CN202035136U - Miniature loudspeaker with linear vibration structure - Google Patents

Miniature loudspeaker with linear vibration structure Download PDF

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Publication number
CN202035136U
CN202035136U CN 201120160966 CN201120160966U CN202035136U CN 202035136 U CN202035136 U CN 202035136U CN 201120160966 CN201120160966 CN 201120160966 CN 201120160966 U CN201120160966 U CN 201120160966U CN 202035136 U CN202035136 U CN 202035136U
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China
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voice coil
microspeaker
coil loudspeaker
loudspeaker voice
yoke
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金圭东
洪振赫
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DONGGUAN BAOXING ELECTRONICS Co Ltd
RONGCHENG BAOXING ELECTRONIC CO Ltd
TIANJIN BSE ELECTRONICS CO Ltd
BO SUNG ELECTRICS Co Ltd
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DONGGUAN BAOXING ELECTRONICS Co Ltd
RONGCHENG BAOXING ELECTRONIC CO Ltd
TIANJIN BSE ELECTRONICS CO Ltd
BO SUNG ELECTRICS Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details

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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)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

The utility model relates to a miniature loudspeaker with a linear vibration structure, which supports a voice coil through two axial ends for generating linear vibration so that the total harmonic distortion can be reduced. The miniature loudspeaker comprises a vibration plate, a damping plate, a voice coil, a suspended element, a back framework, a front framework and a magnetic path, wherein a through hole is formed at the inner side of the vibration plate, the vibration plate is formed by edges, a through hole corresponding to the damping plate is formed inside the suspended element, the lower end of the voice coil is attached to the upper part of the suspended element for transmitting signals to the voice coil and realizing the vibration, the back framework supports the suspended plate, a terminal is attached onto the back framework, the front framework supports the edges of the vibration plate, a space is formed inside the front framework, the magnetic path is used for exerting the magnetic field to the voice coil, the upper end of the voice coil is positioned at the lower part of the damping plate or the vibration plate, and the lower end of the voice coil is attached to the upper part of a wiring plate, and both ends of the voice coil are supported, so the linear vibration is realized.

Description

Microspeaker with linear vibrating structure
Technical field
The utility model relates to the Microspeaker that connects voice coil loudspeaker voice coil by flexible circuit board (FPCB:Flexible Printed Circuit Board), more specifically, the two supports voice coil loudspeaker voice coil (Voice coil) that relates to by in the axial direction produces linear oscillator, thereby can reduce the Microspeaker with linear vibrating structure of total harmonic distortion (THD:Total Harmonic Distortion).
Background technology
Usually, loud speaker is to be that the vibration of air makes people can feel by ear the device of sound to be divided into electrodynamic type and electrostatic according to the principle and the method that are sound wave with electrical signal conversion with electrical signal conversion.
The main little Microspeaker of size that uses in portable terminal computer (mobile phone, DMB, PMP, PDA, electronic dictionary etc.), usually in the electrodynamic type Microspeaker, when voice coil loudspeaker voice coil flowed the drive current of audio-band, the electric field that is formed by voice coil loudspeaker voice coil made oscillating plate (diaphram) vibrate and sounds with the magnetic field interaction that is formed by magnetic circuit by terminal.At this moment, voice coil loudspeaker voice coil is by being connected with terminal (Terminal) attached to framework (Frame) back in the lead-in wire (lead wire) of oscillating plate by adhesive securement.
But, the voice coil loudspeaker voice coil and the lead-in wire that are attached to oscillating plate often break owing to the vibration of oscillating plate, and cause the intensity of oscillating plate inhomogeneous by bonding agent, produce asymmetric vibration thus, therefore in order to solve such problem points, use the Microspeaker that connects flexible circuit board (FPCB) structure of voice coil loudspeaker voice coil by flexible circuit board (FPCB) at present.
Fig. 1 is the skeleton diagram of Microspeaker in the past that connects the structure of voice coil loudspeaker voice coil by flexible circuit board, Microspeaker 10 in the past constitutes following structure: oscillating plate 12 only is made of the edge 12 that is formed with through hole at middle body, voice coil loudspeaker voice coil 16 is attached to the vibrating body 14 that is made of flexible circuit board, vibrating body 14 combines with oscillating plate 12 then, sends audio frequency by the vibration of vibrating body 14.
