CN106792390A - Flat film sound-producing device - Google Patents
Flat film sound-producing device Download PDFInfo
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- CN106792390A CN106792390A CN201611235965.4A CN201611235965A CN106792390A CN 106792390 A CN106792390 A CN 106792390A CN 201611235965 A CN201611235965 A CN 201611235965A CN 106792390 A CN106792390 A CN 106792390A
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- voice coil
- producing device
- sound
- flat
- switching section
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
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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 flat film sound-producing device, including：Flat vibrating diaphragm；Voice coil loudspeaker voice coil conductor layer, voice coil loudspeaker voice coil conductor layer is arranged on a side surface of flat vibrating diaphragm, voice coil loudspeaker voice coil conductor layer is laid by a plurality of wire annulus being arranged concentrically and is formed, every the radius of wire annulus is different, connected by radius switching section between two adjacent wire annulus, each bar wire annulus is sequentially connected in series according to the order of decreasing radius, one section of direction switching section is at least included in radius switching section, when voice coil loudspeaker voice coil conductor layer is passed through electric current, direction switching section inverts the sense of current in two adjacent wire annulus；Magnet assemblies, at least include two annular magnets being arranged concentrically, the quantity of annular magnet suppose big by 1 to the quantity of switching section, annular magnet is coaxial with wire annulus, position where the switching section of direction is corresponding with the interstitial site between two adjacent annular magnets, and the magnetic pole of the gap location of adjacent two annular magnets between is identical.
Description
Technical field
The invention belongs to sound-producing device technical field, in particular it relates to a kind of flat film sound-producing device.
Background technology
Flat film loudspeaker is that the voice coil loudspeaker voice coil of loudspeaker and diaphragm are combined into one, and voice coil loudspeaker voice coil wire is by very thin metallic conductor structure
Into and it is open and flat in vibrating diaphragm plane, magnetic circuit part is distributed across the parallel magnets of surface sound film one or both sides, when to flat
By electromagnetism stress during film coil input current signal, surface sound film is driven to be vibrated in the gap of magnet side or centre,
So as to send sound.Such flat film loudspeaker vibrational system quality is very light, transient response preferably, and product radiating efficiency compared with
Height, resistance to power is good etc..
The distribution mode of the coil 02 of existing flat film loudspeaker 01 as shown in figure 1, coil 02 is arranged with similar " M " type,
The major part of coil 02 has bending part along linear extension in overhang.Match with this flat vibrating diaphragm and use
Bar magnet, is equidistantly disposed with multiple bar magnets, bearing of trend and the edge on coil 02 of bar magnet in loudspeaker
Linearly extended line segment is parallel.The average flux density of this flat vibrating diaphragm is not high, and coil 02 has bending region, a portion
Bending region is distributed in beyond the effective magnetic field of magnet, is not contributed acting power；Although another part bending region point
Cloth is unsatisfactory for left hand rule substantially in effective magnetic field, but because bearing of trend has parallel trend with the magnetic induction line of magnet,
Actually active line length is shorter, and the contribution to producing point magnetic force is less.So, what existing flat film loudspeaker was subject to drives
Power is smaller, and the acoustic pressure of radiation is relatively low.
Thus, it is necessary to be improved to the coil cabling mode on flat vibrating diaphragm, or improve the magnetic in flat-die loudspeaker
Line structure, to improve the utilization rate of coil.
The content of the invention
It is an object of the present invention to provide a kind of new solution of flat film sound-producing device.
