CN219248047U - Multi-drive loudspeaker - Google Patents
Multi-drive loudspeaker Download PDFInfo
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- CN219248047U CN219248047U CN202223514734.0U CN202223514734U CN219248047U CN 219248047 U CN219248047 U CN 219248047U CN 202223514734 U CN202223514734 U CN 202223514734U CN 219248047 U CN219248047 U CN 219248047U
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Abstract
The utility model provides a multi-drive loudspeaker, which belongs to the technical field of loudspeakers, wherein a magnetic circuit system is arranged between a first vibration sounding structure and a second vibration sounding structure; the first vibration sounding structure and the second vibration sounding structure are symmetrically arranged relative to the magnetic circuit system; the magnetic circuit system comprises a central pole piece and central magnetic steel, left magnetic steel, right magnetic steel, front magnetic steel and rear magnetic steel which are arranged on the central pole piece; the left magnetic steel and the right magnetic steel are symmetrically arranged about the central magnetic steel; the front magnetic steel and the rear magnetic steel are symmetrically arranged about the central magnetic steel; the first vibration sounding structure and the second vibration sounding structure share one magnetic circuit system, so that the size of the loudspeaker is reduced, and the light weight and the miniaturization of the loudspeaker are realized.
Description
Technical Field
The utility model relates to the technical field of speakers, in particular to a multi-drive speaker.
Background
Speakers are widely used in acoustic devices such as televisions, notebook computers, tablet computers, cell phones, and the like. In the last decade, the electronic products with speakers gradually develop towards the direction of light weight and thin weight or miniaturization, and in the process of light weight and miniaturization, the requirements on the acoustic performance of the speakers are increasingly higher. With the development of new energy automobiles, in order to increase the range of the new energy automobiles, speakers equipped with the new energy automobiles need to be thinned and miniaturized under the condition that the acoustic performance is excellent enough, and the weight of the whole automobile is reduced.
The traditional loudspeaker product for multimedia is difficult to thin structurally because of the paper basin, the fixed core support piece, the ferrite magnet and the basin frame structure; the micro-speaker product can be thinned, the area of the micro-speaker structure is simply made large, the effect of different performances of two sides is easily caused, but the area is smaller than the electromagnetic driving force, and the acoustic performance of the speaker cannot meet the industry requirement.
For example, publication No.: CN 212324356U, patent name: a double-drive double-sided sounding loudspeaker is disclosed, wherein a first sounding body and a second sounding body are symmetrically arranged by taking a common magnetic conduction plate as a symmetry plane. The first magnetic circuit system and the second magnetic circuit system are symmetrically arranged relative to the common magnetic conduction plate, the first vibration system is arranged on the outer side of the first magnetic circuit system, and the second vibration system is arranged on the outer side of the second magnetic circuit system. However, the scheme is designed with 10 magnetic steels, and the symmetrical magnetic steels are opposite in magnetizing direction, so that the assembly is difficult and the process is complex.
Therefore, in order to achieve the light weight and miniaturization of the speaker, a multi-drive speaker is highly demanded.
Disclosure of Invention
In view of this, the present utility model provides a new magnetic circuit system, which can ensure the acoustic performance of both sides of the speaker, and can satisfy the requirements of light and thin, small size and easy assembly of the speaker.
The technical scheme of the utility model is realized as follows: a multi-drive loudspeaker comprises a first vibration sound generating structure, a second vibration sound generating structure and a magnetic circuit system, wherein,
the magnetic circuit system is arranged between the first vibration sounding structure and the second vibration sounding structure;
the first vibration sounding structure and the second vibration sounding structure are symmetrically arranged relative to the magnetic circuit system;
the magnetic circuit system comprises a central pole piece, and central magnetic steel, left magnetic steel, right magnetic steel, front magnetic steel and rear magnetic steel which are arranged on the central pole piece;
the left magnetic steel and the right magnetic steel are symmetrically arranged about the central magnetic steel; the front magnetic steel and the rear magnetic steel are symmetrically arranged about the central magnetic steel.
