CN214851813U - Super linear multi-sound film micro loudspeaker - Google Patents
Super linear multi-sound film micro loudspeaker Download PDFInfo
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- CN214851813U CN214851813U CN202121013434.7U CN202121013434U CN214851813U CN 214851813 U CN214851813 U CN 214851813U CN 202121013434 U CN202121013434 U CN 202121013434U CN 214851813 U CN214851813 U CN 214851813U
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Abstract
The utility model relates to a speaker technical field discloses super linear polyphonic membrane micro loudspeaker, the upper surface of basin frame is provided with big diaphragm, and the upper surface of basin frame installs the protecting cover in the top of big diaphragm, the inside of basin frame is provided with second china department, the top symmetry of second china department is provided with second magnet, the top of second magnet is provided with the voice coil loudspeaker voice coil, the outside symmetry of voice coil loudspeaker voice coil is provided with the FPC piece, the top of FPC piece is provided with little diaphragm, first china department is installed to the top of little diaphragm, first magnet is installed to the top of first china department, the top block of first magnet has U type lid cup. This novel structure is mainly diaphragm and FPC centering design, and the structure of avoiding the big amplitude of voice coil loudspeaker voice coil vibration operation to cause touches, can make the vibration system's of speaker amplitude receive restriction and compliance better, compensaties the not enough of miniature speaker power low and low-frequency distortion height to avoid the production and the low-frequency distortion of noise serious.
Description
Technical Field
The utility model relates to a speaker technical field specifically is super linear many sound membrane micro loudspeaker.
Background
The miniature loudspeaker mainly comprises a frame, magnetic steel, pole pieces, a sound film, a front cover, a wiring board, damping cloth and the like, wherein a magnetic circuit system of the loudspeaker forms an annular magnetic gap, a uniform magnetic field (the magnitude and the direction of magnetic induction intensity are the same everywhere) is distributed in the annular magnetic gap, a vibration system of the loudspeaker is formed by winding a lead into a German annular voice coil and a vibration film connected with the German annular voice coil, after the voice coil is fed with signal voltage, current is generated, the voice coil cuts magnetic lines of force, acting force is generated, the vibration film is driven to move up and down together, and the vibration film drives air to generate corresponding sound.
However, at present, because the size of the micro-speaker is very thin, under the condition of high power, the amplitude is large, the voice coil easily touches the magnetic circuit system, the low-frequency distortion is high, and the noise generated by the product is poor. Accordingly, those skilled in the art have provided a super-linear multi-diaphragm micro-speaker to solve the problems set forth in the background art described above.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a many sound membrane miniature speaker of super linearity to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
super linear polyphonic membrane micro loudspeaker, including the basin frame, the upper surface of basin frame is provided with big diaphragm, and the upper surface of basin frame installs the protecting cover in the top of big diaphragm, the inside of basin frame is provided with the second china department, the top symmetry of second china department is provided with second magnet, the top of second magnet is provided with the voice coil loudspeaker voice coil, the outside symmetry of voice coil loudspeaker voice coil is provided with the FPC piece, the top of FPC piece is provided with little diaphragm, first china department is installed to the top of little diaphragm, first magnet is installed to the top of first china department, the top block of first magnet has U type cup.
As a further aspect of the present invention: the small diaphragms are arranged in a rectangular shape, two groups of small diaphragms are symmetrically arranged above the FPC sheet, and the small diaphragms are identical in size and shape.
As a further aspect of the present invention: the FPC piece is provided with two sets of in the same shape of the top of voice coil loudspeaker voice coil, and the front surface and the rear surface of FPC piece contact with the front surface and the rear surface of voice coil loudspeaker voice coil respectively each other.
As a further aspect of the present invention: the second magnets are symmetrically arranged in two groups in a long strip shape, and the length of the first washer is the same as that of the inner side of the U-shaped cover cup.
As a further aspect of the present invention: two groups of soldering lugs are arranged above the basin frame, and the basin frame and the protecting cover are fixed through screws.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a structure mainly is diaphragm and FPC piece centering design, and the structure of having avoided the big amplitude of voice coil loudspeaker voice coil vibration operation to cause touches, can be so that the vibration system's of speaker amplitude receives restriction and compliance better, has compensatied the not enough that miniature speaker power is low and low-frequency distortion is high to avoid the production and the low-frequency distortion of noise serious.
Drawings
FIG. 1 is a schematic structural diagram of a super-linear multi-diaphragm micro-speaker;
fig. 2 is an exploded view of a super linear multi-diaphragm micro-speaker.
In the figure: 1. a U-shaped cover cup; 2. a large membrane; 3. a protective cover; 4. a basin stand; 5. a first magnet; 6. a first washer; 7. a voice coil; 8. a second magnet; 9. a second washer; 10. a small membrane; 11. an FPC sheet.
