CN110177322A - Screen sounding driver and electronic equipment - Google Patents
Screen sounding driver and electronic equipment Download PDFInfo
- Publication number
- CN110177322A CN110177322A CN201910401524.4A CN201910401524A CN110177322A CN 110177322 A CN110177322 A CN 110177322A CN 201910401524 A CN201910401524 A CN 201910401524A CN 110177322 A CN110177322 A CN 110177322A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- screen
- fixedly connected
- magnetic circuit
- circuit system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Abstract
The present invention provides the electronic equipments of a kind of screen sounding driver and application the screen sounding driver, electronic equipment includes screen sounding driver, screen sounding driver includes magnetic circuit system and the vibrational system for driving screen vibration sounding, the magnetic circuit system includes lower plate and the magnetic steel structure that is fixed on the lower plate, the magnetic steel structure, which encloses, to be set to form accommodating space, the vibrational system includes the upper cover plate for being inserted in the voice coil of the accommodating space and being fixedly connected with the voice coil, the screen sounding driver further includes the center fixing piece being fixedly mounted with the magnetic circuit system and the elastic component that one end is fixedly connected with the magnetic circuit system and the other end is fixedly connected with the vibrational system.Of the invention can be assembled into monoblock type driver for magnetic circuit system and vibrational system, to improve assembly precision and overall performance.
Description
[technical field]
The present invention relates to technical field of acoustics more particularly to a kind of screen sounding drivers and electronic equipment.
[background technique]
As what mobile phone shielded popularizes comprehensively, the screen of original 16:9 is gradually substituted by 18:9, and each manufacturer falls over each other to expand hand
The screen accounting of machine, screen accounting has already been reached 90% or more by part mobile phone, but putting for traditional devices is increasingly difficult, especially
It is the position of traditional receiver, is gradually hidden and even cancels；Traditional earpiece is still based on moving-coil type Receiver at present,
The problem of screen earpiece position aperture, is just addressed until the appearance of screen vocal skill, and principle is exactly to pass through an excitation
Device (actuator) drives the screen and structure in front, using screen as vibrating body, generates sound wave by vibration, is then transported on
To human ear.
At present there are mainly two types of the screen sounding drivers on mobile phone, piezoelectric ceramics element excitation device, multilayer piezoelectric ceramic
Piece is attached to sheet metal, referred to as vibrating membrane, to vibrating membrane plus alternately the voltage of variation, can with the variation of voltage and ceaselessly
Bending driving support structures vibration sounding up and down；And micro-vibration element excitation device, it is produced using electric field with magnetic field reciprocation
The raw field of force.
The magnetic circuit system and vibrational system for the micro-vibration element excitation device that current industry uses is split type structures, magnetic circuit system
System is fixed with the center of electronic equipment respectively with vibrational system, and magnetic circuit system split type in this way and vibrational system are in assembling process
In, precision is difficult to ensure, installation performance is difficult to ensure that device globality is poor.
Therefore, it is necessary to a kind of magnetic circuit system be provided and vibrational system is the driver of monoblock type, to guarantee the dress of device
With precision and installation performance.
[summary of the invention]
The purpose of the present invention is to provide a kind of screen sounding driver and electronic equipments, can be by magnetic circuit system and vibration
Dynamic system assembles are monoblock type driver, to improve assembly precision and overall performance.
Technical scheme is as follows: a kind of screen sounding driver, including magnetic circuit system and driving screen vibration
The vibrational system of sounding, the magnetic circuit system include lower plate and the magnetic steel structure that is fixed on the lower plate, the magnetic
Steel construction, which encloses, to be set to form accommodating space, the vibrational system include be inserted in the accommodating space voice coil and with the voice coil
The upper cover plate being fixedly connected, the screen sounding driver further include with the magnetic circuit system be fixedly mounted center fixing piece and
The elastic component that one end is fixedly connected with the magnetic circuit system and the other end is fixedly connected with the vibrational system, the upper cover plate with
Between the magnetic steel structure have first vibration gap, the voice coil far from the upper cover plate one end and the lower plate it
Between have second vibration gap.