With reference to Fig. 1, vibrating body 14 is by the damping sheet 14-3 of terminal block 14-1 that is used to receive external signal and middle body and be connected terminal block 14-1 and the bridgeware 14-2 of damping sheet 14-3 constitutes, voice coil loudspeaker voice coil 16 is bonded in after the damping sheet 14-3 bottom according to bonding agent, the pad that is connected to the conductive pattern of damping sheet 14-3 from terminal block 14-1 through bridgeware 14-2 is connected with the two ends of voice coil loudspeaker voice coil 16, thus the electric current that flows and be applied to from the outside on voice coil loudspeaker voice coil 16.And, when streaming current on voice coil loudspeaker voice coil 16, according to and not shown permanent magnet between interaction, be attached with the damping sheet 14-3 vibration of voice coil loudspeaker voice coil 16 and send audio frequency.At this moment, damping sheet 14-3 is flexible circuit board (FPCB) basically, shown in the enlarged drawing of Fig. 1, it constitutes by bottom thin film layer 14a with by conductive layer 14b and lid thin layer 14c that copper constitutes, the elasticity of vibrating body 14 is determined by two thin layer 14a, 14c, shown in following mathematical expression 1, resonance frequency F 0Be directly proportional with the elasticity K at bridgeware 14-2 and edge, be inversely proportional to the quality (mass) of movable part (moving part).
Mathematical expression 1
Figure BDA0000062302680000021
But, damping sheet 14-3 in the past is only at the upper side and the edge 12 common support movable parts (moving parts) of voice coil loudspeaker voice coil, therefore in big amplitude or mode of resonance, be difficult to guarantee stable vibration, cause the problem that tonequality is bad and total harmonic distortion sound increases the weight of.
The utility model content
The utility model is put in view of the above problems and is researched and developed, the purpose of this utility model is the Microspeaker that provides following: the damping sheet of vibrating body is partly separated with terminal block, partly use flexible circuit board for the terminal block that needs conductive pattern, use the plate of adjusting other materials of vibration characteristics easily for damping sheet, thereby can obtain desirable tonequality easily.
Another purpose of the present utility model is the Microspeaker with linear vibrating structure and the manufacture method thereof that provide following: with the lower end of voice coil loudspeaker voice coil attached to the top of terminal block received signal, with the upper end of voice coil loudspeaker voice coil attached to the bottom of the damping sheet that separates or the two ends that oscillating plate stably supports voice coil loudspeaker voice coil, thereby form linear oscillator.
In order to reach described purpose, Microspeaker of the present utility model comprises: oscillating plate, and it is formed with through hole in the inboard, and is made of the edge; Damping sheet; Voice coil loudspeaker voice coil; The part that suspends, it is formed with the through hole corresponding with described damping sheet in inside, and the lower end of described voice coil loudspeaker voice coil is attached to the top of this part that suspends, thereby passes on signal and realize vibration to described voice coil loudspeaker voice coil; Afterframe, it is attached with terminal, and is used to support the described part that suspends; Front baffle, the edge that it supports described oscillating plate is formed with the space in inside; And magnetic circuit, it is used for applying magnetic field to described voice coil loudspeaker voice coil, and the upper end of described voice coil loudspeaker voice coil is positioned at the bottom of described damping sheet or described oscillating plate, and the two ends of described voice coil loudspeaker voice coil are supported attached to the top of described terminal block in the lower end of described voice coil loudspeaker voice coil, thereby realize linear oscillator.
Described magnetic circuit is by yoke with attached to the permanent magnet of the inboard of described yoke and the internal magnetization magnetic circuit that constitutes attached to the plate on the described permanent magnet, in the space of described voice coil loudspeaker voice coil between described yoke and described plate, the described part that suspends is by constituting as lower member: terminal block, the termination contact of itself and described afterframe; Bridgeware, it and is formed with conductive pattern between the through hole of the sidewall that is used to run through described yoke and be connected with described terminal block elasticity, thereby passes on the signal of terminal block; And the voice coil loudspeaker voice coil support, it is formed with the through hole corresponding with described damping sheet in the inboard, and the outside is connected with described bridgeware, and from the lower end of the described voice coil loudspeaker voice coil of upper support.
