CN223415009U - Sound unit - Google Patents
Sound unitInfo
- Publication number
- CN223415009U CN223415009U CN202422759673.7U CN202422759673U CN223415009U CN 223415009 U CN223415009 U CN 223415009U CN 202422759673 U CN202422759673 U CN 202422759673U CN 223415009 U CN223415009 U CN 223415009U
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- magnetic
- central
- structural member
- fixing portion
- generating unit
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Abstract
本实用新型公开了发声单元，包括盆架、振动组件、磁路组件和两个支撑部件，振动组件包括振膜组件和两个音圈；磁路组件包括轭铁和分别设于轭铁上的中央结构件、中心磁结构与边磁结构，中心磁结构为并排设置的两组，边磁结构围绕中心磁结构设置，边磁结构包括相向设置的两组凹型磁结构，两组凹型磁结构之间形成两个空隙，中央结构件位于两组中心磁结构之间，空隙对应于中央结构件设置，中央结构件为导磁结构件和/或永磁结构件；支撑部件包括内固定部、形变部及外固定部，外固定部连接盆架，外固定部连接有对称设置的两个形变部，形变部连接有内固定部，两个内固定部与两个音圈一一对应连接，形变部位于空隙内。本发声单元性能优越。
The utility model discloses a sound unit comprising a frame, a vibration assembly, a magnetic circuit assembly, and two supporting components. The vibration assembly comprises a diaphragm assembly and two voice coils. The magnetic circuit assembly comprises a yoke and a central structural member, a central magnetic structure, and side magnetic structures, each of which is disposed on the yoke. The central magnetic structures are arranged in two groups side by side, and the side magnetic structures are disposed around the central magnetic structure. The side magnetic structures comprise two groups of concave magnetic structures disposed opposite each other, with two gaps formed between the two groups of concave magnetic structures. The central structural member is located between the two groups of central magnetic structures, and the gaps are arranged corresponding to the central structural member. The central structural member is a magnetic conductive structure and/or a permanent magnetic structure. The supporting component comprises an inner fixing portion, a deformable portion, and an outer fixing portion. The outer fixing portion is connected to the frame and is connected to two symmetrically disposed deformable portions. The deformable portions are connected to the inner fixing portion. The two inner fixing portions are connected to the two voice coils in a one-to-one correspondence, and the deformable portions are located within the gaps. This sound unit has excellent performance.
Description
Technical Field
The utility model relates to the technical field of electroacoustic converters, in particular to a sound generating unit.
Background
In order to improve the utilization rate of magnetic steel, stronger driving force is provided, the sensitivity of the sounding unit is improved, the loudness is increased, and a scheme of double voice coils side by side is currently available on the market.
In order to inhibit rolling vibration of the voice coil assembly, the sounding unit is generally additionally provided with a supporting component, however, in the existing sounding unit, the connection positions of the supporting component and the voice coil assembly are usually located at four corners of the voice coil assembly, and an edge magnetic structure area corresponding to the supporting component is required to be subjected to a clearance design, which can definitely lead to incapability of increasing the magnetic steel volume of the sounding unit, and meanwhile, the length of an effective magnetic gap cannot be increased, so that the performance of the sounding unit is difficult to promote.
Disclosure of utility model
The utility model solves the technical problem of providing a high-performance sounding unit.
In order to solve the technical problems, the utility model adopts the technical scheme that the sounding unit comprises:
a basin stand;
the vibration assembly comprises a vibrating diaphragm assembly and two voice coils, and the vibrating diaphragm assembly is connected with the voice coils and the basin frame;
The magnetic circuit assembly comprises a yoke, a central structural member, a central magnetic structure and a side magnetic structure, wherein the central structural member, the central magnetic structure and the side magnetic structure are respectively arranged on the yoke, the central magnetic structures are arranged in parallel, the central magnetic structures and the voice coils are in one-to-one correspondence, the side magnetic structures are arranged around the central magnetic structures, the side magnetic structures comprise two concave magnetic structures which are arranged in opposite directions, two gaps are formed between the two concave magnetic structures, the central structural member is arranged between the two central magnetic structures, the gaps are arranged corresponding to the central structural member, and the central structural member is a magnetic conductive structural member and/or a permanent magnetic structural member;
The support component comprises an inner fixing part, a deformation part and an outer fixing part, wherein the outer fixing part is connected with the basin frame, the outer fixing part is connected with two symmetrically arranged deformation parts, the deformation parts are connected with the inner fixing parts, the two inner fixing parts are connected with the two voice coils in one-to-one correspondence, and the deformation parts are positioned in the gaps.