Further, the elastic component includes the upper interconnecting piece being fixedly connected with the vibrational system and the magnetic circuit system
The system lower interconnecting piece being fixedly connected and the spring body being placed between the upper interconnecting piece and the lower interconnecting piece.
Further, the spring body is U-shaped reed or helical spring.
Further, the magnetic circuit system further includes the fixation being clamped between the magnetic steel structure and the lower plate
Block.
Further, the magnetic steel structure includes four blocks of magnet steel for being disposed around the voice coil outer surface, adjacent magnet steel it
Between be equipped with the elastic component.
Further, the magnetic circuit system further includes being fixed on surface of the magnetic steel structure towards the accommodating space
Pole piece, the surface of every block of magnet steel, which is sticked, the pole piece.
Further, the vibrational system further includes the iron core for being inserted in the voice coil hollow position.
Further, the vibrational system further includes the magnetic conductive board for being separately fixed at the voice coil upper and lower ends, a magnetic conduction
Plate is fixedly connected with the upper cover plate, and another magnetic conductive board is opposite with the lower plate interval.
Further, the center fixing piece includes that the bottom plate being fixedly connected with the lower plate and the magnetic circuit system is consolidated
The center fixed part determining portion and extending to center horizontal direction, the center fixed part are equipped with the through-hole for assembly.
A kind of electronic equipment of the present invention is fixedly connected including display screen, the center of fixed display screen and with the center
Lower case, which further includes at least one the above-mentioned screen for being set in the center and being in contact with the display screen
Curtain sounding driver.
The beneficial effects of the present invention are: magnetic circuit system of the invention is fixed by center fixing piece and electronic equipment center
Connection, vibrational system are fixedly connected with electronic equipment display screen, between the first vibration between upper cover plate and the magnetic steel structure
Gap, has the second vibration gap between one end and the lower plate of the separate upper cover plate of the voice coil, vibrational system exists
Under the action of magnetic circuit system, gap internal vibration, and driving display screen vibration sounding are vibrated in the first vibration gap and second.Bullet
Property part be arranged between vibrational system and magnetic circuit system, realize it is between the two it is flexible be fixedly connected, both can be convenient assembly
Process, while the relative positional relationship of vibrational system and magnetic circuit system being defined, reach the requirement of complete machine precision.
[Detailed description of the invention]
Fig. 1 is the dimensional decomposition structure diagram of electronic equipment in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of screen sounding driver in the embodiment of the present invention；
Fig. 3 is the decomposition texture schematic diagram of screen sounder in the embodiment of the present invention；
Fig. 4 is the vibrational system decomposition texture schematic diagram of screen sounder in the embodiment of the present invention；
Fig. 5 is the motor structure schematic diagram of screen sounder in the embodiment of the present invention；
Fig. 6 is the cross-sectional view in screen sounding driver direction A-A along Fig. 2 in the embodiment of the present invention；
Fig. 7 is the structural schematic diagram of elastic component in the embodiment of the present invention；
Fig. 8 is the structural schematic diagram of center fixing piece in the embodiment of the present invention.
[specific embodiment]
The invention will be further described with embodiment with reference to the accompanying drawing.
The invention discloses a kind of electronic equipment referring to FIG. 1-2, including in display screen 200, fixed display screen 200
Frame 300, the lower case 400 being fixedly connected with center 300 and be set in center 300 and be in contact with display screen 200 to
A few screen sounding driver 100.Groove equipped with many places accommodating screen sounding driver 100 in center 300, every group of groove
One stack screen sounding driver 100 of middle accommodating.
Further referring to Fig. 3-5, screen sounding driver 100 of the invention, including magnetic circuit system 110 and driving screen
The vibrational system 120 of curtain vibration sounding, magnetic circuit system 110 include lower plate 111 and the magnet steel knot being fixed on lower plate 111
Structure 112, magnetic steel structure 112, which encloses, to be set to form accommodating space 115, and vibrational system 120 includes the voice coil for being inserted in accommodating space 115
121 and the upper cover plate 122 that is fixedly connected with voice coil 121, the screen sounding driver 100 further include solid with magnetic circuit system 110
The center fixing piece 140 of Dingan County's dress and one end are fixedly connected with magnetic circuit system 110 and the other end and vibrational system 120 are fixed and connected
The elastic component 130 connect has the first vibration gap 125, the separate upper cover of voice coil 121 between upper cover plate 122 and magnetic steel structure 112
There is the second vibration gap 126 between one end and lower plate 111 of plate 122.