According to the first aspect of the invention, there is provided a kind of flat film sound-producing device, including：
Flat vibrating diaphragm；
Voice coil loudspeaker voice coil conductor layer, the voice coil loudspeaker voice coil conductor layer is arranged on a side surface of the flat vibrating diaphragm, the voice coil loudspeaker voice coil conductor layer
Laid by a plurality of wire annulus being arranged concentrically and formed, every radius of the wire annulus is different, adjacent two wires circle
Connected by radius switching section between ring, wire annulus is sequentially connected in series according to the order of decreasing radius described in each bar, half quarter sawing
Changing at least includes one section of direction switching section in section, when the voice coil loudspeaker voice coil conductor layer is passed through electric current, the direction switching section makes adjacent
Two wire annulus in the sense of current reversion；
Magnet assemblies, the magnet assemblies at least include two annular magnets being arranged concentrically, the number of the annular magnet
Amount analogy is big by 1 to the quantity of switching section, and the magnet assemblies are located at the side of the flat vibrating diaphragm, and the annular magnet is led with described
Line annulus is coaxial, and the position where the direction switching section is corresponding with the interstitial site between two adjacent annular magnets, phase
The magnetic pole of gap location of the two adjacent annular magnets between is identical；
Sound-producing device housing, the sound-producing device housing is configured for carrying the annular magnet peace vibrating diaphragm.
Alternatively, there are two sections of direction switching sections, the magnet assemblies set with one heart including three on the voice coil loudspeaker voice coil conductor layer
The annular magnet put.
Alternatively, the spacing between the adjacent two wire annulus is more than 0.3mm.
Alternatively, the flat film sound-producing device includes magnet assemblies described in two groups, and magnet described in two groups is separately positioned on institute
State the both sides of flat vibrating diaphragm.
Alternatively, the flat film sound-producing device includes circular magnetic conductive board, and the circular magnetic conductive board is fixed on the sounding dress
Put in housing, the magnet assemblies are fixedly installed on the circular magnetic conductive board, there is sound transmission aperture, institute on the circular magnetic conductive board
The interstitial site stated between sound transmission aperture and the annular magnet is corresponding.
Alternatively, the edge of the flat vibrating diaphragm has the first signal tie point and secondary signal tie point, radius maximum
The wire annulus is electrically connected with the first signal tie point, in the minimum wire annulus of radius or voice coil loudspeaker voice coil conductor layer
The wire of the heart is electrically connected with the secondary signal tie point.
Alternatively, the flat vibrating diaphragm is rounded, and the edge of the flat vibrating diaphragm has ring stiffener, the side of the flat vibrating diaphragm
Edge is fixed on the sound-producing device housing.
Alternatively, stiffener rings are provided with the voice coil loudspeaker voice coil conductor layer, the stiffener rings are connected positioned at the direction switching section
Two wire annulus between, two wire annulus are separated, in the stiffener rings have breach, the direction switching section
Positioned at the indentation, there.
Alternatively, the sound-producing device housing includes fore shell and rear shell, and the circular magnetic conductive board is fixedly installed in the rear
On shell, rear acoustic aperture is provided with the rear shell, tuning screen cloth, the tuning screen cloth covering are coated with the outer surface of the rear shell
The rear acoustic aperture, the fore shell is fastened on shell in the rear, and the flat vibrating diaphragm is near the fore shell.
Alternatively, two weld tabs are provided with the sound-producing device housing, two weld tabs connect with the first signal respectively
Contact and secondary signal tie point are electrically connected.
One of the invention has the technical effect that the utilization that voice coil loudspeaker voice coil is improve by the structure improvement to voice coil loudspeaker voice coil and magnet assemblies
Rate.
By referring to the drawings to the detailed description of exemplary embodiment of the invention, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
The accompanying drawing for being combined in the description and constituting a part for specification shows embodiments of the invention, and even
It is used to explain principle of the invention together with its explanation.
Fig. 1 is the structural representation of flat vibrating diaphragm in the prior art；
Fig. 2 is the part explosive view of the flat film sound-producing device that the present invention is provided；
Fig. 3 is the positive structure schematic of the flat vibrating diaphragm that the present invention is provided；
Fig. 4 is the structural representation of the magnet assemblies in the flat film sound-producing device that the present invention is provided；
Fig. 5 is the side cross sectional views of the magnetic circuit component peace vibrating diaphragm；
Fig. 6 is the structure schematic diagram of the flat vibrating diaphragm that the present invention is provided；
Fig. 7 is the structural representation of the rear shell of the flat film sound-producing device that the present invention is provided.
