CN211959529U - Single-side sound-emitting dual-frequency horn - Google Patents
Single-side sound-emitting dual-frequency horn Download PDFInfo
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- CN211959529U CN211959529U CN202020830534.8U CN202020830534U CN211959529U CN 211959529 U CN211959529 U CN 211959529U CN 202020830534 U CN202020830534 U CN 202020830534U CN 211959529 U CN211959529 U CN 211959529U
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Abstract
The utility model discloses a unilateral play sound dual-frenquency loudspeaker, including shell and first through-hole, be equipped with T iron in the shell, T iron has the boss, be equipped with the cavity in the boss, be equipped with first magnetic circuit subassembly in the cavity, T iron below is equipped with first sound membrane, T iron top is equipped with the second sound membrane, first through-hole runs through the bottom surface of first magnetic circuit subassembly and the top surface of boss, the bottom of shell is equipped with the second through-hole, be equipped with the through hole that corresponds with first through-hole on the first sound membrane, the top surface of first sound membrane has the bonded area that bonds with first magnetic circuit subassembly, the bonded area surrounds the through hole. The one-sided sounding of the dual-frequency loudspeaker is realized, the work of a tuner is simplified, and the work efficiency is improved; during production, an operator does not need to worry about that one side of the loudspeaker is blocked due to improper operation, so that the poor loss in the production process is greatly reduced, and the manufacturing cost is saved; the tone quality of dual-frenquency loudspeaker has been promoted, has saved the structural space of finished product earphone, does benefit to the miniaturization of finished product earphone.
Description
Technical Field
The utility model relates to an electroacoustic transducer technical field especially relates to unilateral play sound dual-frenquency loudspeaker.
Background
The double-frequency horn mainly comprises an internal magnetic horn and an external magnetic horn, wherein the T iron plays a key role in connection, and is a magnetic conductor of the external magnetic horn and a magnetic conductor of the internal magnetic horn.
The presence of a dual-band speaker largely addresses this problem as the demand for heavy bass and bright treble is becoming more stringent in the current earphone market. However, most of the dual-frequency speakers in the current market are high pitch speakers and low pitch speakers, which output sound from two opposite sides, so that the finished earphone is complex to debug, and the tuner needs to perform more processing to achieve the expected sound quality effect.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a single-side sound-emitting dual-frequency horn is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: the unilateral sound-emitting dual-frequency loudspeaker comprises a shell and a first through hole, wherein T iron is arranged in the shell, the T iron is provided with a boss, a cavity is arranged in the boss, a first magnetic circuit assembly is arranged in the cavity, a first sound film is arranged below the T iron, a second sound film is arranged above the T iron, the first through hole penetrates through the bottom surface of the first magnetic circuit assembly and the top surface of the boss, a second through hole is arranged at the bottom of the shell, a through hole corresponding to the first through hole is formed in the first sound film, a bonding area bonded with the first magnetic circuit assembly is formed in the top surface of the first sound film, and the bonding area surrounds the through hole.
Further, the adhesive region is a closed annular region.
Furthermore, the first magnetic circuit assembly comprises a first magnetic steel fixed on the T iron and a first washer fixed on the bottom surface of the first magnetic steel, the bottom surface of the first washer is provided with an annular elevated part, and the first sound film is bonded on the bottom surface of the elevated part through the bonding area.
Further, the first washer and the elevated portion are integrally formed.
Furthermore, the first washer and the elevated part are of a split structure, and the elevated part is fixed on the first washer.
Furthermore, the material of the elevated part is copper.
Furthermore, a first voice coil is arranged on the top surface of the first voice film, and the first voice coil is arranged around the first magnetic circuit assembly.
Furthermore, a second magnetic circuit assembly is arranged on the top surface of the T iron, the outer edge of the second sound film is fixed on the second magnetic circuit assembly, a second voice coil is arranged on the bottom surface of the second sound film, and the second voice coil is located between the second magnetic circuit assembly and the boss.
