CN217721475U - Double-unit module of moving coil and flat horn - Google Patents
Double-unit module of moving coil and flat horn Download PDFInfo
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- CN217721475U CN217721475U CN202221536865.6U CN202221536865U CN217721475U CN 217721475 U CN217721475 U CN 217721475U CN 202221536865 U CN202221536865 U CN 202221536865U CN 217721475 U CN217721475 U CN 217721475U
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Abstract
The utility model discloses a two unit module of moving coil and flat loudspeaker, include: the shell comprises a first shell and a second shell, wherein the second shell is connected to the front surface of the first shell, the rear surfaces of the first shell and the second shell are respectively provided with a first cavity and a second cavity, and the first cavity is communicated with the second cavity; the moving-coil woofer is arranged in the first cavity; and the flat-plate tweeter is arranged in the second cavity. The utility model relates to a look after acoustics loudspeaker of low frequency and high frequency.
Description
Technical Field
The invention relates to the technical field of electroacoustic loudspeakers, in particular to a double-unit module of a moving coil and a flat plate loudspeaker.
Background
Conventional micro acoustic horns are mainly classified into woofers and tweeters according to the design characteristics of the horns.
The traditional woofer, generally a moving coil type loudspeaker, mainly changes the current direction in the coil through an alternating current signal, so that the coil reciprocates in a permanent magnetic field, and a vibrating diaphragm is pushed to make a sound. A conventional tweeter, which is generally a moving-iron receiver, is mainly characterized in that an armature is magnetized by a fixed coil, so that the armature vibrates back and forth in a permanent magnetic field, thereby driving a diaphragm to make sound.
The high-end music earphone pursues that the acoustic curve has balanced performance in low-frequency and high-frequency bands, and needs to have better sound pressure level. There is the indisputable formula earphone of circle in the market at present, through the combination mode of moving coil + moving iron for high frequency and low frequency all have better music and become present. However, the coil-type earphone has the disadvantages that the moving coil and the moving-iron speaker have large differences in volume and acoustic phase, the two speakers are difficult to combine into a whole module, and great difficulty is caused in production assembly and tuning during earphone application. In addition, the scheme of a low-frequency moving coil (large size) and a high-frequency moving coil (small size) also exists in the market, but the high-frequency performance of the high-frequency moving coil loudspeaker is relatively poorer than that of other high-frequency loudspeakers.
Therefore, a dual-unit module of a moving coil and a flat horn is needed.
Disclosure of Invention
The invention aims to provide a double-unit module of a moving coil and a flat horn.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: the utility model provides a two unit module of moving coil and dull and stereotyped loudspeaker includes:
the second shell is connected to the front surface of the first shell, a first cavity and a second cavity are respectively formed in the rear surfaces of the first shell and the second shell, and the first cavity is communicated with the second cavity;
the moving-coil woofer is arranged in the first cavity;
and the flat-plate tweeter is arranged in the second cavity.
The first shell and the second shell are both shells with cylindrical structures, the first shell and the second shell are integrally and structurally arranged on the same central axis, and the outer diameter of the second shell is smaller than that of the first shell.
The upper surface of the first shell is uniformly provided with bass sound outlet holes at the peripheral side of the second shell.
And a high-pitch sound outlet hole is formed in the center of the upper surface of the second shell.
Still including frequency division circuit board and flexible circuit board, frequency division circuit board locates the rear surface of first casing, frequency division circuit board is connected to through inside coil moving coil formula woofer, frequency division circuit board passes through flexible circuit board is connected with dull and stereotyped tweeter.
The flat tweeter is provided with:
two circular magnets, magnet A and magnet B respectively;
two circular coils, coil A and coil B respectively;
a vibrating diaphragm support and a metal vibrating diaphragm;
the vibrating diaphragm support and the metal vibrating diaphragm are assembled through glue;
and the coil A and the coil B are respectively assembled on two sides of the metal vibrating diaphragm through glue.