In order to reach described purpose, method of the present utility model comprises the steps: first step, bonding voice coil loudspeaker voice coil on the part that suspends that is made of flexible circuit board; Second step combines the part that suspends that is attached with described voice coil loudspeaker voice coil with the afterframe that is attached with terminal; Third step combines described afterframe with front baffle; The 4th step, with damping sheet attached on the oscillating plate; The 5th step combines the oscillating plate that is attached with described damping sheet and finishes sub-component with described framework; The 6th step is adhered to permanent magnet and is prepared yoke assembly on yoke; And the 7th step, described yoke assembly is embedded in the described sub-component and finishes the Microspeaker assembly.
In Microspeaker of the present utility model, by two-terminal and terminal block+/-conductive pattern and bridgeware+/-conductive pattern and when signal is applied to the two ends of voice coil loudspeaker voice coil, voice coil loudspeaker voice coil vibrates and makes damping sheet vibrate and produces sound wave, yet because the damped plate in two ends of voice coil loudspeaker voice coil and terminal block supporting, therefore form 2 node structures and produce the linear oscillator that does not have total harmonic distortion, and the loud speaker producer can freely select the material of damping sheet and thickness and modulate desirable acoustic characteristic easily.
In addition, according to the utility model, between terminal block and voice coil loudspeaker voice coil support, be formed with and be used to through hole that yoke is passed, be formed with the through hole that passes for bridgeware on yoke, the voice coil loudspeaker voice coil support is positioned at the inboard of yoke, and terminal block is positioned at the outside of yoke, and do not contact each other, thereby be easy to generate vibration, and utilize the space that forms by front baffle and voice coil loudspeaker voice coil and make the edge of oscillating plate cave in downwards, thereby can reduce the height of Microspeaker.
Description of drawings
Fig. 1 is expression connects the structure of voice coil loudspeaker voice coil by flexible circuit board the skeleton diagram of Microspeaker in the past.
Fig. 2 is expression connects the Microspeaker of voice coil loudspeaker voice coil by flexible circuit board according to the utility model the skeleton diagram of structure.
Fig. 3 is the oscillating plate shown in Figure 2 and the profile that combines of the part that suspends.
Fig. 4 is the vertical view according to the part that suspends of the present utility model.
Fig. 5 is that expression is according to the yoke of Microspeaker of the present utility model and the figure of the integrated structure of the part that suspends.
Fig. 6 is the separation stereogram according to the Microspeaker of an embodiment of the present utility model.
Fig. 7 be according to the Microspeaker of an embodiment of the present utility model in conjunction with profile.
Fig. 8 is the precedence diagram of expression according to the manufacturing step of Microspeaker of the present utility model.
Fig. 9 is the figure of expression according to the cohesive process of suspend part and the afterframe that is attached with coil of the present utility model.
Figure 10 is that expression is according to the figure of the utility model in conjunction with the process of front baffle.
The figure of Figure 11 to be expression combine oscillating plate according to the utility model with frame assembly process.
Figure 12 is the figure of expression according to yoke assembly of the present utility model.
Figure 13 is that expression is according to the figure of the utility model in conjunction with the process of yoke assembly.
Figure 14 is the Microspeaker assembly of finishing is assembled in expression according to the utility model figure.
Symbol description
100 Microspeakers; 102 terminals; 110 lids; 120 oscillating plates; 140 parts that suspend; 142 terminal blocks; 144 bridgewares; 146 voice coil loudspeaker voice coil supports; 150 damping sheets; 160 voice coil loudspeaker voice coils; 170 magnetic circuits; 172 yokes; 174 permanent magnets; 176 plates
Embodiment
By the preferred embodiment of the present utility model of following explanation, the technical task that can be well understood to the utility model more and reach by enforcement the utility model.The following examples only are used for illustrating the utility model, rather than are used to limit scope of the present utility model.
Fig. 2 is expression connects the Microspeaker of voice coil loudspeaker voice coil by flexible circuit board according to the utility model the skeleton diagram of structure, Fig. 3 is the oscillating plate shown in Figure 2 and the profile that combines of the part that suspends, Fig. 4 is the vertical view according to the part that suspends of the present utility model, and Fig. 5 is that expression is according to the yoke of Microspeaker of the present utility model and the figure of the integrated structure of the part that suspends.
With reference to Fig. 2 to Fig. 5, comprise according to the Microspeaker 100 with linear vibrating structure of the present utility model: oscillating plate 120, it is formed with through hole 120a in the inboard, and only the edge by the shape that caves in downwards constitutes; Divergence type damping sheet 150; Voice coil loudspeaker voice coil 160; Part 140 suspends, it is formed with the through hole 140a corresponding with damping sheet 150 in central interior, and is formed with and is used for the through hole 144a that combines with yoke 172, and the lower end of voice coil loudspeaker voice coil 160 is attached to the top of the part 140 that suspends, thereby pass on signal to voice coil loudspeaker voice coil 160, make and vibrate easily.