Furthermore, the second magnetic circuit assembly comprises a second magnetic steel fixed on the T iron and a second washer fixed on the top surface of the second magnetic steel.
Further, the number of the second through holes is multiple.
The beneficial effects of the utility model reside in that: the through holes aligned with the first through holes are formed in the first sound film, and the area around the through holes of the first sound film is bonded and fixed with the first magnetic circuit assembly, so that air vibration generated by the second sound film can be transmitted outwards through the first through holes, the through holes and the second through holes in sequence, the same-side sound production of the first sound film and the second sound film is realized, namely, the single-side sound production of the dual-frequency loudspeaker is realized, the work of a tuner is simplified, and the work efficiency is improved; during production, an operator does not need to worry about that one side of the loudspeaker is blocked due to improper operation, so that the poor loss in the production process is greatly reduced, and the manufacturing cost is saved; the tone quality of dual-frenquency loudspeaker has been promoted, has saved the structural space of finished product earphone, does benefit to the miniaturization of finished product earphone.
Drawings
Fig. 1 is a cross-sectional view of a single-side sound-emitting dual-frequency speaker according to a first embodiment of the present invention;
fig. 2 is a top view of a first sound film in a single-sided sound-emitting dual-frequency horn according to a first embodiment of the present invention.
Description of reference numerals:
1. a housing; 2. a first through hole; 3. t iron; 4. a boss; 5. a first magnetic circuit assembly; 6. a first diaphragm; 7. a second sound film; 8. a second through hole; 9. a through hole; 10. an adhesive area; 11. a first magnetic steel; 12. a first washer; 13. a raised portion; 14. a first voice coil; 15. a second magnetic circuit assembly; 16. a second voice coil; 17. a second magnetic steel; 18. and (5) second washer.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 and 2, the single-side sound-emitting dual-frequency loudspeaker includes a housing 1 and a first through hole 2, a T-iron 3 is arranged in the housing 1, the T-iron 3 has a boss 4, a cavity is arranged in the boss 4, a first magnetic circuit assembly 5 is arranged in the cavity, a first sound film 6 is arranged below the T-iron 3, a second sound film 7 is arranged above the T-iron 3, the first through hole 2 penetrates through the bottom surface of the first magnetic circuit assembly 5 and the top surface of the boss 4, a second through hole 8 is arranged at the bottom of the housing 1, a through hole 9 corresponding to the first through hole 2 is arranged on the first sound film 6, an adhesion area 10 adhered to the first magnetic circuit assembly 5 is arranged on the top surface of the first sound film 6, and the adhesion area 10 surrounds the through hole 9.
From the above description, the beneficial effects of the present invention are: the one-sided sounding of the dual-frequency loudspeaker is realized, the work of a tuner is simplified, and the work efficiency is improved; during production, an operator does not need to worry about that one side of the loudspeaker is blocked due to improper operation, so that the poor loss in the production process is greatly reduced, and the manufacturing cost is saved; the tone quality of dual-frenquency loudspeaker has been promoted, has saved the structural space of finished product earphone, does benefit to the miniaturization of finished product earphone.
Further, the adhesive area 10 is a closed annular area.
It can be known from the above description that the bonding region 10 is a continuous, closed annular region, which enables the first sound film 6 and the first magnetic circuit assembly 5 to be bonded more firmly, and more importantly, the circulating air does not flow back through the connecting gap between the first sound film 6 and the first magnetic circuit assembly 5, which is beneficial to avoiding the generation of noise, and effectively ensures the acoustic performance of the one-side sounding dual-frequency horn.
Further, the first magnetic circuit assembly 5 comprises a first magnetic steel 11 fixed on the T-iron 3 and a first washer 12 fixed on the bottom surface of the first magnetic steel 11, the bottom surface of the first washer 12 is provided with an annular elevated portion 13, and the first sound diaphragm 6 is bonded on the bottom surface of the elevated portion 13 through the bonding area 10.
As can be seen from the above description, the elevated portion 13 is disposed to ensure that the first diaphragm 6 can vibrate smoothly, and meanwhile, the first diaphragm 6 is prevented from touching the first magnetic circuit assembly 5 during the vibration process.