Specific embodiment
Describe various exemplary embodiments of the invention in detail now with reference to accompanying drawing.It should be noted that：Unless had in addition
Body illustrates that the part and the positioned opposite of step, numerical expression and numerical value for otherwise illustrating in these embodiments do not limit this
The scope of invention.
The description only actually at least one exemplary embodiment is illustrative below, never as to the present invention
And its any limitation applied or use.
May be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as a part for specification.
In all examples shown here and discussion, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further discussed in subsequent accompanying drawing.
The invention provides a kind of flat film sound-producing device, the flat film sound-producing device includes flat vibrating diaphragm 1, voice coil loudspeaker voice coil conductor layer 2, magnetic
Iron component and sound-producing device housing, as shown in Figure 2.The sound-producing device housing shakes for carrying the peace of the annular magnet 31
Film 1, the flat vibrating diaphragm 1 and magnet assemblies are arranged in the sound-producing device housing, and flat vibrating diaphragm 1 is relative with magnet assemblies position.
The voice coil loudspeaker voice coil conductor layer 2 is laid on the flat vibrating diaphragm 1, when being passed through the electric current of voice signal in the voice coil loudspeaker voice coil conductor layer 2,
The flat vibrating diaphragm 1 of the driver under stress of voice coil loudspeaker voice coil conductor layer 2 vibrates.
Especially, as shown in figure 3, the voice coil loudspeaker voice coil conductor layer 2 is laid by a plurality of wire annulus 21 being arranged concentrically is formed, often
The radius of wire annulus 21 described in bar is different.Connected by radius switching section 22 between two adjacent wire annulus 21, such as Fig. 3 institutes
Show.Wire annulus 21 is sequentially connected in series according to the order of decreasing radius described in each bar, and all wire annulus 21 are connected into from outside to inside
One circuit pathways.Especially, one section of direction switching section 221 is also at least included in the radius switching section 22, the direction is cut
Section 221 is changed in addition to playing a part of to connect the different wire annulus 21 of radius, the circular direction for changing wire annulus 21 is also acted as
Effect.When being passed through signal code in voice coil loudspeaker voice coil conductor layer 2, the direction switching section 221 makes two adjacent wire annulus
Sense of current reversion in 21.
By taking the flat vibrating diaphragm 1 shown in Fig. 3 as an example, outermost wire annulus 21 clockwise round after by the radius
Switching section 22 is connected on inner side adjacent wires annulus 21, and the wire annulus 21 of inner side is also by half after rounding clockwise
The wire annulus 21 adjacent with inner side of footpath switching section 22 is connected.And the 3rd open traverse annulus 21 is clockwise around one from outside to inside
Zhou Hou, is connected by direction switching section 221 with the 4th open traverse annulus 21 of inner side, and the 4th open traverse annulus 21 is then along inverse
It is connected on the wire annulus 21 of inner side by radius switching section 22 again after being directed around a week of hour hands.It can be seen that, cut by direction
It is opposite to change the circular direction of the two adjacent open traverse annulus 21 of the connection of section 221.This structure design makes to be passed through voice coil loudspeaker voice coil to be led
Flow direction of the signal code of line layer 2 in the wire annulus 21 of the both sides of direction switching section 221 is conversely, around direction upset
180 degree.
The magnet assemblies then at least include two annular magnets 31 being arranged concentrically, the quantity ratio of the annular magnet 31
The quantity of the direction switching section 221 is big by 1.By taking the implementation method shown in Fig. 2-5 as an example, when setting on the voice coil loudspeaker voice coil conductor layer 2
When having direction of both ends switching section 221, the magnet assemblies include three annular magnets 31, and three annular magnets 31 are concentric
Set.The magnet assemblies are located at the side of the flat vibrating diaphragm 1, are be arranged in parallel with the flat vibrating diaphragm 1 substantially, the annular magnet
31 is confronting coaxial with the position of the wire annulus 21.Position where the direction switching section 221 with adjacent two
Interstitial site between annular magnet 31 is corresponding.So, the circular direction of wire annulus 21 often switches once, wire annulus 21
Corresponding annular magnet 31 is different.Further, as shown in figure 5, two adjacent annular magnets 31 are between
The magnetic pole of gap location be identical.
