CN104320743B - Small speaker devices - Google Patents
Small speaker devices Download PDFInfo
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- CN104320743B CN104320743B CN201410659557.6A CN201410659557A CN104320743B CN 104320743 B CN104320743 B CN 104320743B CN 201410659557 A CN201410659557 A CN 201410659557A CN 104320743 B CN104320743 B CN 104320743B
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- voice coil
- loudspeaker voice
- coil loudspeaker
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Abstract
The present invention provides a kind of small speaker devices, the device avoids the interference for the lead-out wire (30A) and oscillating plate (2) being brought out from voice coil loudspeaker voice coil (3), and suppresses the damage of the lead-out wire (30A) because caused by conflicting the bottom surface (4A) with magnetic circuit (4).The device has the lead division (30) being brought out positioned at the end face (3A) of the opposite side of oscillating plate (2) side that the lead-out wire (30A) of voice coil loudspeaker voice coil (3) crosses the voice coil loudspeaker voice coil (3), magnetic circuit (4) have be configured in the end face (3A) of magnetic gap (4G) voice coil loudspeaker voice coil (3) it is relative to bottom surface (4A), the end face (3A) that voice coil loudspeaker voice coil (3) are formed with bottom surface (4A) abuts or lead division (30) is kept out of the way during close to bottom surface (4A) backoff portion (40).
Description
The application is the application for a patent for invention (international application no of original bill Application No. 200980155629.0：PCT/
JP2009/051646, the applying date：On January 30th, 2009, denomination of invention：Speaker unit) divisional application.
Technical field
The present invention relates to a kind of small speaker devices.
Background technology
In in general speaker unit, the voice coil loudspeaker voice coil for being fixed in oscillating plate is vibrated the magnetic gap for being configured at magnetic circuit freely
It is interior.The lead-out wire (lead) being brought out from voice coil loudspeaker voice coil is connected to the portion of terminal being arranged on speaker frame.
Because surrounded around the lower section (side opposite with oscillating plate) of voice coil loudspeaker voice coil by the component parts of magnetic circuit, from voice coil loudspeaker voice coil
The lead-out wire being brought out typically is drawn from the upside of voice coil loudspeaker voice coil (oscillating plate side).Moreover, the lead-out wire being brought out is directed from voice coil loudspeaker voice coil
To the portion of terminal of speaker frame, so as to along to oscillating plate.In device described in following patent documents 1, oscillating plate is divided into
Central top plate and lateral roof, make voice coil loudspeaker voice coil be hung down on the inner edge of lateral roof, are configured along the upside of lateral roof from voice coil loudspeaker voice coil
The lead-out wire that is brought out of upside.
Patent document 1：Japanese Patent Publication 2009-10512 publications
The content of the invention
Problems to be solved by the invention
Such as conventional art, in the case of the lead-out wire being brought out along oscillating plate configuration from voice coil loudspeaker voice coil, sometimes in oscillating plate
Oscillating plate and linear contact lay is drawn during vibration, therefore produce and the problem of vibration of abnormal sound or oscillating plate is hindered etc occurs.Separately
Outside, in order to avoid the interference of oscillating plate and lead-out wire, also using the downside of peripheral part (edge part) of oscillating plate, (sound equipment is put sometimes
Penetrate direction SD opposite side) space guides guide line to speaker frame from voice coil loudspeaker voice coil, but edge part is radiated towards sound equipment
Direction SD turns into convex, in case edge part encounters lead-out wire, and because oscillating plate protrudes before framework, so small being equipped on
During situation in type electronic equipment etc., it is necessary to before framework installation space, so produce can not correspond to it is slim or miniaturization
It is required that the problem of.
Also have by lead-out wire it is integrated with oscillating plate and draw situation, but because lead-out wire integration and oscillating plate is upset
In the case that weight balancing, especially oscillating plate are slim or light weight, the bad influence to acoustic characteristic becomes big.If shaken with very thin
Dynamic plate, then can not also having realized supporting lead-out wire sometimes, this is acted in itself.
In addition, the end face of voice coil loudspeaker voice coil is being directly joined into oscillating plate, and drawn from the oscillating plate side end face of voice coil loudspeaker voice coil
During line, lead-out wire has to pass through junction sometimes.In this case, connect compared with producing when tabular surface is engaged in into oscillating plate
The problem of declining with joint efforts.
Handle this problem, it may be considered that draw lead-out wire simultaneously positioned at the end face of the opposite side of oscillating plate side from voice coil loudspeaker voice coil
Lead-out wire is guided to portion of terminal away from oscillating plate.Now, a side of a pair of lead-out wires crosses the downside of voice coil loudspeaker voice coil (positioned at being connect
Together in the opposite side of the side of oscillating plate) end face and be brought out.According to the outbound course of this lead-out wire, then rushed in landing
When hitting or voice coil loudspeaker voice coil amplitude it is larger when, the bottom surface of magnetic circuit is run into the downside end face of voice coil loudspeaker voice coil sometimes, now because lead-out wire crosses sound
The downside end face of circle, concentrate so as to producing impact weight and put on cross 1 lead-out wire and lead-out wire is easily impaired asks
Topic.
The present invention will handle this problem as one of problem.That is, it is an object of the present invention to avoid being drawn from voice coil loudspeaker voice coil
The interference of the lead-out wire and oscillating plate that go out；The interference of lead-out wire and oscillating plate is avoided to suppress shaking for the generation of abnormal sound or oscillating plate
Dynamic characteristic deteriorates；Sufficient engaging force can also be obtained when directly engagement oscillating plate and voice coil loudspeaker voice coil；Suppress because of voice coil loudspeaker voice coil and magnetic
Damage of lead-out wire etc. caused by the bottom surface conflict of circuit.
The means used to solve the problem
In order to realize this purpose, the small speaker devices based on the present invention at least possess involved by following aspects
Structure.
The small speaker devices have：Stationary part；Oscillating plate, it is concave side that it, which has relative to sound equipment radiation direction,
Edge；Voice coil loudspeaker voice coil, it is directly or indirectly engaged in the oscillating plate；And magnetic circuit, it forms the magnetic for configuring the voice coil loudspeaker voice coil
Gap, when not vibrating, the voice coil loudspeaker voice coil bonding station of the oscillating plate and the engagement position relative to the stationary part of the edge part
Setting in roughly the same height, when the voice coil loudspeaker voice coil is excessively mobile, one of the concave edge part and the magnetic circuit
Tap is touched.
Brief description of the drawings
Fig. 1 is the explanation figure for the characteristic for representing the speaker unit involved by one embodiment of the present invention.
Fig. 2 is the explanation figure for the more specifically characteristic for representing the speaker unit involved by embodiments of the present invention
(major part profile).
Fig. 3 is the explanation figure for the more specifically characteristic for representing the speaker unit involved by embodiments of the present invention
(stereogram of yoke).
Fig. 4 is the explanation figure for the more specifically characteristic for representing the speaker unit involved by embodiments of the present invention
(the explanation figure of the lead-out wire of explanation voice coil loudspeaker voice coil).
