CN108882129A - Circuit board, loudspeaker, electronic equipment and polarization compensation method - Google Patents
Circuit board, loudspeaker, electronic equipment and polarization compensation method Download PDFInfo
- Publication number
- CN108882129A CN108882129A CN201811107503.3A CN201811107503A CN108882129A CN 108882129 A CN108882129 A CN 108882129A CN 201811107503 A CN201811107503 A CN 201811107503A CN 108882129 A CN108882129 A CN 108882129A
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- circuit board
- voice coil
- polarization
- loudspeaker
- vibration
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Classifications
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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
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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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- 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
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
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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
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The present invention disclose it is a kind of for the circuit board of loudspeaker, loudspeaker, electronic equipment and polarization compensation method, the loudspeaker include with the relatively-stationary voice coil of the circuit board, circuit board includes circuit board body and the cabling area in circuit board body；The cabling area includes at least two polarization compensation corresponding with voice coil areas, and each polarization compensation area includes a vibration detection line and a vibration compensation line；The every vibration detection line exports detection electric current when following voice coil vibrations to the ppu with circuit board electrical connection, so that ppu obtains polarization information according to the detection electric current of all vibration detection lines, and according to the polarization information into every vibration compensation line input offset current, the present invention can prevent the polarization phenomena of vibrational system, improve the acoustical behavior of loudspeaker.
Description
Technical field
The present invention relates to electroacoustic switch technology fields.More particularly, to a kind of circuit board, loudspeaker, electronic equipment and
Polarization compensation method.
Background technique
Loudspeaker is a kind of basic phonation unit for converting electrical signals to acoustical signal.With mobile communication equipment industry
Development, Microspeaker industry is rapidly developed, and the requirement for Microspeaker performance is higher and higher.
Vibrational system and magnetic circuit system are equipped in loudspeaker, wherein vibrational system includes voice coil and vibrating diaphragm, is passed through on voice coil
After electric current, voice coil forced vibration under the action of the magnetic field of magnetic circuit system, voice coil vibrations drive diaphragm oscillations sounding.But vibrating diaphragm
It is polarized in vibration processes vulnerable to the influence of air-flow in Microspeaker.Especially in the frivolous of the electronic equipments such as mobile phone
Under change trend, the loudspeaker that side is spoken is had been more and more widely used, and the speak outlet sound mouth of loudspeaker of side is located at loudspeaker
Side, in diaphragm oscillations sounding, airflow asymmetry in front of vibrating diaphragm causes loudspeaker to there is polarization, and then makes loudspeaker
Sound quality reduces, and customer experience is poor.
Summary of the invention
It is an object of the present invention to provide a kind of circuit boards for loudspeaker, to prevent the polarization of vibrational system existing
As improving the acoustical behavior of loudspeaker.It is another object of the present invention to provide a kind of loudspeaker, another mesh of the invention
Be a kind of electronic equipment is provided, another purpose of the invention is that providing a kind of loudspeaker polarization compensation method.
In order to achieve the above objectives, the present invention adopts the following technical solutions：
One aspect of the present invention discloses a kind of circuit board for loudspeaker, and the loudspeaker includes and the circuit board phase
To fixed voice coil, circuit board includes circuit board body and the cabling area in circuit board body；
The cabling area includes at least two polarization compensation corresponding with voice coil areas, and each polarization compensation area includes one
Bar vibration detection line and a vibration compensation line；
The every vibration detection line exports detection electric current when following voice coil vibrations to the outside with circuit board electrical connection
Processor, so that ppu obtains polarization information according to the detection electric current of all vibration detection lines, and according to the polarization
Information input offset current into every vibration compensation line.
Preferably, the voice coil include two opposite first while and when two opposite second；
The cabling area include correspond respectively to two described first while or two polarizations being arranged of two described second whiles
Compensating basin；Alternatively,
The cabling area include correspond respectively to one described first while and two polarizations being arranged of one described second while
Compensating basin；Alternatively,
The cabling area include correspond respectively to two described first while and four polarizations being arranged of two described second whiles
Compensating basin.
Preferably, the loudspeaker includes side outlet sound mouth, and the voice coil includes close to the first side of the side outlet sound mouth, institute
State cabling area include be respectively arranged on described first while and it is described first while relative edge Liang Ge polarization compensation area.