Detailed Description
Referring to fig. 1-2, in the embodiment of the present invention, a super-linear multi-diaphragm micro speaker includes a frame 4, a large diaphragm 2 is disposed on an upper surface of the frame 4, a protecting cover 3 is disposed on the upper surface of the frame 4 above the large diaphragm 2, two sets of soldering lugs are disposed above the frame 4, the frame 4 and the protecting cover 3 are fixed by screws, a second washer 9 is disposed inside the frame 4, a second magnet 8 is symmetrically disposed above the second washer 9, a voice coil 7 is disposed above the second magnet 8, FPC strips 11 are symmetrically disposed outside the voice coil 7, the FPC strips 11 are similarly disposed above the voice coil 7 in two sets, a front surface and a rear surface of the FPC strips 11 are respectively in contact with the front surface and the rear surface of the voice coil 7, a small diaphragm 10 is disposed above the FPC strips 11, the small diaphragm 10 is arranged in a rectangular shape, and the small diaphragm 10 is symmetrically disposed above the FPC strips 11 in two sets, the size of little diaphragm 10 is the same, and the shape is the same, and first china department 6 is installed to the top of little diaphragm 10, and first magnet 5 is installed to the top of first china department 6, and second magnet 8 is provided with two sets ofly for rectangular form symmetry, and the length of first china department 6 is the same with the inboard length of U type cup 1, and the top block of first magnet 5 has U type cup 1, the utility model discloses a structure mainly is little diaphragm 10 and FPC piece 11 centering design, and the structure of having avoidd the big amplitude of voice coil loudspeaker voice coil 7 vibration operation and causing touches, can be so that the vibration system's of speaker amplitude receives restriction and compliance better, has compensatied the low and high not enough of low-frequency distortion of micro loudspeaker power to avoid the production of noise and low-frequency distortion serious.
The utility model discloses a theory of operation is: this novel structure has adopted two little diaphragms 10 and a big diaphragm 2, and two FPC pieces 11 are connected to the vibration system on the voice coil loudspeaker voice coil 7 again, amplitude restriction during up-and-down motion, the equilibrium is stable, loudspeaker bear power and low frequency distortion are better, and at the during operation, voice coil loudspeaker voice coil 7 is behind the feed-in signal voltage, and the production electric current, voice coil loudspeaker voice coil 7 cuts the magnetic line of force, produces the effort, drive the vibrating diaphragm up-and-down motion together, corresponding sound takes place for vibrating diaphragm driving air, little diaphragm 10 in the novel structure and FPC piece 11 centering design, it touches to have avoidd the structure that the big amplitude of voice coil loudspeaker voice coil 7 vibration operation caused, can make the vibration system's of speaker amplitude receive restriction and compliance better, thereby improved the power of product and reduced low frequency distortion, remedied the low and high not enough of low frequency distortion of micro speaker power.
The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. Super linear polyphonic membrane micro loudspeaker, including basin frame (4), its characterized in that, the upper surface of basin frame (4) is provided with big diaphragm (2), and the upper surface of basin frame (4) installs protecting cover (3) in the top of big diaphragm (2), the inside of basin frame (4) is provided with second china department (9), the top symmetry of second china department (9) is provided with second magnet (8), the top of second magnet (8) is provided with voice coil loudspeaker voice coil (7), the outside symmetry of voice coil loudspeaker voice coil (7) is provided with FPC piece (11), the top of FPC piece (11) is provided with little diaphragm (10), first china department (6) is installed to the top of little diaphragm (10), first magnet (5) are installed to the top of first china department (6), the top block of first magnet (5) has U type cup (1).
2. The ultra-linear multi-diaphragm micro-speaker according to claim 1, wherein the small diaphragms (10) are arranged in a rectangle, and two sets of small diaphragms (10) are symmetrically arranged above the FPC (11), and the small diaphragms (10) have the same size and shape.
3. The micro-speaker as claimed in claim 1, wherein the FPC sheets (11) are identically provided in two sets above the voice coil (7), and the front and rear surfaces of the FPC sheets (11) are in contact with the front and rear surfaces of the voice coil (7), respectively.
4. The ultra-linear multi-diaphragm micro-speaker according to claim 1, wherein the second magnets (8) are symmetrically arranged in two groups in a long shape, and the length of the first washer (6) is the same as the length of the inner side of the U-shaped cover cup (1).
5. The ultra-linear multi-diaphragm micro-speaker according to claim 1, wherein two sets of soldering lugs are arranged above the frame (4), and the frame (4) and the cover (3) are fixed by screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121013434.7U CN214851813U (en) | 2021-05-13 | 2021-05-13 | Super linear multi-sound film micro loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121013434.7U CN214851813U (en) | 2021-05-13 | 2021-05-13 | Super linear multi-sound film micro loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214851813U true CN214851813U (en) | 2021-11-23 |
Family
ID=78773396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121013434.7U Active CN214851813U (en) | 2021-05-13 | 2021-05-13 | Super linear multi-sound film micro loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214851813U (en) |
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2021
- 2021-05-13 CN CN202121013434.7U patent/CN214851813U/en active Active
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