CN104320746B - Speaker unit - Google Patents
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- CN104320746B CN104320746B CN201410657913.0A CN201410657913A CN104320746B CN 104320746 B CN104320746 B CN 104320746B CN 201410657913 A CN201410657913 A CN 201410657913A CN 104320746 B CN104320746 B CN 104320746B
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- magnetic circuit
- oscillating plate
- speaker unit
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Abstract
The present invention provides a kind of speaker unit, the device avoids the interference of lead-out wire (30A) and oscillating plate (2) being brought out from voice coil (3), and inhibits the damage of the lead-out wire (30A) because caused by conflicting the bottom surface (4A) with magnetic circuit (4).The lead division (30) that lead-out wire (30A) of the device with voice coil (3) crosses the end face (3A) of the opposite side positioned at oscillating plate (2) side of the voice coil (3) and be brought out, magnetic circuit (4) have be configured in the end face (3A) of the voice coil (3) of magnetic gap (4G) it is opposite to bottom surface (4A), the end face (3A) that voice coil (3) are formed on 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 be original bill application No. is 200980155629.0 application for a patent for invention (international application no：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 speaker units.
Background technology
In general speaker unit, the 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 is connected to the portion of terminal being arranged on speaker frame.
Because it is surrounded around the lower section (side opposite with oscillating plate) of voice coil by the component parts of magnetic circuit, from voice coil
The lead-out wire being brought out generally is drawn from the upside of voice coil (oscillating plate side).Moreover, the lead-out wire being brought out is guided from voice coil
To the portion of terminal of speaker frame, so as to along to oscillating plate.In device recorded in following patent documents 1, oscillating plate is divided into
Central top plate and lateral roof make voice coil hang down on the inner edge of top plate on the outside, along the upside configuration of lateral roof from voice coil
The lead-out wire that is brought out of upside.
Patent document 1：Japanese Patent Publication 2009-10512 bulletins
Invention content
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, sometimes in oscillating plate
Oscillating plate and lead-out wire contact during vibration, therefore the vibration for leading to the problem of generation abnormal sound or oscillating plate is interfered etc.Separately
Outside, in order to avoid the interference of oscillating plate and lead-out wire, also using the downside of the peripheral part (edge part) of oscillating plate, (sound equipment is put sometimes
Penetrate the opposite side of direction SD) space guides guide line to speaker frame from voice coil, but edge part is made to be radiated towards sound equipment at this time
Direction SD becomes convex, in case edge part encounters lead-out wire, and because oscillating plate is prominent before frame, so small being equipped on
Durings situation in type electronic equipment etc., need the installation space before frame, thus generate can not correspond to it is slim or miniaturization
It is required that the problem of.
Also there is situation that is lead-out wire is integrated with oscillating plate and drawing, but oscillating plate is upset due to the integration of lead-out wire
In the case that weight balancing, especially oscillating plate are slim or light weight, become larger to the bad influence of acoustic characteristic.If it is shaken with very thin
Movable plate, then can not also having realized bearing lead-out wire sometimes, this is acted in itself.
In addition, the end face of voice coil is directly joined oscillating plate, and drawn from the oscillating plate side end face of voice coil
During line, lead-out wire has to pass through junction sometimes.In this case, it is connect compared with generating when flat surface is engaged in oscillating plate
The problem of resultant force declines.
Handle this problem, it may be considered that draw lead-out wire simultaneously from the end face of the opposite side positioned at oscillating plate side of voice coil
Lead-out wire is guided far from oscillating plate to portion of terminal.At this point, the downside that a side of a pair of of lead-out wire crosses voice coil (is located at and is 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 when the amplitude of voice coil is larger, the bottom surface of magnetic circuit is run into the downside end face of voice coil sometimes, at this time because lead-out wire crosses sound
The downside end face of circle, so as to generate that impact weight concentration is applied on cross 1 lead-out wire and lead-out wire is easily impaired asks
Topic.
The present invention will handle an example of this problem as subject.That is, it is an object of the present invention to avoids being drawn from voice coil
The interference of lead-out wire and oscillating plate gone out；The interference of lead-out wire and oscillating plate is avoided to inhibit the generation of abnormal sound or shaking for oscillating plate
Dynamic characteristic deteriorates；Sufficient engaging force is obtained even if in directly engagement oscillating plate and voice coil；Inhibit because of 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 speaker unit based on the present invention at least has the knot involved by following aspects
Structure.
The present invention provides a kind of speaker unit, has：Stationary part；Oscillating plate is supported in the stationary part；Sound
Circle, one end side is directly or indirectly engaged in the oscillating plate；Magnetic circuit forms the magnetic gap that the voice coil is configured, has
It is opposite with the end face of the voice coil to bottom surface；And lead division, the lead-out wire of the voice coil are crossing the voice coil with the magnetoelectricity
The bottom surface on road it is opposite to end face and be brought out, from the magnetic circuit it is opposite with the oscillating plate to the upper surface of to the magnetoelectricity
The distance of the bottom surface on road be more than from the oscillating plate to the voice coil it is opposite with the bottom surface of the magnetic circuit to end face away from
From.