As shown in Figure 4, the part 140 that suspends is by constituting as lower member: terminal block 142, and it contacts with terminal 102; Bridgeware 144, it is formed with and is used for the through hole 144a that combines with yoke 172, terminal block 142 is connected with voice coil loudspeaker voice coil support 146 elasticity, and is formed with conductive pattern, will be communicated to voice coil loudspeaker voice coil 160 sides by the signal of terminal 102 inputs; Voice coil loudspeaker voice coil support 146, it is formed with the through hole 140a corresponding with damping sheet 150 in inside, be attached with voice coil loudspeaker voice coil 160 at the upside of this voice coil loudspeaker voice coil support 146.
In addition, the terminal block 140 of part 140 of suspending is sandwiched between the afterframe 134 and front baffle 132 that is attached with terminal 102, between the edge of oscillating plate 120 and terminal block 142, has front baffle 132, thereby the space that supporting is formed by voice coil loudspeaker voice coil 150, and utilize this space and make the edge of oscillating plate 120 cave in downwards, thereby the size of minimizing Microspeaker.
And, the part 140 that suspends is formed with the through hole 144a that passes for yoke 172 between terminal block 142 and voice coil loudspeaker voice coil support 146, on yoke 172, be formed with the through hole 172a that passes for bridgeware 144, as shown in Figure 5, voice coil loudspeaker voice coil support 146 is positioned at the inboard of yoke 172, terminal block 142 is positioned at the outside of yoke 172, and does not contact each other, therefore is easy to generate vibration.In embodiment of the present utility model, yoke 172 be one side by the square tube shape of opening, become the through hole 172a that passes for bridgeware 144 is arranged at quadrangle.
The part 140 that suspends is made of flexible circuit board (FPCB), and damping sheet 150 is made of the material different with the part 140 of suspending, thereby can adjust acoustic characteristic easily according to the material of damping sheet 150 or thickness.
Fig. 6 is the separation stereogram according to the Microspeaker of an embodiment of the present utility model, Fig. 7 be according to the Microspeaker of an embodiment of the present utility model in conjunction with profile.
As Figure 6 and Figure 7, comprise: lid 110 according to the Microspeaker 100 of an embodiment of the present utility model; Oscillating plate 120, it is formed with through hole 120a in the inboard, and is made of the edge; Divergence type damping sheet 150; Voice coil loudspeaker voice coil 160, its upper end be attached to the bottom of divergence type damping sheet 150 or oscillating plate 120, thereby be arranged in the space of magnetic circuit; The part 140 that suspends, it is formed with the through hole 140a corresponding with damping sheet 150 in inside, and the lower end of voice coil loudspeaker voice coil 160 is attached to the top of the part 140 that suspends, thereby passes on signals and realize vibration to voice coil loudspeaker voice coil 160; Afterframe 134, its supporting part 140 that suspends is attached with terminal 102 on this afterframe 134; Front baffle 132, the edge of its supporting oscillating plate 120; And magnetic circuit 170, it is used for applying magnetic field to voice coil loudspeaker voice coil 160, and wherein the upper end of voice coil loudspeaker voice coil 160 is attached to the bottom of damping sheet 150 or oscillating plate 120, and the lower end of voice coil loudspeaker voice coil 160 is attached to the top of the part 140 that suspends, stably support the two ends of voice coil loudspeaker voice coil 160, thereby realize linear oscillator.
In embodiment of the present utility model, magnetic circuit 170 is by the yoke 172 that is formed with the through hole 144a that passes for bridgeware 144 with attached to the permanent magnet 174 of the inboard of yoke 172 and the internal magnetization magnetic circuit that constitutes attached to the plate on the permanent magnet 174 176, in the space of voice coil loudspeaker voice coil 160 between yoke 172 and plate 176.
As mentioned above, the part 140 that suspends is made of terminal block 142, bridgeware 144, voice coil loudspeaker voice coil support 146, between terminal block 142 and voice coil loudspeaker voice coil support 146, be formed with the through hole 144a that passes for yoke 172, on yoke 172, be formed with the through hole 144a that passes for bridgeware 144, voice coil loudspeaker voice coil support 146 is positioned at the inboard of yoke 172, terminal block 142 is positioned at the outside of yoke 172, and does not contact each other, therefore is easy to generate vibration.
