combines the bottom surface of being fixed in yoke 50 to constitute concentric mode with yoke 50 by methods such as bonding agents.For corresponding with the shape of yoke 50, the 1st permanent magnet 60 forms disc-shape.
Described plate 70 be fixed in the 1st permanent magnet 60 above.Plate 70 is made of the good material of magnetic, and has and the 1st permanent magnet 60 diameter much at one.
The 1st permanent magnet 60 and plate 70 are fixed with the sidewall partition distance of yoke 50.And the medial surface of the sidewall of the lateral surface of the 1st permanent magnet 60 and plate 70 yoke 50 opposite each other between be formed with the space, the bottom of voice coil loudspeaker voice coil 30 is positioned at this space.
In addition, the 1st permanent magnet 60, plate 70 and yoke 50 constitute the magnetic circuit of loud speaker.That is, the magnetic flux that is produced by the 1st permanent magnet 60 forms the flux path (path) that enters yoke 50 through plate 70.
Described the 1st elastomer 120 is provided with for protection multi-function micro speaker 200 in externally impacting.Described the 1st elastomer 120 is the elastomers that are made of synthetic resin, adopts rubber in the present embodiment.As shown in Figure 4, on described the 1st elastomer 120, be formed with the 1st embedded groove 121 of the inner peripheral surface embedding that makes the 1st slotted hole 41.As shown in Figure 5, the section of described the 1st elastomer 120 forms and the similar shape of English alphabet " I " on the whole, and the inner peripheral surface of described the 1st slotted hole 41 embeds in described the 1st embedded groove 121.
When multi-function micro speaker 200 was applied to external impact, described the 1st elastomer 120 absorbed its external impact and alleviates and be applied to the 1st impact that suspends part 40.In addition, form a plurality of and the 1st the 1st elastomer 120 that part 40 combines that suspends, therefore the effect of effective dispersion external impact is provided.In the present embodiment, described the 1st elastomer 120 combines with described the 1st slotted hole 41 respectively.That is, all be combined with described the 1st elastomer 120 on 4 the 1st slotted holes 41.Can increase and decrease the quantity of the 1st elastomer 120 with the quantity of described the 1st slotted hole 41 accordingly.
In addition, the material by changing the 1st elastomer 120 and thickness etc. can be adjusted the 1st vibration force and the resonance frequency that suspends part 40.In the ordinary course of things, form the 1st thickness that suspends part 40 thinner in order to obtain big vibration force and little resonance frequency, but in multi-function micro speaker 200 according to the present invention, when making the 1st to suspend the thin thickness of part 40, also material by changing the 1st elastomer 120 or thickness wait and are adjusted into desirable vibration force and resonance frequency.
Described the 1st elastomer 120 can be when the 1st suspends part 40 injection is one with the described the 1st part 40 injection mouldings that suspend, and perhaps makes separately after the 1st elastomer 120, it is sandwiched the described the 1st suspend in the part 40 and carry out combination.
In addition, multi-function micro speaker 200 according to the present invention possesses the 2nd suspend part 80 and the 2nd magnet 90 and the 2nd elastomer 130.
As shown in Figure 3, the described the 2nd suspends part 80 from the 1st part 40 partition distance and disposing downwards that suspends, and the 2nd part 80 that suspends is made of the rubber-like material.The described the 2nd peripheral part that suspends part 80 is fixed on the framework 10, and identical with the 1st part 40 that suspends, and is formed with a plurality of the 2nd slotted holes 81.In the present embodiment, described the 2nd slotted hole 81 along the 2nd suspend part 80 the edge circumferentially be formed with 4.Certainly, the quantity of the 2nd slotted hole 81 and shape variable shape are various.
In the present embodiment, the 2nd suspend part 80 by constituting with the 1st identical material of part 40 that suspends.Certainly, in other embodiments, the 1st the suspend material of part 80 of part 40 and the 2nd that suspends can differ from one another.
Described the 2nd magnet 90 be fixed in the 2nd suspend part 80 below.Therefore, suspend part 40, yoke 50 partition distance and dispose of the 2nd magnet 90 and the 1st.The 2nd magnet 90 can be permanent magnet, also can be electromagnet.