Another kind speaker unit provided by the invention has：Stationary part；Oscillating plate is supported in the stationary part；Sound
Circle, one end side is directly or indirectly engaged in the oscillating plate；Magnetic circuit forms the magnetic gap that the voice coil is configured；And
Lead division, the lead-out wire of the voice coil cross the voice coil it is opposite with the bottom surface of the magnetic circuit to end face and be brought out, from
The distance above opposite with the oscillating plate of the oscillating plate to the magnetic circuit is less than from the voice coil and the magnetic
The bottom surface of circuit it is opposite to end face to the bottom surface of the magnetic circuit distance.
Description of the drawings
Fig. 1 is the definition graph for the characteristic for representing the speaker unit involved by one embodiment of the present invention.
Fig. 2 is the definition graph for the more specific characteristic for representing the speaker unit involved by embodiments of the present invention
(major part sectional view).
Fig. 3 is the definition graph for the more specific characteristic for representing the speaker unit involved by embodiments of the present invention
(stereogram of yoke).
Fig. 4 is the definition graph for the more specific characteristic for representing the speaker unit involved by embodiments of the present invention
(definition graph for illustrating the lead-out wire of voice coil).
Fig. 5 is the definition graph for the more specific characteristic for representing the speaker unit involved by embodiments of the present invention
(definition graph 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
Vertical view.
Fig. 7 is represent speaker unit involved by embodiments of the present invention integrally-built in addition to oscillating plate
Vertical view.
Fig. 8 is represent speaker unit involved by embodiments of the present invention integrally-built in addition to oscillating plate
Vertical view.
Fig. 9 is the definition graph 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 definition graph 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 definition graph for representing to draw the example of the outbound course of lead-out wire from voice coil in embodiments of the present invention
(figure (a) is the vertical view of voice coil 3, which is the winding start position in the conducting wire 30A of the voice coil 3 shown in the figure (a)
Neighbouring enlarged drawing, the figure (c) are the enlarged drawings near the winding end position of the conducting wire 30A for the voice coil 3 that the figure (a) represents.
In addition, the figure (d) and the figure (e) are the definition graphs for the deformation row for representing the figure (b) and the voice coil shown in the figure (c) respectively).
Figure 12 is the definition graph for representing the speaker unit involved by the other embodiment of the present invention.
Figure 13 is the definition graph for the electronic equipment for representing to have the speaker unit involved by embodiments of the present invention.
Specific embodiment
Hereinafter, it is described with reference to 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 has the stationary part for having oscillating plate 2, voice coil 3, magnetic circuit 4 and illustration omitted.
Oscillating plate 2 is supported in the stationary part of illustration omitted.Stationary part said here is relative to the driving by voice coil 3
The opposing stationary position of caused vibration, it is totally stationary to be not necessarily referring to itself.The frame or magnetic circuit 4 of speaker unit 1 are certainly
Body or part of it etc. or 1 position etc. of being carried of being had speaker device mounted thereon become stationary part.In addition, when magnetic circuit is
During stationary part, speaker unit 1 has the aftermentioned construction of yoke bearing oscillating plate 2 for forming magnetic circuit, for example, in yoke
Peripheral part is by the peripheral part of bearing oscillating plate 2.
The one end of voice coil 3 is directly or indirectly engaged in oscillating plate 2.As shown in the figure, the sound equipment of voice coil 3 can be radiated
The end face 3B of direction SD sides is directly joined oscillating plate 2, also voice coil 3 can be engaged in vibration by supporting parts such as speech coil frameworks
Plate 2.When, when supporting parts engage, can be made by speech coil framework supporting part pass through the holding mechanisms such as damper be held in it is static
Portion.
Magnetic circuit 4 forms the magnetic gap 4G for being configured voice coil 3, and is supported in the stationary part or magnetic circuit of illustration omitted
4 itself become 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, may be used on the inside of it be configured magnetite internal magnetic type, on the outside of it be configured 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 radiation direction SD generally perpendicular directions
The magnetic circuit of type or external magnetic type.At this point, magnetic gap 4G is formed by yoke and magnetite.May be used 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 inside and outside.At this point, in inside and
Magnetic gap 4G is formed between the magnetite in outside.In addition, when using aforementioned magnetic circuit, it, can basis not necessarily using yoke
It needs, magnetite or thin plate is supported by aftermentioned frame (nonmagnetic material).In the case where supporting magnetite or thin plate by frame, have
It is opposite with the end face of voice coil 3 to bottom surface, and as 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 3) that frame supports, which also has stone
It is opposite with the end face of voice coil 3 to bottom surface, and as stationary part.
Moreover, in speaker unit 1 involved by embodiments of the present invention, the lead-out wire 30A with voice coil 3 crosses sound
The lead division 30 for enclosing the end face 3A of 3 opposite side positioned at 2 side of oscillating plate and being brought out.Voice coil 3 is entered 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.It winds 1 conducting wire and is formed
Voice coil 3 can form lead-out wire 30A by the prolongation at the both ends of its conducting wire.