Preferably, the circuit board includes the second face close to the first face of voice coil and away from voice coil；
The polarization compensation area is set on the first face or the second face of the circuit board.
Preferably, the circuit board includes the second face close to the first face of voice coil and away from voice coil；
At least two polarization compensation areas include that the first compensating basin set on the first face and second set on the second face is mended
Repay area.
Preferably, it is electrically connected equipped with multiple with the ppu in outboard end of the circuit board far from loudspeaker
Electric connection terminal；Wherein,
The vibration detection line and the vibration compensation line are connected by the cabling in the cabling area and the electric connection terminal
It connects.
Preferably, the circuit board sets that there are two the welding disks for being electrically connected with two voice coil leads of voice coil.
Another aspect of the present invention discloses a kind of loudspeaker, including circuit board as described above.
Further aspect of the present invention discloses a kind of electronic equipment, including loudspeaker as described above and with the loudspeaker electricity
The processor of connection；
The processor, which is used to receive the detection electric current according to all vibration detection lines and handles, obtains polarization information, and root
According to the polarization information into every vibration compensation line input offset current.
Further aspect of the present invention discloses a kind of loudspeaker polarization compensation method, including：
The detection electric current of the circuit board fixed with voice coil output when receiving speaker voice coil vibrations；
Polarization information is obtained according to the detection electric current of all vibration detection lines；
According to the polarization information into every vibration compensation line input offset current,
Wherein, circuit board includes circuit board body and the cabling area in circuit board body, and the cabling area includes extremely
Few two polarization compensation corresponding with voice coil areas, each polarization compensation area include that a vibration detection line and a vibration are mended
Repay line.
Beneficial effects of the present invention are as follows：
At least two polarization compensation corresponding with voice coil areas, each polarization compensation area is arranged in the present invention on circuit boards
Including a vibration detection line and a vibration compensation line.In voice coil vibrations, vibration detection line can follow voice coil vibrations, that is, shake
Dynamic detection line moves in the magnetic field that magnetic circuit system is formed, and detection electric current can be generated on vibration detection line.Each polarization compensation area
It is corresponding with the side of voice coil, by analyzing the detection electric current generated on the not ipsilateral vibration detection line of voice coil, can be obtained
The case where voice coil vibrations, and then speaker vibration system is obtained with the presence or absence of polarization.It, can be to vibration compensation line when there is polarization
Middle input compensation electric current corresponding with situation is polarized, circuit board is after input offset current, under the action of magnetic circuit system magnetic field
Vibration drives voice coil and diaphragm oscillations to improve the sound quality of loudspeaker to offset the polarization of vibrational system.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
Fig. 1 shows the face schematic diagram in a specific embodiment of the invention for the circuit board of loudspeaker.
Fig. 2 shows the another side schematic diagrames in a specific embodiment of the invention for the circuit board of loudspeaker.
Fig. 3 shows the decomposition diagram of loudspeaker in a specific embodiment of the invention.
Fig. 4 shows the decomposition diagram of loudspeaker mould group in a specific embodiment of the invention.
Fig. 5 shows the flow chart of loudspeaker polarization compensation method in a specific embodiment of the invention.
Appended drawing reference：
11, mould group lower casing, 12, mould group upper casing, 2, loudspeaker, 31, leak, 32, screen cloth, 21, shell, 221, vibrating diaphragm sheet
Body portion, 222, reinforcement central part, 23, voice coil, 24, circuit board, 25, conductive magnetic yoke, 261, centring magnet, 262, side magnet, 27, lead
Magnetic sheet, 241, vibration detection line, 242, vibration compensation line, 243, via hole, 244, pad, 245, electric connection terminal, 246, cabling.
Specific embodiment
In order to illustrate more clearly of the present invention, the present invention is done further below with reference to preferred embodiments and drawings
It is bright.Similar component is indicated in attached drawing with identical appended drawing reference.It will be appreciated by those skilled in the art that institute is specific below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
In the prior art, loudspeaker includes shell and vibrational system and magnetic circuit system in shell.Wherein, it vibrates
System includes vibrating diaphragm and the voice coil that is fixed below vibrating diaphragm.Magnetic circuit system is formed with magnetic gap, and the one end of voice coil far from vibrating diaphragm is outstanding
It sets in magnetic gap.When being passed through electric current, voice coil forced vibration under the action of magnetic gap magnetic field in voice coil, voice coil vibrations drive vibration
Film vibration sounding.When the voice coil of vibrational system and vibrating diaphragm are influenced by air-flow in loudspeaker and polarization occur, especially when raising
Sound device be side speak loudspeaker when, polarization phenomena by nearside outlet sound mouth and far from side outlet sound mouth two sides between can it is particularly evident,
It will affect the sound quality and acoustical behavior of loudspeaker, reduce user experience.
