CN109996158A - Superlinearity Microspeaker - Google Patents
Superlinearity Microspeaker Download PDFInfo
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- CN109996158A CN109996158A CN201811597982.1A CN201811597982A CN109996158A CN 109996158 A CN109996158 A CN 109996158A CN 201811597982 A CN201811597982 A CN 201811597982A CN 109996158 A CN109996158 A CN 109996158A
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- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
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- 239000000203 mixture Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000003490 calendering Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 230000004044 response Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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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
- H04R9/06—Loudspeakers
-
- 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
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Abstract
The present invention provides a kind of superlinearity Microspeaker, including frame, magnetic cover, magnet, pole piece, voice coil, electric metal plate, vibrating diaphragm and plane spring plate, plane spring plate is integrally made of fixed part, the voice coil support portion in fixed part and the arm of force for voice coil support portion to be connected with fixed part；Fixed part and voice coil support portion are hollow frame-shaped construction, and the size of voice coil support portion is less than fixed part；The arm of force is strip plate body；The upper surface that plane spring plate is secured by it portion is fixedly connected with vibrating diaphragm, and the lower end surface of fixed part is fixedly connected with frame；The upper surface of voice coil support portion is fixedly connected with vibrating diaphragm, and the lower end surface of voice coil support portion is fixedly connected with voice coil.The present invention can propose high power rating, amplitude and frequency response compared to the prior art, reduce audio distortion, promote superlinearity loudspeaker techniques performance, can be realized the vibration prompting function of mobile phone when in mobile phone, omit the micro machine of the common vibration of mobile phone.
Description
Technical field
The present invention relates to loudspeakers, and in particular to a kind of superlinearity Microspeaker.
Background technique
With the fast development of mobile phone technique, the conventional loudspeakers built in mobile phone gradually replaced superlinearity loudspeaker,
Superlinearity loudspeaker is because it is compared to the conventional loudspeakers of mobile phone, with total harmonic distortion is small, can bear relatively bigger function
Rate, electromagnetic energy are converted into the plurality of advantages such as sound energy efficiency height, are increasingly subject to favor in mobile phone application field.In dynamic speaker
Important intrinsic superlinearity characteristic is as shown in table 1:
Currently, the structure for the superlinearity loudspeaker being commonly used in mobile phone as shown in Figure 1, its mainly by frame 1, magnetic cover 2, magnetic
The components such as iron 3, pole piece 4, voice coil 5, electric metal plate 6 and vibrating diaphragm 7 form, and the assembly relation and working principle between each component are
The mature prior art.Current superlinearity loudspeaker, bearing power is usually 0.7~1W；Before F0Hz, unilateral amplitude is less than
0.3mm, audio distortion about 25% or so, furthermore the frequency response of loudspeaker is relatively low.It is experienced to increase mobile phone user, at present hyperline
Property loudspeaker above-mentioned associated technical parameters it still needs further improvement；Additionally, it is also well known that mobile phone common at present is not only
Have the voice prompt functions such as incoming call, short message, and be generally provided simultaneously with vibration prompt function, wherein voice prompt function passes through
Loudspeaker realizes that vibration prompt function generally realizes that the cost is relatively high for micro machine by micro-burst motor, therefore, how
Existing superlinearity loudspeaker is improved, to make it have superior technique performance, becomes industry personnel and puts forth effort research and phase
Prestige solves the problems, such as, if also, can realize the vibration of mobile phone by superlinearity loudspeaker by the structure design of superlinearity loudspeaker
Prompting function then can effectively reduce the production cost of mobile phone.
Summary of the invention
The object of the present invention is to provide a kind of new superlinearity Microspeakers, promote same type hyperline in the prior art
Property loudspeaker receiving power, amplitude and frequency response, reduce audio distortion, to promote superlinearity loudspeaker techniques performance, Neng Goushi
Existing mobile phone vibration prompting function reduces mobile phone cost so as to omit the micro machine in existing mobile phone for realizing vibrating function.