In embodiments of the present invention, lead-out wire 30A is not to be drawn from the end of 2 side of oscillating plate of voice coil 3, but from
A part than end closer to the voice coil 3 in the opposite side of sound equipment radiation direction SD of 2 side of oscillating plate of voice coil 3 is drawn, more
Specifically it is drawn from the end of 2 opposite side of oscillating plate (opposite side of sound equipment radiation direction SD).If a pair of of signal at this time
Input terminal both sides are in a side side of voice coil 3, then a side of a pair of of lead-out wire 30A necessarily crosses the end face 3A of 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 3 of the opposite side for the side for being configured signal input terminal, that is, when signal input terminal relative to
When voice coil 3 is configured in outside, in addition to the end face 3A of voice coil 3, from the end of 2 side of oscillating plate than voice coil 3 closer to magnetoelectricity
The inner side surface 3C of 4 side of road, i.e. voice coil 3 is brought out or when signal input terminal is configured in inside relative to voice coil 3,
It is brought out from the outer lateral side 3D of voice coil 3, and crosses the end face 3A of voice coil 3 and be wound.That is, cross the end face 3A of voice coil 3 and
Be wound, if the extraction location of lead-out wire 30A be the end of 2 side of oscillating plate than voice coil 3 closer to 4 side of magnetic circuit,
It can be then any position of voice coil 3.
In contrast, in speaker unit 1, end face 3A of the magnetic circuit 4 with the voice coil 3 with being configured in magnetic gap 4G is opposite
To bottom surface 4A, the end face 3A that voice coil 3 is formed on the 4A of bottom surface abuts or lead division 30 that close to bottom surface 4A when is aforementioned 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 and 30 corresponding position recess portion 40A of lead division,
Shown in such as figure (b) or it is being formed on opening portion 40Bs of the bottom surface 4A with 30 corresponding position of lead division.Recess portion 40A
For relative to bottom surface 4A and in the part concave 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 2 side opposite side of oscillating plate 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 inhibited.Thus, it is possible to inhibit 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 terminals equipment such as machine is to small-sized or slimming more demanding, as oscillating plate (vibrating reed) quilt mostly
Use the oscillating plate of light weight or thin thickness.If lead-out wire interferes this oscillating plate, the influence brought to sound equipment output will
Become larger, if but speaker unit 1 involved according to the embodiment of the present invention, this light weight or thin thickness will not be made
2 reduced performance of oscillating plate can just make its vibration.
Also, according to speaker unit 1, because being brought out from being drawn with the end of 2 side opposite side of oscillating plate from 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 3 in oscillating plate 2.Thereby, it is possible to enhance
Cohesive force during voice coil 2 is directly engaged on oscillating plate 2, and the vibration of voice coil 3 can be positively transferred to oscillating plate 2.
Also, because speaker unit 1 is formed with backoff portion 40, institute on the bottom surface 4A as the magnetic circuit 4 of stationary part
Even if in the case of drawing lead-out wire 30A in the end of the opposite side positioned at 2 side of oscillating plate from voice coil 3, can also inhibit
The unfavorable condition that lead-out wire 30A runs into the bottom surface 4A of magnetic circuit 4 and damages.Lead division 30 crosses the end of voice coil 3 for lead-out wire 30A
Face 3A and the part being brought out.The part becomes in the end face 3A than voice coil 3 closer to the part of bottom surface 4A sides partly protrusion,
If 4A does not have backoff portion 40 in bottom surface, the end face 3A of 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 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 inhibit 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.It raises 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 weaker small of weight
In type or slim speaker unit, the end face for generating the opposite side positioned at oscillating plate side of voice coil conflicts with the bottom surface of magnetic circuit
The state of affairs.Even if the speaker unit 1 involved by embodiments of the present invention in this state of affairs, also draws in the receiving of backoff portion 40
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 greatly export, bass emphasize, the sound equipment performance of low deformation.In this regard, the winding width (long voice coil) of increase voice coil is as one
A processing mechanism.In this case, because the amplitude of voice coil becomes larger, so as to the end face of the opposite side positioned at oscillating plate side of voice coil
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 the damage of lead-out wire 30A can be inhibited.
More specifically, the recess portion 40A for forming backoff portion 40 has and lead-out wire preferably with respect to the bottom surface 4A of magnetic circuit 4
The outer diameter of 30A is equal or the segment difference that is larger than.Due to, even if when the end face 3A of voice coil 3 runs into the bottom surface 4A of magnetic circuit 4,
Also all lead-out wire 30A can be accommodated in recess portion 40A and lead-out wire 30A is not easily susceptible to impact.
Also, forming the recess portion 40A of backoff portion 40 can be formed as crossing the area of the end face 3A of voice coil 3 with lead-out wire 30A
The corresponding shape in domain.Thereby, it is possible to which the width of recess portion 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 opposite to end face (above) the distance L2 of 4B to bottom surface 4A sets
To be more than the distance L1 (L1 ＜ L2) from oscillating plate 2 to the end face 3A of voice coil 3, so as to run into magnetic circuit 4 in the end face 3A of 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.Even if in the case where oscillating plate 2 first runs into end face 4B, the end face 3A for also having the voice coil 3 due to the deformation of oscillating plate 2 is touched
The situation of the bottom surface 4A of upper magnetic circuit 4, so even if in the case where being set to L1 ＜ L2, it is also desirable to set backoff portion 40.