Compared to the prior art, magnetic circuit system 110 of the invention passes through center fixing piece 140 and electronic equipment center 300
It is fixedly connected, vibrational system 120 is fixedly connected with electronic equipment display screen 200, work of the vibrational system 120 in magnetic circuit system 110
Under, 126 internal vibration of gap, and 200 vibration sounding of driving display screen, elasticity are vibrated in the first vibration gap 125 and second
Part 130 is arranged between vibrational system 120 and magnetic circuit system 110, realize it is between the two it is flexible be fixedly connected, both can be square
Just assembling process, while vibrational system 120 and the relative positional relationship of magnetic circuit system 110 being defined, reach complete machine
The requirement of precision.
Further referring to Fig. 6, elastic component 130 includes the upper interconnecting piece 131 being fixedly connected with upper cover plate 122, with bottom
Lower interconnecting piece 132 that at least one in plate 111, magnetic steel structure 112, fixed block 113 or center fixing piece 140 is fixedly connected and
The spring body 133 being placed between interconnecting piece 131 and lower interconnecting piece 132.Pass through glue between upper interconnecting piece 131 and upper cover plate 122
Together, lower interconnecting piece 132 passes through together with glue seamless binding water seamless binding between lower plate 111, upper interconnecting piece 131
Primarily serve the effect for connecting upper cover plate 122 Yu lower plate 111 with lower interconnecting piece 132, spring body 133 can be arch shrapnel or
It is spiral spring, as long as can guarantee that flexible fastening connects in a certain range, upper interconnecting piece 131, lower interconnecting piece
132 are welded and fixed with spring body 133, and the apparent surface of the fixation surface of spring body 133 and upper interconnecting piece 131 is equipped with the first pad
Piece 134, the first gasket 134 are used to reinforce the connection of spring body 133 Yu upper interconnecting piece 131, spring body 133 and lower interconnecting piece 132
Fixation surface apparent surface on also be provided with the second gasket 135, the second gasket 135 is for reinforcing spring body 133 and lower connection
The connection in portion 132.
In the present embodiment, spring body 133 is U-shaped reed or helical spring.Spring body 133 is mainly by magnetic circuit system and vibration
Dynamic system resilience connection, concrete shape can be adjusted according to different needs.Certainly, the invention is not limited to above-mentioned
The shape limitation of two kinds of spring bodies 133, is also possible to other shapes, as long as the spring structure that can be realized elastic connection belongs to
The simple deformation and transformation of this programme, should fall into protection scope of the present invention.
The quantity of spring body 133 is determined according to the concrete shape of voice coil 121 and magnetic steel structure 112, as shown in Figure 1, originally
Elastic component 130 in scheme includes four groups, and four groups of elastomers realize that stablizing between upper cover plate 122 and lower plate 111 is fixed.When
So, the invention is not limited to the setting of above-mentioned four groups of elastic components 130, elastic component 130 can also directly be deformed into cyclic spring
Part is integrally looped around outside magnetic steel structure 112, and two groups of elastic components 130 also can be used and be symmetrically fixed on outside magnetic steel structure 112.As long as
It is that by magnetic circuit system 110 and the flexible of vibrational system 120 is stably connected with mode, belong to the simple deformation of this programme
With transformation, protection scope of the present invention should be fallen into.
In the present embodiment, magnetic circuit system 110 further includes the fixation being clamped between magnetic steel structure 112 and lower plate 111
Block 113.Fixed block 113 avoids magnetic steel structure 112 from existing for plastic material for magnetic steel structure 112 to be fixed on lower plate 111
The possibility for shifting or loosening in electronic equipment use process.
In the present embodiment, magnetic circuit system 110 further includes being fixed on surface of the magnetic steel structure 112 towards accommodating space 115
Pole piece 114.Pole piece enhances the magnetic conduction effect of magnetic steel structure 112.
