CN110418254A - Sounding device monomer, sounding module and electric terminal - Google Patents
Sounding device monomer, sounding module and electric terminal Download PDFInfo
- Publication number
- CN110418254A CN110418254A CN201810717437.5A CN201810717437A CN110418254A CN 110418254 A CN110418254 A CN 110418254A CN 201810717437 A CN201810717437 A CN 201810717437A CN 110418254 A CN110418254 A CN 110418254A
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- lead
- magnetic
- component
- sounding device
- magnetic portion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention discloses a kind of sounding device monomer, sounding module and electric terminals.Including magnetic circuit system, vibration component and circuit board；Magnetic circuit system includes magnetic yoke and the center magnetic portion and side magnetic portion that are arranged in magnetic yoke, at least one of center magnetic portion and side magnetic portion include permanent magnet, magnetic gap is formed between center magnetic portion and side magnetic portion, sounding device monomer is provided with lead fixing piece in the separate magnetic gap side in side magnetic portion；Circuit board is fixed in sounding device monomer, has pad on circuit board；Vibration component includes vibrating diaphragm and voice coil, vibrating diaphragm is configured to vibrate up and down in sounding device monomer, one end of voice coil is connected on vibrating diaphragm, the other end stretches in the magnetic gap of magnetic circuit system, leads to lead on voice coil, lead from the side in magnetic portion around while magnetic portion and pass through lead fixing piece, lead fixing piece is configured as, at least in the short transverse of sounding device monomer, lead is limited from the upper side and lower side of lead, to improve the reliability of lead.
Description
Technical field
The present invention relates to electroacoustic conversion arts, more particularly it relates to a kind of sounding device monomer；The present invention is also
It is related to a kind of sounding module and electric terminal using this sounding monomer.
Background technique
Sounding device is the important acoustic element in electronic equipment, and electric signal is changed into changing for acoustical signal to be a kind of
It can device.Existing sounding device includes shell, and the magnetic circuit system and vibration component of setting inside the shell.
Wherein, moving-coil type sounding device is widely used in consumer electronics product, and working method can satisfy electronics
The demand of the loudspeaker of product, earpiece.But due to the design feature of moving-coil type sounding device itself, voice coil and vibrating diaphragm
The connectivity problem of polarization problem and voice coil leads is always the technical problem for being very difficult to solve.Moving-coil type sounding device
Two voice coil lines needs of voice coil are drawn and are connected on pad from voice coil, and lead can form traction force, In to voice coil
The vibration of voice coil can be interfered to a certain extent.Voice coil is in vibration in the presence of the risk for pulling apart voice coil leads.Moreover, lead from
The extension shape of position and lead that voice coil is drawn can impact the vibration of voice coil, and it is not right for causing vibrational system
Claim, eventually leads to voice coil and polarize.In some improvement projects in the prior art or it is to sacrifice vibration characteristics,
It is that BL value is not high, the performance of sounding device is caused to be unable to meet demand.
In some improved prior arts, provided in moving-coil type sounding device for carrying, connecting sound
The structure of astragal.But voice coil line is still easy to appear the problems such as vibration floating, bonding agent degumming and bearing structure are detached from.And
And flying height of the voice coil line in sounding device monomer is not easily controlled.
Therefore, it is necessary to improve to moving-coil type sounding device, reduce voice coil leads broken string or a little disconnected with being electrically connected
Risk；Alternatively, issuable polarization phenomena when inhibiting voice coil and vibrating diaphragm work.
Summary of the invention
It is an object of the present invention to provide a kind of new solutions of sounding device monomer.