It, can will be from oscillating plate 2 to magnetic circuit 4 and oscillating plate 2 also, in the state before drive the speaker device
It is opposite to the distance L3 of end face (above) 4B be set as distance less than the bottom surface 4A from the end face 3A of voice coil 3 to magnetic circuit 4
" L2-L1 " (L3 ＜ L2-L1) can reduce the impact as caused by end face 3A runs into bottom surface 4A.In addition, due to sometimes because of oscillating plate
2 deformation and the end face 3A of 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 specific characteristic for representing the speaker unit involved by embodiments of the present invention
(Fig. 2 is major part sectional view to definition graph, and Fig. 3 is the stereogram of yoke, and Fig. 4 is the definition graph for the lead-out wire for illustrating voice coil, figure
5 be the definition graph for the function of representing backoff portion).In speaker unit 1A, magnetic circuit 4 is in a part and the 2nd for the 1st magnetic pole piece 41
Magnetic gap 4G is formed between a part for magnetic pole piece 42, be formed on the 1st magnetic pole piece 41 lead-out wire 30A by extraction lead to
Road 5, lead-out wire 30A are brought out by extraction channel 5 towards signal input terminal.In Fig. 2~example shown in fig. 5, the 1st
41 side of magnetic pole piece 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 inside of magnetic circuit 4.It is formed at this time in the inside 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
It is drawn close to oscillating plate 2 towards signal input terminal.Therefore, by lead-out wire 30A from opposite with 2 side of oscillating plate of voice coil 3
In the case that side is drawn, it can more reliably inhibit the unfavorable condition caused by the interference of lead-out wire 30A and oscillating plate 2.
The magnetic circuit 4 of internal magnetic type is shown as an example in Fig. 2~Fig. 5.Speaker unit 1A has and has frame 10
As stationary part, oscillating plate 2, which has, 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 frame 10 as stationary part.Center vibration portion 2A and edge part 2B can be integrated component, also may be used
To be an other component.Also, rigidity adding higher than center vibration portion 2A is mounted in center vibration portion 2A as needed
Strong component 11, outer peripheral portion are crossed the edge portion of the 2nd magnetic pole piece 42 and are extended on voice coil 3.In addition, in adjustment acoustic characteristic
Aspect, its outer peripheral portion of strengthening part 11 can also cross 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 bearing voice coil 3 based on oscillating plate 2, connect in oscillating plate 2
In the case of the part for touching magnetic circuit 4, the bottom of the end face 3A of voice coil 3 and magnetic circuit 4 when oscillating plate 2 is bent can be inhibited
4 conflicts.In addition, such as forming strengthening part 11 by polyphenylene sulfone resins, and make the thickness of center vibration portion 2A or edge part 2B
Thickness than strengthening part 11 is thin, can also be formed by polyetherimide or metal material etc..
In the example in the figures, on the side of the outer peripheral portion of center vibration portion 2A or center vibration portion 2A and edge part 2B
The inner peripheral portion of boundary part or edge part 2B are bonded to the one end of voice coil 3.At this point, because from 2 side opposite side of oscillating plate
End draw the lead-out wire 30A that is brought out from voice coil 3, so can be by the end face 3B adhesive bonds of 2 side of oscillating plate of voice coil 3
In oscillating plate 2.Thus, it is possible to suitably maintain the engaging force of oscillating plate 2 and voice coil 3, and can be by the vibration of voice coil 3 positively
Pass to oscillating plate 2.
Also, protecgulum 12 in the example in the figures, is mounted on the frame 10 as stationary part to cover edge
Portion 2B.As the 10 side-strut edge 2B of frame of stationary part peripheral part while, support magnetic circuit 4.And quilt on frame 10
Signal input terminal 13 is provided with, the end of lead-out wire 30A being brought out is connected on 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 concavity relative to sound equipment radiation direction SD, so as to 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 becomes the mistake relative to voice coil 3
Measure mobile resistance.Conflict hereby it is possible to inhibit 3 excessive vibration of voice coil 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 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 bonding station 2C of oscillating plate 2 is opposite with edge part 2B's
In frame 10 (stationary part) bonding station 2B1 in roughly equal height.Thus seek the planarization of 2 front of oscillating plate.
It, need not because drawing lead-out wire 30A from the end of the opposite side positioned at 2 side of oscillating plate of 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 advantageous 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 the inner face of the wall portion 41A2 of yoke 41A and the inner face of thin plate 42A.
Magnetic gap 4G is configured to all shapes, and 41 (yoke of the 1st magnetic pole piece is formed on the outside of the magnetic gap 4G for being configured to all shapes
41A), it is formed with including the 2nd magnetic pole piece 42 of magnetite 42B 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 example shown in Fig. 3, the 1st magnetic pole piece 41 (yoke 41A) has multiple corners, backoff portion 40 and extraction
Channel 5 is formed near corner.Backoff portion 40 is formed on the bottom surface sections 41A1 of yoke 41A, and is formed towards drawing
The width for going out the backoff portion 40 of channel 5 becomes narrow gradually.It is formed with that backoff portion 40 can be become on the quadrangle of yoke 41A in Fig. 3
With the form of extraction channel 5, but in fact, selection it is therein 2, preferably 2 on diagonal be used as 40 He of backoff portion
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 be by, the yoke 41A not to be formed backoff portion 40 and extraction channel 5 in other 2 corners.And
In the example in the figures, flat shape is formed near the corner of magnetic circuit 4 backoff portion 40, and but not limited to this,
The flat shape along the Network shape of the shape of 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.