Fig. 5 is the explanation figure for the more specifically characteristic for representing the speaker unit involved by embodiments of the present invention
(the explanation figure for representing the function of backoff portion).
Fig. 6 is represent speaker unit involved by embodiments of the present invention integrally-built in addition to oscillating plate
Top view.
Fig. 7 is represent speaker unit involved by embodiments of the present invention integrally-built in addition to oscillating plate
Top view.
Fig. 8 is represent speaker unit involved by embodiments of the present invention integrally-built in addition to oscillating plate
Top view.
Fig. 9 is the explanation figure for representing the speaker unit involved by the other embodiment of the present invention.
Figure 10 is that (figure (a) is to represent for the explanation figure of the formation example for representing the extraction channel in embodiments of the present invention
The side view of one formation example of extraction channel 5, the figure (b) are other side views formed for representing extraction channel 5).
Figure 11 is the explanation figure for representing to draw the example of the outbound course of lead-out wire from voice coil loudspeaker voice coil in embodiments of the present invention
(figure (a) is the top view of voice coil loudspeaker voice coil 3, and the figure (b) is the winding start position in the wire 30A of the voice coil loudspeaker voice coil 3 shown in the figure (a)
Neighbouring enlarged drawing, the figure (c) are the enlarged drawings near the wire 30A for the voice coil loudspeaker voice coil 3 that the figure (a) represents winding end position.
In addition, the figure (d) and the figure (e) are the explanation figures for the deformation row for representing the figure (b) and the voice coil loudspeaker voice coil shown in the figure (c) respectively).
Figure 12 is the explanation figure for representing the speaker unit involved by the other embodiment of the present invention.
Figure 13 is the explanation figure for the electronic equipment for representing to possess the speaker unit involved by embodiments of the present invention.
Embodiment
Hereinafter, with reference to the accompanying drawings of embodiments of the present invention.Although content of the embodiments of the present invention including diagram,
But it is not limited only to this.Fig. 1 is the explanation for the characteristic for representing the speaker unit involved by one embodiment of the present invention
Figure.Speaker unit 1 possesses and has oscillating plate 2, voice coil loudspeaker voice coil 3, magnetic circuit 4 and the stationary part for omitting diagram.
Oscillating plate 2 is supported in the stationary part for omitting diagram.Stationary part said here is relative to the driving by voice coil loudspeaker voice coil 3
The position of caused vibration geo-stationary, it is totally stationary to be not necessarily referring to itself.The framework or magnetic circuit 4 of speaker unit 1 are certainly
Body or one part etc., or 1 position etc. of being carried of being had speaker device mounted thereon turn into stationary part.In addition, when magnetic circuit is
During stationary part, speaker unit 1 has the construction of the yoke supporting oscillating plate 2 of composition magnetic circuit described later, for example, in yoke
Peripheral part is supported by the peripheral part of oscillating plate 2.
One side of voice coil loudspeaker voice coil 3 is directly or indirectly engaged in oscillating plate 2.As illustrated, the sound equipment of voice coil loudspeaker voice coil 3 can be radiated
The end face 3B of direction SD sides is directly joined oscillating plate 2, also voice coil loudspeaker voice coil 3 can be engaged in into vibration by supports such as speech coil frameworks
Plate 2.When being engaged by supports such as speech coil frameworks, support can be made to be held in by maintaining bodies such as dampers static
Portion.
Magnetic circuit 4 forms the magnetic gap 4G for being configured voice coil loudspeaker voice coil 3, and is supported in the stationary part or magnetic circuit for omitting diagram
4 itself turn into stationary part.As described later, magnetic circuit 4 includes the constitutive requirements such as yoke, magnetite and thin plate.Magnetic gap 4G is formed as
In the case of all shapes, can use on the inside of it configure magnetite internal magnetic type, on the outside of it configure magnetite external magnetic type, Yi Ji
Any one in the double magnetic type (the outer magnetic of interior magnetic and with type) of its both sides configuration magnetite.
In addition, in the case where using the magnetite being magnetized on sound equipment radiation direction SD, magnetic gap is formed using thin plate
4G.And it is possible to use interior magnetic using the magnetite being magnetized on relative to voice coil loudspeaker voice coil radiation direction SD generally perpendicular directions
The magnetic circuit of type or external magnetic type.Now, magnetic gap 4G is formed by yoke and magnetite.Can use will be relative to sound equipment radiation direction
The magnetite being magnetized in SD generally perpendicular directions is configured at the magnetic circuit of the double magnetic type in inner side and outside.Now, in inner side and
Magnetic gap 4G is formed between the magnetite in outside.In addition, when using foregoing magnetic circuit, can basis not necessarily using yoke
Need, magnetite or thin plate are supported by framework described later (nonmagnetic material).In the case where supporting magnetite or thin plate by framework, have
It is relative with the end face of voice coil loudspeaker voice coil 3 to bottom surface, and turn into stationary part.Further, it is possible to use thin plate and the multiple magnetic for seizing the thin plate on both sides by the arms
By the repulsion type magnetic circuit (being configured magnetite on the inner or outer side of voice coil loudspeaker voice coil 3) that framework supports, the situation middle frame also has stone
It is relative with the end face of voice coil loudspeaker voice coil 3 to bottom surface, and turn into stationary part.
Moreover, in speaker unit 1 involved by embodiments of the present invention, the lead-out wire 30A with voice coil loudspeaker voice coil 3 crosses sound
The lead division 30 for enclosing the 3 end face 3A positioned at the opposite side of the side of oscillating plate 2 and being brought out.Voice coil loudspeaker voice coil 3 is transfused to sound due to being connected to
The signal input terminal of frequency signal, so one opposite end portions are not linked to lead-out wire 30A.Wind 1 wire and be formed
Voice coil loudspeaker voice coil 3 can form lead-out wire 30A by the prolongation at the both ends of its wire.
In embodiments of the present invention, lead-out wire 30A is not to be drawn from the end of the side of oscillating plate 2 of voice coil loudspeaker voice coil 3, but from
End than the side of oscillating plate 2 of voice coil loudspeaker voice coil 3 is drawn closer to a part for the voice coil loudspeaker voice coil 3 in sound equipment radiation direction SD opposite side, more
Specifically drawn from the end of the opposite side of oscillating plate 2 (sound equipment radiation direction SD opposite side).If now a pair of signals
Input terminal both sides are in a side side of voice coil loudspeaker voice coil 3, then a pair of a lead-out wire 30A side necessarily crosses the end face 3A of voice coil loudspeaker voice coil 3, is holding
Lead division 30 is formed on the 3A of face.In addition, embodiments of the present invention are not limited to, for example, lead-out wire 30A can also be from position
Be brought out in the side of the voice coil loudspeaker voice coil 3 of the opposite side for the side for being configured signal input terminal, i.e. when signal input terminal relative to
When voice coil loudspeaker voice coil 3 is configured in outside, in addition to the end face 3A of voice coil loudspeaker voice coil 3, from the end of the side of oscillating plate 2 than voice coil loudspeaker voice coil 3 closer to magnetoelectricity
The inner side surface 3C of the side of road 4, i.e. voice coil loudspeaker voice coil 3 is brought out, or when signal input terminal is configured in inner side relative to voice coil loudspeaker voice coil 3,
It is brought out from the outer lateral side 3D of voice coil loudspeaker voice coil 3, and crosses the end face 3A of voice coil loudspeaker voice coil 3 and wound.That is, cross the end face 3A of voice coil loudspeaker voice coil 3 and
By winding, if lead-out wire 30A extraction location be the end of the side of oscillating plate 2 than voice coil loudspeaker voice coil 3 closer to the side of magnetic circuit 4,
It can be then any position of voice coil loudspeaker voice coil 3.