On the basis of the technical scheme, preferably, the central pole piece comprises a central hole, a left notch, a right notch, a front notch and a rear notch; the left notch, the right notch, the front notch and the rear notch are respectively arranged on four edges of the central pole piece; the center magnet steel sets up in the centre bore, and left magnet steel sets up in left breach, and right magnet steel sets up in right breach, and preceding magnet steel sets up in preceding breach, and back magnet steel sets up in back breach.
On the basis of the technical scheme, preferably, the magnetic circuit system further comprises an upper pole piece and a lower pole piece, wherein the upper pole piece is clung to one end of the central magnetic steel, and the lower pole piece is clung to the other end of the central magnetic steel.
On the basis of the technical scheme, preferably, the magnetic circuit system further comprises an upper pole piece and a lower pole piece, wherein the upper pole piece is arranged around the upper pole piece, and the lower pole piece is arranged around the lower pole piece.
On the basis of the technical scheme, preferably, the upper pole piece is connected with one ends of the left magnetic steel, the right magnetic steel, the front magnetic steel and the rear magnetic steel; the lower pole piece is connected with the other ends of the left magnetic steel, the right magnetic steel, the front magnetic steel and the rear magnetic steel.
On the basis of the above technical scheme, preferably, the first vibration sounding structure comprises a first voice coil, and the first voice coil is located at one end of the upper pole piece of the central magnetic steel.
On the basis of the above technical scheme, preferably, the second vibration sounding structure comprises a second voice coil, and the second voice coil is located at one end of the lower pole piece where the central magnetic steel is arranged.
On the basis of the technical scheme, preferably, the centers of the first voice coil, the second voice coil and the central magnetic steel are on the same straight line, and the straight line is perpendicular to the plane where the central pole piece is located.
On the basis of the above technical scheme, preferably, the first vibration sounding structure further comprises a first diaphragm, a first dome, a first upper support plate, a first lower support plate, a first FPC and a first auxiliary membrane, wherein the first dome is fixedly arranged on the first diaphragm, the first diaphragm is fixedly arranged on the first upper support plate, the upper pole piece is arranged between the first upper support plate and the first lower support plate, the first voice coil is fixedly arranged on the first lower support plate, and the first FPC and the first auxiliary membrane are arranged between the first lower support plate and the upper pole piece.
On the basis of the above technical scheme, preferably, the second vibration sounding structure further comprises a second diaphragm, a second dome, a second upper support plate, a second lower support plate, a second FPC and a second auxiliary membrane, wherein the second dome is fixedly arranged on the second diaphragm, the second diaphragm is fixedly arranged on the second upper support plate, the lower pole piece is arranged between the second upper support plate and the second lower support plate, the second voice coil is fixedly arranged on the second lower support plate, and the second FPC and the second auxiliary membrane are arranged between the second lower support plate and the lower pole piece.
Compared with the prior art, the multi-drive loudspeaker has the following beneficial effects:
(1) The first vibration sounding structure and the second vibration sounding structure share one magnetic circuit system, so that the size of the loudspeaker is reduced, and the lightness, thinness and miniaturization of the loudspeaker are realized;
(2) The first vibration sounding structure and the second vibration sounding structure are symmetrically arranged about the magnetic circuit system, the effective amplitude area of the first vibration sounding structure and the second vibration sounding structure is increased, the purpose of improving frequency response is achieved, meanwhile, the performance and the amplitude of the first diaphragm and the second diaphragm are consistent, the distortion of a loudspeaker is reduced, meanwhile, the vibration of the whole machine is eliminated, and the acoustic performance of the first vibration sounding structure 1 and the second vibration sounding structure is guaranteed;
(3) The installation of the central magnetic steel, the left magnetic steel, the right magnetic steel, the front magnetic steel and the rear magnetic steel is only needed to be put into the corresponding central hole, the left notch, the right notch, the front notch and the rear notch, the assembly difficulty is reduced, the magnetic steel and the corresponding notch are matched with each other, and the installation precision of the magnetic steel on the central pole piece is obviously improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a perspective view of a multi-drive speaker of the present utility model;
FIG. 2 is a schematic diagram of the magnetic circuit system of the present utility model;
fig. 3 is a schematic structural diagram of a first vibration sound-producing structure, a second vibration sound-producing structure and a magnetic circuit system according to the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will clearly and fully describe the technical aspects of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.