It can.
As shown in figure 3, extraction channel 5 is formed on the discontinuous section of the wall portion 41A2 of yoke 41A.Also, it draws 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 larger.More specifically, as shown in Fig. 2, wall portion 41A2 and bottom surface sections 41A1 boundary part 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
It stretches and leads to extraction channel 5.Thereby, it is possible to avoid the larger complications of lead-out wire 30A and draw extraction from inside to outside from magnetic circuit 4
Line 30A.At this point, because backoff portion 40 is formed on the bottom surface sections 41A1 of yoke 41A, and be 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 guided by the shape of backoff portion 40
To extraction channel 5, and due to gradual constriction backoff portion 40, not having to reduce the magnetic density of magnetic gap 4G can just inhibit
The damage of lead-out wire 30A.
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 channel 5 is periodically become larger by notch 5A, so as to inhibit space of the magnetic flux by extraction channel 5.Press down as a result,
Making towards the magnetic flux of magnetic gap 4G reduces, and ensure to act on the sufficient electromagnetic force of voice coil 3.Further, it is possible to inhibit logical
The lead-out wire 30A for crossing extraction channel 5 generates unnecessary electromagnetic force.Extraction is especially being formed by 1 conducting wire for forming voice coil 3
During line 30A, since the size of the tone currents by conducting wire is smaller, so acting on the electromagnetic force of lead-out wire 3A actually becomes
It is smaller, unnecessary vibration is not generated.In addition, by expanding extraction channel 5 by notch 5A, so as to inhibit lead-out wire
30A is contacted with yoke 41A.Also, the notch 5A for being formed on the wall portion 41A2 of the yoke 41A extended on long axis direction can
To have the function of that frame 10 is fixed on yoke 41A by the part abutting by frame 10.
Since extraction channel 5 is formed on the discontinuous section of the wall portion 41A2 of yoke 41A, and its discontinuous section is by shape
Into in the corner of rectangle yoke 41A, reduced so can be formed to being brought as the straight line portion of the effective yoke 41A of magnetic gap 4G
Influence extraction channel 5.
Also, due to being formed in the outside of wall portion 41A2 and boundary part along the backoff portion 40 of bottom surface sections 41A1 towards sound
The stage portion 43C of radiation direction SD is rung, so can the magnetic line of force that backoff portion 40 is bypassed in yoke 41A be passed through 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
The boundary part of wall portion 41A2 and bottom surface sections 41A1 does not form stage portion 43C.When being not provided with stage portion 43C, as backoff portion
40 recess portion 40A or opening portion are formed continuously to wall portion 41A2.
Fig. 4 is the definition graph for the lead-out wire for illustrating voice coil.Vertical view of the figure (a) for the voice coil from oscillating plate direction,
The figure (b) is the stereogram of the voice coil from the direction opposite with oscillating plate.It is vibrated in the end face 3B shown in the figure (a) by engagement
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 opposite voice coil 3 with the part inclination of oscillating plate 2 is made.In addition, pass through the flat end along voice coil 3
Face 3B engages oscillating plate 2, so as to inhibit to occur unnecessary vibration (rolling etc.), and can inhibit to contact with magnetic circuit 4
And generate abnormal sound.The vibration of voice coil 3 is positively transmitted to oscillating plate 2 as a result, so acoustic characteristic can be improved.
The position of drawing of preferably a pair of lead-out wire 30A is drawn from the position on diagonal, to keep the balance of voice coil 3.
Thereby, it is possible to the balance of the voice coil 3 when keeping vibration, and it can inhibit bad caused by inclination of the voice coil 3 in magnetic gap 4G
Situation.
By forming lead division 30 in end face 3A sides, protruded so as to become 1 lead-out wire 30A in lead division 30 from end face
State, if the bottom surface 4A (bottom surface of yoke 41A) of the lead division 30 and magnetic circuit 4 is run into, 1 lead-out wire 30 is brought
Damage will become larger.
Fig. 5 has been expressed as inhibiting the damage born of the lead-out wire 30 and the explanation of the function of backoff portion 40 that is set
Figure.The figure (a) is the vertical view for the state that voice coil 3 is configured in magnetic gap 4G, and the figure (b), (c) are B-B sectional views.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 portion 40A in the corner for the bottom surface sections 41A1 for being formed on yoke 41A, recess portion 40A
Front end attenuate and continuously in extraction channel 5.
For the lead-out wire 30A being brought out from voice coil 3, coiled electrical conductor and be formed with voice coil 3, and pass through its conducting wire
Prolongation is formed, and is brought out respectively at 2 positions from the inner and outer of 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 3
Outside is brought out and is directly directed to by extraction channel 5 outside of yoke 41A, the lead-out wire 30A (L) being brought out in left side
The lead division 30 of the end face 3A for the opposite side positioned at oscillating plate side for crossing voice coil is formed, passes through extraction from the top of backoff portion 40
Channel 5 and the outside for being directed to yoke 41A.