Fig. 8 is the precedence diagram of expression according to the manufacturing step of Microspeaker of the present utility model.
As shown in Figure 8, manufacture method according to Microspeaker of the present utility model is as follows: carry out operation that FPCB is combined with voice coil loudspeaker voice coil respectively and operation that oscillating plate is combined with damping sheet and yoke, permanent magnet, plate carried out after the operation of combination, its sub-component is bonded to each other and finally finishes the Microspeaker assembly.
With reference to Fig. 8, comprise the steps: the step S1 of bonding voice coil loudspeaker voice coil 160 on the part 140 that suspends that constitutes by flexible circuit board (FPCB) according to the manufacture method of Microspeaker of the present utility model; The step S2 that the part 140 that suspends that is attached with voice coil loudspeaker voice coil 160 is combined with the afterframe 134 that is attached with terminal 102; The step S3 that afterframe 134 is combined with front baffle 132; With damping sheet 140 attached to the step S4 on the oscillating plate 120; The step S5 that the oscillating plate 120 that is attached with damping sheet 140 is combined with frame assembly; The step S6 of combining cover on sub-component; The step S7 that is inverted sub-component and arranges; On yoke 172, adhere to permanent magnet 174 and plate 176 and the step S8 of preparation yoke assembly; After embedding yoke assembly in the sub-component it is hardened, thereby finish step S9, the S10 that loud speaker is assembled body.
After the part 140 that suspends that is made of FPCB arranged, voice coil loudspeaker voice coil 160 is bonded on the part 140 that suspends, and with voice coil loudspeaker voice coil 160+/-two ends are welded on S1 on the pad of the part 140 that suspends.Thereby, voice coil loudspeaker voice coil 160+side be formed on the part 140 that suspends on+conductive pattern is connected, finally be connected with+terminal, and voice coil loudspeaker voice coil 160-side be formed on the part 140 that suspends on-conductive pattern is connected, finally be connected with-terminal.
As mentioned above, the FPCB140 that is attached with voice coil loudspeaker voice coil 160 is embedded in the afterframe 134 as illustrated in fig. 9, then as described in Figure 10, bonding front baffle 132 and afterframe 134, and utilize hot and ultraviolet and (the Heat﹠amp that hardens; UV Curing: thermmohardening and UV cured) S2, S3.
In addition, as shown in figure 11, after the downside of oscillating plate 120 adheres to damping sheet 150, it is combined with frame assembly of preparing before, and combining cover 110 and carry out bondingly thereon, heat and ultraviolet ray utilized then and the (Heat﹠amp that hardens; UV Curing: thermmohardening and UV cured) S4~S7.Thereby, finish sub-component 1 time.
In addition, as shown in figure 12, on yoke 172, prepare yoke assembly with plate 176, as shown in figure 13, this yoke assembly is embedded after sub-component, finally utilize heat and ultraviolet ray and the (Heat﹠amp that hardens in conjunction with permanent magnet 174; UVCuring: thermmohardening and UV cured) S9, S10.At this moment, make the sidewall of yoke 172 by the through hole 144a between terminal block 142 and the voice coil loudspeaker voice coil support 146, make bridgeware 144 pass through the through hole 172a of yoke, thereby voice coil loudspeaker voice coil support 146 is positioned at the inboard of yoke, terminal block 142 is positioned at the outside of yoke, and do not contact each other, thereby realize combination in the mode that is easy to generate vibration.
As shown in figure 14, in the Microspeaker 100 that assembling is finished like this, by two-terminal 102 and terminal block 142+/-conductive pattern and bridgeware+/-conductive pattern and when signal is applied to the two ends of voice coil loudspeaker voice coil 160, voice coil loudspeaker voice coil 160 makes damping sheet 150 vibrations and produces sound wave when vibrating, because the damped plate 150 in the two ends of voice coil loudspeaker voice coil 160 and part 140 supportings that suspend, therefore form 2 dot structures and produce the linear oscillator that does not have total harmonic distortion, and the loud speaker producer can freely select the material of damping sheet 150 and thickness and modulate desirable acoustic characteristic easily.