As shown in fig. 1 to 3, a multi-drive speaker includes a first vibration sound emitting structure 1, a second vibration sound emitting structure 2, and a magnetic circuit system 3.
Wherein, as shown in fig. 1 and 3, the magnetic circuit system 3 is arranged between the first vibration sound producing structure 1 and the second vibration sound producing structure 2; the first vibration sounding structure 1 and the second vibration sounding structure 2 are symmetrically arranged about the magnetic circuit system 3; the first vibration sounding structure 1 and the second vibration sounding structure 2 share the magnetic circuit system 3, so that the size of the loudspeaker is reduced, and the lightness, thinness and miniaturization of the loudspeaker are realized; the first vibration sound production structure 1 and the second vibration sound production structure 2 are symmetrically arranged about the magnetic circuit system 3, the effective amplitude area of the first vibration sound production structure 1 and the second vibration sound production structure 2 is increased, the purpose of improving frequency response is achieved, meanwhile, the performance and the amplitude of the first diaphragm 12 and the second diaphragm 22 are consistent, the distortion of a loudspeaker is reduced, meanwhile, the vibration of the whole machine is eliminated, and the acoustic performance of the first vibration sound production structure 1 and the second vibration sound production structure 2 is guaranteed.
The magnetic circuit 3, as shown in fig. 2 and 3, includes a central pole piece 31, and a central magnetic steel 32, a left magnetic steel 33, a right magnetic steel 34, a front magnetic steel 35, a rear magnetic steel 36, an upper pole piece 37, a lower pole piece 38, an upper pole piece 39 and a lower pole piece 30 which are arranged on the central pole piece 31.
The left magnetic steel 33 and the right magnetic steel 34 are symmetrically arranged about the center magnetic steel 32; the front magnetic steel 35 and the rear magnetic steel 36 are symmetrically arranged about the central magnetic steel 32, only five magnetic steels are needed, the assembly is simple, and the production efficiency is high.
The position and stability of the magnetic steel have great significance on the acoustic performance of the first vibration sounding structure 1 and the second vibration sounding structure 2, and in order to fix the central magnetic steel 32, the left magnetic steel 33, the right magnetic steel 34, the front magnetic steel 35 and the rear magnetic steel 36, as a preferred embodiment, the central pole piece 31 comprises a central hole 311, a left notch 312, a right notch 313, a front notch 314 and a rear notch 315; the left notch 312, the right notch 313, the front notch 314 and the rear notch 315 are respectively arranged on four sides of the central pole piece 31; the center magnet steel 32 sets up in the centre bore 311, the left magnet steel 33 sets up in left breach 312, the right magnet steel 34 sets up in right breach 313, preceding magnet steel 35 sets up in preceding breach 314, back magnet steel 36 sets up in back breach 315, at this moment center magnet steel 32, left magnet steel 33, right magnet steel 34, preceding magnet steel 35, back magnet steel 36 installation only need put into corresponding centre bore 311, left breach 312, right breach 313, preceding breach 314 and back breach 315 can, the assembly degree of difficulty reduces, secondly magnet steel and the breach of correspondence mutually support, the installation accuracy of magnet steel on center pole piece 31 obviously improves.