In contrast, in speaker unit 1, magnetic circuit 4 has the end face 3A of the voice coil loudspeaker voice coil 3 with being configured in magnetic gap 4G relative
To bottom surface 4A, the end face 3A that voice coil loudspeaker voice coil 3 is formed with the 4A of bottom surface abuts or foregoing lead division 30 during close to bottom surface 4A is kept out of the way
Backoff portion 40.
As shown in Fig. 1 (a), backoff portion 40 can be formed on bottom surface 4A position recess 40As corresponding with lead division 30,
As shown in the figure (b) or it is being formed on opening portion 40Bs of the bottom surface 4A with 30 corresponding position of lead division.Recess 40A
For relative to bottom surface 4A and in the part recessed with sound equipment radiation direction SD opposite side, opening portion 40B is to be formed with running through
The part of the opening of the bottom of magnetic circuit 4.
According to the speaker unit 1 with this feature, because being drawn from the end of the side opposite side of oscillating plate 2 from sound
The lead-out wire 30A that circle 3 is brought out, so interference of the lead-out wire 30A to oscillating plate 2 can be suppressed.Thus, it is possible to suppress by vibrating
The generation of abnormal sound or the vibration characteristics of oscillating plate 2 decline caused by plate 2 and lead-out wire 30A contacts.Especially it is used in hand
The speaker unit of the carried terminal equipment such as machine is higher to small-sized or slimming requirement, as oscillating plate (vibrating reed) quilt mostly
Use the oscillating plate of light weight or minimal thickness.If lead-out wire interferes this oscillating plate, the influence brought to sound equipment output will
Become big, if but speaker unit 1 involved according to the embodiment of the present invention, this light weight or minimal thickness will not be made
The performance of oscillating plate 2, which reduces, can just make its vibration.
Also, according to speaker unit 1, because being brought out from being drawn with the end of the side opposite side of oscillating plate 2 from voice coil loudspeaker voice coil 3
Lead-out wire 30A, so can be by the end face 3B adhesive bonds of the oscillating plate side of voice coil loudspeaker voice coil 3 in oscillating plate 2.Thereby, it is possible to strengthen
Cohesive force during voice coil loudspeaker voice coil 2 is directly engaged on oscillating plate 2, and the vibration of voice coil loudspeaker voice coil 3 can be positively transferred to oscillating plate 2.
Also, because speaker unit 1 on the bottom surface 4A as the magnetic circuit 4 of stationary part formed with backoff portion 40, institute
In the case of lead-out wire 30A is drawn positioned at the end of the opposite side of the side of oscillating plate 2 from voice coil loudspeaker voice coil 3, can also suppress
The unfavorable condition that lead-out wire 30A runs into the bottom surface 4A of magnetic circuit 4 and damaged.Lead division 30 is the end that lead-out wire 30A crosses voice coil loudspeaker voice coil 3
Face 3A and the part being brought out.The part turns into the end face 3A than voice coil loudspeaker voice coil 3 closer to the part of bottom surface 4A sides partly projection,
If 4A does not have backoff portion 40 in bottom surface, the end face 3A of voice coil loudspeaker voice coil 3 is when abutting or close to the bottom surface 4A of magnetic circuit 4, lead-out wire 30A
Partly conflict with bottom surface 4A and impacted by centrality.In speaker unit 1, when the end face 3A of voice coil loudspeaker voice coil 3 is abutted or close to magnetic
During the bottom surface 4A of circuit 4, lead division 30 is contained in backoff portion 40, thus, it is possible to suppress the lead-out wire 30A of lead division 30 by
Centrality is impacted.
The speaker unit for being equipped on the carrying electronic equipment such as mobile phone is required to maintain the performance of drop impact.Raise one's voice
When device device is by drop impact, the supporting force of oscillating plate (vibrating reed) or damper etc. relative to voice coil loudspeaker voice coil weaker small of weight
In type or slim speaker unit, conflicting positioned at the end face of opposite side of oscillating plate side with the bottom surface of magnetic circuit for voice coil loudspeaker voice coil is produced
The state of affairs.Speaker unit 1 involved by embodiments of the present invention is also accommodated in backoff portion 40 and drawn in this state of affairs
Go out portion 30, so as to avoid lead-out wire 30A by larger impact.Therefore, speaker unit 1 is being equipped on carrying electronic equipment
In the case of, it can be ensured that the performance of drop impact is maintained.
Even being equipped on mobile phone etc. carries the speaker unit of electronic equipment also as common speaker unit,
Be required big output, bass emphasize, the sound equipment performance of low deformation.On the other hand, the winding width (long voice coil) of increase voice coil loudspeaker voice coil turns into one
Individual processing mechanism.In this case, because the amplitude of voice coil loudspeaker voice coil becomes big, so as to which voice coil loudspeaker voice coil is positioned at the end face of the opposite side of oscillating plate side
Easily run into the bottom surface of magnetic circuit.In contrast, speaker unit 1 involved by embodiments of the present invention is held due to backoff portion 40
Lead division 30 is received so as to avoid lead-out wire 30A by larger impact, so output greatly can be obtained, bass is emphasized, low deformation
Sound equipment performance while, the unfavorable condition as caused by lead-out wire 30A damage can be suppressed.
More specifically, the recess 40A for forming backoff portion 40 has and lead-out wire preferably with respect to the bottom surface 4A of magnetic circuit 4
30A external diameter is equal or the segment difference that is larger than.Due to, when the end face 3A of voice coil loudspeaker voice coil 3 runs into the bottom surface 4A of magnetic circuit 4,
Also all lead-out wire 30A can be accommodated in recess 40A and lead-out wire 30A is not easily susceptible to impact.
Also, forming the recess 40A of backoff portion 40 can be formed as crossing the end face 3A of voice coil loudspeaker voice coil 3 area with lead-out wire 30A
The corresponding shape in domain.Thereby, it is possible to which the width of recess is limited in necessary width, and can reduce in magnetic circuit 4
The influence of magnetic density.