The technical scheme is that superlinearity Microspeaker of the invention, including frame, magnetic cover, magnet, pole piece,
Voice coil, electric metal plate and vibrating diaphragm, are structurally characterized in that: further include plane spring plate, above-mentioned plane spring plate by fixed part, set
It is integrally formed in the voice coil support portion in fixation portions and the arm of force for above-mentioned voice coil support portion to be connected with fixed part；
Fixation portions and voice coil support portion are hollow frame-shaped construction, and the size of voice coil support portion is less than fixed part；Above-mentioned power
Arm is strip plate body；
The upper surface that plane spring plate is secured by it portion is fixedly connected with above-mentioned vibrating diaphragm, the lower end surface of the fixed part of plane spring plate
It is fixedly connected with above-mentioned frame；Plane spring plate is fixedly connected by the upper surface of its voice coil support portion with vibrating diaphragm, plane spring plate
The lower end surface of voice coil support portion be fixedly connected with above-mentioned voice coil.
Further embodiment is: the fixed part of above-mentioned plane spring plate is by dividing upper and lower 2 first transverse slats disposed in parallel, dividing
Left and right 2 first stringer boards disposed in parallel and the connecting plates being arc-shaped set on 4 of 4 corners of fixed part integrally form；
The voice coil support portion of above-mentioned plane spring plate by point up and down 2 second transverse slats disposed in parallel, point or so disposed in parallel 2
The second stringer board of root and and 4 arc-shaped plates one compositions set on 4 corners of voice coil support portion.
Further embodiment is: the radius mean value of 4 connecting plates of fixed part of above-mentioned plane spring plate is R；Above-mentioned plane
The radius mean value of 4 arc-shaped plates of the voice coil support portion of latch plate is r；The radius of 4 arc-shaped plates of voice coil support portion is equal
The radius mean value R of 4 connecting plates of value r and fixed part is arranged according to the size relationship of r=R-R ÷ 4.
Further embodiment is: the above-mentioned arm of force includes 4 lateral arm of forces, and the lateral arm of force is straight by the first arc panel section, transverse direction
Plate section and the second arc panel section are successively integrally connected composition；4 lateral arm of forces point each setting 2 up and down, wherein being located at the 2 of upside
The root transverse direction arm of force is located at upper respectively by its first arc panel section and fixed position in the inside integrally connected of 2 connecting plates of upside
The lateral arm of force of 2 of side is respectively by its second arc panel section and voice coil support zone in the two upper lateral parts one of the second transverse slat of upside
Connection；2 lateral arm of forces positioned at downside are respectively by its first arc panel section and fixed position in the inside of 2 connecting plates of downside
Integrally connected, 2 lateral arm of forces positioned at downside are respectively by the second arc panel section and voice coil support zone in the second transverse slat of downside
Two sides portion integral connection.
Further embodiment is: the fixed part of above-mentioned plane spring plate is by dividing upper and lower 2 first transverse slats disposed in parallel, dividing
Left and right 2 first stringer boards disposed in parallel and tiltedly it is arranged set on 4 of 4 corners of fixed part and connecting plate one in a strip shape
Body composition；
The voice coil support portion of above-mentioned plane spring plate by point up and down 2 second transverse slats disposed in parallel, point or so disposed in parallel 2
The second stringer board of root and and 4 arc-shaped plates one compositions set on 4 corners of voice coil support portion；
The above-mentioned arm of force includes 2 vertical arm of forces of 2 lateral arm of forces being set down and point left and right settings, wherein is located at
The lateral arm of force of upside integrally connected on the inside of the left end of the first transverse slat of upside by its first arc panel section and fixed position；Position
The lateral arm of force in upside is integrally connected with voice coil support zone in the outside of the arc-shaped plate in upper right side by its second arc panel section
It connects；Second transverse slat of the lateral straight panel section with voice coil support zone in upside positioned at the lateral arm of force of upside is arranged in parallel；It is located at
The lateral arm of force of downside integrally connected on the inside of the right end of the first transverse slat of downside by its first arc panel section and fixed position；Position
The lateral arm of force in downside is integrally connected with voice coil support zone in the outside of the arc-shaped plate of lower left by its second arc panel section
It connects；Second transverse slat of the lateral straight panel section with voice coil support zone in downside positioned at the lateral arm of force of downside is arranged in parallel；It is above-mentioned
The vertical arm of force is integrally made of third arc panel section, vertical straight panel section and the 4th arc panel section；Wherein, positioned at the vertical force in left side
Arm is by its third arc panel section and fixed position in the left part integrally connected of the first transverse slat of downside；The vertical arm of force positioned at left side
By its 4th arc panel section and voice coil support zone in the outside integrally connected of upper left arc-shaped plate；Positioned at the vertical of right side
The arm of force is by its third arc panel section and fixed position in the right part integrally connected of the first transverse slat of upside；Vertical force positioned at right side
Arm is by its 4th arc panel section and voice coil support zone in the outside integrally connected of the arc-shaped plate of lower right.