In order to fix the high center magnetic steel 32 and improve the magnetism of the center magnetic steel 32, as a preferred embodiment, the upper pole piece 37 is closely attached to one end of the center magnetic steel 32, the lower pole piece 38 is closely attached to the other end of the center magnetic steel 32, and the upper pole piece 37 and the lower pole piece 38 fix the center magnetic steel 32 and simultaneously transfer the magnetism of the center magnetic steel 32.
To avoid the location of the image magnetic induction lines of upper pole piece 37, upper pole piece 39, lower pole piece 38, and lower pole piece 30, as a preferred embodiment, upper pole piece 39 is disposed around upper pole piece 37 and lower pole piece 30 is disposed around lower pole piece 38.
As a preferred embodiment, the upper pole piece 39 is connected to one end of the left magnetic steel 33, the right magnetic steel 34, the front magnetic steel 35 and the rear magnetic steel 36; the lower pole piece 30 is connected with the other ends of the left magnetic steel 33, the right magnetic steel 34, the front magnetic steel 35 and the rear magnetic steel 36.
The first vibration sounding structure 1, as shown in fig. 3, includes a first voice coil 11, a first diaphragm 12, a first dome 13, a first upper support plate 14, a first lower support plate 15, a first FPC16, and a first auxiliary diaphragm 17, where the first voice coil 11 is located at one end of the central magnetic steel 32 where the upper pole piece 37 is disposed.
As a preferred embodiment, the first dome 13 is fixedly disposed on the first diaphragm 12, the first diaphragm 12 is fixedly disposed on the first upper support plate 14, the upper edge pole piece 39 is disposed between the first upper support plate 14 and the first lower support plate 15, the first voice coil 11 is fixedly disposed on the first lower support plate 15, and the first FPC16 and the first auxiliary film 17 are disposed between the first lower support plate 15 and the upper edge pole piece 37.
The second vibration/sound generating structure 2, as shown in fig. 3, includes a second voice coil 21, a second diaphragm 22, a second dome 23, a second upper support plate 24, a second lower support plate 25, a second FPC26, and a second auxiliary diaphragm 27, where the second voice coil is located at one end of the central magnetic steel 32 where the lower pole piece 38 is disposed.
As a preferred embodiment, the second dome 23 is fixedly disposed on the second diaphragm 22, the second diaphragm 22 is fixedly disposed on the second upper support plate 24, the lower pole piece 30 is disposed between the second upper support plate 24 and the second lower support plate 25, the second voice coil 21 is fixedly disposed on the second lower support plate 25, and the second FPC26 and the second auxiliary film 27 are disposed between the second lower support plate 25 and the lower pole piece 38.
As a preferred embodiment, the centers of the first voice coil 11, the second voice coil 21, and the center magnetic steel 32 are on a straight line, and the straight line is perpendicular to the plane in which the center pole piece 31 is located.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. A multi-drive loudspeaker comprises a first vibration sounding structure (1), a second vibration sounding structure (2) and a magnetic circuit system (3), wherein,
the magnetic circuit system (3) is arranged between the first vibration sounding structure (1) and the second vibration sounding structure (2);
the first vibration sounding structure (1) and the second vibration sounding structure (2) are symmetrically arranged relative to the magnetic circuit system (3);
the method is characterized in that: the magnetic circuit system (3) comprises a central pole piece (31) and central magnetic steel (32), left magnetic steel (33), right magnetic steel (34), front magnetic steel (35) and rear magnetic steel (36) which are arranged on the central pole piece (31);
the left magnetic steel (33) and the right magnetic steel (34) are symmetrically arranged about the central magnetic steel (32); the front magnetic steel (35) and the rear magnetic steel (36) are symmetrically arranged relative to the central magnetic steel (32).
2. A multi-drive speaker as defined in claim 1, wherein: the central pole piece (31) comprises a central hole (311), a left notch (312), a right notch (313), a front notch (314) and a rear notch (315); the left notch (312), the right notch (313), the front notch (314) and the rear notch (315) are respectively arranged on four edges of the central pole piece (31); the center magnet steel (32) sets up in centre bore (311), and left magnet steel (33) set up in left breach (312), and right magnet steel (34) set up in right breach (313), and preceding magnet steel (35) set up in preceding breach (314), and back magnet steel (36) set up in back breach (315).