Further, the first washer 12 is integrally formed with the elevated portion 13.
Further, the first washer 12 and the elevated portion 13 are of a split structure, and the elevated portion 13 is fixed on the first washer 12.
Further, the material of the elevated portion 13 is copper.
As can be seen from the above description, the elevated portion 13 is arranged in various ways, which is beneficial to enhancing the diversity of the unilateral sounding dual-frequency horn.
Further, a first voice coil 14 is disposed on the top surface of the first diaphragm 6, and the first voice coil 14 is disposed around the first magnetic circuit assembly 5.
Further, a second magnetic circuit assembly 15 is arranged on the top surface of the T-iron 3, the outer edge of the second voice diaphragm 7 is fixed on the second magnetic circuit assembly 15, a second voice coil 16 is arranged on the bottom surface of the second voice diaphragm 7, and the second voice coil 16 is located between the second magnetic circuit assembly and the boss 4.
Further, the second magnetic circuit assembly 15 includes a second magnetic steel 17 fixed on the T-iron 3 and a second washer 18 fixed on the top surface of the second magnetic steel 17.
Further, the number of the second through holes 8 is plural.
Example one
Referring to fig. 1 and fig. 2, a first embodiment of the present invention is: the unilateral sound-emitting dual-frequency loudspeaker comprises a shell 1 and a first through hole 2, wherein T iron 3 is arranged in the shell 1, the T iron 3 is provided with a boss 4, a cavity is arranged in the boss 4, a first magnetic circuit component 5 is arranged in the cavity, a first sound film 6 is arranged below the T iron 3, the outer edge of the first sound film 6 is fixed on the T iron 3, a second sound film 7 is arranged above the T iron 3, the first through hole 2 penetrates through the bottom surface of the first magnetic circuit component 5 and the top surface of the boss 4, a plurality of second through holes 8 are arranged at the bottom of the shell 1, a through hole 9 corresponding to the first through hole 2 is arranged on the first sound film 6, a bonding area 10 bonded with the first magnetic circuit component 5 is arranged on the top surface of the first sound film 6, the bonding area 10 surrounds the through hole 9, and is used for ensuring the acoustic performance of the unilateral dual-frequency loudspeaker, the adhesive area 10 is a closed annular area. In this embodiment, the first diaphragm 6 is a high-frequency sounding diaphragm, and the second diaphragm 7 is a low-frequency sounding diaphragm. It is easy to understand that the number of the second through holes 8 may be one or more.
Specifically, the first magnetic circuit assembly 5 comprises a first magnetic steel 11 fixed on the T-iron 3 and a first washer 12 fixed on the bottom surface of the first magnetic steel 11, the bottom surface of the first washer 12 is provided with an annular elevated portion 13, and the first sound diaphragm 6 is bonded on the bottom surface of the elevated portion 13 through the bonding area 10. Preferably, a distance from an outer wall surface of the elevated portion 13 to a central axis of the first through hole 2 is smaller than a distance from an outer wall surface of the first magnetic circuit component 5 to a central axis of the first through hole 2.
In some embodiments, the first washer 12 and the elevated portion 13 may be integrally formed, for example, integrally milled. However, in this embodiment, the first washer 12 and the elevated portion 13 are of a split structure, the elevated portion 13 is fixed on the first washer 12, optionally, the elevated portion 13 is made of copper, that is, the elevated portion 13 is a copper ring, and the central region of the first diaphragm 6 is bonded to the bottom surface of the copper ring through the bonding region 10.
Further, the diameter of the through hole 9 is larger than or equal to the inner diameter of the raised portion 13, so that noise can be prevented from being generated. In detail, the hole wall of the through hole 9 is located on the periphery of the inner wall surface of the elevated portion 13.
The top surface of the first voice diaphragm 6 is provided with a first voice coil 14, and the first voice coil 14 is arranged around the first magnetic circuit assembly 5.