In one embodiment, the central structural member includes a central magnet steel and a central washer, the central magnet steel connecting the central washer and the yoke.
In an embodiment, the central structural member is a magnetically conductive structural member, and the central structural member and the yoke are integrally formed as a one-piece structure.
In one embodiment, the support member is a secondary membrane.
In one embodiment, the support member is an FPC board.
In an embodiment, the two gaps are respectively and correspondingly provided with the FPC board, the FPC board is provided with a conducting structure, the conducting structure comprises an inner bonding pad arranged on the inner fixing portion, the inner bonding pad is used for conducting the voice coils, and the two voice coils are connected in series or in parallel.
In one embodiment, the inner fixing portion has an extension portion extending into the gap, and the inner bonding pad is disposed on the extension portion.
In an embodiment, the deformation portion includes a first straight section, a U-shaped section and a second straight section that are connected in sequence, one end of the first straight section, which is far away from the U-shaped section, is connected with the external fixing portion, and one end of the second straight section, which is far away from the U-shaped section, extends to the inner side of the side magnetic structure and is connected with one side edge of the internal fixing portion.
In an embodiment, the connection between the second straight section and the inner fixing portion is located at an end of the inner fixing portion away from the outer fixing portion.
In an embodiment, the concave magnetic structure comprises an outer magnetic steel and an outer washer, the outer magnetic steel is connected with the yoke iron and the outer washer, the outer magnetic steel is of a concave shape as a whole and is of an integrated structure, or the outer magnetic steel is formed by splicing a plurality of sub magnetic steels, and the corners of the outer magnetic steel formed by splicing the plurality of sub magnetic steels have no vacant areas.
The utility model has the beneficial effects that the sound generating unit has novel structure, the four corners of the side magnetic structure do not need to be kept away from the air, so that the volume of the side magnetic structure in the sound generating unit is increased, the B value of the sound generating unit is improved, meanwhile, the effective length of the magnetic gap can be improved, namely the L value of the sound generating unit is improved, and the performance of the sound generating unit can be obviously improved after the BL value of the sound generating unit is increased.
The deformation part is positioned in the gap, the deformation part does not need to occupy the peripheral space of the side magnetic structure, and the side magnetic structure can be expanded on the premise of not changing the outline size of the sounding unit, so that the volume of the side magnetic structure is increased to a greater extent, and the performance of the sounding unit is improved.
The presence of the central structural member can further increase the magnetic field/permeability of the sound generating unit, thereby further improving the performance of the sound generating unit.
The support component has two deformation portions and two internal fixation portions, and two internal fixation portions are connected with two voice coils in one-to-one correspondence for the design of deformation portion is more free, and the total length of deformation portion can be designed longer, thereby lets sound production unit can realize bigger amplitude, bigger loudness.
Drawings
In order to more clearly illustrate the embodiments of the present 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, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded view of a sound unit according to a first embodiment of the present utility model;
Fig. 2 is a schematic structural diagram of a part of a sound generating unit according to a first embodiment of the present utility model;
Fig. 3 is a schematic structural diagram II of a part of the sound generating unit according to the first embodiment of the present utility model;
fig. 4 is a cross-sectional view of a sound generating unit according to a first embodiment of the present utility model;
fig. 5 is a cross-sectional view of a sound emitting unit according to a second embodiment of the present utility model.
Reference numerals illustrate:
1. a basin stand;
2. A diaphragm assembly;
3. A voice coil;
41. Yoke iron, 42, central magnetic structure, 43, concave magnetic structure, 431, outer magnetic steel, 432, outer washer, 44, gap, 45, central structural member;
5. Support member, 51, inner fixing portion, 511, extension portion, 52, deformation portion, 521, first straight section, 522, U-shaped section, 523, second straight section, 53, outer fixing portion;