Further embodiment is: the above-mentioned 2 vertical arm of forces every 2 totally 4 arc panel sections radius mean value be RP；It is above-mentioned
The radius mean value of 4 arc-shaped plates of voice coil support portion is r；The radius mean value r of 4 arc-shaped plates of voice coil support portion and vertical
The radius mean value RP of 4 arc panel sections of the arm of force is arranged according to the size relationship of r=RP-RP ÷ 4.
Further embodiment is: the material of above-mentioned plane spring plate is calendering copper.
The present invention has the effect of positive: (1) superlinearity Microspeaker of the invention, by existing similar loudspeaking
The plane spring plate for installing brand-new design in device additional enables to the vibrational system of loudspeaker carrying out electricity/power/sound energy conversion
In the process, guarantee the stiff piston movement of vibration, superlinearity loudspeaker receiving power will be promoted in the prior art from 0.7~1W
Unilateral amplitude before F0Hz is promoted to by being less than 0.3mm greater than 0.4mm, substantially by audio distortion about 25% or so by 1.5~3W
10% is decreased below, and the frequency response 4dB or more of loudspeaker can be improved, so as to which the technology of superlinearity loudspeaker is substantially improved
Performance.(2) superlinearity Microspeaker of the invention, by existing similar loudspeaker install additional brand-new design have line
Property vibrating function plane spring plate, be not only able to achieve the promotion of above-mentioned technical performance, while it is applied in mobile phone, work as mobile phone
Call, short message etc. whens, can be realized the vibration prompting function of mobile phone, so as to omit in existing mobile phone to realize vibrating function
The micro machine that must be set, so as to substantially save mobile phone production cost.(3) superlinearity Microspeaker of the invention, by
Realization can be facilitated by installing plane spring plate in the loudspeaker of the prior art additional, can although plane spring plate is low in cost
Speaker performance is substantially improved, omits the micro machine being arranged required for mobile phone vibration prompting function, cost performance is high.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of superlinearity loudspeaker common in the art；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is that the sectional view along A-A of Fig. 2 is exaggerated cross-sectional view to keep structural representation apparent;
Fig. 4 is configuration schematic diagram of the invention；
Fig. 5 is a kind of structural schematic diagram of embodiment of plane spring plate in Fig. 4；
Fig. 6 is the structural schematic diagram of another embodiment of plane spring plate in Fig. 4.
Appended drawing reference in above-mentioned attached drawing is as follows:
Frame 1, magnetic cover 2, magnet 3, pole piece 4, voice coil 5, electric metal plate 6 and vibrating diaphragm 7；
Plane spring plate 8, fixed part 81, the first transverse slat 81-1, the first stringer board 81-2, connecting plate 81-3, voice coil support portion 82, the
Two transverse slat 82-1, the second stringer board 82-2, arc-shaped plate 82-3, the arm of force 83, lateral arm of force 83-1, the first arc panel section 83-1-1,
Lateral straight panel section 83-1-2, the second arc panel section 83-1-3, vertical arm of force 83-2, third arc panel section 83-2-1, vertical straight panel
Section 83-2-2, the 4th arc panel section 83-2-3.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
(embodiment 1)
See Fig. 2 to Fig. 4, the superlinearity Microspeaker of the present embodiment, mainly by frame 1, magnetic cover 2, magnet 3, pole piece 4, sound
The components such as circle 5, electric metal plate 6, vibrating diaphragm 7 and plane spring plate 8 composition.The wherein glued magnet 3 of pole piece 4 glued magnetic cover 2 again
The magnetic circuit module of loudspeaker is formed, electric metal plate 6 is first glued with vibrating diaphragm 7, vibrating diaphragm 7 and plane spring plate, bracket, voice coil glue
It closes, forms the assembly module of loudspeaker, finally by this 2 module gluing, form superlinearity loudspeaker.Frame 1, magnetic cover 2, magnet 3,
Pole piece 4, voice coil 5, the structure of electric metal plate 6 and vibrating diaphragm 7 and mutual assembly relation and working principle are mature existing
Technology is not detailed.