According to the first aspect of the invention, provide a kind of sounding device monomer, including magnetic circuit system, vibration component and
Circuit board；
The magnetic circuit system includes magnetic yoke and the center magnetic portion and side magnetic portion that are arranged in magnetic yoke, center magnetic portion
Include permanent magnet at least one of side magnetic portion, magnetic gap, the sounding are formed between center magnetic portion and side magnetic portion
Device monomer is provided with lead fixing piece in the separate magnetic gap side in side magnetic portion；
The circuit board is fixed in the sounding device monomer, has pad on the circuit board；
The vibration component includes vibrating diaphragm and voice coil, and the vibrating diaphragm is configured in sounding device monomer up and down
Vibration, one end of the voice coil are connected on the vibrating diaphragm, and the other end stretches in the magnetic gap of magnetic circuit system, the voice coil
On lead to lead, the lead from the side in magnetic portion around while magnetic portion and pass through the lead fixing piece, it is described to draw
Line fixing piece is configured as, at least in the short transverse of sounding device monomer, from the upper side and lower side of lead limitation described in draw
Line, the lead are electrically connected with pad formation.
Optionally, the lead fixing piece includes the first component extended to magnetic yoke direction and extends to vibrating diaphragm direction
Second component, the first component and second component are oppositely arranged, and there are gaps between the first component and second component, described
Gap is passed through for the lead.
Optionally, there is perforation, the perforation is passed through for the lead in the lead fixing piece.
Optionally, the magnet when magnetic portion includes and side magnetic conductive board, the magnet when magnetic conductive board lid is located at described
On；
The side of the separate magnetic gap of the side magnet is formed with pad, described when magnetic conductive board has and extends to described
The crimp of the side of the separate magnetic gap of magnet；
Alternatively, the magnetic yoke has the pad for the separate magnetic gap side for extending to the side magnet, the side magnetic conductive board
The crimp of side with the separate magnetic gap for extending to the side magnet；
The pad and crimp are respectively as the second component and the first component.
Optionally, the lead fixing piece bonding or injection molding are fixed on the separate magnetic gap side in side magnetic portion.
Optionally, the lead fixing piece is elastic component.
Optionally, the first component and/or second component are elastic component.
Optionally, the top surface of the first component and/or second component includes top planes, the first component and/or
Second component is formed with the first inclined surface, the lead in the two sides of the length direction along side magnetic portion of top planes
It is fixed at the top planes.
Optionally, side magnetic portion is formed with opening in the position for corresponding to voice coil and drawing lead, and the lead is from described
Opening detour extends the outside around to side magnetic portion, and the line segment that the lead extends to lead fixing piece from voice coil is hanging
In sounding device monomer.
Optionally, four leads are led on the voice coil, wherein the extraction location of two leads is located at the voice coil
Side, in addition the extraction location of two leads is located at the other side of the voice coil, and the separate magnetic gap side in side magnetic portion is set
It sets there are two lead fixing piece, two leads positioned at voice coil the same side extend through on the same lead fixing piece.
Optionally, the edge part of the vibrating diaphragm is fixed on the top in side magnetic portion；
Projection of the vibrating diaphragm on its direction of vibration is located within the scope of the exterior contour of the magnetic circuit system.
Another aspect provides a kind of sounding module, including module casing and it is mounted in module casing
Above-mentioned sounding device monomer.
Another aspect provides a kind of electric terminals, including terminal shell, and are mounted in terminal shell
Above-mentioned sounding device monomer, or the above-mentioned sounding module being mounted in terminal shell.
According to one embodiment of the disclosure, connection type of the lead in sounding device monomer is improved, improves and draws
The connection reliability of line.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and
Its advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and
Illustrate principle for explaining the present invention together with it.
Fig. 1 is the axonometric drawing of the internal structure for the sounding device monomer that embodiment of the present invention provides；
Fig. 2 is the partial enlarged view of Fig. 1；
Fig. 3 is the fragmentary side cross-sectional view of sounding device monomer shown in Fig. 2；
Fig. 4 is the side sectional view of the internal structure for the sounding device monomer that one embodiment of the present invention provides.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this hair
Bright and its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain item exists
It is defined in one attached drawing, then in subsequent attached drawing does not need that it is further discussed.
The present invention provides a kind of improved sounding device monomer, which includes magnetic circuit system, vibration group
Part and circuit board.The sounding device monomer can be applied in sounding module and in electric terminal.