The diameters of the two magnets are larger than those of the two coils, and the magnet A is combined with the vibrating diaphragm support through glue and is coaxial with the coil A; the magnet B is combined with the metal vibrating diaphragm through glue and is coaxial with the coil B.
The diaphragm support material needs to use a non-magnetic conductive material, such as a copper ring or a plastic ring, the flexible circuit board is bonded to the magnet B through glue, and the coil a and the coil B need to be connected to the flexible circuit board through soldering tin respectively.
The moving-coil horn 1 includes:
the second shell and the metal protecting cover are assembled through glue; the device is used for isolating the front unit and the rear unit to prevent interference;
the plastic bracket is combined with the metal protecting cover through glue;
the moving coil loudspeaker diaphragm is assembled on the plastic bracket through glue;
the coil C is a coil of the moving coil loudspeaker and is assembled on the metal vibrating diaphragm through glue;
a magnetic circuit assembly, the magnetic circuit assembly comprising: washer, magnet C, T iron, and with the plastic support passes through glue and combines together.
The coil C is soldered to a PCB and the other end of the flexible circuit board is also soldered to the PCB.
The moving-coil loudspeaker further comprises: and the tuning net is bonded to the T-shaped iron through back glue.
Compared with the prior art, the utility model relates to a novel acoustic loudspeaker of compromise low frequency and high frequency of a section had both possessed the low frequency acoustic performance of movable coil, has combined the dull and stereotyped loudspeaker of a novel design simultaneously, possess outstanding high frequency acoustic performance, and these two kinds of loudspeaker can assemble very easily simultaneously and combine to become a two unit form module, make things convenient for the earphone to use the equipment.
The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings, which illustrate embodiments of the invention.
Drawings
Fig. 1 is a view of an angle of a dual unit module of the moving coil and flat horn of the present invention.
Fig. 2 is a view showing another angle of the dual unit module of the moving coil and flat plate horn shown in fig. 1.
Fig. 3 is an exploded view of a dual cell module of the moving coil and flat panel horn shown in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Hereinafter, if the terms "include", "have" and their derivatives are used in various embodiments of the present invention, they are only intended to indicate specific features, numerals, steps, operations, elements, components or combinations of the foregoing, and should not be understood as first excluding the existence of or adding possibility of one or more other features, numerals, steps, operations, elements, components or combinations of the foregoing.
Furthermore, to the extent that the present disclosure is directed to the terms "first," "second," "third," etc., this is used merely to distinguish one element from another, and is not intended to indicate or imply relative importance.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present invention belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their contextual meaning in the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments of the present invention.
Referring to fig. 1, the present invention provides a dual-unit module 100 for a moving coil and a flat horn, including:
the portable electronic device comprises a first shell 10 and a second shell 7, wherein the second shell 7 is connected to the front surface of the first shell 10, a first cavity and a second cavity are respectively formed in the rear surfaces of the first shell 10 and the second shell 7, and the first cavity is communicated with the second cavity;
wherein the second housing 7 is a metal shell.
The moving-coil woofer 1 is arranged in the first cavity, and the moving-coil woofer 1 is arranged in the first cavity;
and the flat tweeter 2 is arranged in the second cavity.
The utility model discloses a double-unit module product, which is assembled and combined coaxially by two circular loudspeakers. The unit at the rear position is a moving coil woofer 1, and the unit at the front position is a flat tweeter 2.
The first shell 10 and the second shell 7 are both shells of cylindrical structures, the first shell 10 and the second shell 7 are integrally and structurally arranged on the same central axis, and the outer diameter of the second shell 7 is smaller than that of the first shell 10.
The upper surface of the first housing 10 is uniformly provided with bass sound outlet holes 3 at the peripheral side of the second housing 7.
A high pitch sound outlet hole 4 is formed in the center of the upper surface of the second shell 7.
The flat tweeter 2 transmits sound outward through the sound outlet hole 4.
Referring to fig. 2 and 3, the woofer further includes a crossover circuit board 6 and a flexible circuit board 5, the crossover circuit board 6 is disposed on the rear surface of the first housing 10, the crossover circuit board 6 is connected to the moving-coil woofer 1 through an internal coil, and the crossover circuit board 6 is connected to the flat tweeter 2 through the flexible circuit board 5.