Referring to Fig. 5, the plane spring plate 8 of the present embodiment is integrated, mainly by fixed part 81, voice coil support portion 82
With 83 one composition of the arm of force.
Fixed part 81 is integrally made of 2 first transverse slat 81-1,2 first stringer board 81-2 and 4 connecting plate 81-3, and 2
First transverse slat 81-1 points are arranged in parallel up and down, and 2 first stringer board 81-2 points or so are arranged in parallel；The both ends of every first transverse slat 81
It is integrally connected and is connect by 1 connecting plate 81-3 with each one end of 2 first stringer board 81-2, in the present embodiment, connecting plate 81-3's
Shape is arc-shaped, so that fixed part 81 forms the frame-shaped construction that a four corners are arc-shaped.According to present position
It distinguishes, the radius of 4 connecting plate 81-3 being arc-shaped positioned at lower-left, upper left, upper right, bottom right is followed successively by R1, R2, R3, R4,
The radius mean value R of 4 connecting plate 81-3 being arc-shaped=(R1+R2+R3+R4) ÷ 4.
Voice coil support portion 82 is by 2 second transverse slat 82-1,2 second stringer board 82-2 and 4 arc-shaped plate 82-3 one groups
At 2 second transverse slat 82-1 points are arranged in parallel up and down, and 2 second stringer board 82-2 points or so are arranged in parallel；Every second transverse slat
The both ends of 82-1 and each one end of 2 second stringer board 82-2 are integrally connected by 1 arc-shaped plate 82-3 and are connect, so that voice coil
Support portion 82 also forms the frame-shaped construction that a four corners are arc-shaped.The size of voice coil support portion 82 is less than fixed part 81,
Voice coil support portion 82 is set in fixed part 81.Distinguished according to present position, positioned at lower-left, upper left, upper right, bottom right 4 circular arcs
The radius of shape plate 82-3 is followed successively by r1, r2, r3, r4, radius mean value r=(r1+r2+r3+r4) ÷ of 4 arc-shaped plate 82-3
4。
It is preferred that in the present embodiment, the radius mean value r of the arc-shaped plate 82-3 of 4 of voice coil support portion 82 and solid
The radius mean value R for determining 4 connecting plate 81-3 in portion 81 is arranged according to the size relationship of r=R-R ÷ 4.
In the present embodiment, the arm of force 83 includes 4 the transverse directions arm of force 83-1, lateral arm of force 83-1 by the first arc panel section 83-1-
1, transverse direction straight panel section 83-1-2 and the second arc panel section 83-1-3 are successively integrally connected composition.In the present embodiment, 4 lateral arm of forces
83-1 point up and down each setting 2, wherein 2 lateral arm of force 83-1 for being located at upside are respectively by its first arc panel section 83-1-1 and solid
Determine the inside integrally connected that portion 81 is located at 2 connecting plate 81-3 of upside, positioned at 2 of upside lateral arm of force 83-1 respectively by its
Two arc panel section 83-1-3 and voice coil support portion 82 are located at the two upper lateral part integrally connecteds of the second transverse slat 82-1 of upside；And it is located at
The lateral straight panel section 83-1-2 of the lateral arm of force 83-1 of 2 of upside is correspondingly positioned at 2 circular arcs that voice coil support portion 82 is located at upside
The top of shape plate 82-3.2 transverse direction arm of force 83-1 positioned at downside are respectively by its first arc panel section 83-1-1 and fixed part 81
In the inside integrally connected of 2 connecting plate 81-3 of downside, 2 transverse direction arm of force 83-1 positioned at downside are respectively by the second arc panel section
83-1-3 is connect with the two sides portion integral for the second transverse slat 82-1 that voice coil support portion 82 is located at downside, and is located at 2 of downside
The lateral straight panel section 83-1-2 of lateral arm of force 83-1 is correspondingly positioned at 2 arc-shaped plate 82-3 that voice coil support portion 82 is located at downside
Lower section.