As shown in Figure 1, the magnetic circuit system includes magnetic yoke and the center magnetic portion and side magnetic portion that are arranged in magnetic yoke, institute
It states side magnetic portion to be arranged around center magnetic portion, there are certain interval between side magnetic portion and center magnetic portion, which is used for structure
At the magnetic gap in magnetic circuit system.At least one in center magnetic portion and side magnetic portion includes permanent magnet.Center magnetic portion and side magnetic
Portion uniform magnetic field in formation center at magnetic gap, for driving vibration component to vibrate.The present invention be not intended to limit center magnetic portion and
The specific constructive form in side magnetic portion can be combined according to the product structure and performance requirement of practical application with different components
Constitute center magnetic portion and side magnetic portion.For example, center magnetic portion includes center magnetic in the embodiment shown in Fig. 3,4
Iron and center magnetic conductive board 14, the magnet 12 when magnetic portion then includes and side magnetic conductive board 13.In other embodiments, institute
Stating center magnetic portion can also be made of T shape magnet, the side magnetic portion then annular magnetic conductive part by being set in around T shape magnet.It is special
Not, the magnetic circuit system is provided with lead fixing piece 101, the lead fixing piece in the separate magnetic gap side in side magnetic portion
101 for carrying, being fixedly connected the lead 22 for extending to thereon or extending therefrom and cross.
As shown in Figure 1, the circuit board 3 is fixed in the sounding device monomer, there is pad on circuit board 3
31.The circuit board 3 is used for by transmission of sound signals into vibration component, and then vibration component is made to generate vibration, sounding.
The vibration component includes vibrating diaphragm and voice coil, and one end of the voice coil is connected on the vibrating diaphragm, the vibrating diaphragm
Edge can be fixed on inside sounding device monomer.Voice coil is suspended in sounding device monomer by vibrating diaphragm, and voice coil is far from vibrating diaphragm
One end can stretch in the magnetic gap of magnetic circuit system formation.Vibrating diaphragm, can be in sounding device monomer under the drive of voice coil
Along the longitudinal direction of monomer, vibrate up and down.As shown in Figs 1-4, lead 22 is led on the voice coil 21, the lead 22 is used for will
Voice signal is imported into voice coil 21, and lead 22 is electrically connected with the pad 31 on circuit board 3, forms signal conduction.From described
The lead 22 drawn on voice coil 21 is not the region directly in linear extension to circuit board 3 where pad 31.In the present invention
Technical solution in, voice coil 21 is located at the periphery of the inside in side magnetic portion, center magnetic portion.After lead 22 is drawn from voice coil 21, first
Side magnetic portion is extended around, the side of the separate magnetic gap in side magnetic portion is extended to.The lead fixing piece is arranged to, at least
It being capable of height along the up-down vibration direction of vibrating diaphragm, from the upper side and lower side of lead to the lead in sounding device monomer
Degree position is limited；That is, in the short transverse of sounding device monomer, from the position of upper and lower two sides limitation lead.It avoids drawing
The phenomenon that line segment appearance that line is fixed in sounding device monomer floats up and down, collides with vibration vibration of membrane.
Preferably, the lead 22 from the side in magnetic portion around to while magnetic portion periphery, rather than from the top in side magnetic portion
It bypasses.The side magnetic can have the structures such as opening, aperture, gap in portion, extend there through carry out coiling for lead, the present invention
The structure in opposite side magnetic portion is not limited.Further, lead 22 extends to the lead fixing piece 101 positioned at side magnetic portion periphery
In, it is electrically connected again with the formation of pad 31 later.The lead 22 can be by modes and the lead fixing piece 101 such as being bonded, welding
It is fixedly connected.There are gap, perforation or other structures, so that lead 22 can be solid from lead in the lead fixing piece 101
Determine to pass through in part 101.Lead fixing piece 101 by gap clamping anchor leg 22 or radially constrains effect by perforation
Anchor leg 22.At least, the lead fixing piece can play the role of restriction site from the two sides up and down of lead.
Technical solution proposed by the present invention is lead from providing the line segment between voice coil is drawn out to and is electrically connected with pad
To the lead fixing piece being fixedly connected, restriction site acts on.Compared with the existing technology, lead consolidating in sounding device monomer
Fixed connection is more stable, and the radial position-limiting action applied by part line segment of the lead fixing piece to lead, the height of lead obtains
To effective limitation.Further, lead be not easy to cause because of voice coil vibrations lead broken string, rise and fall or be detached from pad, dislocation etc.