Described the 2nd magnet 90 and the 2nd suspends part 80 as the oscillator that produces vibration signal.In addition, interconnect by magnetic field with the magnetic circuit that constitutes by the 1st permanent magnet 60 and plate 70 and yoke 50 by suspend oscillator that part 80 constitutes of the 2nd magnet 90 and the 2nd.
Described the 2nd elastomer 130 is identical with the 1st elastomer 120, forms for protection multi-function micro speaker 200 from external impact.
Shown in the enlarged of Fig. 3, suspend the 2nd slotted hole 81 of part 80 of described the 2nd elastomer 130 and the 2nd combines.On described the 2nd elastomer 130, be formed with the 2nd embedded groove 131 of the inner peripheral surface embedding that makes the 2nd slotted hole 81.Described the 2nd elastomer 130 is the elastomers that are made of synthetic resin, adopts rubber in the present embodiment.Described the 2nd elastomer 130 also respectively be formed on the 2nd a plurality of the 2nd slotted holes 81 that suspend on the part 80 and combine.The concrete structure of described the 2nd elastomer 130 and described the 1st elastomer 120 are similar, therefore specify in this omission.
Below, the effect and the effect of the multi-function micro speaker 200 of structure describe to having as above.
In the multi-function micro speaker 200 of present embodiment, by absorbing and disperse external impact with the 1st suspend the 1st elastomer 120 that part 80 combines and the 2nd elastomer 130 of part 40 and the 2nd that suspend, thereby the Stability Analysis of Structures of keeping multi-function micro speaker 200 can be provided, and keep the effect of good product quality.And, also can be provided at the effect in the useful life that prolongs multi-function micro speaker 200 to a great extent.
In addition, the 1st elastomer 120 and the 2nd elastomer 130 can also be adjusted the 1st suspend part 40 and the 2nd the suspend vibration force and the resonance frequency of part 80 except having the function that absorbs and disperse external impact.In order to realize with the 1st of big vibration force and the action of little resonance frequency part 40 and the 2nd part 80 that suspends that suspends, make the 1st the suspend material that changes the 1st elastomer 120 and the 2nd elastomer 130 when part 40 and the 2nd suspends the thin thickness of part 80 or thickness etc., thereby pay desirable vibration force and resonance frequency.
In addition, Fig. 6 is the figure of the elastomeric example that adopted in the multi-function micro speaker that is illustrated in according to other embodiments of the invention.In Fig. 6, for paying identical Reference numeral, and omit its detailed description with the component parts that Fig. 4 carries out identical function.
Such as in " background technology " record, that adopts in multi-function micro speaker 100 in the past the 1st suspends part 107 in the easiest generation strain in " A " zone.Usually, the long hole shape that is formed at the part that suspends becomes a plurality of, and because such slotted hole length is long, therefore from the center of the part that suspends when radial direction is looked, the zone that formation overlaps each other.Strain takes place easily in such overlapping areas, and its overlapping region being quick on the draw to external impact.
Therefore, in Fig. 6, be primarily characterized in that, in the zone (corresponding to " A " zone of Fig. 2) of part 40 that the 1st of outside impact-response sensitivity is suspended in conjunction with elastomer 120 '.As shown in Figure 6, though described elastomer 120 ' combine with the 1st the 1st slotted hole 41 that suspends part 40 respectively, only with a part of regional combination of each the 1st slotted hole 41.Like this,, also can adequately protect the effect similar effects in the time of therefore can obtaining and be incorporated into the whole zone of the 1st slotted hole 41 to the suspend zone of part 40 of the 1st of outside impact-response sensitivity even only combine with a part is regional.
Certainly, in the embodiment of Fig. 6, illustrate described elastomer 120 ' with the 1st situation that part 40 combines that suspends, but also can combine in an identical manner with the 2nd the 2nd slotted hole 81 that suspends part 80.
More than, describe the preferred embodiments of the present invention in detail, but the invention is not restricted to the foregoing description, in the scope that does not break away from category of the present invention, can carry out various deformation.Therefore, the real technical protection scope of the present invention should be defined by the technological thought of appended claims of the present invention.