Stainless steel, copper, polyester material of calenderability etc. can be used in the material of plane spring plate 8, in the present embodiment, plane bullet
The material of spring plate 8 is preferably using calendering copper.
Still see Fig. 2 to Fig. 4, the upper surface that plane spring plate 8 is secured by it portion 81 is fixedly connected with vibrating diaphragm 7, fixed part 81
Lower end surface be fixedly connected with frame 1；Plane spring plate 8 is fixedly connected by the upper surface of its voice coil support portion 82 with vibrating diaphragm 7, sound
The lower end surface of circle support portion 82 is fixedly connected with voice coil 5.
Superlinearity Microspeaker after adding the plane spring plate 8 of the present embodiment enables to the vibration system of loudspeaker
System guarantees the stiff piston movement of vibration, superlinearity will raise in the prior art in carrying out electricity/power/sound energy conversion process
Sound device bears power and is promoted to 1.5~3W from 0.7~1W, and the unilateral amplitude before F0Hz is greater than by being promoted to less than 0.3mm
Audio distortion about 25% or so is greatly reduced to less than 10%, and the frequency response 4dB or more of loudspeaker can be improved by 0.4mm, so as to
The performance of the superlinearity loudspeaker of mobile phone is enough substantially improved.
(embodiment 2)
Referring to Fig. 6, the superlinearity Microspeaker of the present embodiment, other aspects are substantially the same manner as Example 1, and difference exists
In:
First, 4 connecting plate 81-3 of the fixed part 81 of plane spring plate 8 use angularly disposed straight panel, so that fixed
One four corners of formation of portion 81 are in the frame-shaped construction of lead angle, rather than the frame-shaped construction that four corners are arc-shaped in embodiment 1.
Second, the arm of force 83 further includes 2 vertical arm of force 83-2 of point left and right settings, and 2 transverse direction arm of force 83-1 and fixation
The link position of portion 81 and voice coil support portion 82 is different from embodiment 1.Specifically, positioned at upside lateral arm of force 83-1 by its
One arc panel section 83-1-1 and fixed part 81 are located at integrally connected on the inside of the left end of the first transverse slat 81-1 of upside；Positioned at upside
Lateral arm of force 83-1 by its second arc panel section 83-1-3 and voice coil support portion 82 be located at upper right side arc-shaped plate 82-3 outside
Side integrally connected；Lateral straight panel section 83-1-2 and voice coil support portion 82 positioned at the lateral arm of force 83-1 of upside are located at the of upside
Two transverse slat 82-1 are arranged in parallel and same length.Lateral arm of force 83-1 positioned at downside is by its first arc panel section 83-1-1
It is located at integrally connected on the inside of the right end of the first transverse slat 81-1 of downside with fixed part 81；Lateral arm of force 83-1 positioned at downside is by it
Second arc panel section 83-1-3 and voice coil support portion 82 are located at the outside integrally connected of the arc-shaped plate 82-3 of lower left；Under being located at
The lateral straight panel section 83-1-2 of the lateral arm of force 83-1 of side is located at that the second transverse slat 82-1 of downside is parallel to be set with voice coil support portion 82
It sets and same length.