Problem significantly improves the stability of lead.
On the other hand, for lead around side magnetic portion periphery is set to after drawing in voice coil, the extended distance passed through is longer, can
Elastically-deformable amount is bigger.In this way, lead causes voice coil to pull active force relative reduction, correspondingly, when voice coil vibrations also not
The defects of easily causing lead to break.The application reliability of sounding device monomer is higher.
Preferably, the lead fixing piece may include the first component extended to magnetic yoke direction and prolong to vibrating diaphragm direction
The second component stretched, i.e. lead fixing piece realize position-limiting action to lead by two part collective effects.As in Figure 2-4,
The first component 1011 and second component 1012 are oppositely arranged, and between the two there are gap, which therefrom wears for lead 22
It crosses.Clamping effect between the first component 1011 and second component 1012 is fixed on lead 22 in gap, is not in up and down
The phenomenon that floating.The present invention does not carry out in sounding device monomer to how the first component and second component form or be arranged
Limitation, can be designed according to the requirement of practical application.
In another optional embodiment, perforation can have in the lead fixing piece, the length of the perforation can
To match with the length in side magnetic portion, for accommodating lead.The lead is passed through from the perforation, the lead in perforation
The problems such as line segment is limited by the position perforated, and fluctuating, off-line, broken string will not occur.It is solid that the present invention is not intended to limit the lead
Determine how portion forms perforation, can be and directly form perforation in a global facility, be also possible to mutual by two components
It fastens, constitutes above-mentioned perforation by forming groove on the surface mutually fastened.
In the embodiment shown in Fig. 2-4, the magnetic circuit system may include while magnet 12 and while magnetic conductive board 13, such as
Shown in Fig. 3, it is described while magnetic conductive board 13 lid be located at described while magnet 12 on, i.e., while magnetic conductive board 13 with while magnet 12 overlap.Figure
Shown in 3 when magnetic conductive board 13 is located on the downside of magnet 12, the magnetic when the lid of magnetic conductive board 13 is located at that the present invention describes is also belonged to
On iron 12.The side of the separate magnetic gap of the side magnet 12 is formed with pad, and the pad constitutes the second component
1012.The pad can from while magnet 12 outer surface further to while magnet outside protrude, or in other forms
It constitutes, the present invention limits not to this.Preferably, the top surface of the pad and the top surface of the side magnet 12 are staggered, so that
Pad can more accurately form lead and position.Further, the magnet 12 when magnetic conductive board 13 has and extends to described
Separate magnetic gap side crimp, which, which extends, surrounds on the outer surface of side magnet 12.The end face of the crimp
It can be used for constituting the first component 1011, the lead 22 drawn from voice coil 21 can be around to 12 outside of side magnet, in turn
It is inserted into the gap between pad and crimp.The pad and crimp combination constitute lead fixing piece of the present invention.
Alternatively, the magnetic yoke, which has, to be extended between the separate magnetic of the side magnet in another similar embodiment
The above-mentioned pad of gap side, the crimp of the side of the separate magnetic gap of the magnet when magnetic conductive board has and extends to described, by
Magnetic yoke and side magnetic conductive board respectively constitute second component and the first component.
Optionally, the magnet 12 and side magnetic conductive board 13 when magnetic portion can include altogether two or four, wherein can be with
Only two while magnet 12 and while magnetic conductive board 13 periphery formed lead fixing piece.Opposite side magnetic portion does not specifically include the present invention
It is several while magnet and while magnetic conductive board, which while magnet and while magnetic conductive board periphery be formed with lead fixing piece and limited.Having
Body implement when, can with specific reference to sounding device monomer performance and shape need configure.It is real shown in Fig. 1,2
It applies in mode, when magnetic portion includes four, magnet 12 and four side magnetic conductive boards 13, four side magnet 12 surround approximate rectangle
Structure, and be formed with opening between two adjacent sides magnet 12, lead to outside on the inside of the magnetic portion of side convenient for lead 22.It is right
Claim distribution it is two shorter while magnet 12 and while magnetic conductive board 13 outside be formed with lead fixing piece 101, two longer sides
The outside of magnet 12 is then without lead fixing piece 101.Lead 22 is drawn from the voice coil 21 being located in magnetic gap 15, such as Fig. 3,4
It is shown, by adjacent two openings between 12 end of magnet around to while the outside of magnet 12 lead fixing piece 101 on.