3. A multi-drive speaker as defined in claim 1, wherein: the magnetic circuit system (3) further comprises an upper pole piece (37) and a lower pole piece (38), wherein the upper pole piece (37) is clung to one end of the central magnetic steel (32), and the lower pole piece (38) is clung to the other end of the central magnetic steel (32).
4. A multi-drive speaker as defined in claim 3, wherein: the magnetic circuit system (3) further comprises an upper pole piece (39) and a lower pole piece (30), wherein the upper pole piece (39) is arranged around the upper pole piece (37), and the lower pole piece (30) is arranged around the lower pole piece (38).
5. A multi-drive speaker as defined in claim 4, wherein: the upper pole piece (39) is connected with one end of the left magnetic steel (33), the right magnetic steel (34), the front magnetic steel (35) and the rear magnetic steel (36); the lower pole piece (30) is connected with the other ends of the left magnetic steel (33), the right magnetic steel (34), the front magnetic steel (35) and the rear magnetic steel (36).
6. A multi-drive speaker as defined in claim 4, wherein: the first vibration sounding structure (1) comprises a first voice coil (11), and the first voice coil (11) is located at one end of the central magnetic steel (32) where the upper pole piece (37) is arranged.
7. A multi-drive speaker as defined in claim 6, wherein: the second vibration sounding structure (2) comprises a second voice coil (21), and the second voice coil is positioned at one end of the central magnetic steel (32) where the lower pole piece (38) is arranged.
8. A multi-drive speaker as defined in claim 7, wherein: the centers of the first voice coil (11), the second voice coil (21) and the central magnetic steel (32) are on the same straight line, and the straight line is perpendicular to the plane of the central pole piece (31).
9. A multi-drive speaker as defined in claim 6, wherein: the first vibration sounding structure (1) further comprises a first membrane (12), a first ball top (13), a first upper supporting plate (14), a first lower supporting plate (15), a first FPC (16) and a first auxiliary membrane (17), wherein the first ball top (13) is fixedly arranged on the first membrane (12), the first membrane (12) is fixedly arranged on the first upper supporting plate (14), an upper pole piece (39) is arranged between the first upper supporting plate (14) and the first lower supporting plate (15), the first voice coil (11) is fixedly arranged on the first lower supporting plate (15), and the first FPC (16) and the first auxiliary membrane (17) are arranged between the first lower supporting plate (15) and the upper pole piece (37).
10. A multi-drive speaker as defined in claim 7, wherein: the second vibration sounding structure (2) further comprises a second diaphragm (22), a second ball top (23), a second upper supporting plate (24), a second lower supporting plate (25), a second FPC (26) and a second auxiliary film (27), wherein the second ball top (23) is fixedly arranged on the second diaphragm (22), the second diaphragm (22) is fixedly arranged on the second upper supporting plate (24), a lower edge pole piece (30) is arranged between the second upper supporting plate (24) and the second lower supporting plate (25), a second voice coil (21) is fixedly arranged on the second lower supporting plate (25), and the second FPC (26) and the second auxiliary film (27) are arranged between the second lower supporting plate (25) and the lower pole piece (38).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223514734.0U CN219248047U (en) | 2022-12-28 | 2022-12-28 | Multi-drive loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223514734.0U CN219248047U (en) | 2022-12-28 | 2022-12-28 | Multi-drive loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219248047U true CN219248047U (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223514734.0U Active CN219248047U (en) | 2022-12-28 | 2022-12-28 | Multi-drive loudspeaker |
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| Country | Link |
|---|---|
| CN (1) | CN219248047U (en) |
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- 2022-12-28 CN CN202223514734.0U patent/CN219248047U/en active Active
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