In order to solve the polarization problem of loudspeaker in the prior art, according to an aspect of the present invention, such as Fig. 1-Fig. 4 institute
Show, discloses a kind of circuit board 24 for loudspeaker.
In the present embodiment, circuit board 24 includes circuit board body and the cabling area in circuit board body.The cabling
Area includes at least two polarization compensation areas corresponding with the voice coil 23, and each polarization compensation area includes a vibration detection line
241 and a vibration compensation line 242.
When loudspeaker 2 works normally, the every vibration detection line 241 follows voice coil 23 to vibrate, vibration detection line 241
The upper detection electric current that formed simultaneously exports detection electric current to the ppu that is electrically connected with circuit board 24 so that ppu according to
The detection electric current of all vibration detection lines 241 obtains polarization information, and according to the polarization information to every vibration compensation line 242
Middle input offset current.
The present invention detects the polarization feelings of 2 vibrational system of loudspeaker by the way that vibration detection line 241 is arranged on circuit board 24
Condition.When the vibration of voice coil 23 drives diaphragm oscillations sounding, vibration detection line 241 follows voice coil 23 and diaphragm oscillations, i.e. vibration detection
Line 241 moves in the magnetic field that magnetic circuit system is formed, and will form detection electric current on vibration detection line 241.When voice coil 23 is not ipsilateral
Vibration it is different when, the detection electric current formed on vibration detection line 241 is not also identical.Make each polarization compensation area and voice coil 23
Side it is corresponding, by analyzing the detection electric current generated on the not ipsilateral vibration detection line 241 of voice coil 23, sound can be obtained
23 not ipsilateral Vibration Conditions are enclosed, and then obtain 2 vibrational system of loudspeaker with the presence or absence of polarization.It, can be to vibration when there is polarization
Input compensation electric current corresponding with polarization situation in dynamic compensating line 242.Circuit board 24 is after input offset current, in magnetic circuit system
Vibration drives voice coil 23 and diaphragm oscillations under the action of magnetic field, to offset the polarization of vibrational system, keeps vibration balancing, improves
The sound quality of loudspeaker 2.
In loudspeaker 2, voice coil 23 is generally rectangular, and voice coil 23 includes two the first opposite sides and two opposite the
Two sides.
In being preferably carried out mode, the cabling area may include corresponding respectively to described in two first sides or two
The Liang Ge polarization compensation area of second side setting.Liang Ge polarization compensation area can be respectively arranged on two the first opposite sides, or
Person can also be respectively arranged on two the second opposite sides.Certainly, in other embodiments, Liang Ge polarization compensation area can also divide
Be not set to one first while and at one second, on.
When loudspeaker 2 speaks loudspeaker 2 for side, the loudspeaker 2 includes side outlet sound mouth, can be in voice coil 23 close to described
A polarization compensation area is arranged in the side of side outlet sound mouth, and a polarization compensation is arranged far from the other side of side outlet sound mouth in voice coil 23
Area.The serious region of situation is polarized so as to opposite side loudspeaker 2 of speaking, i.e., is polarized close to and far from the region of side outlet sound mouth
The detection of situation simultaneously compensates.
In other optionally embodiment, the cabling area, which may also include, corresponds respectively to described two first sides and two
Four polarization compensation areas of a second side setting.Four polarization compensation areas are arranged on circuit board 24 can be to voice coil 23 and vibrating diaphragm
Whole polarization feelings situation is detected and is compensated, and the acoustical behavior of loudspeaker 2 is further increased.
The circuit board 24 may include the second face close to the first face of voice coil 23 and away from voice coil 23.