In the present embodiment, magnetic steel structure 112 includes four blocks of magnet steel for being disposed around 121 outer surface of voice coil, adjacent magnet steel
Between be equipped with elastic component 130.
The corresponding one group of pole piece 114 of every block of magnet steel.Junction between every block of magnet steel and lower plate 111 is equipped with one piece of fixation
Block, every block of magnet steel are equipped with one piece of pole piece 114 towards the surface of accommodating space 115, generate magnetic field stable and uniform.
In the present embodiment, vibrational system 120 further includes the iron core 123 for being inserted in 121 hollow position of voice coil.Iron core 123
The magnetic induction intensity of voice coil 121 can be enhanced to a certain extent, improve the vibrating effect of vibrational system 120.
In the present embodiment, vibrational system 120 further includes the magnetic conductive board 124 for being separately fixed at 121 upper and lower ends of voice coil, is led
Magnetic sheet 124 can also be further fixedly connected with iron core 123, wherein a magnetic conductive board 124 is fixedly connected with upper cover plate 122, it is another to lead
Magnetic sheet 124 and lower plate 111 are spaced relatively.
Magnetic conductive board 124 is mainly used for combining fixed voice coil 121 with iron core 123, and plays the role of certain magnetic conduction, magnetic conductive board
The wire lead slot being electrically connected convenient for 121 input line of voice coil and output line with FPC wiring board 1222 is additionally provided on 124.
In the present embodiment, upper cover plate 122 includes being fixedly connected with magnetic conductive board 124 to transmit the support plate of effect of vibration power
1221 and the FPC wiring board 1222 that is fixed in support plate 1221 and is electrically connected with voice coil 121.FPC wiring board 1222 and sound
121 electrical connection of circle, and current value of different sizes is inputted to voice coil 121, display is driven to realize voice coil 121 under unlike signal
Screen 200 issues the effect of alternative sounds.Support plate includes plastic cement supporting plate 1221 and steel disc support plate 1223, double layer support plate
Not only it can satisfy the rigidity of support requirement of support plate, but also can play a protective role to a certain extent.
Further referring to Fig. 7, center fixing piece 140 includes being fixedly connected with lower plate 111 and magnetic circuit system 110
Bottom plate fixed part 141 and the center fixed part 142 extended to 300 horizontal direction of center, center fixed part 142 are equipped with assembly
Through-hole.Center fixing piece 140 includes two groups, lower plate 111 is fixed, shape is simultaneously without limitations, as long as can be real
The structure that existing center 300 is fixedly connected with lower plate 111 belongs to the simple deformation and transformation of this programme, should fall into the present invention
Protection scope.
The above are merely embodiments of the present invention, it should be noted here that for those of ordinary skill in the art,
Without departing from the concept of the premise of the invention, improvement can also be made, but these are all belonged to the scope of protection of the present invention.
Claims (10)
1. a kind of screen sounding driver, the vibrational system including magnetic circuit system and driving screen vibration sounding, the magnetic circuit
System includes lower plate and the magnetic steel structure that is fixed on the lower plate, and the magnetic steel structure, which encloses, to be set to form accommodating space,
The vibrational system includes the upper cover plate for being inserted in the voice coil of the accommodating space and being fixedly connected with the voice coil, feature
It is, which further includes the center fixing piece being fixedly mounted with the magnetic circuit system and one end and the magnetic
The elastic component that road system is fixedly connected and the other end is fixedly connected with the vibrational system, the upper cover plate and the magnetic steel structure
Between have first vibration gap, the voice coil far from the upper cover plate one end and the lower plate between have second vibration
Dynamic gap.
2. screen sounding driver according to claim 1, which is characterized in that the elastic component includes and the vibration system
It unites and the upper interconnecting piece being fixedly connected, the lower interconnecting piece that is fixedly connected with the magnetic circuit system and is placed in the upper interconnecting piece and institute
State the spring body between lower interconnecting piece.
3. screen sounding driver according to claim 2, which is characterized in that the spring body is U-shaped reed or spiral
Spring.