Claims (5)
1. multi-function micro speaker is characterized in that comprising:
Framework;
Peripheral part is fixed on the oscillating plate on the described framework;
Be fixed in the following voice coil loudspeaker voice coil of described oscillating plate;
The 1st part that suspends, it has elasticity and is formed with a plurality of the 1st slotted holes, and the 1st peripheral part that suspends part is fixed on the described framework;
Be fixed on the described the 1st yoke that suspends on the part;
Be fixed in the 1st permanent magnet of the inner bottom surface of described yoke;
Be fixed in the top plate of described the 1st permanent magnet; And
The 1st elastomer that combines with described a plurality of the 1st slotted holes.
2. multi-function micro speaker according to claim 1 is characterized in that,
On described the 1st elastomer, be formed with the 1st embedded groove of the inner peripheral surface embedding that makes described the 1st slotted hole.
3. multi-function micro speaker according to claim 1 is characterized in that,
Described the 1st elastomer is a rubber.
4. multi-function micro speaker according to claim 1 is characterized in that,
Described multi-function micro speaker comprises: the 2nd part that suspends, and it has elasticity and is formed with a plurality of the 2nd slotted holes, and the 2nd suspend part from the described the 1st part partition distance and disposing downwards that suspends, and peripheral part is fixed on the described framework; And be fixed in the described the 2nd the 2nd following magnet that suspends part.
5. multi-function micro speaker according to claim 4 is characterized in that,
Described multi-function micro speaker comprises the 2nd elastomer that combines with described the 2nd slotted hole,
On described the 2nd elastomer, be formed with the 2nd embedded groove of the inner peripheral surface embedding that makes described the 2nd slotted hole.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20-2010-0000080 | 2010-01-06 | ||
| KR2020100000080U KR200454024Y1 (en) | 2010-01-06 | 2010-01-06 | Multifunction micro speaker |
| PCT/KR2011/000046 WO2011083959A2 (en) | 2010-01-06 | 2011-01-05 | Multifunctional microspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102273226A true CN102273226A (en) | 2011-12-07 |
Family
ID=44305932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800001225A Pending CN102273226A (en) | 2010-01-06 | 2011-01-05 | Multifunctional microspeaker |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR200454024Y1 (en) |
| CN (1) | CN102273226A (en) |
| WO (1) | WO2011083959A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106954148A (en) * | 2017-03-20 | 2017-07-14 | 歌尔股份有限公司 | A kind of sound-producing device and electronic equipment |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101872689B1 (en) | 2016-02-18 | 2018-06-29 | 주식회사 예일전자 | Portable electronic device and vibration output device including improved structure |
| WO2017142333A1 (en) * | 2016-02-18 | 2017-08-24 | 주식회사 예일전자 | Vibration output device having improved structure and portable electronic device comprising same |
| CN109362006A (en) * | 2018-10-18 | 2019-02-19 | 宁波桑德伟尔电子科技有限公司 | A kind of high pitch driving head with reduction vibration amplitude |
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| KR200455084Y1 (en) * | 2009-09-04 | 2011-08-16 | 주식회사 비에스이 | Multifunction micro speaker |
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- 2011-01-05 WO PCT/KR2011/000046 patent/WO2011083959A2/en active Application Filing
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| CN1399489A (en) * | 2001-07-25 | 2003-02-26 | 松下电器产业株式会社 | Electric-mechanical-acoustic transducer and mobile communicator with the transducer |
| JP2008244710A (en) * | 2007-03-27 | 2008-10-09 | Citizen Electronics Co Ltd | Electroacoustic transducer |
| KR20090049176A (en) * | 2007-11-13 | 2009-05-18 | 에스텍 주식회사 | Multi-function speaker |
| CN101483799A (en) * | 2008-01-11 | 2009-07-15 | 株式会社爱信 | Electric-machinical vibration converter for somatosensory sound apparatus |
| KR100902120B1 (en) * | 2008-10-15 | 2009-06-09 | 주식회사 비에스이 | Multi function speaker |
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| CN106954148A (en) * | 2017-03-20 | 2017-07-14 | 歌尔股份有限公司 | A kind of sound-producing device and electronic equipment |
| WO2018170940A1 (en) * | 2017-03-20 | 2018-09-27 | 歌尔股份有限公司 | Sound-generating device and electronic apparatus |
| CN106954148B (en) * | 2017-03-20 | 2018-12-14 | 歌尔股份有限公司 | A kind of sounding device and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| KR200454024Y1 (en) | 2011-06-09 |
| WO2011083959A2 (en) | 2011-07-14 |
| WO2011083959A3 (en) | 2011-11-03 |
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