In optionally embodiment, the polarization compensation area can be set to the first face or the second face of the circuit board 24
On.For example, in the present embodiment, Liang Ge polarization compensation area is set on a side surface of circuit board 24.Certainly, each polarization compensation
Area may be disposed at the first face, also can be set in the second face, can realize the first face or second by the cabling 246 on circuit board 24
The polarization compensation area in face and being electrically connected for ppu.
In other optionally embodiment, at least two polarization compensation areas include the first compensation set on the first face
Area and the second compensating basin set on the second face.Polarization compensation area may be disposed at a side surface of circuit board 24, also can be set in
The both side surface of circuit board 24.When polarization compensation area is set to the both side surface of circuit board 24, polarization compensation area includes setting
In first compensating basin in the first face of the circuit board 24 on 23 one side of voice coil and second compensating basin in the second face, first compensating basin
Need to be arranged in parallel respectively with the vibration detection line and vibration compensation line of the second compensating basin, i.e. the vibration detection line of the first compensating basin with
The vibration detection line of second compensating basin is in parallel, and the vibration compensation line of the vibration compensation line of the first compensating basin and the second compensating basin is simultaneously
Connection is arranged compensating basin by the both side surface in circuit board 24 and forms polarization compensation area.
It should be noted that needing to form multiple mistakes on circuit board 24 due to the limitation in 24 cabling of circuit board, 246 space
Hole 243, so that cabling area can make vibration detection line 241, vibration by via hole 243 in two side upward wirings 246 of circuit board 24
Dynamic compensating line 242, the voice coil leads for being electrically connected to pad are connected to electric connection terminal.In circuit board 24 far from the outer of loudspeaker 2
Side end is equipped with multiple electric connection terminals 245, for being electrically connected with processor.
In addition, the vibration detection line 241 and vibration compensation line 242 in the present embodiment are located at the surface of voice coil 23, ascend the throne
In the surface of magnetic gap, correspond to the stronger region of magnetic field strength.Vibration detection line 241 and vibration compensation line 242 pass through
The cabling 246 in line area is connect with electric connection terminal 245.The weaker region of magnetic field strength outside magnetic gap is to vibration detection line 241
The influence of the detection electric current of upper formation is smaller, it is ensured that the accuracy of 2 vibrational system Polarization Detection of loudspeaker.
The circuit board 24 sets that there are two the pads 244 for being electrically connected with two 23 leads of voice coil of voice coil 23
Portion.Preferably, two pad 244 hollow portions positioned at voice coil 23, two leads of voice coil 23 can be respectively welded at two welderings
On 244, disk, then voice coil 23 can be electrically connected by circuit board 24 with external circuit.
As shown in figure 3, according to another aspect of the present invention, the present embodiment also discloses an a kind of specific reality of loudspeaker
Apply example.In the present embodiment, using circuit board 24 as described in the embodiment in loudspeaker 2.
In the present embodiment, loudspeaker 2 includes shell 21 and vibrational system and magnetic circuit system in shell 21.
Wherein, vibrational system may include vibrating diaphragm and the voice coil 23 that is fixed below vibrating diaphragm.Circuit board 24 be set to vibrating diaphragm and
Between voice coil 23, the voice coil 23 is fixed on circuit board 24.
The vibrating diaphragm may include the vibrating diaphragm central part in vibrating diaphragm center and the vibrating diaphragm that connect with vibrating diaphragm central part edge
Vibrating diaphragm body part 221 is collectively formed in edge part.In order to increase the vibration characteristics of vibrating diaphragm, usual vibrating diaphragm central part includes in ontology
Center portion and the reinforcement central part 222 for being incorporated in body central portion surface.In order to mitigate vibrating diaphragm weight, vibrating diaphragm is further increased
Vibration performance, can be by the central hollow out in body central portion.Wherein, the hollow out edge in body central portion need to be located at fixation in connection
222 edge of reinforcement central part inside, guarantee that fretwork area is less than the area of reinforcement central part 222 being bonded with it, to protect
Demonstrate,prove the air-tightness of vibrating diaphragm.Preferably, vibrating diaphragm it is lower can fixing circuit board 24, voice coil 23 can be fixed on circuit board 24, thus
It is relatively fixed with circuit board 24.