Also, by by from magnetic circuit 4 with oscillating plate 2 it is relative to end face (above) 4B to bottom surface 4A distance L2 sets
For more than the distance L1 (L1 ＜ L2) from oscillating plate 2 to the end face 3A of voice coil loudspeaker voice coil 3, so as to run into magnetic circuit 4 in the end face 3A of voice coil loudspeaker voice coil 3
Bottom surface 4A before, oscillating plate 2 will run into the end face 4B of magnetic circuit 4, can reduce as caused by end face 3A runs into bottom surface 4A
Impact.In the case that oscillating plate 2 first runs into end face 4B, also have because of the deformation of oscillating plate 2 and the end face 3A of voice coil loudspeaker voice coil 3 is touched
The bottom surface 4A of upper magnetic circuit 4 situation, so in the case of L1 ＜ L2 are set to, it is also desirable to set backoff portion 40.
Also, can be by from oscillating plate 2 to magnetic circuit 4 and oscillating plate 2 in the state before drive the speaker device
It is relative to end face (above) 4B distance L3 is set smaller than the distance of the bottom surface 4A from the end face 3A of voice coil loudspeaker voice coil 3 to magnetic circuit 4
" L2-L1 " (L2-L1 ＜ L3), the impact as caused by end face 3A runs into bottom surface 4A can be reduced.Further, since sometimes because of oscillating plate
2 deformation and the end face 3A of voice coil loudspeaker voice coil 3 runs into the bottom surface 4A of magnetic circuit 4, so backoff portion 40 can also be set.
Fig. 2~Fig. 5 is the more specifically characteristic for representing the speaker unit involved by embodiments of the present invention
Illustrate that (Fig. 2 is major part profile to figure, and Fig. 3 is the stereogram of yoke, and Fig. 4 is the explanation figure for the lead-out wire for illustrating voice coil loudspeaker voice coil, figure
5 be the explanation figure for the function of representing backoff portion).In speaker unit 1A, a part and 2nd of the magnetic circuit 4 in the 1st magnetic pole piece 41
Formed with magnetic gap 4G between a part for magnetic pole piece 42, the extraction that lead-out wire 30A is passed through is formed on the 1st magnetic pole piece 41 and is led to
Road 5, lead-out wire 30A are brought out by extraction channel 5 towards signal input terminal.In the example shown in Fig. 2~Fig. 5, the 1st
The side of magnetic pole piece 41 sets extraction channel 5 and draws lead-out wire 30A in the outside of magnetic circuit 4, but also can be in the 2nd magnetic pole piece 42
Side forms extraction channel 5 and draws lead-out wire 30A in the inner side of magnetic circuit 4.Now it is formed in the inner side of magnetic circuit 4 towards end
The opening portion of sub-portion.
According to this, by forming extraction channel 5 in magnetic circuit 4, lead-out wire 30A can be made to pass through extraction channel 5 and will not
Drawn close to oscillating plate 2 towards signal input terminal.Therefore, by lead-out wire 30A from opposite with the side of oscillating plate 2 of voice coil loudspeaker voice coil 3
In the case that side is drawn, it can more reliably suppress the unfavorable condition caused by the interference of lead-out wire 30A and oscillating plate 2.
Show that the magnetic circuit 4 of internal magnetic type is used as an example in Fig. 2~Fig. 5.Speaker unit 1A possesses and has framework 10
As stationary part, oscillating plate 2, which possesses, has center vibration portion 2A and edge part 2B, the edge part 2B to be formed on its outside, and
Peripheral part is supported in the framework 10 as stationary part.Center vibration portion 2A and edge part 2B can be integral part, also may be used
To be an other part.Also, rigidity adding higher than center vibration portion 2A is mounted with center vibration portion 2A as needed
Strong part 11, its outer peripheral portion are crossed the edge portion of the 2nd magnetic pole piece 42 and extended on voice coil loudspeaker voice coil 3.In addition, in adjustment acoustic characteristic
Aspect, its outer peripheral portion of strengthening part 11 can also cross voice coil loudspeaker voice coil 3 interior edge nearby or edge portion nearby or edge portion and
Extension.By installing this strengthening part 11, so as to be reinforced the power of the supporting voice coil loudspeaker voice coil 3 based on oscillating plate 2, connect in oscillating plate 2
In the case of the part for touching magnetic circuit 4, can suppress because oscillating plate 2 is bent and the bottom of the end face 3A of voice coil loudspeaker voice coil 3 and magnetic circuit 4
4 conflicts.In addition, such as forming strengthening part 11 by polyphenylene sulfone resins, and make center vibration portion 2A or edge part 2B thickness
Than the thickness of thin of strengthening part 11, can also be formed by PEI or metal material etc..
In the example in the figures, on center vibration portion 2A outer peripheral portion or center vibration portion 2A and edge part 2B side
The engaged side for having voice coil loudspeaker voice coil 3 of boundary part or edge part 2B inner peripheral portion.Now, because from the side opposite side of oscillating plate 2
End draw the lead-out wire 30A that is brought out from voice coil loudspeaker voice coil 3, so can be by the end face 3B adhesive bonds of the side of oscillating plate 2 of voice coil loudspeaker voice coil 3
In oscillating plate 2.Engaging force thus, it is possible to suitably maintain oscillating plate 2 and voice coil loudspeaker voice coil 3, and can be by the vibration of voice coil loudspeaker voice coil 3 positively
Pass to oscillating plate 2.
Also, protecgulum 12 in the example in the figures, is mounted with the framework 10 as stationary part to cover edge
Portion 2B.As the side-strut edge 2B of framework 10 of stationary part peripheral part while, support magnetic circuit 4.And quilt on framework 10
Signal input terminal 13 is provided with, the lead-out wire 30A end being brought out is connected with the signal input terminal.
In the example, edge part 2B is formed concavity relative to sound equipment radiation direction SD.Edge part 2B is avoided accordingly to do
While relating to protecgulum 12, the space needed for the sound equipment radiation direction SD sides of oscillating plate 2 is reduced, seeks speaker unit 1A entirety
Slimming.Also, by the way that edge part 2B is set as into concavity relative to sound equipment radiation direction SD, so as to voice coil loudspeaker voice coil 3 to oscillating plate 2
When side opposite side largely moves, concave edge part 2B touches a part for magnetic circuit 4 and easily turns into the mistake relative to voice coil loudspeaker voice coil 3
Measure mobile resistance.Conflict hereby it is possible to suppress the excessive vibration of voice coil loudspeaker voice coil 3 with the bottom 4A of magnetic circuit 4.Due to from oscillating plate 2
The lead-out wire 30A being brought out from voice coil loudspeaker voice coil 3 is drawn in the end of side opposite side, therefore can make slim same of speaker unit 1A
When, it is ensured that edge part 2B is set as to the sufficient space needed for concavity on magnetic circuit 4.
Also, when in the example in the figures, not vibrating, the voice coil loudspeaker voice coil bonding station 2C of oscillating plate 2 is relative with edge part 2B's
In framework 10 (stationary part) bonding station 2B1 in roughly equal height.Thus the planarization before oscillating plate 2 is sought.
, need not because drawing lead-out wire 30A positioned at the end of the opposite side of the side of oscillating plate 2 from voice coil loudspeaker voice coil 3 in speaker unit 1A
Larger space is vacated near oscillating plate 2.Therefore, speaker unit 1A can realize slimming or planarization, and can be into
To be equipped on the favourable construction of small-sized carrying electronic equipment.