Lead-out wire 30A draws due to being the extension of voice coil 3, so being applied to compared with the voice coil 3 that conducting wire is tied and flowing to 1
The electromagnetic force of the electric current of outlet 30A is few.Therefore, even if by magnetic flux between extraction channel 5, it is applied to lead-out wire 30A
Electromagnetic force harmful effect hardly also is brought to the vibration of voice coil 3.Also, also hardly cause because being applied to lead-out wire
The electromagnetic force of 30A 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 3 far from bottom surface 4A, which represents end face 3A and the bottom of voice coil 3
The state that face 4A is abutted.As shown in the figure, even if the end face 3A of voice coil 3 is abutted with bottom surface 4A, the lead-out wire 30A of lead division 30 is accommodated
In in the recess portion 40A of backoff portion 40 without bearing compressing or impact from bottom surface 4A.Thereby, it is possible to inhibit to fill in loud speaker
Lead-out wire 30A is damaged when putting the drop impact of 1A or during the large amplitude of voice coil 3.
Fig. 6~Fig. 8 is represent speaker unit involved by embodiments of the present invention whole other than oscillating plate
The vertical view of body structure.Speaker unit 1A shown in fig. 6 has just like foregoing rectangular-shaped magnetic circuit 4 and rectangular-shaped
Frame 10.Aforementioned part adds the same symbol and omits repeated explanation.In speaker unit 1A, pass through extraction channel 5
Lead-out wire 30A be formed with remaining long portion Lo, to crimp the periphery of magnetic circuit 4, remaining long portion Lo is by being erected in frame 10
Remaining bearing portion 14 of drawing money on credit supported, the end of lead-out wire 30A is connected to the company in the frame 10 linked with signal input terminal 13
Connecting terminal 50,51.In addition, remaining bearing portion 14 of drawing money on credit can also be not provided with as needed in frame 10.
Speaker unit 1B shown in Fig. 7 has just like foregoing rectangular-shaped magnetic circuit 4 and rectangular-shaped frame
10.Aforementioned part adds the same symbol and omits repeated explanation.In speaker unit 1B, the 1st magnetic pole piece 41 (yoke 41A)
With straight line portion, backoff portion 40 and extraction channel 5 are formed near the middle section of its straight line portion.Moreover, pass through extraction
The lead-out wire 30A of channel 5 forms remaining long portion Lo, and to crimp the periphery of magnetic circuit 4, remaining long portion Lo is by being erected on frame 10
Interior remaining bearing portion 14 of drawing money on credit is supported, and the end of lead-out wire 30A is connected in the frame 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 as needed in frame 10.
Speaker unit 1C shown in Fig. 8 has and has the magnetic circuit 4 of round (or ellipse) shape and circle (or ellipse)
The frame 10 of shape.Aforementioned part adds the same symbol and omits repeated explanation.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 middle section of its curve part.And
And remaining long portion Lo is formed with by the lead-out wire 30A of extraction channel 5, to crimp the periphery of magnetic circuit 4, remaining long portion Lo by
Bearing portion 14 of drawing money on credit more than being erected in frame 10 is supported, and the end of lead-out wire 30A is connected to be connected with signal input terminal 13
Connection terminal 50,51 in the frame 10 of knot.In addition, remaining bearing portion 14 of drawing money on credit can also be not provided with as needed in frame 10.
Fig. 9 is the definition graph 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 the 1st magnetic comprising magnetite 43B is formed on the outside of the magnetic gap 4G for being configured to all shapes
Pole portion 43 is formed the 2nd magnetic pole piece 44 with central portion 45 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 the outside of magnetic gap 4G has and has thin plate 43A and magnetite 43B, positioned at the inside of magnetic gap 4G
The 2nd magnetic pole piece 44 be made 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 formed in the discontinuous section of the wall portion 44A2 of yoke 44A, continuously in the extraction channel 5
Backoff portion 40 (recess portion 40A) is formed on bottom 44A1.The extraction of the inside of magnetic circuit 4 is drawn to by extraction channel 5
Line 30A is connected to the connection terminal 50,51 being configured in the central portion 45 for being formed on the inside of magnetic circuit 4.Has this
The speaker unit 1D of the magnetic circuit 4 of the external magnetic type of sample also has the work(identical with aforementioned speaker unit 1,1A, 1B, 1C
Energy.
Fig. 6 shows the magnetic circuit of so-called external magnetic type, but be not limited in Fig. 9 to Fig. 8 shows the magnetic circuits of so-called internal magnetic type
This, such as the magnetic circuit of double magnetic type, in Fig. 6 to Fig. 8, the quilt on the bottom surface sections 41A1 of yoke 41A or wall portion 41A2 can be used
The cricoid outside magnetite of magnetite 42B and thin plate 42A and outside thin plate are surrounded in configuration, on the outside quilt between thin plate and thin plate 42A
Form magnetic gap 4G.In Fig. 9, it is configured to surround magnetite 43B and thin plate 43A on the bottom surface sections 44A1 of yoke 44A or wall portion 44A2
Cricoid inside magnetite and inside thin plate, magnetic gap 4G is formed between inside 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 frame (nonmagnetic material).And
And when magnetic circuit 4 be repulsion type magnetic circuit when, in Fig. 6 to Fig. 8 configuration seize on both sides by the arms thin plate 42A 2 magnetites it is (mutually opposed
Magnetic pole is identical), and 2 magnetites for seizing thin plate 43A on both sides by the arms are configured in fig.9 (mutually opposed magnetic pole is identical).