Magnetic circuit system is formed with magnetic gap, and voice coil 23 is suspended in magnetic gap far from one end of vibrating diaphragm.The magnetic circuit system
It may include conductive magnetic yoke 25, be fixed on the magnet at 25 center of conductive magnetic yoke and the magnetic conductive board 27 positioned at magnet upper surface.The present embodiment
In, in order to increase the magnetic field strength of magnetic circuit system formation, magnetic circuit system is used in the center of conductive magnetic yoke 25 setting magnet 261 and is led
Magnetic sheet 27 forms center magnetic path, multiple side magnet 262 is arranged at the edge of conductive magnetic yoke 25, and set in the upper surface of side magnet 262
Side magnetic conductive board is set, side magnetic circuit is formed, to form the magnetic gap for accommodating voice coil 23 between center magnetic path and side magnetic circuit.Conductive magnetic yoke 25
It is generally rectangular, when magnet 262 may be provided at the four of conductive magnetic yoke 25, two opposite long sides of conductive magnetic yoke 25 can also be positioned only at
Or short side, 25 edge of conductive magnetic yoke of not set side magnet 262 extend vertically to form side wall relative to conductive magnetic yoke 25, side magnetic circuit and side
Wall forms magnetic gap with center magnetic path jointly.In other embodiments, the conductive magnetic yoke 25 may also include flat bottom wall
With the side wall extended along bottom wall edge towards vibrational system.It is formed and is accommodated between the side wall and magnet and magnetic conductive board 27 of conductive magnetic yoke 25
The magnetic gap of 23 lower end of voice coil.
As shown in figure 4, loudspeaker 2 can be set in acoustical generator mould group, which can in optionally embodiment
Loudspeaker 2 as described in the embodiment including module shell and in the cavity that module shell is formed.Wherein, module shell
It may include the mould group upper casing 12 and mould group lower casing 11 being correspondingly arranged.The cavity that module shell is formed is divided into the preceding operatic tunes by loudspeaker 2
It is settable for adjusting the sound-absorbing material of sound quality in the rear operatic tunes with the rear operatic tunes.Further, outside the mould group of the rear operatic tunes
Can also form the leak 31 pressed on shell, the position that module shell outer surface corresponds to leak 31 be further provided with screen cloth 32 with
Increase the damping of leak 31.
In accordance with a further aspect of the present invention, the present embodiment also discloses a kind of electronic equipment.In the present embodiment, electronic equipment
Loudspeaker 2 including such as the present embodiment and the processor being electrically connected with the loudspeaker 2.
Wherein, the processor, which can receive the detection electric current according to all vibration detection lines 241 and handle, obtains polarization letter
Breath, and according to the polarization information into every vibration compensation line 242 input offset current.
Also one side according to the present invention, as shown in figure 5, the present embodiment also discloses a kind of 2 polarization compensation side of loudspeaker
Method, this method include：
S100：The detection electric current exported when 2 voice coil 23 of receiving speaker vibrates with the fixed circuit board 24 of the voice coil 23.
Wherein, circuit board 24 includes circuit board body and the cabling area in circuit board body, and the cabling area includes at least two
Polarization compensation area corresponding with the voice coil 23, each polarization compensation area include that a vibration detection line 241 and a vibration are mended
Repay line 242.
S200：Polarization information is obtained according to the detection electric current of all vibration detection lines 241；
S300：According to the polarization information into every vibration compensation line 242 input offset current.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention may be used also on the basis of the above description for those of ordinary skill in the art
To make other variations or changes in different ways, all embodiments can not be exhaustive here, it is all to belong to this hair
The obvious changes or variations that bright technical solution is extended out are still in the scope of protection of the present invention.
Claims (10)
1. a kind of circuit board for loudspeaker, the loudspeaker include and the relatively-stationary voice coil of the circuit board, feature
It is, circuit board includes circuit board body and the cabling area in circuit board body；
The cabling area includes at least two polarization compensation corresponding with voice coil areas, and each polarization compensation area includes a vibration
Dynamic detection line and a vibration compensation line；
The every vibration detection line exports detection electric current when following voice coil vibrations to the external treatment with circuit board electrical connection
Device, so that ppu obtains polarization information according to the detection electric current of all vibration detection lines, and according to the polarization information
The input offset current into every vibration compensation line.