As mentioned above, the utility model is illustrated with reference to the embodiment shown in the accompanying drawing, but those skilled in the art should understand that the utility model can carry out various distortion and other impartial embodiment.For example, the situation that with the magnetic circuit is the internal magnetization magnetic circuit in embodiment of the present utility model is that example is illustrated, but the utility model can also be applicable at the external magnetic circuit of the arranged outside permanent magnet of voice coil loudspeaker voice coil or in the both sides of voice coil loudspeaker voice coil and is provided with in the double-magnetic magnetic circuit etc. of permanent magnet.

Claims (10)

1. the Microspeaker with linear vibrating structure is characterized in that, this Microspeaker comprises:
Oscillating plate, it is formed with through hole in the inboard, and is made of the edge;
Damping sheet;
Voice coil loudspeaker voice coil;
The part that suspends, it is formed with the through hole corresponding with described damping sheet in inside, and the lower end of described voice coil loudspeaker voice coil is attached to the top of this part that suspends, thereby passes on signal and realize vibration to described voice coil loudspeaker voice coil;
Afterframe, it is attached with terminal, and is used to support the described part that suspends;
Front baffle, the edge that it supports described oscillating plate is formed with the space in inside; And
Magnetic circuit, it is used for applying magnetic field to described voice coil loudspeaker voice coil,
The upper end of described voice coil loudspeaker voice coil is positioned at the bottom of described damping sheet or described oscillating plate, and the two ends of described voice coil loudspeaker voice coil are supported attached to the top of described terminal block in the lower end of described voice coil loudspeaker voice coil, thereby realizes linear oscillator.
2. the Microspeaker with linear vibrating structure according to claim 1 is characterized in that,
Described magnetic circuit is by yoke with attached to the permanent magnet of the inboard of described yoke and the internal magnetization magnetic circuit that constitutes attached to the plate on the described permanent magnet, in the space of described voice coil loudspeaker voice coil between described yoke and described plate.
3. the Microspeaker with linear vibrating structure according to claim 2 is characterized in that,
The described part that suspends is by constituting as lower member:
Terminal block, the termination contact of itself and described afterframe;
Bridgeware, it and is formed with conductive pattern between the through hole that the sidewall that is used to make described yoke passes and be connected with described terminal block elasticity, thereby passes on the signal of terminal block; And
The voice coil loudspeaker voice coil support, it is formed with the through hole corresponding with described damping sheet in the inboard, and the outside is connected with described bridgeware, and by the lower end of the described voice coil loudspeaker voice coil of upper support.
4. the Microspeaker with linear vibrating structure according to claim 3 is characterized in that,
The described part that suspends is formed with between described terminal block and described voice coil loudspeaker voice coil support and is used to through hole that described yoke is passed,
On described yoke, be formed with and be used to through hole that described bridgeware is passed,
Described voice coil loudspeaker voice coil support is positioned at the inboard of yoke, and described terminal block is positioned at the outside of yoke, and does not contact each other, therefore is easy to generate vibration.
5. the Microspeaker with linear vibrating structure according to claim 4 is characterized in that,
Described yoke is the square tube shape of an opening, is formed with at Si Jiaochu to be used to through hole that bridgeware is passed.
6. the Microspeaker with linear vibrating structure according to claim 1 is characterized in that,
The described part that suspends is made of flexible circuit board, and the material of described damping sheet is different from the material of the described part that suspends.
7. the Microspeaker with linear vibrating structure according to claim 6 is characterized in that,
This Microspeaker is according to the material of described damping sheet or thickness and adjust acoustic characteristic easily.
8. the Microspeaker with linear vibrating structure according to claim 1 is characterized in that,
Described magnetic circuit is at the external magnetic circuit of the arranged outside permanent magnet of described voice coil loudspeaker voice coil or the double-magnetic magnetic circuit of permanent magnet is set in the both sides of described voice coil loudspeaker voice coil.
9. the Microspeaker with linear vibrating structure according to claim 1 is characterized in that,
Described Microspeaker also has the lid of the front that is positioned at described oscillating plate.
10. the Microspeaker with linear vibrating structure according to claim 1 is characterized in that,
The structure at the edge of described oscillating plate caves in downwards.
CN 201120160966 2010-06-09 2011-05-19 Miniature loudspeaker with linear vibration structure Expired - Fee Related CN202035136U (en)

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CN102340724A (en) 2012-02-01
TW201218788A (en) 2012-05-01
CN102340724B (en) 2014-12-03
WO2011155676A1 (en) 2011-12-15
TWI580283B (en) 2017-04-21
KR101000757B1 (en) 2010-12-13

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