As shown in Figures 2 and 3, the 1st magnetic pole piece 41 of magnetic circuit 4 is formed by yoke 41A, and yoke 41A has bottom surface sections
The 41A1 and wall portion 41A2 for holding up into the periphery for surrounding bottom surface sections 41A1, the 2nd magnetic pole piece 42 is by thin plate 42A and magnetite 42B shapes
Into being formed with magnetic gap 4G between yoke 41A wall portion 41A2 inner face and thin plate 42A inner face.
Magnetic gap 4G is configured to all shapes, is being configured to be formed (the yoke of the 1st magnetic pole piece 41 on the outside of the magnetic gap 4G of all shapes
41A), it is formed with including magnetite 42B the 2nd magnetic pole piece 42 on the inside of magnetic gap 4G.Moreover, the 1st magnetic pole piece 41 (yoke 41A)
On be formed extraction channel 5, lead-out wire 30A is drawn to the outside of magnetic circuit 4 by the extraction channel 5.The extraction channel 5 connects
Continue and be formed in backoff portion 40.
Also, in the example shown in Fig. 3, the 1st magnetic pole piece 41 (yoke 41A) has multiple corners, backoff portion 40 and extraction
Passage 5 is formed near corner.Backoff portion 40 is formed on yoke 41A bottom surface sections 41A1, and is formed towards drawing
The width for going out the backoff portion 40 of passage 5 becomes narrow gradually.It is formed with that backoff portion 40 can be turned on yoke 41A corner in Fig. 3
With the form of extraction channel 5, but in fact, 2 therein of selection, 2 preferably on diagonal are used as the Hes of backoff portion 40
Extraction channel 5 uses.Also, as needed can use only be formed in 2 corners backoff portion 40 and extraction channel 5 so as to
Lead-out wire 30A can by, be not formed the yoke 41A of backoff portion 40 and extraction channel 5 in other 2 corners.And
In the example in the figures, its flat shape is formed near the corner of magnetic circuit 4 backoff portion 40, but is not limited to this,
The flat shape along the Network shape of the shape of voice coil loudspeaker voice coil 3 can also be set as, as long as being ensured that region that lead division 30 can be kept out of the way i.e.
Can.
As shown in figure 3, extraction channel 5 is formed on yoke 41A wall portion 41A2 discontinuous part.Also, draw logical
In the upper part in road 5, notch 5A is formed in wall portion 41A2, and the width for being formed extraction channel passes through notch 5A
Periodically become big.More specifically, as shown in Fig. 2 wall portion 41A2 and bottom surface sections 41A1 boundary member along backoff portion
40 outside is formed with the stage portion 43C towards sound equipment radiation direction SD.
By continuously forming extraction channel 5 in backoff portion 40, the lead-out wire 30A in backoff portion 40 can continuously be prolonged
Stretch and lead to extraction channel 5.Thereby, it is possible to avoid lead-out wire 30A larger complications and draw extraction from inside to outside from magnetic circuit 4
Line 30A.Now, because backoff portion 40 is formed on yoke 41A bottom surface sections 41A1, and it is formed towards extraction channel 5
The width of backoff portion 40 becomes narrow gradually, so the lead-out wire 30A for being contained in backoff portion 40 is directed by the shape of backoff portion 40
To extraction channel 5, and due to gradual constriction backoff portion 40, therefore the magnetic density without reducing magnetic gap 4G can just suppress
Lead-out wire 30A damage.
Also, in the upper part of extraction channel 5, notch 5A is formed in wall portion 41A2, and be formed to draw
The width of passage 5 periodically becomes big by notch 5A, so as to suppress space of the magnetic flux by extraction channel 5.Thus, press down
Making towards magnetic gap 4G magnetic flux reduces, and ensures to act on the sufficient electromagnetic force of voice coil loudspeaker voice coil 3.Further, it is possible to suppress logical
The lead-out wire 30A for crossing extraction channel 5 produces unnecessary electromagnetic force.Especially extraction is formed in 1 wire by forming voice coil loudspeaker voice coil 3
During line 30A, because the size of the tone currents by wire is smaller, so acting on lead-out wire 3A electromagnetic force actually becomes
It is smaller, unnecessary vibration is not produced.In addition, by expanding extraction channel 5 by notch 5A, so as to suppress lead-out wire
30A contacts with yoke 41A.Also, the notch 5A for being formed on the yoke 41A extended on long axis direction wall portion 41A2 can
To abut the function that framework 10 is fixed on to yoke 41A with the part by framework 10.
Because extraction channel 5 is formed on yoke 41A wall portion 41A2 discontinuous part, and its discontinuous part is by shape
Into in rectangle yoke 41A corner, reduced so can be formed to being brought as the effective yoke 41A of magnetic gap 4G straight line portion
Influence extraction channel 5.
Also, due in wall portion 41A2 and bottom surface sections 41A1 outside of the boundary member along backoff portion 40 formed with towards sound
Radiation direction SD stage portion 43C is rung, so the magnetic line of force that backoff portion 40 is bypassed in yoke 41A can be passed through into stage portion
43C is guided to magnetic gap 4G.The influence brought thereby, it is possible to reduce backoff portion 40 to magnetic gap 4G.Also, it can also exist as needed
Wall portion 41A2 and bottom surface sections 41A1 boundary member does not form stage portion 43C.When being not provided with stage portion 43C, as backoff portion
40 recess 40A or opening portion are formed continuously to wall portion 41A2.
Fig. 4 is the explanation figure for the lead-out wire for illustrating voice coil loudspeaker voice coil.The figure (a) is the top view of the voice coil loudspeaker voice coil from oscillating plate direction,
The figure (b) is the stereogram of the voice coil loudspeaker voice coil from the direction opposite with oscillating plate.In the engaged vibrations of end face 3B shown in the figure (a)
Plate, in end face, 3A is formed the lead division 30 that lead-out wire 30A is crossed.By drawing lead-out wire 30A from end face 3A sides, so as to hold
Face 3B becomes flat.By becoming flat with the composition surface of oscillating plate 2, so as to ensure the cohesive force on adhesive surface, and not
Just it is capable of the end face 3B engagements of relative voice coil loudspeaker voice coil 3 with the part inclination of oscillating plate 2 is made.In addition, pass through the flat end along voice coil loudspeaker voice coil 3
Face 3B engages oscillating plate 2, so as to suppress to occur unnecessary vibration (rolling etc.), and can suppress to contact with magnetic circuit 4
And produce abnormal sound.Thus, the vibration of voice coil loudspeaker voice coil 3 is positively transmitted to oscillating plate 2, so acoustic characteristic can be improved.
Preferably a pair of lead-out wire 30A position of drawing is drawn from the position on diagonal, to keep the balance of voice coil loudspeaker voice coil 3.
The balance of voice coil loudspeaker voice coil 3 during thereby, it is possible to keep vibration, and can suppress bad caused by inclination of the voice coil loudspeaker voice coil 3 in magnetic gap 4G
Situation.