2. circuit board according to claim 1, which is characterized in that the voice coil includes two the first opposite sides and two
The second opposite side；
The cabling area include correspond respectively to two described first while or two polarization compensations being arranged of two described second whiles
Area；Alternatively,
The cabling area include correspond respectively to one described first while and two polarization compensations being arranged of one described second while
Area；Alternatively,
The cabling area include correspond respectively to two described first while and four polarization compensations being arranged of two described second whiles
Area.
3. circuit board according to claim 1, which is characterized in that the loudspeaker includes side outlet sound mouth, the voice coil packet
Include the first side close to the side outlet sound mouth, the cabling area include be respectively arranged on described first while and it is described first while it is opposite
The Liang Ge polarization compensation area on side.
4. circuit board according to claim 2 or 3, which is characterized in that the circuit board includes close to the first face of voice coil
With the second face for deviating from voice coil；
The polarization compensation area is set on the first face or the second face of the circuit board.
5. circuit board according to claim 2 or 3, which is characterized in that the circuit board includes close to the first face of voice coil
With the second face for deviating from voice coil；
The polarization compensation area is set on the first face and the second face of the circuit board；Wherein
At least two polarization compensation areas include the second compensating basin set on first compensating basin in the first face and set on the second face.
6. circuit board according to claim 1 is equipped with multiple and institute far from the outboard end of loudspeaker in the circuit board
State the electric connection terminal of ppu electrical connection；Wherein,
The vibration detection line and the vibration compensation line are connect by the cabling in the cabling area with the electric connection terminal.
7. circuit board according to claim 1, which is characterized in that the circuit board sets that there are two for two with voice coil
The welding disk that voice coil leads are electrically connected.
8. a kind of loudspeaker, which is characterized in that including such as described in any item circuit boards of claim 1-7.
9. a kind of electronic equipment, which is characterized in that be electrically connected including loudspeaker as claimed in claim 8 and with the loudspeaker
Processor；
The processor, which is used to receive the detection electric current according to all vibration detection lines and handles, obtains polarization information, and according to institute
State polarization information input offset current into every vibration compensation line.
10. a kind of loudspeaker polarization compensation method, which is characterized in that including：
The detection electric current of the circuit board fixed with voice coil output when receiving speaker voice coil vibrations；
Polarization information is obtained according to the detection electric current of all vibration detection lines；
According to the polarization information into every vibration compensation line input offset current,
Wherein, circuit board includes circuit board body and the cabling area in circuit board body, and the cabling area includes at least two
A polarization compensation corresponding with voice coil area, each polarization compensation area include a vibration detection line and a vibration compensation
Line.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107503.3A CN108882129B (en) | 2018-09-21 | 2018-09-21 | Circuit board, loudspeaker, electronic equipment and polarization compensation method |
| PCT/CN2018/122703 WO2020056961A1 (en) | 2018-09-21 | 2018-12-21 | Circuit board, speaker, electronic device, and polarization compensating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811107503.3A CN108882129B (en) | 2018-09-21 | 2018-09-21 | Circuit board, loudspeaker, electronic equipment and polarization compensation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108882129A true CN108882129A (en) | 2018-11-23 |