The advantages of embodiment of above, is, on the one hand, by while magnet or while magnetic conductive board formed lead fixing piece knot
Structure feature is simple, process and assembly technology is simple, and the production cost of sounding device monomer will not obviously increase.On the other hand, side
Magnet or side magnetic conductive board are located at the outermost of entire magnetic circuit system, form lead fixing piece on the outside, can be maximum
Increase the development length of lead, reduces the risk of lead broken string.And the overall structure shape and space hold of sounding device monomer
It can't be significantly affected.Further, while magnet, while magnetic conductive board be all to be fixed on the intracorporal stabilizers of sounding device list
Part, lead extend to lead fixing piece thereon and are fixed, and stability is higher, are not susceptible to the problems such as shaking.
Another optional embodiment is, as shown in figure 4, it is described while magnet 12 and while magnetic conductive board 13 periphery it is straight
Connect the independent lead fixing piece 101 of setting.Lead fixing piece 101 can attach, be bonded in while magnet 12 and while magnetic conductive board 13 outside
It on surface, or is fixed thereon by way of injection molding, the present invention does not limit specific connection type.
Further, lead fixed part 101 can be divided into the mutually independent first component 1011 and second component 1012, be also possible to
The first component 1011 and second component 1012 interconnected, the present invention also limits not to this.First shown in Fig. 4
It is mutually indepedent between component 1011 and second component 1012, do not have connection.And the first component 1011 shown in Fig. 2 and
Then there is region interconnected between two components 1012.
In addition, accommodating the embodiment of lead using perforation for lead fixing piece 101, lead fixing piece can be one
A overall structure, wherein having perforation.Lead fixing piece 101 is whole to be attached on the outer surface in side magnetic portion.
Preferably, the lead fixing piece can be elastic component, be had relative movement by the traction of voice coil in lead
Trend when, flexible lead fixing piece can by elastic deformation absorb lead vibration, to be protected to lead
Shield.Further, the contact between elastic component and lead is flexible contact, avoids occurring between lead fixing piece and lead rigid
Property collision, friction phenomena such as, the problems such as further decreasing lead impaired, broken string.Optionally, the lead fixing piece can be by
The materials such as foam, elastic rubber are made, and are formed by way of bonding agent is bonded or is molded connection with side magnetic portion later solid
Fixed connection.
In the embodiment that lead fixing piece is divided into the first component and second component, one of both can be elastic component,
And another still can then have while magnet or while magnetic conductive board or other components without favorable elasticity deformability be made.
For example, the first component is elastic component, second component is not elastic component, the position of the mutual clamping limitation lead in the end face of the two.Or
Optionally, the first component and second component are elastic component to person.The present invention does not limit the use of elastic component.
Optionally, in the embodiment that lead fixing piece is divided into the first component and second component, 1011 He of the first component
Second component 1012 may include top planes, and as shown in Figure 1, 2, the top planes are used for and wire contacts, fixed, folder
Close lead.The top planes of the lead fixing piece 101 extend along the length direction in side magnetic portion.Fig. 1, shown in 2
While magnetic portion or while magnet 12 be rectangle structure, the top planes of the first component 1011 and second component 1012 are then along length
Rectangular long axis extends.Lead 22 around the part on the outside of magnetic portion also along while magnetic portion length direction fair line, clamping exists
Between the first component and the top planes of second component.In other embodiments, such as side magnetic portion is not rectangle, and
It is to be arc-shaped, then above-mentioned length direction can be understood as the direction extended along circular arc.