Vertical arm of force 83-2 is by third arc panel section 83-2-1, vertical straight panel section 83-2-2 and the 4th arc panel section 83-2-3
One composition；Wherein, the vertical arm of force 83-2 positioned at left side is located at downside by its third arc panel section 83-2-1 and fixed part 81
The first transverse slat 81-1 left part integrally connected；Vertical arm of force 83-2 positioned at left side is by its 4th arc panel section 83-2-3 and sound
Circle support portion 82 is located at the outside integrally connected of upper left arc-shaped plate 82-3；Positioned at right side vertical arm of force 83-2 by its
Three arc panel section 83-2-1 and fixed part 81 are located at the right part integrally connected of the first transverse slat 81-1 of upside；Positioned at the vertical of right side
Arm of force 83-2 is located at the outside one of the arc-shaped plate 82-3 of lower right by its 4th arc panel section 83-2-3 and voice coil support portion 82
Body connection.
Positioned at the radius of the third arc panel section 83-2-1 and the 4th arc panel section 83-2-3 of the vertical arm of force 83-2 in left side
For R5 and R6, positioned at the radius of the 4th arc panel section 83-2-3 and third arc panel section 83-2-1 of the vertical arm of force 83-2 on right side
For R7 and R8, radius mean value RP=(R5+R6+R7+R8) ÷ 4 of 4 arc panel sections.
2 vertical arm of force 83-2's of the radius mean value r and arm of force 83 of 4 arc-shaped plates of voice coil support portion 82 above-mentioned
The radius mean value RP of 4 arc panel sections is arranged in the way of r=RP-RP ÷ 4.
Superlinearity Microspeaker after adding the plane spring plate 8 of the present embodiment, is not only able to achieve mentioning such as embodiment 1
The function of the technical performance of loudspeaker is risen, and speaker vibration system, in carrying out volume conversion process, alternating signal generates
Magnetic field and magnetostatic field interactions generate a pair of of active force and reaction force, kinetic force will drive 7 vibration radiation sound wave of vibrating diaphragm,
Realize loudspeaker function, at the same magnetic circuit part as between an oscillator and plane spring plate 8 there are an intrinsic frequency fv, when
Signal frequency can make this system resonate when meeting condition, and when mobile phone needs to vibrate when in use, mobile phone is raised to superlinearity
Sound device sends the electric signal that a frequency is fv, and plane spring plate 8 vibrates, thus realize mobile phone vibration prompting function, because
This can omit in mobile phone the commonly micro machine of vibration, save the cost.
Above embodiments are the explanations to a specific embodiment of the invention, rather than limitation of the present invention, related technology
The technical staff in field without departing from the spirit and scope of the present invention, can also make various transformation and variation and obtain
To corresponding equivalent technical solution, therefore all equivalent technical solutions should be included into patent protection model of the invention
It encloses.
Claims (7)
1. a kind of superlinearity Microspeaker, including frame, magnetic cover, magnet, pole piece, voice coil, electric metal plate and vibrating diaphragm, special
Sign is: further include plane spring plate, the plane spring plate by fixed part, the voice coil support portion in the fixed part with
And the arm of force for the voice coil support portion to be connected with fixed part integrally forms；During the fixed part and voice coil support portion be
Empty frame-shaped construction, and the size of voice coil support portion is less than fixed part；The arm of force is strip plate body；
The upper surface that plane spring plate is secured by it portion is fixedly connected with the vibrating diaphragm, the lower end surface of the fixed part of plane spring plate
It is fixedly connected with the frame；Plane spring plate is fixedly connected by the upper surface of its voice coil support portion with vibrating diaphragm, plane spring plate
The lower end surface of voice coil support portion be fixedly connected with the voice coil.
2. superlinearity Microspeaker according to claim 1, it is characterised in that: the fixed part of the plane spring plate by
Point up and down 2 first transverse slats disposed in parallel, point or so 2 first stringer boards disposed in parallel and be set to 4 corners of fixed part
4 connecting plates for being arc-shaped integrally form；
The voice coil support portion of the plane spring plate by point up and down 2 second transverse slats disposed in parallel, point or so disposed in parallel 2
The second stringer board of root and and 4 arc-shaped plates one compositions set on 4 corners of voice coil support portion.
3. superlinearity Microspeaker according to claim 2, it is characterised in that: the fixed part 4 of the plane spring plate
The radius mean value of root connecting plate is R；The radius mean value of 4 arc-shaped plates of the voice coil support portion of the plane spring plate is r；Sound
The radius mean value R of the radius mean value r of 4 arc-shaped plates of support portion and 4 connecting plates of fixed part is enclosed according to r=R-R ÷'s 4
Size relationship setting.