Wire arrangement and the arrangement of magnetic circuit component of the present invention to voice coil loudspeaker voice coil conductor layer are optimized, using multiple annulars
Magnet and a plurality of wire annulus of series connection realize the raising of line length utilization rate.As shown in Figure 4,5, each concentric rows of wire annulus 21
Cloth, makes magnetic induction line more be collected both sides about 31 in annular magnet to neighbouring same pole, improves magnetic induction line with the place of flat vibrating diaphragm 1
The depth of parallelism of plane.So, the Zone Full of wire annulus 21 is substantially perpendicular to the direction of magnetic induction line, in wire annulus 21
The tangential direction of electric current is all the time perpendicular to magnetic induction line direction.According to left hand rule, all line lengths are to producing Lip river on wire annulus
Logical sequence magnetic force contributes, and substantially increases the utilization rate in magnetic field and effective line length of voice coil loudspeaker voice coil conductor layer.Only radius switching section
22 region is parallel to the trend of magnetic induction line, and utilization rate is relatively low.The utilization rate of all line lengths of voice coil loudspeaker voice coil conductor layer 2 can be carried
It is high to more than 95%.The direction switching section 221 makes the direction of signal code invert 180 degree in the gap location of annular magnet 31,
Make the direction of the Lorentz force that voice coil loudspeaker voice coil conductor layer 2 is subject to consistent.
Further, in the case where the efficiency that voice coil loudspeaker voice coil conductor layer 2 obtains Loulun magnetism is improved, flat vibrating diaphragm 1 is in vibration
Bigger amplitude can be produced, the acoustic pressure of sound-producing device and the volume of the sound for producing is improve.
Quantity of the present invention not to the direction switching section is limited, according to the annular magnet that magnet assemblies include
Quantity, those skilled in the art can adjustment direction switching section accordingly quantity.It is more in the quantity of annular magnet, such as 3-
In the case of 4, the effect between relative magnetic pole can make magnetic field collect degree raising, improve the utilization rate in magnetic field.In order that
The Lorentz force direction that voice coil loudspeaker voice coil conductor layer 2 is subject to is consistent, should be in the gap between adjacent annular magnet 31 on voice coil loudspeaker voice coil conductor layer 2
Place sets corresponding direction switching section 221.
Alternatively, the spacing between the adjacent two wire annulus 21 can be more than 0.3mm.Adjacent wire circle
The electric current that keeping appropriately distance between ring can reduce in wire annulus influences each other, and improves the reliability of flat film sound-producing device
Property.Opposite, the spacing between wire annulus crosses conference and causes the space availability ratio on flat vibrating diaphragm to decline.Those skilled in the art
Spacing size between the wire annulus can be designed according to the performance requirement of actual product.
Alternatively, in some embodiments, the flat film sound-producing device can also include two groups of above-mentioned magnet assemblies.Figure
There was only one group of magnet assemblies in implementation method shown in 2-5, the magnet assemblies are located at the side of flat vibrating diaphragm 1.With two groups
In the flat film sound-producing device of magnet assemblies, the annular magnet 31 that two groups of magnet assemblies include is identical, two groups of magnet assemblies difference
Positioned at the both sides of the flat vibrating diaphragm 1.In this embodiment, voice coil loudspeaker voice coil conductor layer 2 is obtained in that stronger Lorentz force, flat to shake
The vibration amplitude that film 1 is produced is bigger, can produce bigger acoustic pressure.