61. Inner bonding pads, 62, outer bonding pads.
Detailed Description
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, in the embodiment of the present utility model, directional indications such as up, down, left, right, front, and rear are referred to, and the directional indication is merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture such as that shown in the drawings, and if the specific posture is changed, the directional indication is correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
In addition, if the meaning of "and/or" is presented throughout this document to include three parallel schemes, taking "and/or" as an example, including a scheme, or a scheme that is satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1
Referring to fig. 1 to 4, in an embodiment of the present utility model, a sounding unit includes a frame 1, a vibration assembly, a magnetic circuit assembly and two support members 5, wherein the vibration assembly includes a diaphragm assembly 2 and two voice coils 3, the diaphragm assembly 2 connects the voice coils 3 and the frame 1, a gap is formed between the two voice coils 3, the magnetic circuit assembly includes a yoke 41, a central structural member 45 respectively disposed on the yoke 41, a central magnetic structure 42 and a side magnetic structure, the central magnetic structure 42 is two groups disposed side by side, the central magnetic structure 42 is in one-to-one correspondence with the voice coils 3, the side magnetic structure is connected with the frame 1, the side magnetic structure is disposed around the central magnetic structure 42, the side magnetic structure includes two sets of concave magnetic structures 43 disposed in opposite directions, two gaps 44 are formed between the two sets of concave magnetic structures 43, the central structural member 45 is disposed corresponding to the central structural member 45, the central structural member 45 is disposed in one-to-one correspondence with the voice coils 3, the two support members 52 are disposed in one-to-one correspondence with the central structural member 45, the two support members 52 are disposed in one-to-one correspondence with the voice coils 3, the two inner magnetic structures 53 are fixedly deformed portions 52 are fixedly connected with the two support members 52, and the two inner and the two support members 52 are fixedly deformed portions 52 are fixedly connected with the two inner and the two support members 52 are disposed.
The central magnetic structure 42 includes a central magnetic steel and a central washer, and the central magnetic steel connects the central washer and the yoke 41. The magnetic poles of the two sets of the central magnetic structures 42 are oriented identically, the magnetic poles of the two sets of the concave magnetic structures 43 are oriented identically, and the magnetic poles of the central magnetic structure 42 are oriented oppositely to the magnetic poles of the concave magnetic structures 43.
In this embodiment, the central structural member 45 includes a central magnetic steel and a central washer, the central magnetic steel connects the central washer and the yoke 41, and the magnetic pole of the central magnetic steel faces opposite to the magnetic pole of the central magnetic structure 42. In other embodiments, it is also possible that the central structural member 45 has only the central magnetic steel and not the central washer, i.e. in this case the central structural member 45 is a permanent magnetic structural member.
In one embodiment, the support member 5 is a secondary membrane. In this embodiment, the support member 5 is an FPC board, specifically, two gaps 44 are respectively and correspondingly provided with the FPC board, the FPC board is provided with a conducting structure, the conducting structure includes an inner bonding pad 61 provided on the inner fixing portion 51, the inner bonding pad 61 is used for conducting the voice coil 3, two voice coils 3 are connected in series or in parallel through the FPC board, when two voice coils 3 are connected in series through the FPC board, two outer bonding pads 62 are provided on the outer fixing portion 53 of one FPC board, each inner bonding pad 61 is respectively provided with an inner bonding pad 61, two inner bonding pads 61 are in one-to-one correspondence with two outer bonding pads 62, the other FPC board is provided with two inner bonding pads 61 in one-to-one correspondence with each other, no outer bonding pad 62 is provided on the FPC board, and when two voice coils 3 are connected in parallel through the FPC board, one outer bonding pad 53 of each FPC board is provided with one inner bonding pad 62, and each outer bonding pad 61 is connected with each inner bonding pad 61.
To fully utilize the space of the void 44, the inner fixing portion 51 has an extension portion 511 protruding into the void 44, and the inner pad 61 is provided on the extension portion 511.
In this embodiment, the deformation portion 52 includes a first straight section 521, a U-shaped section 522, and a second straight section 523 that are sequentially connected, where one end of the first straight section 521, which is far away from the U-shaped section 522, is connected to the outer fixing portion 53, and one end of the second straight section 523, which is far away from the U-shaped section 522, extends to the inner side of the side magnetic structure and is connected to one side edge of the inner fixing portion 51. The deformed portion 52 having such a structure is not only long in overall length, but also can provide a sufficient space for the extension portion 511, so that the gap 44 can be more fully utilized.
Preferably, the connection between the second straight section 523 and the inner fixing portion 51 is located at an end of the inner fixing portion 51 away from the outer fixing portion 53.
The concave magnetic structure 43 comprises an outer magnetic steel 431 and an outer washer 432, the outer washer 432 is connected with the basin frame 1, the outer magnetic steel 431 is connected with the yoke 41 and the outer washer 432, and the outer magnetic steel 431 is integrally concave.