4. superlinearity Microspeaker according to claim 2, it is characterised in that: the arm of force includes 4 lateral arm of forces,
The lateral arm of force is successively integrally connected and is formed by the first arc panel section, lateral straight panel section and the second arc panel section；4 lateral arm of forces point
Each setting 2 up and down, wherein 2 lateral arm of forces for being located at upside are respectively by its first arc panel section and fixed position in the 2 of upside
The inside integrally connected of root connecting plate, 2 lateral arm of forces positioned at upside are respectively by its second arc panel section and voice coil support zone
In two upper lateral part integrally connecteds of the second transverse slat of upside；Positioned at 2 of the downside lateral arm of forces respectively by its first arc panel section with
Fixed position is in the inside integrally connected of 2 connecting plates of downside, and 2 lateral arm of forces positioned at downside are respectively by the second arc panel section
Two sides portion integral with voice coil support zone in the second transverse slat of downside is connect.
5. superlinearity Microspeaker according to claim 1, it is characterised in that: the fixed part of the plane spring plate by
Point up and down 2 first transverse slats disposed in parallel, point or so 2 first stringer boards disposed in parallel and be set to 4 corners of fixed part
4 tiltedly settings and connecting plate in a strip shape integrally forms；
The voice coil support portion of the plane spring plate by point up and down 2 second transverse slats disposed in parallel, point or so disposed in parallel 2
The second stringer board of root and and 4 arc-shaped plates one compositions set on 4 corners of voice coil support portion；
The arm of force includes 2 vertical arm of forces of 2 lateral arm of forces being set down and point left and right settings, wherein is located at
The lateral arm of force of upside integrally connected on the inside of the left end of the first transverse slat of upside by its first arc panel section and fixed position；Position
The lateral arm of force in upside is integrally connected with voice coil support zone in the outside of the arc-shaped plate in upper right side by its second arc panel section
It connects；Second transverse slat of the lateral straight panel section with voice coil support zone in upside positioned at the lateral arm of force of upside is arranged in parallel；It is located at
The lateral arm of force of downside integrally connected on the inside of the right end of the first transverse slat of downside by its first arc panel section and fixed position；Position
The lateral arm of force in downside is integrally connected with voice coil support zone in the outside of the arc-shaped plate of lower left by its second arc panel section
It connects；Second transverse slat of the lateral straight panel section with voice coil support zone in downside positioned at the lateral arm of force of downside is arranged in parallel；It is described
The vertical arm of force is integrally made of third arc panel section, vertical straight panel section and the 4th arc panel section；Wherein, positioned at the vertical force in left side
Arm is by its third arc panel section and fixed position in the left part integrally connected of the first transverse slat of downside；The vertical arm of force positioned at left side
By its 4th arc panel section and voice coil support zone in the outside integrally connected of upper left arc-shaped plate；Positioned at the vertical of right side
The arm of force is by its third arc panel section and fixed position in the right part integrally connected of the first transverse slat of upside；Vertical force positioned at right side
Arm is by its 4th arc panel section and voice coil support zone in the outside integrally connected of the arc-shaped plate of lower right.
6. superlinearity Microspeaker according to claim 5, it is characterised in that: described 2 vertical the arm of force every 2 altogether
The radius mean value of 4 arc panel sections is RP；The radius mean value of 4 arc-shaped plates of the voice coil support portion is r；Voice coil support portion
4 arc-shaped plates radius mean value r and 4 arc panel sections of the vertical arm of force radius mean value RP according to r=RP-RP ÷ 4 ruler
Very little relationship setting.
7. any superlinearity Microspeaker according to claim 1~6, it is characterised in that: the plane spring plate
Material is calendering copper.
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| CN201811597982.1A CN109996158A (en) | 2018-12-26 | 2018-12-26 | Superlinearity Microspeaker |
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| CN201811597982.1A CN109996158A (en) | 2018-12-26 | 2018-12-26 | Superlinearity Microspeaker |
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