Referring to fig. 3, the flat tweeter 2 is provided with:
two circular magnets, magnet A and magnet B, magnet A is numbered 11, and magnet B is numbered 16;
two circular coils, namely a coil A and a coil B, wherein the coil A is marked with 12, and the coil B is marked with 15;
a diaphragm support 13 and a metal diaphragm 14;
the diaphragm support 13 and the metal diaphragm 14 are assembled through glue;
the coil a and the coil B are respectively assembled on two sides of the metal diaphragm 14 through glue.
The diameters of the two magnets are larger than those of the two coils, and the magnet A is combined with the vibrating diaphragm support 13 through glue and is coaxial with the coil A; the magnet B is bonded to the metal diaphragm 14 by glue and is coaxial with the coil B.
The material of the diaphragm support 13 needs to use a non-magnetic conductive material, such as a copper ring or a plastic ring, the flexible circuit board 5 is bonded to the magnet B by glue, and the coil a and the coil B need to be connected to the flexible circuit board 5 by soldering respectively.
The moving coil speaker 1 includes:
the metal protecting cover 18, the said second body 7 assembles with metal protecting cover 18 through the glue; the device is used for isolating the front unit and the rear unit to prevent interference;
a plastic bracket 21 combined with the metal protecting cover 18 by glue;
the moving coil loudspeaker diaphragm 19 is assembled on the plastic bracket 21 through glue;
the coil C is the coil of the moving coil loudspeaker and is assembled on the metal vibrating diaphragm 14 through glue, wherein the coil C is marked as 20;
a magnetic circuit combination, the magnetic circuit combination comprising: washer 22, magnet C (reference numeral 23), T-iron 24, and are combined with the plastic bracket 21 by glue.
The coil C is soldered to the PCB 25 and the other end of the flexible circuit board is also soldered to a PCB 25.
The moving-coil loudspeaker 1 further comprises: a tuning net 26, wherein the tuning net 26 is adhered to the T-iron 24 through a back adhesive.
The utility model discloses a theory of operation:
and an external input signal is input to the moving coil and the flat horn through the PCB. The two loudspeakers simultaneously perform sound production.
The working principle of the moving-coil type horn is the same as that of the conventional horn.
Now, the flat tweeter is mainly introduced: the magnet A and the magnet B need to be magnetized to form a permanent magnet, and the magnetizing directions of the magnet A and the magnet B are the same; an alternating current signal is input from the outside and passes through the PCB board, the flexible circuit board, the coil A and the coil B, and alternating magnetic fields are generated in the two coils, so that the two coils respectively vibrate in a reciprocating manner in the permanent magnetic fields formed by the magnet A and the magnet B. Attention is paid to the winding directions of the coil a and the coil B to determine the input current direction, and the coil a and the coil B are ensured to move in the same direction, namely, move leftwards or rightwards simultaneously. Thus, under the common pushing of the two coils, the metal diaphragm generates vibration.
The resonance frequency of metal vibrating diaphragm is higher, is fit for using as the vibrating diaphragm material on the high frequency loudspeaker.
The diaphragm support is used for isolating the magnetic field formed by the magnet A and the magnet B.
The PCB can be formed with a frequency divider circuit using resistors and capacitors, and the circuit is adapted according to the acoustic frequency response curve and phase curve of the moving coil loudspeaker and the flat-panel tweeter loudspeaker.
The innovation points/advantages of the invention are now introduced:
a. structure and sound production principle of flat horn
b. The circular flat plate horn is designed to form a circular coaxial structure with the moving coil horn. Not only is beneficial to the superposition of sound, but also is convenient for the structure assembly.
c. The two loudspeakers are assembled in the same metal shell to form a whole. The earphone is convenient to assemble and use.
d. The acoustic frequency response curve of the double-unit module product is excellent. The middle and low frequency of 20-1 kHz is improved by more than 7-8 dB compared with the common double-unit earphone; the high frequency bandwidth more than 8kHz can promote more than 3kHz, for example, general earphone decay is 8kHz to 100dB, the utility model discloses can promote more than 11 kHz.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is defined by the appended claims.