Alternatively, the flat film sound-producing device can also include circular magnetic conductive board 5, as shown in Figure 2.The circular magnetic conductive board
5 magnetic fields for being used to adjust, collect the magnet assemblies, improve the utilization rate in magnetic field.The circular magnetic conductive board 5 can be fixed on institute
State in sound-producing device housing, the magnet assemblies are fixedly installed on the circular magnetic conductive board 5, can using be adhesively fixed wait just
Formula.There is sound transmission aperture 51, as shown in Fig. 2 the position of the sound transmission aperture 51 and the annular magnet 31 on the circular magnetic conductive board 5
Between interstitial site it is corresponding.The sound that the vibration of flat vibrating diaphragm 1 is produced can be by sound transmission aperture 51 to sound-producing device housing unofficial biography
Pass.There can also be outer convex rib position on the edge of the circular magnetic conductive board 5, the outer convex rib position is for blocking circular magnetic conductive board 5
Connect and be fixed on the sound-producing device housing.
Alternatively, the first signal tie point 11 and secondary signal can connect as shown in Fig. 3,6, on the flat vibrating diaphragm 1
Contact 12, two tie points may be located at the edge of flat vibrating diaphragm 1.The first signal tie point 11 and secondary signal tie point 12
For being electrically connected with external electronic device, enable signals to be passed through in the voice coil loudspeaker voice coil conductor layer 2, form signal circuit.Radius is most
The big wire annulus 21 is electrically connected with the first signal tie point 11, as shown in figure 3, the minimum wire circle of radius
Ring 21 or the wire positioned at the center of voice coil loudspeaker voice coil conductor layer 2 are electrically connected with the secondary signal tie point 12, as shown in Figure 6.
Alternatively, the flat vibrating diaphragm 1 is overall rounded, and the edge of the flat vibrating diaphragm 1 has ring stiffener 13.The ring
Shape reinforcement 13 is used to strengthen the structure of the entirety of flat vibrating diaphragm 1, prevents flat vibrating diaphragm 1 from deforming in vibration, assembling.The flat vibrating diaphragm 1
Edge can be fixed on the sound-producing device housing.In other embodiments, can also be provided with the flat vibrating diaphragm
The reinforcement of other structures form, the present invention is limited not to this.
Especially, stiffener rings 23 can be provided with the voice coil loudspeaker voice coil conductor layer 2, as shown in figure 3, the stiffener rings 23 are located at
Between the two wire annulus 21 connected by direction switching section 221, the stiffener rings 23 are by two around in opposite direction two
Wire annulus 21 separates.There can be breach in the stiffener rings 23, so as to the direction switching section 221 from indentation, there connection two
Bar wire annulus 21.The flat vibrating diaphragm 1 of the stiffener rings 23 pairs plays a part of support, reinforcing, improves the overall strong of flat vibrating diaphragm 1
Degree, itself produces and significantly deforms when preventing flat diaphragm oscillations.
Alternatively, as shown in Fig. 2,7, the sound-producing device housing can include fore shell 31 and rear shell 32, and the circle is led
Magnetic sheet 5 is fixedly installed on shell 32 in the rear, rear acoustic aperture 321 can be provided with the rear shell 32, so that sound therefrom spreads out of.
As described in Figure 7, ledge structure 323 can be provided with the rear shell 32, the ledge structure is used for and the circular magnetic conductive board 5
On outer convex rib position be engaged, outer convex rib position can be fixed on the ledge structure 323, so that circular magnetic conductive board
5 are fixedly connected with the rear shell 32.As shown in Fig. 2 could be covered with tuning screen cloth 6, institute on the outer surface of the rear shell 32
State tuning screen cloth 6 and cover the rear acoustic aperture 321.The fore shell 31 is fastened on shell 32 in the rear, is constituted for carrying flat vibrating diaphragm 1
With the receiving space of magnet assemblies.The flat vibrating diaphragm 1 can be close to the fore shell 31, can also be provided with the fore shell for
The pore space structure spoken, the present invention is limited not to this.