By forming lead division 30 in end face 3A sides, protruded so as to turn into 1 lead-out wire 30A in lead division 30 from end face
State, if the bottom surface 4A (yoke 41A bottom surface) of the lead division 30 and magnetic circuit 4 is run into, 1 lead-out wire 30 is brought
Damage will become big.
The explanation of the function for the backoff portion 40 that Fig. 5 has been expressed as suppressing the damage born of the lead-out wire 30 and has been set
Figure.The figure (a) is the top view for the state that voice coil loudspeaker voice coil 3 is configured with magnetic gap 4G, and the figure (b), (c) are B-B profiles.In square
The wall portion 41A2 holded up around bottom surface sections 41A1 is opened in corner in 1st magnetic pole piece 41 (yoke 41A) of shape and shape
Into there is extraction channel 5.Backoff portion 40 is the recess 40A, its recess 40A in the corner for the bottom surface sections 41A1 for being formed on yoke 41A
Front end attenuate and continuously in extraction channel 5.
For the lead-out wire 30A being brought out from voice coil loudspeaker voice coil 3, coiled electrical conductor and be formed with voice coil loudspeaker voice coil 3, and pass through its wire
Prolongation is formed, and is brought out respectively at 2 positions from the inner and outer of voice coil loudspeaker voice coil.In Fig. 5 (a), the corner with yoke 41A
Coordinate and be brought out lead-out wire 30A from 2 positions on diagonal.The lead-out wire 30A (R) being brought out on right side is from voice coil loudspeaker voice coil 3
Outside is brought out and yoke 41A outside is directly directed to by extraction channel 5, the lead-out wire 30A (L) being brought out in left side
The lead division 30 for the end face 3A positioned at the opposite side of oscillating plate side for crossing voice coil loudspeaker voice coil is formed, passes through extraction from the top of backoff portion 40
Passage 5 and be directed to yoke 41A outside.
Lead-out wire 30A draws due to being the extension of voice coil loudspeaker voice coil 3, so being put on compared with the voice coil loudspeaker voice coil 3 that wire is tied and flowing to 1
The electromagnetic force of outlet 30A electric current is few.Therefore, even in, by magnetic flux, putting on lead-out wire 30A between extraction channel 5
Vibration of the electromagnetic force also hardly to voice coil loudspeaker voice coil 3 bring harmful effect.Also, also hardly cause because putting on lead-out wire
30A electromagnetic force and lead-out wire 30A vibrates in itself and is contacted with unfavorable condition as yoke 41A.
Fig. 5 (b) represents states of the end face 3A of voice coil loudspeaker voice coil 3 away from bottom surface 4A, and the figure (c) represents end face 3A and the bottom of voice coil loudspeaker voice coil 3
The state that face 4A is abutted.As illustrated, even if the end face 3A of voice coil loudspeaker voice coil 3 abuts with bottom surface 4A, the lead-out wire 30A of lead division 30 is accommodated
In in the recess 40A of backoff portion 40 without bearing compressing or impact from bottom surface 4A.Thereby, it is possible to suppress to fill in loudspeaker
Lead-out wire 30A is damaged when putting 1A drop impact or during the large amplitude of voice coil loudspeaker voice coil 3.
Fig. 6~Fig. 8 is represent speaker unit involved by embodiments of the present invention whole in addition to oscillating plate
The top view of body structure.Speaker unit 1A shown in Fig. 6 possesses just like foregoing rectangular-shaped magnetic circuit 4 and rectangular-shaped
Framework 10.Foregoing part adds same-sign and omits repeat specification.In speaker unit 1A, pass through extraction channel 5
Lead-out wire 30A formed with remaining long portion Lo, to crimp the periphery of magnetic circuit 4, remaining long portion Lo is by being erected in framework 10
Remaining bearing portion 14 of drawing money on credit be supported by, the company in framework 10 that lead-out wire 30A end is connected to and signal input terminal 13 links
Connecting terminal 50,51.In addition, remaining bearing portion 14 of drawing money on credit can also be not provided with framework 10 as needed.
Speaker unit 1B shown in Fig. 7 possesses just like foregoing rectangular-shaped magnetic circuit 4 and rectangular-shaped framework
10.Foregoing part adds same-sign and omits repeat specification.In speaker unit 1B, the 1st magnetic pole piece 41 (yoke 41A)
With line part, formed with backoff portion 40 and extraction channel 5 near the center section of its line part.Moreover, pass through extraction
The lead-out wire 30A of passage 5 forms remaining long portion Lo, and to crimp the periphery of magnetic circuit 4, remaining long portion Lo is by being erected on framework 10
Interior remaining bearing portion 14 of drawing money on credit is supported by, and lead-out wire 30A end is connected in the framework 10 linked with signal input terminal 13
Connection terminal 50,51.In addition, remaining bearing portion 14 of drawing money on credit can also be not provided with framework 10 as needed.
Speaker unit 1C shown in Fig. 8 possesses the magnetic circuit 4 and circle (or ellipse) for having circular (or ellipse) shape
The framework 10 of shape.Foregoing part adds same-sign and omits repeat specification.In speaker unit 1C, the 1st magnetic pole piece 41
(yoke 41A) has curve part, and backoff portion 40 and extraction channel 5 are formed near the center section of its curve part.And
And by the lead-out wire 30A of extraction channel 5 formed with remaining long portion Lo, to crimp the periphery of magnetic circuit 4, remaining long portion Lo by
Bearing portion 14 of being drawn money on credit more than being erected in framework 10 is supported by, and lead-out wire 30A end is connected to be connected with signal input terminal 13
Connection terminal 50,51 in the framework 10 of knot.In addition, remaining bearing portion 14 of drawing money on credit can also be not provided with framework 10 as needed.
Fig. 9 is the explanation figure for representing the speaker unit involved by the other embodiment of the present invention.Speaker unit 1D
In, magnetic gap 4G is configured to all shapes, and is being configured to be formed the 1st magnetic comprising magnetite 43B on the outside of the magnetic gap 4G of all shapes
Pole portion 43, the 2nd magnetic pole piece 44 with central portion 45 is formed on the inside of magnetic gap 4G, is formed in the 2nd magnetic pole piece 44
Extraction channel 5, lead-out wire 30A are drawn to central portion 45 by the extraction channel 5.
The 1st magnetic pole piece 43 positioned at magnetic gap 4G outside possesses and has thin plate 43A and magnetite 43B, positioned at magnetic gap 4G inner side
The 2nd magnetic pole piece 44 be made up of the yoke 44A with bottom 44A1, wall portion 44A2 and central opening 45.That is, speaker unit 1D
In magnetic circuit 4 be external magnetic type.
Extraction channel 5 is partly formed with yoke 44A the discontinuous of wall portion 44A2, continuously in the extraction channel 5
Backoff portion 40 (recess 40A) is formed on bottom 44A1.The extraction of the inner side of magnetic circuit 4 is drawn to by extraction channel 5
Line 30A is connected to the connection terminal 50,51 configured in the central portion 45 for being formed on the inner side of magnetic circuit 4.Possesses this
The speaker unit 1D of the magnetic circuit 4 of the external magnetic type of sample also has and foregoing speaker unit 1,1A, 1B, 1C identical work(
Energy.