Claims (10)
1. The utility model provides a two unit module of moving coil and dull and stereotyped loudspeaker which characterized in that includes:
the shell comprises a first shell and a second shell, wherein the second shell is connected to the front surface of the first shell, the rear surfaces of the first shell and the second shell are respectively provided with a first cavity and a second cavity, and the first cavity is communicated with the second cavity;
the moving-coil woofer is arranged in the first cavity;
and the flat-plate tweeter is arranged in the second cavity.
2. The dual-unit moving-coil and flat-plate loudspeaker module as claimed in claim 1, wherein the first and second housings are cylindrical housings, and are integrally disposed on a same central axis, and the outer diameter of the second housing is smaller than that of the first housing.
3. The dual-unit module of a moving coil and a flat horn as claimed in claim 2, wherein the upper surface of said first housing is uniformly provided with bass sound outlet holes at the peripheral side of said second housing.
4. The dual cell module of a moving coil and a flat horn as claimed in claim 2, wherein a high sound outlet hole is formed at the center of the upper surface of said second housing.
5. The dual-unit moving-coil and flat-panel speaker module as claimed in claim 2, further comprising a crossover circuit board and a flexible circuit board, wherein said crossover circuit board is disposed on a rear surface of said first housing, said crossover circuit board is connected to said moving-coil woofer through an internal coil, and said crossover circuit board is connected to a flat-panel tweeter through said flexible circuit board.
6. The dual-unit moving-coil and flat-plate loudspeaker as claimed in claim 5, wherein said flat-plate loudspeaker is provided with:
two circular magnets, magnet A and magnet B respectively;
two circular coils, coil A and coil B respectively;
a vibrating diaphragm bracket and a metal vibrating diaphragm;
the vibrating diaphragm support and the metal vibrating diaphragm are assembled through glue;
the coil A and the coil B are respectively assembled on two sides of the metal vibrating diaphragm through glue;
the magnet A is combined with the diaphragm support through glue and is coaxial with the coil A; the magnet B is combined with the metal vibrating diaphragm through glue and is coaxial with the coil B.
7. The dual-unit moving-coil and flat-panel horn module as claimed in claim 6, wherein said flexible circuit board is adhered to said magnet B by glue, and said coil A and coil B are respectively connected to said flexible circuit board by soldering.
8. The dual-unit moving-coil and flat-panel horn module of claim 6 wherein said moving-coil horn comprises:
the second shell and the metal protecting cover are assembled through glue;
the plastic bracket is combined with the metal protecting cover through glue;
the moving coil loudspeaker diaphragm is assembled on the plastic bracket through glue;
the coil C is a coil of the moving coil loudspeaker and is assembled on the metal vibrating diaphragm through glue;
a magnetic circuit assembly, the magnetic circuit assembly comprising: washer, magnet C, T iron, and with the plastic support passes through glue and combines together.
9. The dual-unit moving-coil and plate horn module of claim 8 wherein the coil C is solder-bonded to a PCB board and the other end of the flexible circuit board is also soldered to the PCB board.
10. The dual-unit moving-coil and flat-panel horn module of claim 9 wherein said moving-coil horn further comprises: and the tuning net is adhered to the T iron through back glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221536865.6U CN217721475U (en) | 2022-06-17 | 2022-06-17 | Double-unit module of moving coil and flat horn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221536865.6U CN217721475U (en) | 2022-06-17 | 2022-06-17 | Double-unit module of moving coil and flat horn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217721475U true CN217721475U (en) | 2022-11-01 |
Family
ID=83801201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221536865.6U Active CN217721475U (en) | 2022-06-17 | 2022-06-17 | Double-unit module of moving coil and flat horn |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217721475U (en) |
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2022
- 2022-06-17 CN CN202221536865.6U patent/CN217721475U/en active Active
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