The top surface of the T-iron 3 is provided with a second magnetic circuit assembly 15, the outer edge of the second voice diaphragm 7 is fixed on the second magnetic circuit assembly 15, the bottom surface of the second voice diaphragm 7 is provided with a second voice coil 16, and the second voice coil 16 is located in a gap between the second magnetic circuit assembly and the boss 4. Specifically, the second magnetic circuit assembly 15 includes a second magnetic steel 17 fixed on the T-iron 3 and a second washer 18 fixed on the top surface of the second magnetic steel 17.
In summary, the single-side sound-emitting dual-frequency loudspeaker provided by the utility model realizes the single-side sound production of the dual-frequency loudspeaker, thereby facilitating the work of the tuner to be simplified and the work efficiency to be improved; during production, an operator does not need to worry about that one side of the loudspeaker is blocked due to improper operation, so that the poor loss in the production process is greatly reduced, and the manufacturing cost is saved; the tone quality of dual-frenquency loudspeaker has been promoted, has saved the structural space of finished product earphone, does benefit to the miniaturization of finished product earphone.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (10)
1. Unilateral sound emitting dual-frequency loudspeaker, including shell and first through-hole, be equipped with T iron in the shell, T iron has the boss, be equipped with the cavity in the boss, be equipped with first magnetic circuit subassembly in the cavity, T iron below is equipped with first sound membrane, T iron top is equipped with the second sound membrane, first through-hole runs through the bottom surface of first magnetic circuit subassembly with the top surface of boss, the bottom of shell is equipped with second through-hole, its characterized in that: the first sound film is provided with a through hole corresponding to the first through hole, the top surface of the first sound film is provided with an adhesive area adhered with the first magnetic circuit component, and the adhesive area surrounds the through hole.
2. The single-sided acoustic dual-frequency horn of claim 1, wherein: the adhesive area is a closed annular area.
3. The single-sided acoustic dual-frequency horn of claim 1, wherein: the first magnetic circuit assembly comprises a first magnetic steel fixed on the T iron and a first washer fixed on the bottom surface of the first magnetic steel, the bottom surface of the first washer is provided with an annular elevated part, and the first sound film is bonded on the bottom surface of the elevated part through the bonding area.
4. The single-sided acoustic dual-frequency horn of claim 3, wherein: the first washer and the elevated part are integrally formed.
5. The single-sided acoustic dual-frequency horn of claim 3, wherein: the first washer and the elevated part are of a split structure, and the elevated part is fixed on the first washer.
6. The single-sided acoustic dual-frequency horn of claim 5, wherein: the elevated portion is made of copper.
7. The single-sided acoustic dual-frequency horn of claim 1, wherein: and a first voice coil is arranged on the top surface of the first voice film and surrounds the first magnetic circuit assembly.
8. The single-sided acoustic dual-frequency horn of claim 1, wherein: the top surface of the T iron is provided with a second magnetic circuit assembly, the outer edge of the second sound film is fixed on the second magnetic circuit assembly, the bottom surface of the second sound film is provided with a second voice coil, and the second voice coil is located between the second magnetic circuit assembly and the boss.
9. The single-sided acoustic dual-frequency horn of claim 8, wherein: the second magnetic circuit component comprises a second magnetic steel fixed on the T iron and a second washer fixed on the top surface of the second magnetic steel.
10. The single-sided acoustic dual-frequency horn of claim 1, wherein: the number of the second through holes is multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020830534.8U CN211959529U (en) | 2020-05-18 | 2020-05-18 | Single-side sound-emitting dual-frequency horn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020830534.8U CN211959529U (en) | 2020-05-18 | 2020-05-18 | Single-side sound-emitting dual-frequency horn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211959529U true CN211959529U (en) | 2020-11-17 |
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ID=73170739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020830534.8U Active CN211959529U (en) | 2020-05-18 | 2020-05-18 | Single-side sound-emitting dual-frequency horn |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211959529U (en) |
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2020
- 2020-05-18 CN CN202020830534.8U patent/CN211959529U/en active Active
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