Fig. 6 to Fig. 8 represents the magnetic circuit of so-called internal magnetic type, shows the magnetic circuit of so-called external magnetic type in Fig. 9, but be not limited to
This, such as the magnetic circuit of double magnetic type can be used, Fig. 6 is into Fig. 8, the quilt on yoke 41A bottom surface sections 41A1 or wall portion 41A2
The outside magnetite and outside thin plate of magnetite 42B and thin plate 42A ring-type, the quilt between outside thin plate and thin plate 42A are surrounded in configuration
Form magnetic gap 4G.In Fig. 9, it is configured to surround magnetite 43B and thin plate 43A on yoke 44A bottom surface sections 44A1 or wall portion 44A2
Ring-type inner side magnetite and inner side thin plate, magnetic gap 4G is formed between inner side thin plate and thin plate 43A.Also, magnetic circuit 4 is
The magnetic circuit of internal magnetic type or external magnetic type or double magnetic type, and yoke 41A, 44A can also be so-called framework (nonmagnetic material).And
And when magnetic circuit 4 is repulsion type magnetic circuit, Fig. 6 configured into Fig. 8 seize on both sides by the arms thin plate 42A 2 magnetites it is (mutually opposing
Magnetic pole is identical), and configure 2 magnetites for seizing thin plate 43A on both sides by the arms in fig.9 (mutually opposing magnetic pole is identical).
Figure 10 is the explanation figure for the formation example for representing extraction channel.The figure (a) is 1 formation example for representing extraction channel 5
Side view, the figure (b) be represent extraction channel 5 other formed side views.Such as shown in the figure (a), it is formed on
The extraction channel 5 of magnetic circuit 4 can point-blank to be cut from yoke 41A wall portion 41A2 upper end a to bottom surface sections 41A1 and
The state that terminal is cut into rectangle is formed, can also be with from yoke 41A wall portion 41A2 upper end a courts as shown in the figure (b)
Point-blank preset distance is cut to bottom surface sections 41A1 and terminal is cut into curvilinear state and formed.
Figure 11 is the explanation figure for representing to draw the example of the outbound course of lead-out wire from voice coil loudspeaker voice coil.The figure (a) is bowing for voice coil loudspeaker voice coil 3
View, the figure (b) are the enlarged drawings near the winding start position in the wire 30A of the voice coil loudspeaker voice coil 3 shown in the figure (a), the figure (c)
It is the enlarged drawing near the wire 30A of the voice coil loudspeaker voice coil 3 shown in the figure (a) winding end position.In addition, the figure (d) and the figure (e)
It is the explanation figure for the variation for representing the figure (b) and the voice coil loudspeaker voice coil shown in the figure (c) respectively.
As shown in Figure 11 (a)~(c), voice coil loudspeaker voice coil 3 be defined as a pair of lead-out wire 30A relative to voice coil loudspeaker voice coil 3 central point 0 substantially
The shape of point symmetry.Also, for lead-out wire 30A, due to drawing from the wire 31 for starting to be wound to end winding because of voice coil loudspeaker voice coil 3
The center of gravity CG of voice coil loudspeaker voice coil 3 risen is in diverse location relative to center 0, so be defined as can be with for lead-out wire 30A shape
Keep the balance of the voice coil loudspeaker voice coil 3.If also, only watching a pair of lead-out wire 30A attentively, a pair of lead-out wire 30A are mutually configured in substantially
The position of point symmetry, so as to ensure the weight balancing of voice coil loudspeaker voice coil 3 as far as possible.
Also, for voice coil loudspeaker voice coil 3, as shown in Figure 11 (a)~(e), the winding of wire 31 from rectangular-shaped adjacent corner is opened
Beginning, position 31S started to wind, and after only winding pre- fixing turn (N circles), the winding end position near its opposed each portion
31E terminates to wind.At this moment, in voice coil loudspeaker voice coil 3, center of gravity CG from the center of voice coil loudspeaker voice coil deviate with from the winding start position 31S of wire 31
To amount corresponding to winding end position 31E wire 31.Because center of gravity CG deviates from the center 0 of voice coil loudspeaker voice coil, the extraction
Line 31A shape is defined as keeping the balance of the voice coil loudspeaker voice coil 3, specifically, as shown, the position of centre of gravity CG of voice coil loudspeaker voice coil 3 and
Lead-out wire 30A bending section 30A1 position is defined as clamping by the diagonal DL of voice coil loudspeaker voice coil central point 0 to turn into mutual phase
Toss about.
In the voice coil loudspeaker voice coil 3 of this structure, lead-out wire 30A line density is considered, by a pair of lead-out wire 30A bending section 30A1
Shape be defined as keeping the balance of voice coil loudspeaker voice coil 3.Thus, by using such voice coil loudspeaker voice coil 3, so as to keep voice coil loudspeaker voice coil 3
Vibration balancing, and can suppress to reduce tonequality because drawing lead-out wire 30A.
Figure 12 is the explanation figure for representing the speaker unit involved by the other embodiment of the present invention.Foregoing part is attached
Add same-sign and omit repeat specification.Speaker unit 1E is the explanation figure for representing Mobyneb loudspeaker.The embodiment
In situation about being also equally applicable to foregoing speaker unit in Mobyneb speaker unit is shown.The loudspeaker of diagram
The profile of device is toroidal, but can also be rail type, ellipse, angle-style, polygonal, rectangular-shaped etc., is not limited especially
It is fixed.
In loudspeaker 1E, if electric signal is input to voice coil loudspeaker voice coil 3, magnetic circuit 4 is between voice coil loudspeaker voice coil 3 and magnetic circuit 4 with work
With or counteractive principle vibrate.By the Vibration propagation of magnetic circuit 4 to framework 10, so that whole speaker unit 1E vibrates,
The electronic equipment using the 1E that has speaker device mounted thereon, such as the user of cell phone apparatus are transferred to, so as to inform user of incoming call.
On the other hand, if electric signal is input to voice coil loudspeaker voice coil 3, because vibration 2 is also vibrated, so sound wave occurs, additionally it is possible to carried to user
For regenerating sound.Vibrate oscillating plate 2 and produce sound wave or vibrate magnetic circuit 4 and transmit these vibrations to user, can pass through
Input to the frequency error factor of the electric signal of voice coil loudspeaker voice coil 3.
Such speaker unit 1E is identical with foregoing embodiment, possesses framework 10, is supported in shaking for framework 10
Dynamic plate 2, magnetic circuit 4 are supported in the voice coil loudspeaker voice coil 3 of oscillating plate 2.In addition, magnetic circuit 4 is supported in framework 10 by damper 50, with
Just vibrated relative to framework 10 and supported freely.Damper 50 such as metal material, can vibrate and support magnetic freely
The rigid element of circuit 4 is formed.Also, weight can also be installed in magnetic circuit 4 as needed to adjust the resonance of magnetic circuit 4 frequency
Rate.