| CN108882129B CN108882129B (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811107503.3A Active CN108882129B (en) | 2018-09-21 | 2018-09-21 | Circuit board, loudspeaker, electronic equipment and polarization compensation method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108882129B (en) |
| WO (1) | WO2020056961A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110662139A (en) * | 2019-09-30 | 2020-01-07 | 歌尔股份有限公司 | Sound production device and auxiliary vibration method |
| WO2020056961A1 (en) * | 2018-09-21 | 2020-03-26 | 歌尔股份有限公司 | Circuit board, speaker, electronic device, and polarization compensating method |
| CN113132868A (en) * | 2021-04-23 | 2021-07-16 | 维沃移动通信有限公司 | Speaker, amplitude adjusting method, amplitude adjusting device, and electronic apparatus |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100189284A1 (en) * | 2007-07-18 | 2010-07-29 | Mitsukazu Kuze | Vibration device and acoustic system |
| CN103563397A (en) * | 2011-05-13 | 2014-02-05 | 易音特电子株式会社 | High output micro speaker |
| CN104113803A (en) * | 2014-07-17 | 2014-10-22 | 瑞声声学科技(深圳)有限公司 | Multi-voice-coil based loudspeaker system |
| CN104796828A (en) * | 2015-05-04 | 2015-07-22 | 歌尔声学股份有限公司 | Speaker module |
| CN105144748A (en) * | 2013-04-26 | 2015-12-09 | 楼氏国际采购中心（马来西亚）私人有限公司 | Double coil speaker |
| CN205040022U (en) * | 2015-07-31 | 2016-02-17 | 张扬 | Miniature sounder |
| CN105375854A (en) * | 2014-08-18 | 2016-03-02 | 恩智浦有限公司 | Voice coil motor and loudspeaker controller |
| CN106101932A (en) * | 2016-07-11 | 2016-11-09 | 深圳天珑无线科技有限公司 | A kind of loudspeaker audio drive circuit, method and intelligent terminal |
| CN107959914A (en) * | 2017-12-12 | 2018-04-24 | 歌尔股份有限公司 | A kind of loudspeaker module |
| WO2018161475A1 (en) * | 2017-03-10 | 2018-09-13 | 华为技术有限公司 | Speaker unit, speaker, terminal and speaker control method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2355405Y (en) * | 1997-12-15 | 1999-12-22 | 洪可应 | Noise silencer |
| US7242788B2 (en) * | 2004-08-16 | 2007-07-10 | Hpv Technologies, Llc | Securing magnets in high-efficiency planar magnetic transducers |
| CN204425642U (en) * | 2015-02-02 | 2015-06-24 | 瑞声光电科技(常州)有限公司 | Loud speaker |
| CN206759713U (en) * | 2017-03-27 | 2017-12-15 | 歌尔科技有限公司 | sound-producing device |
| CN207124750U (en) * | 2017-07-28 | 2018-03-20 | 歌尔科技有限公司 | Loudspeaker monomer, loudspeaker module and electronic equipment |
| CN108882129B (en) * | 2018-09-21 | 2021-04-02 | 歌尔股份有限公司 | Circuit board, loudspeaker, electronic equipment and polarization compensation method |
-
2018
- 2018-09-21 CN CN201811107503.3A patent/CN108882129B/en active Active
- 2018-12-21 WO PCT/CN2018/122703 patent/WO2020056961A1/en active Application Filing
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100189284A1 (en) * | 2007-07-18 | 2010-07-29 | Mitsukazu Kuze | Vibration device and acoustic system |
| CN103563397A (en) * | 2011-05-13 | 2014-02-05 | 易音特电子株式会社 | High output micro speaker |
| CN105144748A (en) * | 2013-04-26 | 2015-12-09 | 楼氏国际采购中心（马来西亚）私人有限公司 | Double coil speaker |
| CN104113803A (en) * | 2014-07-17 | 2014-10-22 | 瑞声声学科技(深圳)有限公司 | Multi-voice-coil based loudspeaker system |
| CN105375854A (en) * | 2014-08-18 | 2016-03-02 | 恩智浦有限公司 | Voice coil motor and loudspeaker controller |
| CN104796828A (en) * | 2015-05-04 | 2015-07-22 | 歌尔声学股份有限公司 | Speaker module |
| CN205040022U (en) * | 2015-07-31 | 2016-02-17 | 张扬 | Miniature sounder |
| CN106101932A (en) * | 2016-07-11 | 2016-11-09 | 深圳天珑无线科技有限公司 | A kind of loudspeaker audio drive circuit, method and intelligent terminal |
| WO2018161475A1 (en) * | 2017-03-10 | 2018-09-13 | 华为技术有限公司 | Speaker unit, speaker, terminal and speaker control method |
| CN107959914A (en) * | 2017-12-12 | 2018-04-24 | 歌尔股份有限公司 | A kind of loudspeaker module |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020056961A1 (en) * | 2018-09-21 | 2020-03-26 | 歌尔股份有限公司 | Circuit board, speaker, electronic device, and polarization compensating method |
| CN110662139A (en) * | 2019-09-30 | 2020-01-07 | 歌尔股份有限公司 | Sound production device and auxiliary vibration method |
| CN113132868A (en) * | 2021-04-23 | 2021-07-16 | 维沃移动通信有限公司 | Speaker, amplitude adjusting method, amplitude adjusting device, and electronic apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020056961A1 (en) | 2020-03-26 |
| CN108882129B (en) | 2021-04-02 |
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