Particularly, the top surface of the first component and/or second component further comprises the first inclined surface.Such as Fig. 1,2 institutes
Show that also there is the first inclined surface 1013 on the first component 1011, along the length direction in side magnetic portion, first inclination
Face 1013 is located at the two sides of top planes.The top planes are located at intermediate, top surface on the first component and/or second component
Highest position, first inclined surface are then located at the two sides of top planes, highly gradually decrease.The lead 22 at least may be used
To contact, be fixedly connected with the top planes.And the region that the lead corresponds to the first inclined surface 1013 can then hang
It on the first inclined surface 1013, or attaches, be connected on the first inclined surface 1013, the present invention limits not to this.If
Lead is not attached or is connect with the first inclined surface, then hanging part can be swung with the vibration of voice coil.This feature extends
The length that lead can be swung reduces the active force mutually pullled between lead and voice coil.If lead and the first inclined surface
It attaches or connects, then can increase the connection length of lead Yu lead fixing piece, improve the stability of lead, prevent lead from sending out
Raw broken string, is detached from the problem of pad at dislocation.Whether specific lead connect with the first inclined surface, can be according to practical application
Situation is selected.
Implementation in the top planes along the two sides of the length direction in side magnetic portion to the first inclined surface 1013 is connected to
In mode, lead 22 either from while the both ends Ci Bu which side around to while the periphery of magnet 12, lead 22 is in lead fixing piece 101
On all first pass through inclined surface, be connected to top planes later.By this preferably to the first component and/or second component
Top design method, the adaptability of the practical application of lead fixed part can be improved, and improve the reliable of lead 22
Property.
Preferably, the lead passes through the top surface bonding connection of damping glue and the lead fixing piece.The bonding of damping glue
Form belongs to flexible connection, and lead still is able to have one relative to the top surface of lead fixing piece under the bonding effect of damping glue
Determine flying ability.In voice coil vibrations work, lead can be to a certain extent with voice coil vibrations, and being connected to for lead is drawn
Line segment on line fixing piece still is able to slight fluctuation under the action of damping glue.In this way, on the one hand preventing lead by excessive
Traction force and break, another aspect damping glue can sponge the vibration on lead, so that for being connected to
The lead line segment of pad will not vibrate, and reliability of electrical connection is significantly improved.Further, in the above-mentioned first component
And/or the top surface of second component includes, if lead is suspended from inclined surface, tilting in the embodiment of inclined surface and top planes
Damping glue can also be coated between face and lead, thus the performance for enhancing the buffering of lead, absorbing vibration.
Preferably, side magnetic portion is formed with opening at the position for leading to lead corresponding to voice coil.As Fig. 1-3 institute
Show, forms above-mentioned opening between the end of the adjacent two side magnet 12 being of a straight line type.The lead 22 is circuitous from opening
It returns, the curved outside for extending to side magnetic portion 12, and then is attached on the lead fixing piece 101 in 12 outside of side magnet.Pass through this
Kind design, on the one hand can save space, on the other hand, effectively extend lead from voice coil to the line between lead fixing piece
The pendulous tank of section.
Optionally, four leads are led on the voice coil, wherein the extraction location of two leads is located at the voice coil
Side, in addition the extraction location of two leads is located at the other side of the voice coil.The separate magnetic in the side magnetic portion of sounding device monomer
There are two lead fixing pieces for the side setting in gap.It is formed for example, voice coil integrally combines coiling by two voice coil lines, two sounds
Four leads of two ends of astragal respectively as extraction.Voice coil integrally turns to rectangular ring structure, wherein two leads
It is drawn from a short side of voice coil, another two leads are drawn from another short side of voice coil.Further, it is located at voice coil
Two leads of the same side extend on the same lead fixing piece, and two leads can be around being used to form lead
The side magnetic portion of fixing piece, the present invention limit not to this.
So, the coiling of voice coil is wound jointly using two voice coil lines, and two voice coil lines are connected in parallel, this
Two lead parallel connections of sample can be thinner than the line footpath of single line under the premise of similar resistance, so that voice coil is thinner, between magnetic
Gap can be narrower, has higher BL value, and then improve the sensitivity of vibrational system, improves the vocal performance of sounding monomer.