Alternatively, the voice coil loudspeaker voice coil conductor layer 2 is electrically connected with external equipment for convenience, forms signal circuit, the sounding
Two weld tabs 7 can be provided with device case, two weld tabs 7 connect with the first signal tie point 11 and secondary signal respectively
Contact 12 is electrically connected.The voice coil loudspeaker voice coil conductor layer 2 can be connected on weld tabs 7 by first, second signal tie point, when flat film hair
Acoustic device is assembled or is fixed on when in external electronic device, and the weld tabs 7 can be electrically connected with external electronic device.As schemed
Shown in 7, there can be draw-in groove 322 on the rear shell 32, the weld tabs 7 can be fixedly installed in the draw-in groove.The present invention is simultaneously
The fixed form of the weld tabs is not limited, and in other embodiments, those skilled in the art can also use weld tabs and rear shell
The forms such as integrated injection molding fix the weld tabs.
Although being described in detail to some specific embodiments of the invention by example, the skill of this area
Art personnel it should be understood that example above is merely to illustrate, rather than in order to limit the scope of the present invention.The skill of this area
Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This hair
Bright scope is defined by the following claims.
Claims (10)
1. a kind of flat film sound-producing device, it is characterised in that including：
Flat vibrating diaphragm (1)；
Voice coil loudspeaker voice coil conductor layer (2), the voice coil loudspeaker voice coil conductor layer (2) is arranged on a side surface of the flat vibrating diaphragm (1), and the voice coil loudspeaker voice coil is led
Line layer (2) is laid by a plurality of wire annulus (21) being arranged concentrically and is formed, and every radius of the wire annulus (21) is different, phase
Connected by radius switching section (22) between two adjacent wire annulus (21), wire annulus (21) is according to decreasing radius described in each bar
Order be sequentially connected in series, in the radius switching section (22) at least include one section of direction switching section (221), in the voice coil loudspeaker voice coil wire
When layer (2) is passed through electric current, the direction switching section (221) inverts the sense of current in two adjacent wire annulus (21)；
Magnet assemblies, the magnet assemblies at least include two annular magnets being arranged concentrically (31), the annular magnet (31)
Quantity suppose it is big by 1 to the quantity of switching section (221), the magnet assemblies be located at the flat vibrating diaphragm (1) side, the annular
Magnet (31) is coaxial with the wire annulus (21), the position where the direction switching section (221) and two adjacent annulars
Interstitial site correspondence between magnet (31), the magnetic pole phase of the gap location of adjacent two annular magnets (31) between
Together；
Sound-producing device housing, the sound-producing device housing is configured for carrying the annular magnet (31) peace vibrating diaphragm (1).
2. flat film sound-producing device according to claim 1, it is characterised in that there are two sections on the voice coil loudspeaker voice coil conductor layer (2)
Direction switching section (221), the magnet assemblies include three annular magnets being arranged concentrically (31).
3. flat film sound-producing device according to claim 1, it is characterised in that two adjacent wire annulus (21) it
Between spacing be more than 0.3mm.
4. flat film sound-producing device according to claim 1, it is characterised in that the flat film sound-producing device is included described in two groups
Magnet assemblies, magnet described in two groups is separately positioned on the both sides of the flat vibrating diaphragm (1).
5. flat film sound-producing device according to claim 1, it is characterised in that the flat film sound-producing device includes circular magnetic conduction
Plate (5), the circular magnetic conductive board (5) is fixed in the sound-producing device housing, and the magnet assemblies are fixedly installed on the circle
On shape magnetic conductive board (5), there is sound transmission aperture (51), the sound transmission aperture (51) and the annular magnet on the circular magnetic conductive board (5)
(31) interstitial site between is corresponding.
6. flat film sound-producing device according to claim 1, it is characterised in that the edge of the flat vibrating diaphragm (1) has first
Signal tie point (11) and secondary signal tie point (12), the maximum wire annulus (21) of radius connect with first signal
Contact (11) is electrically connected, the wire at the minimum wire annulus (21) of radius or voice coil loudspeaker voice coil conductor layer (2) center and described the
Binary signal tie point (12) is electrically connected.