4. screen sounding driver according to claim 1, which is characterized in that the magnetic circuit system further includes being clamped in institute
State the fixed block between magnetic steel structure and the lower plate.
5. screen sounding driver according to claim 1, which is characterized in that the magnetic steel structure is described including being disposed around
Four blocks of magnet steel of voice coil outer surface are equipped with the elastic component between adjacent magnet steel.
6. screen sounding driver according to claim 5, which is characterized in that the magnetic circuit system further includes being fixed on institute
The pole piece on surface of the magnetic steel structure towards the accommodating space is stated, the surface of every block of magnet steel, which is sticked, the pole
Core.
7. screen sounding driver according to claim 1, which is characterized in that the vibrational system further includes being inserted in institute
State the iron core of voice coil hollow position.
8. screen sounding driver according to claim 7, which is characterized in that the vibrational system further includes fixing respectively
In the magnetic conductive board of the voice coil upper and lower ends, a magnetic conductive board is fixedly connected with the upper cover plate, another magnetic conductive board and the bottom
Plate interval is opposite.
9. screen sounding driver according to claim 1, which is characterized in that the center fixing piece include with it is described under
The bottom plate fixed part that bottom plate and the magnetic circuit system are fixedly connected and the center fixed part extended to center horizontal direction, it is described
Center fixed part is equipped with the through-hole for assembly.
10. a kind of electronic equipment, including display screen, the center of fixed display screen and the lower casing that is fixedly connected with the center
Body, which is characterized in that the electronic equipment further includes being set at least one being in contact in the center and with the display screen
Such as the described in any item screen sounding drivers of claim 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910401524.4A CN110177322B (en) | 2019-05-15 | 2019-05-15 | Screen sound production exciter and electronic equipment |
| PCT/CN2019/087556 WO2020228050A1 (en) | 2019-05-15 | 2019-05-20 | Sound actuator for screen, and electronic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910401524.4A CN110177322B (en) | 2019-05-15 | 2019-05-15 | Screen sound production exciter and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110177322A true CN110177322A (en) | 2019-08-27 |
| CN110177322B CN110177322B (en) | 2021-01-15 |
Family
ID=67691031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910401524.4A Active CN110177322B (en) | 2019-05-15 | 2019-05-15 | Screen sound production exciter and electronic equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110177322B (en) |
| WO (1) | WO2020228050A1 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110536219A (en) * | 2019-09-16 | 2019-12-03 | Oppo广东移动通信有限公司 | Driver, screen assembly and electronic equipment |
| CN110933567A (en) * | 2019-12-02 | 2020-03-27 | 歌尔股份有限公司 | Vibration sound production device |
| CN110933565A (en) * | 2019-11-27 | 2020-03-27 | 浙江省东阳市东磁诚基电子有限公司 | Novel screen sounding exciter and implementation method thereof |
| CN111031451A (en) * | 2019-12-07 | 2020-04-17 | 歌尔股份有限公司 | Exciter and electronic product |
| CN111182105A (en) * | 2019-12-31 | 2020-05-19 | 汉得利（常州）电子股份有限公司 | High-sensitivity high-power broadband magnetoelectric exciter suitable for comprehensive screen sound production |
| CN111479199A (en) * | 2020-04-16 | 2020-07-31 | 浙江省东阳市东磁诚基电子有限公司 | Novel screen sounding structure and implementation method thereof |
| CN112449291A (en) * | 2019-08-28 | 2021-03-05 | 华为技术有限公司 | Sound unit and mobile terminal |
| WO2021103075A1 (en) * | 2019-11-25 | 2021-06-03 | 瑞声声学科技(深圳)有限公司 | Screen sounder and electronic device using same |
| CN113163629A (en) * | 2020-01-22 | 2021-07-23 | Oppo广东移动通信有限公司 | Electronic device and assembling method thereof |
| WO2023092847A1 (en) * | 2021-11-26 | 2023-06-01 | 宁波凯普电子有限公司 | Vibration exciter having elastic support |
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| CN116581924A (en) * | 2021-12-06 | 2023-08-11 | 荣耀终端有限公司 | Vibration motor and terminal device |
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