Figure 10 is the definition graph 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 it as shown in the figure (a), is formed on
The extraction channel 5 of magnetic circuit 4 can linearly to be cut from the upper end a of the wall portion 41A2 of yoke 41A to bottom surface sections 41A1 and
The state that terminal is cut into rectangle is formed, can also be with from the upper end a courts of the wall portion 41A2 of yoke 41A as shown in the figure (b)
Linearly preset distance is cut to bottom surface sections 41A1 and terminal is cut into curvilinear state and is formed.
Figure 11 is the definition graph for representing to draw the example of the outbound course of lead-out wire from voice coil.The figure (a) is bowing for voice coil 3
View, the figure (b) are the enlarged drawings near the winding start position in the conducting wire 30A of the voice coil 3 shown in the figure (a), the figure (c)
It is the enlarged drawing near the winding end position of the conducting wire 30A of the voice coil 3 shown in the figure (a).In addition, the figure (d) and the figure (e)
It is the definition graph for the variation for representing the figure (b) and the voice coil shown in the figure (c) respectively.
As shown in Figure 11 (a)~(c), voice coil 3 be defined as a pair of of lead-out wire 30A relative to voice coil 3 central point 0 substantially
The shape of point symmetry.Also, for lead-out wire 30A, due to drawing from the conducting wire 31 for starting to be wound to end winding because of voice coil 3
The center of gravity CG of voice coil 3 risen is in different location relative to center 0, so be defined as can be with for the shape of lead-out wire 30A
Keep the balance of the voice coil 3.If also, only watching a pair of of lead-out wire 30A attentively, a pair of lead-out wire 30A is mutually configured in substantially
The position of point symmetry, so as to ensure the weight balancing of voice coil 3 as possible.
Also, for voice coil 3, as shown in Figure 11 (a)~(e), the winding of conducting 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 3, center of gravity CG from the center of voice coil deviate with from 31 winding start position 31S of conducting wire
To the 31 corresponding amount of conducting wire of winding end position 31E.Because center of gravity CG deviates from the center of voice coil 0, the extraction
The shape of line 31A is defined as to keep the balance of the voice coil 3, specifically, as shown, the position of centre of gravity CG of voice coil 3 and
The position of the bending section 30A1 of lead-out wire 30A is defined as clamping through the diagonal DL of voice coil central point 0 and as mutual phase
It tosses about.
In the voice coil 3 of this structure, the line density of lead-out wire 30A is considered, by the bending section 30A1 of a pair of of lead-out wire 30A
Shape be defined as to keep the balance of voice coil 3.As a result, by using such voice coil 3, so as to keep voice coil 3
Vibration balancing, and can inhibit to reduce sound quality when drawing lead-out wire 30A.
Figure 12 is the definition graph for representing the speaker unit involved by the other embodiment of the present invention.Aforementioned part is attached
Add the same symbol and omit repeated explanation.Speaker unit 1E is the definition graph for representing Mobyneb loud speaker.The embodiment
In situation about being also equally applicable to aforementioned speaker unit in Mobyneb speaker unit is shown.The loud speaker of diagram
The shape of device is round, but can also be rail type, ellipse, angle-style, polygonal, rectangular-shaped etc., is not limited especially
It is fixed.
In loud speaker 1E, if electric signal is input to voice coil 3, magnetic circuit 4 is between voice coil 3 and magnetic circuit 4 with work
With or counteractive principle vibrate.By the Vibration propagation of magnetic circuit 4 to frame 10, so that entire 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 3, since vibration 2 is also vibrated, so sound wave occurs, additionally it is possible to be carried to user
For regenerating sound.It vibrates oscillating plate 2 and generates sound wave or vibrate magnetic circuit 4 and transmit these vibrations to user, can pass through
It is input to the frequency error factor of the electric signal of voice coil 3.
Such speaker unit 1E is identical with aforementioned embodiment, has frame 10, is supported in shaking for frame 10
Movable plate 2, magnetic circuit 4 are supported in the voice coil 3 of oscillating plate 2.In addition, magnetic circuit 4 is supported in frame 10 by damper 50, with
Just it is vibrated relative to frame 10 and is 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.
It is opposite with magnetic circuit 4 to the bottom surface sections of frame 10 be formed with and the external venthole 51 connected, inhibition magnetic
Circuit 4 can not vibrate due to the resistance of air, and the temperature that can inhibit magnetic circuit 4 becomes high temperature.
Also, it is opposite with the lower end of voice coil 3 to the bottom surface sections 41A1 of yoke 41A that has of magnetic circuit 4 by shape
Into the recess portion having as backoff portion 40.Identical with aforementioned embodiment, backoff portion 40 is alternatively arranged as recess portion or opening portion is formed.
In addition, when for the embodiment, when transmitting vibration to user, magnetic circuit 4 or frame 10 vibrate, but are used as and raise
When sound device device functions (when generating sound), since magnetic circuit 4 and 10 Relative Vibration plate 2 of frame and voice coil 3 become opposite
Static state, so magnetic circuit 4 or frame 10 still become stationary part.
Figure 13 is the definition graph for the electronic equipment for representing to have 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 speaker unit 1 involved by 200 embodiment using the present invention of electronic equipment, so as in drop impact
Also it can inhibit the reduction of sound equipment performance.Further, it is possible to while maintaining such impact resistance, good sound equipment performance is played.