Optionally, the sounding device monomer is integrally in rectangular configuration, and as shown in Figure 1, 2, the side magnetic part is four pieces
Linear side magnetic portion, the circuit board 3 are then overlapped with side magnetic portion.Particularly, on circuit board 3 pad 31 position
At the both ends in the side magnetic portion with lead fixing piece 101.In this way, lead 22 can be certainly after lead fixing piece 101
In right fair line to pad 31, convenient for forming electrical connection.Optionally, as shown in Figure 1, 2, on a lead fixing piece 101
Carry two leads 22.The end of two leads 22 is connected to the pad 31 at the both ends in linear type side magnetic portion
On, the detour extending direction of two leads 22 is opposite.
It optionally, can be in center magnetic portion in order to which the magnetic induction line for alloing magnetic circuit system is gathered near magnetic gap 15
Including centring magnet and center magnetic conductive board 14, the lid of center magnetic conductive board 14 is located on centring magnet, to gather the magnetic line of force.The center
Magnetic conductive board 14 for example can be by way of bonding in solid heart magnetic portion.Magnet and side magnetic conductive board 13, side when magnetic portion may include
The lid of magnetic conductive board 13 is located on the magnet of side.In other embodiments, side magnetic conductive board can also be using the cyclic structure of one, together
When be bonded on the surface of multiple side magnet.
Particularly, sounding device monomer provided by the invention does not have the shell for carrying each component, the magnetic circuit system
It unites and itself constitutes the main structure of sounding device monomer.The vibrating diaphragm is exposed to the top of sounding device monomer, the vibrating diaphragm
Edge be fixed on above the magnetic portion of side, voice coil is connected to the central area of vibrating diaphragm.Throwing of the vibrating diaphragm on the direction of vibration of its own
Shadow is located within the scope of the outer profile of magnetic circuit system.It is acted on by the suspension of vibrating diaphragm, the one end of voice coil far from vibrating diaphragm can be suspended from institute
It states in magnetic gap.Outside the outer surface of the magnetic circuit system is directly exposed to, which can pass through magnetic circuit system
It is fit directly into sounding device mould group or electric terminal, no longer needs to additionally configure shell.
This sounding monomer can be directly installed in module casing, when application to form sounding module.Also
It can be, which is mounted directly in terminal shell, form electric terminal.Either in the form of sounding module
It is mounted in terminal shell, forms electric terminal, no longer illustrate herein.The present invention provides a kind of sounding modules, wherein
Including module casing and above-mentioned sounding device monomer, sounding device monomer is arranged in module casing.The present invention also provides one
Kind of electric terminal, including terminal shell, terminal can in be provided with sounding device monomer, or be provided with and carry hair
The sounding module of acoustic device monomer.
Although some specific embodiments of the invention are described in detail by example, this field
It is to be understood by the skilled artisans that example above is merely to be illustrated, the range being not intended to be limiting of the invention.This field
It is to be understood by the skilled artisans that can be repaired without departing from the scope and spirit of the present invention to above embodiments
Change.The scope of the present invention is defined by the appended claims.
Claims (13)
1. a kind of sounding device monomer, which is characterized in that including magnetic circuit system, vibration component and circuit board；
The magnetic circuit system includes magnetic yoke and the center magnetic portion being arranged in magnetic yoke and side magnetic portion, center magnetic portion and side magnetic
At least one of portion includes permanent magnet, and magnetic gap, the sounding device list are formed between center magnetic portion and side magnetic portion
Body is provided with lead fixing piece in the separate magnetic gap side in side magnetic portion；
The circuit board is fixed in the sounding device monomer, has pad on the circuit board；
The vibration component includes vibrating diaphragm and voice coil, and the vibrating diaphragm is configured to vibrate up and down in sounding device monomer,
One end of the voice coil is connected on the vibrating diaphragm, and the other end stretches in the magnetic gap of magnetic circuit system, is drawn on the voice coil
Have a lead, the lead from the side in magnetic portion around while magnetic portion and pass through the lead fixing piece, the lead is fixed
Part is configured as, and at least in the short transverse of sounding device monomer, limits the lead from the upper side and lower side of lead, described
Lead is electrically connected with pad formation.