With magnetic circuit 4 it is relative to the bottom surface sections of framework 10 be formed with and the passage of ft connection 51, suppress magnetic
Circuit 4 can not vibrate because of the resistance of air, and the temperature that can suppress magnetic circuit 4 becomes high temperature.
Also, it is relative with the bottom of voice coil loudspeaker voice coil 3 to the possessed yoke 41A of magnetic circuit 4 bottom surface sections 41A1 by shape
Into the recess having as backoff portion 40.Identical with foregoing embodiment, backoff portion 40 is alternatively arranged as recess or opening portion is formed.
In addition, when for the embodiment when, transmitted to user vibrate when, magnetic circuit 4 or framework 10 vibrate, but as raising
When sound device device plays function (when producing sound), because magnetic circuit 4 and the Relative Vibration plate 2 of framework 10 and voice coil loudspeaker voice coil 3 turn into relative
Static state, so magnetic circuit 4 or framework 10 still turn into stationary part.
Figure 13 is the explanation figure for the electronic equipment for representing to possess the speaker unit involved by embodiments of the present invention.Such as
Electronic equipment 100 as mobile phone shown in the figure (a) or (the Portable, personal electricity of the portable terminal device as shown in the figure (b)
Brain) as electronic equipment 200 using the speaker unit 1 involved by embodiments of the present invention, so as in drop impact
Also the reduction of sound equipment performance can be suppressed.Further, it is possible to while maintaining such impact resistance, good sound equipment performance is played.
Also, ceiling of automobile etc. can also be installed on as needed, the speaker unit involved by embodiments of the present invention is taken
It is loaded in automobile.
More than, referring to the drawings embodiments of the present invention are carried out with detailed narration, but specific structure is not limited to this
A little embodiments, set using speaker unit for being formed flat voice coil loudspeaker voice coil etc., the scope that does not depart from present inventive concept
Change of meter etc. is also contained in the present invention.Also, as long as above-mentioned each embodiment does not have in its purpose and structure etc.
Special contradiction or problem, it is possible to which stream is used and combines mutual technology.
Claims (10)
1. a kind of small speaker devices, it is characterised in that the small speaker devices have：
Stationary part；
Oscillating plate, it is concave edge part that it, which has relative to sound equipment radiation direction,；
Voice coil loudspeaker voice coil, it is directly or indirectly engaged in the oscillating plate；And
Magnetic circuit, it forms the magnetic gap for configuring the voice coil loudspeaker voice coil,
When not vibrating, the voice coil loudspeaker voice coil bonding station of the oscillating plate and the engagement position relative to the stationary part of the edge part
Setting in roughly the same height,
When the voice coil loudspeaker voice coil is excessively mobile, the concave edge part contacts with a part for the magnetic circuit.
2. small speaker devices according to claim 1, it is characterised in that
The oscillating plate has center vibration portion,
The center vibration portion is plane.
3. small speaker devices according to claim 1 or 2, it is characterised in that
The small speaker devices also have the framework for supporting the magnetic circuit,
Hole be present in the bottom of the framework.
4. small speaker devices according to claim 1 or 2, it is characterised in that
The voice coil loudspeaker voice coil is directly joined the oscillating plate.
5. small speaker devices according to claim 2, it is characterised in that
Strengthening part is installed in the center vibration portion.
6. small speaker devices according to claim 1, it is characterised in that
The magnetic circuit has magnetic pole piece, and the magnetic pole piece is provided with extraction channel,
The lead-out wire of the voice coil loudspeaker voice coil has been drawn from the extraction channel.
7. small speaker devices according to claim 6, it is characterised in that
The lead-out wire by the extraction channel, formed around the magnetic circuit more than long portion.
8. small speaker devices according to claim 1 or 2, it is characterised in that
The lead-out wire of the voice coil loudspeaker voice coil is brought out from the voice coil loudspeaker voice coil and the end of the oscillating plate opposite side.
9. small speaker devices according to claim 1 or 2, it is characterised in that
The small speaker devices are the miniature loudspeakers of mobile information apparatus.
10. small speaker devices according to claim 9, it is characterised in that
The small speaker devices are the miniature loudspeakers of portable phone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410659557.6A CN104320743B (en) | 2009-01-30 | 2009-01-30 | Small speaker devices |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200980155629.0A CN102308595B (en) | 2009-01-30 | 2009-01-30 | Speaker device |
| CN201410659557.6A CN104320743B (en) | 2009-01-30 | 2009-01-30 | Small speaker devices |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980155629.0A Division CN102308595B (en) | 2009-01-30 | 2009-01-30 | Speaker device |
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| Publication Number | Publication Date |
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| CN104320743A CN104320743A (en) | 2015-01-28 |
| CN104320743B true CN104320743B (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410659557.6A Active CN104320743B (en) | 2009-01-30 | 2009-01-30 | Small speaker devices |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1285705A (en) * | 1999-08-23 | 2001-02-28 | 微技术公司 | Small electricity-sound converter with three-mode replaying property |
| CN1356851A (en) * | 2000-12-08 | 2002-07-03 | 三星电机株式会社 | Miniature loudspeaker |
| JP2002219412A (en) * | 2001-01-25 | 2002-08-06 | Onkyooribu Kk | Speaker with exciting device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4386327B2 (en) * | 2002-03-04 | 2009-12-16 | パイオニア株式会社 | Speaker device |
| JP2004096670A (en) * | 2002-09-04 | 2004-03-25 | Matsushita Electric Ind Co Ltd | Speaker |
| JP4948001B2 (en) * | 2005-03-09 | 2012-06-06 | 古河電気工業株式会社 | Diaphragm for flat speaker |
| KR100662411B1 (en) * | 2005-08-05 | 2007-01-02 | 엘지전자 주식회사 | TV flat diaphragm speaker assembly structure |
| CN101094537A (en) * | 2006-06-23 | 2007-12-26 | 上海乐金广电电子有限公司 | Panel speaker |
| CN201025732Y (en) * | 2007-03-09 | 2008-02-20 | 富港电子（东莞）有限公司 | speaker |
| CN201054783Y (en) * | 2007-05-11 | 2008-04-30 | 刘博强 | Ultra-thin flat gamut speaker |
| CN101316458A (en) * | 2007-05-29 | 2008-12-03 | 上海先锋电声器材有限公司 | Vibrating body for audio converter and loudspeaker device |
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2009
- 2009-01-30 CN CN201410659557.6A patent/CN104320743B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1285705A (en) * | 1999-08-23 | 2001-02-28 | 微技术公司 | Small electricity-sound converter with three-mode replaying property |
| CN1356851A (en) * | 2000-12-08 | 2002-07-03 | 三星电机株式会社 | Miniature loudspeaker |
| JP2002219412A (en) * | 2001-01-25 | 2002-08-06 | Onkyooribu Kk | Speaker with exciting device |
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| CN104320743A (en) | 2015-01-28 |
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