Also, the ceiling of automobile can also be installed on as needed etc., the speaker unit involved by embodiments of the present invention is taken
It is loaded in automobile.
More than, embodiments of the present invention are carried out with detailed narration with reference to attached drawing, but specific structure is not limited to this
A little embodiments are set using speaker unit for being formed flat voice coil etc., the range 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 (8)
1. a kind of speaker unit, which is characterized in that the speaker unit has：
Stationary part；
Oscillating plate is supported in the stationary part；
Voice coil, one end side are directly or indirectly engaged in the oscillating plate；
Magnetic circuit, formed be configured the voice coil magnetic gap, have it is opposite with the end face of the voice coil to bottom surface；And
Lead division, the lead-out wire of the voice coil cross the voice coil it is opposite with the bottom surface of the magnetic circuit to end face and drawn
Go out,
Opposite with the oscillating plate from the magnetic circuit is more than to the distance of the bottom surface of the magnetic circuit from described above
Oscillating plate to the voice coil it is opposite with the bottom surface of the magnetic circuit to end face distance.
2. speaker unit according to claim 1, which is characterized in that
The oscillating plate has center vibration portion and edge part, which is formed in the outside of the center vibration portion, peripheral part
The stationary part is supported in,
Strengthening part is installed in the center vibration portion.
3. speaker unit according to claim 1 or 2, which is characterized in that
The magnetic circuit is supported in the stationary part, alternatively, the magnetic circuit is the stationary part.
4. speaker unit according to claim 2, which is characterized in that
The edge part is concavity relative to sound equipment radiation direction.
5. a kind of speaker unit, which is characterized in that the speaker unit has：
Stationary part；
Oscillating plate is supported in the stationary part；
Voice coil, one end side are directly or indirectly engaged in the oscillating plate；
Magnetic circuit forms the magnetic gap that the voice coil is configured；And
Lead division, the lead-out wire of the voice coil cross the voice coil it is opposite with the bottom surface of the magnetic circuit to end face and drawn
Go out,
From the oscillating plate to the magnetic circuit it is opposite with the oscillating plate to above distance be less than from the voice coil with
The bottom surface of the magnetic circuit it is opposite to end face to the bottom surface of the magnetic circuit distance.
6. speaker unit according to claim 5, which is characterized in that
The oscillating plate has center vibration portion and edge part, which is formed in the outside of the center vibration portion, peripheral part
The stationary part is supported in,
Strengthening part is installed in the center vibration portion.
7. speaker unit according to claim 5 or 6, which is characterized in that
The magnetic circuit is supported in the stationary part, alternatively, the magnetic circuit is the stationary part.
8. speaker unit according to claim 6, which is characterized in that
The edge part is concavity relative to sound equipment radiation direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410657913.0A CN104320746B (en) | 2009-01-30 | 2009-01-30 | Speaker unit |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200980155629.0A CN102308595B (en) | 2009-01-30 | 2009-01-30 | Speaker device |
| CN201410657913.0A CN104320746B (en) | 2009-01-30 | 2009-01-30 | Speaker unit |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980155629.0A Division CN102308595B (en) | 2009-01-30 | 2009-01-30 | Speaker device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104320746A CN104320746A (en) | 2015-01-28 |
| CN104320746B true CN104320746B (en) | 2018-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410657913.0A Active CN104320746B (en) | 2009-01-30 | 2009-01-30 | Speaker unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110856083B (en) * | 2019-11-19 | 2021-04-09 | 歌尔股份有限公司 | Voice coil, loudspeaker and manufacturing method of voice coil |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201025732Y (en) * | 2007-03-09 | 2008-02-20 | 富港电子（东莞）有限公司 | Loudspeaker |
| CN201134910Y (en) * | 2007-12-24 | 2008-10-15 | 宁波东威电子有限公司 | Terminal conducting wire laying construction of loudspeaker |
| WO2009016743A1 (en) * | 2007-07-31 | 2009-02-05 | Pioneer Corporation | Speaker apparatus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05207592A (en) * | 1992-01-27 | 1993-08-13 | Mitsubishi Electric Corp | Speaker |
| JPH06205493A (en) * | 1992-12-28 | 1994-07-22 | Toa Corp | Device for extracting vibrational displacement of speaker unit |
| JP2001346291A (en) * | 2000-06-05 | 2001-12-14 | Sony Corp | Loudspeaker system |
| CN101227767A (en) * | 2008-01-29 | 2008-07-23 | 歌尔声学股份有限公司 | Minitype moving-coil type electro-acoustic conversing device |
| CN201153323Y (en) * | 2008-01-29 | 2008-11-19 | 歌尔声学股份有限公司 | Micro moving-coil type electro-acoustic conversion device |
-
2009
- 2009-01-30 CN CN201410657913.0A patent/CN104320746B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201025732Y (en) * | 2007-03-09 | 2008-02-20 | 富港电子（东莞）有限公司 | Loudspeaker |
| WO2009016743A1 (en) * | 2007-07-31 | 2009-02-05 | Pioneer Corporation | Speaker apparatus |
| CN201134910Y (en) * | 2007-12-24 | 2008-10-15 | 宁波东威电子有限公司 | Terminal conducting wire laying construction of loudspeaker |
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