2. sounding device monomer according to claim 1, which is characterized in that the lead fixing piece includes to magnetic yoke direction
The first component of extension and the second component extended to vibrating diaphragm direction, the first component and second component are oppositely arranged, and first
There are gap between component and second component, the gap is passed through for the lead.
3. sounding device monomer according to claim 1, which is characterized in that have perforation, institute in the lead fixing piece
Perforation is stated to pass through for the lead.
4. sounding device monomer according to claim 2, which is characterized in that the magnet when magnetic portion includes and side magnetic conduction
Plate, it is described when magnetic conductive board lid is located at described on magnet；
The side of the separate magnetic gap of the side magnet is formed with pad, the magnet when magnetic conductive board has and extends to described
The crimp of side far from magnetic gap；
Alternatively, the magnetic yoke has the pad for the separate magnetic gap side for extending to the side magnet, the side magnetic conductive board has
Extend to the crimp of the side of the separate magnetic gap of the side magnet；
The pad and crimp are respectively as the second component and the first component.
5. sounding device monomer according to claim 1, which is characterized in that the lead fixing piece bonding or injection molding are fixed
In the separate magnetic gap side in side magnetic portion.
6. sounding device monomer according to claim 1, which is characterized in that the lead fixing piece is elastic component.
7. sounding device monomer according to claim 2, which is characterized in that the first component and/or second component are
Elastic component.
8. sounding device monomer according to claim 2, which is characterized in that the first component and/or second component
Top surface includes top planes, and the first component and/or second component are in the length side along side magnetic portion of top planes
To two sides, be formed with the first inclined surface, the lead is fixed at the top planes.
9. sounding device monomer according to claim 1, which is characterized in that draw corresponding to voice coil in side magnetic portion
The position of line is formed with opening, and the lead extends the outside around to side magnetic portion, the lead from the opening detour
The line segment for extending to lead fixing piece from voice coil is suspended in sounding device monomer.
10. sounding device monomer according to claim 9, which is characterized in that four leads are led on the voice coil,
In the extraction locations of two leads be located at the side of the voice coil, in addition the extraction location of two leads is located at the another of the voice coil
Side, the separate magnetic gap side setting in side magnetic portion is there are two lead fixing piece, two leads positioned at voice coil the same side
It extends through on the same lead fixing piece.
11. sounding device monomer according to claim 1, which is characterized in that
The edge part of the vibrating diaphragm is fixed on the top in side magnetic portion；
Projection of the vibrating diaphragm on its direction of vibration is located within the scope of the exterior contour of the magnetic circuit system.
12. sounding module, which is characterized in that including module casing and be mounted in module casing as claim 1-11 appoint
Sounding device monomer described in one.
13. electric terminal, which is characterized in that including terminal shell, and be mounted in terminal shell according to claim 1 extremely
11 described in any item sounding device monomers, or the sounding mould according to claim 12 being mounted in terminal shell
Group.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810395905 | 2018-04-27 | ||
| CN2018103959051 | 2018-04-27 |
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| Publication Number | Publication Date |
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| CN110418254A true CN110418254A (en) | 2019-11-05 |
| CN110418254B CN110418254B (en) | 2022-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810717437.5A Active CN110418254B (en) | 2018-04-27 | 2018-07-03 | Sound production device monomer, sound production module and electronic terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110418254B (en) |
| WO (1) | WO2019205656A1 (en) |
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| WO2021104006A1 (en) * | 2019-11-28 | 2021-06-03 | 华为技术有限公司 | Electroacoustic transducer, loudspeaker module and electronic device |
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|---|---|---|---|---|
| CN113079444A (en) * | 2020-01-06 | 2021-07-06 | 歌尔股份有限公司 | Vibration assembly and sound production device |
| CN113423047B (en) * | 2021-06-11 | 2022-09-20 | 歌尔股份有限公司 | Elastic support piece and electronic device |
| CN114257926B (en) * | 2021-11-30 | 2024-01-02 | 歌尔股份有限公司 | Sound producing device and electronic equipment |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2019205656A1 (en) | 2019-10-31 |
| CN110418254B (en) | 2022-06-07 |
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