In order to reduce molding scraps of the outer magnetic steel 431 and save the material cost of the magnetic steel, optionally, the outer magnetic steel 431 is formed by splicing a plurality of sub magnetic steels, and corners of the outer magnetic steel 431 formed by splicing a plurality of sub magnetic steels have no vacant areas, in this embodiment, the outer magnetic steel 431 is formed by splicing two L-shaped magnetic steels. In other embodiments, the outer magnetic steel 431 is also acceptable in an integral structure, so that the component parts of the sound generating unit can be reduced, and the assembly and the manufacture of the sound generating unit are convenient.
Example two
Referring to fig. 5, the second embodiment of the present utility model is a parallel solution of the first embodiment, and is different from the first embodiment in that the central structural member 45 is a magnetically conductive structural member, which cannot form a magnetic field itself and has only a magnetic conductive effect, and in this case, it is preferable that the central structural member 45 and the yoke 41 are integrally formed as a one-piece structure, for example, the central structural member 45 is a flange formed by bending a partial area of the yoke 41, or the central structural member 45 is a boss formed on the yoke 41.
The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (10)
1. The sound generating unit is characterized by comprising
A basin stand;
the vibration assembly comprises a vibrating diaphragm assembly and two voice coils, and the vibrating diaphragm assembly is connected with the voice coils and the basin frame;
The magnetic circuit assembly comprises a yoke, a central structural member, a central magnetic structure and a side magnetic structure, wherein the central structural member, the central magnetic structure and the side magnetic structure are respectively arranged on the yoke, the central magnetic structures are arranged in parallel, the central magnetic structures and the voice coils are in one-to-one correspondence, the side magnetic structures are arranged around the central magnetic structures, the side magnetic structures comprise two concave magnetic structures which are arranged in opposite directions, two gaps are formed between the two concave magnetic structures, the central structural member is arranged between the two central magnetic structures, the gaps are arranged corresponding to the central structural member, and the central structural member is a magnetic conductive structural member and/or a permanent magnetic structural member;
The support component comprises an inner fixing part, a deformation part and an outer fixing part, wherein the outer fixing part is connected with the basin frame, the outer fixing part is connected with two symmetrically arranged deformation parts, the deformation parts are connected with the inner fixing parts, the two inner fixing parts are connected with the two voice coils in one-to-one correspondence, and the deformation parts are positioned in the gaps.
2. The sound unit of claim 1, wherein the central structural member comprises a central magnet steel and a central washer, the central magnet steel connecting the central washer and the yoke.
3. The sound generating unit as recited in claim 1, wherein the central structural member is a magnetically conductive structural member, and the central structural member and the yoke are integrally formed as a one-piece structure.
4. The sound generating unit according to claim 1, wherein the support member is a sub-membrane.
5. The sound generating unit according to claim 1, wherein the supporting member is an FPC board.
6. The sound generating unit according to claim 5, wherein the two gaps are respectively provided with the FPC board correspondingly, the FPC board is provided with a conducting structure, the conducting structure comprises an inner bonding pad arranged on the inner fixing part, the inner bonding pad is used for conducting the voice coils, and the two voice coils are connected in series or in parallel.
7. The sound unit of claim 6, wherein the inner fixing portion has an extension portion protruding into the space, and the inner pad is provided on the extension portion.
8. The sound generating unit according to claim 5, wherein the deformation portion comprises a first straight section, a U-shaped section and a second straight section which are sequentially connected, one end of the first straight section, which is far away from the U-shaped section, is connected with the outer fixing portion, and one end of the second straight section, which is far away from the U-shaped section, extends to the inner side of the side magnetic structure and is connected with one side edge of the inner fixing portion.
9. The sound generating unit of claim 8, wherein the junction of the second straight section and the inner fixing portion is located at an end of the inner fixing portion away from the outer fixing portion.
10. The sound generating unit according to claim 1, wherein the concave magnetic structure comprises an outer magnetic steel and an outer washer, the outer magnetic steel connects the yoke and the outer washer, the outer magnetic steel is concave integrally, and the outer magnetic steel is of an integral structure;
Or the outer magnetic steel is formed by splicing a plurality of sub magnetic steels, and the corner of the outer magnetic steel formed by splicing a plurality of sub magnetic steels has no vacant area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422759673.7U CN223415009U (en) | 2024-11-12 | 2024-11-12 | Sound unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422759673.7U CN223415009U (en) | 2024-11-12 | 2024-11-12 | Sound unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223415009U true CN223415009U (en) | 2025-10-03 |
Family
ID=97207182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422759673.7U Active CN223415009U (en) | 2024-11-12 | 2024-11-12 | Sound unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223415009U (en) |
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2024
- 2024-11-12 CN CN202422759673.7U patent/CN223415009U/en active Active
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