7. flat film sound-producing device according to claim 1, it is characterised in that the flat vibrating diaphragm (1) is rounded, it is described flat to shake
The edge that the edge of film (1) has ring stiffener (13), the flat vibrating diaphragm (1) is fixed on the sound-producing device housing.
8. flat film sound-producing device according to claim 1, it is characterised in that be provided with the voice coil loudspeaker voice coil conductor layer (2) strong
Change ring (23), between two wire annulus (21) that the stiffener rings (23) connect positioned at the direction switching section (221), by two
Wire annulus (21) separates described in bar, has breach on the stiffener rings (23), and the direction switching section (221) lacks positioned at described
At mouthful.
9. flat film sound-producing device according to claim 5, it is characterised in that the sound-producing device housing includes fore shell (31)
With rear shell (32), the circular magnetic conductive board (5) is fixedly installed on shell (32) in the rear, and rear sound is provided with the rear shell (32)
Hole (321), is coated with tuning screen cloth (6) on the outer surface of the rear shell (32), the tuning screen cloth (6) covers the rear acoustic aperture
(321), the fore shell (31) is fastened on shell (32) in the rear, and the flat vibrating diaphragm (1) is near the fore shell (31).
10. flat film sound-producing device according to claim 6, it is characterised in that be provided with two on the sound-producing device housing
Branch weld tabs (7), two weld tabs (7) electrically connect with the first signal tie point (11) and secondary signal tie point (12) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611235965.4A CN106792390B (en) | 2016-12-28 | 2016-12-28 | Flat membrane sound production device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611235965.4A CN106792390B (en) | 2016-12-28 | 2016-12-28 | Flat membrane sound production device |
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| CN106792390A true CN106792390A (en) | 2017-05-31 |
| CN106792390B CN106792390B (en) | 2022-10-14 |
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| CN107360511A (en) * | 2017-07-03 | 2017-11-17 | 深圳市吉瑞德隆电子科技有限公司 | Curved surface vibrating diaphragm loudspeaker and sound-producing device |
| CN107580285A (en) * | 2017-09-18 | 2018-01-12 | 东莞市赞歌声学科技有限公司 | A kind of mobile phone ultrathin loudspeaker |
| CN107645698A (en) * | 2017-10-10 | 2018-01-30 | 歌尔股份有限公司 | Membrane material and vibrating diaphragm for the vibrating diaphragm of sound-producing device |
| CN109511061A (en) * | 2018-12-27 | 2019-03-22 | 歌尔股份有限公司 | Mini-sound device and electronic product |
| WO2019104898A1 (en) * | 2017-11-30 | 2019-06-06 | 深圳市吉瑞德隆电子科技有限公司 | Planar diaphragm horn |
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| CN107360511A (en) * | 2017-07-03 | 2017-11-17 | 深圳市吉瑞德隆电子科技有限公司 | Curved surface vibrating diaphragm loudspeaker and sound-producing device |
| CN107580285A (en) * | 2017-09-18 | 2018-01-12 | 东莞市赞歌声学科技有限公司 | A kind of mobile phone ultrathin loudspeaker |
| CN107645698A (en) * | 2017-10-10 | 2018-01-30 | 歌尔股份有限公司 | Membrane material and vibrating diaphragm for the vibrating diaphragm of sound-producing device |
| WO2019104898A1 (en) * | 2017-11-30 | 2019-06-06 | 深圳市吉瑞德隆电子科技有限公司 | Planar diaphragm horn |
| CN109511061A (en) * | 2018-12-27 | 2019-03-22 | 歌尔股份有限公司 | Mini-sound device and electronic product |
| CN109511061B (en) * | 2018-12-27 | 2024-04-05 | 歌尔股份有限公司 | Miniature sound generating device and electronic product |
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| CN106792390B (en) | 2022-10-14 |
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