CN223415013U - Sound producing unit - Google Patents
Sound producing unitInfo
- Publication number
- CN223415013U CN223415013U CN202422764051.3U CN202422764051U CN223415013U CN 223415013 U CN223415013 U CN 223415013U CN 202422764051 U CN202422764051 U CN 202422764051U CN 223415013 U CN223415013 U CN 223415013U
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- China
- Prior art keywords
- magnetic
- voice coils
- sound unit
- unit according
- fixing portion
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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、磁路组件和支撑部件，所述振动组件包括振膜组件和两个音圈，振膜组件连接所述音圈与盆架；所述磁路组件包括轭铁和分别设于所述轭铁上的中心磁结构与边磁结构，所述中心磁结构为并排设置的两组，所述中心磁结构与所述音圈一一对应，所述边磁结构围绕所述中心磁结构设置，所述边磁结构包括相向设置的两组凹型磁结构，两组所述凹型磁结构之间形成两个空隙，所述空隙对应于两个所述音圈之间的缝隙设置；所述支撑部件包括由内向外依次相连的内固定部、形变部及外固定部，所述外固定部连接所述盆架，内固定部连接两个所述音圈，形变部位于所述空隙内。本发声单元结构新颖，BL值大，性能表现佳。
The utility model discloses a sound unit comprising a frame, a vibration assembly, a magnetic circuit assembly, and a support component. The vibration assembly includes a diaphragm assembly and two voice coils, the diaphragm assembly connecting the voice coils to the frame. The magnetic circuit assembly includes a yoke and a central magnetic structure and a side magnetic structure, respectively, disposed on the yoke. The central magnetic structures are arranged in two groups side by side, one corresponding to each voice coil. The side magnetic structures are disposed around the central magnetic structure and include two groups of concave magnetic structures disposed opposite each other. Two gaps are formed between the two groups of concave magnetic structures, corresponding to the gaps between the two voice coils. The support component includes an inner fixing portion, a deformable portion, and an outer fixing portion, connected in sequence from the inside out. The outer fixing portion connects to the frame, the inner fixing portion connects to the two voice coils, and the deformable portion is located within the gaps. This sound unit has a novel structure, a large BL value, and 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, and a central magnetic structure and a side magnetic structure which are respectively arranged on the yoke, wherein the central magnetic structure is formed by two groups which are arranged side by side, the central magnetic structure corresponds to the voice coils one by one, the side magnetic structure is arranged around the central magnetic structure, the side magnetic structure comprises two groups of concave magnetic structures which are arranged in opposite directions, two gaps are formed between the two groups of concave magnetic structures, and the gaps are arranged corresponding to gaps between the two voice coils;
The support component, the support component includes interior fixed part, deformation portion and the external fixation portion that links to each other in proper order from inside to outside, external fixation portion connects the basin frame, interior fixed part connects two the voice coil loudspeaker voice coil, deformation portion is located in the space.
In one embodiment, the magnetic poles of the two sets of the central magnetic structures are oriented opposite to the magnetic poles of the concave magnetic structures adjacent thereto.
In an embodiment, the two voice coils are bonded to each other or the two voice coils are disposed so as not to contact each other.
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 provided with the FPC boards correspondingly, the FPC boards are provided with conducting structures, and the two voice coils are connected in series or in parallel through the FPC boards.
In one embodiment, the conductive structure includes an inner pad, the inner fixing portion has an extension portion protruding into the gap, and the inner pad is disposed on the extension portion.
In an embodiment, the number of the extending portions is two, and the partial area of the deformation portion is located between the two extending portions.
In an embodiment, the concave magnetic structure comprises an outer magnetic steel and an outer washer, wherein the outer magnetic steel is connected with the yoke and the outer washer, and the outer magnetic steel is in a concave shape as a whole.
In one embodiment, the outer magnetic steel 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 sounding unit adopts a double-voice coil framework, so that the driving force can be effectively improved, and the sounding unit can realize large amplitude, large loudness and high sensitivity.
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 schematic structural diagram of a part of the sound generating unit according to the 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;
5. Support member, 51, inner fixing portion, 511, extension portion, 52, deformation portion, 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 3, an embodiment of the utility model is a sound generating unit, which comprises a frame 1, a vibration assembly, a magnetic circuit assembly and a supporting member 5, wherein the vibration assembly comprises a diaphragm assembly 2 and two voice coils 3, the diaphragm assembly 2 connects the voice coils 3 with the frame 1, the magnetic circuit assembly comprises a yoke 41, a central magnetic structure 42 and an edge magnetic structure which are respectively arranged on the yoke 41, the central magnetic structure 42 is in parallel arrangement, the central magnetic structure 42 corresponds to the voice coils 3 one by one, the edge magnetic structure is arranged around the central magnetic structure 42, the edge magnetic structure comprises two groups of concave magnetic structures 43 which are arranged in opposite directions, two gaps 44 are formed between the two groups of concave magnetic structures 43, the gaps 44 are arranged corresponding to gaps between the two voice coils 3, the supporting member 5 comprises two inner fixing parts 51, deformation parts 52 and outer fixing parts 53 which are respectively connected from inside to outside, the outer fixing parts 53 are connected with the frame 1, and the two inner fixing parts 51 are sequentially deformed in the gaps 52.
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 opposite, and the magnetic poles of the central magnetic structure 42 and the adjacent concave magnetic structures 43 are opposite, that is, the magnetic poles of the two sets of the concave magnetic structures 43 are opposite, at this time, the existence of the gap 44 can also improve the self-circulation of the two sets of the concave magnetic structures 43 to form a magnetic circuit, so that the phenomenon of magnetic induction lines towards the magnetic gap is reduced, and in short, the existence of the gap 44 reduces the influence of the self-circulation of the side magnetic structures.
In this embodiment, the two voice coils 3 are bonded to each other, and in other embodiments, it is acceptable that the two voice coils 3 are not disposed in contact with each other.
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, 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, two inner bonding pads 61 are provided on the inner fixing portion 51, two inner bonding pads 61 are in one-to-one correspondence conduction with two outer bonding pads 62, two inner bonding pads 61 in mutual conduction are provided on the other FPC board, no outer bonding pad 62 is provided on the FPC board, the leads of the voice coils 3 are in welded conduction with the inner bonding pads 61, when two voice coils 3 are connected in parallel through the FPC board, one outer bonding pad 62 is provided on the outer fixing portion 53 of each FPC board, two inner bonding pads 61 are provided on the inner fixing portion 51, and two inner bonding pads 61 are in mutual conduction with the leads of the outer bonding pads 62 and the voice coils 3 are in welded conduction with the inner bonding pads 61. In this embodiment, two of the voice coils 3 are connected in parallel.
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.
Preferably, the number of the extending portions 511 is two, and the partial area of the deformation portion 52 is located between the two extending portions 511, so that the center of gravity of the inner fixing portion 51 can be distributed more reasonably by arranging the two extending portions 511 on the inner fixing portion 51.
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.
Example two
Referring to fig. 4, 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 outer magnetic steel 431 has an integral structure, so that component parts of the sounding unit can be reduced, and assembly and manufacture of the sounding unit are facilitated. In addition, in the present embodiment, two voice coils 3 are connected in series.
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422764051.3U CN223415013U (en) | 2024-11-12 | 2024-11-12 | Sound producing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422764051.3U CN223415013U (en) | 2024-11-12 | 2024-11-12 | Sound producing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223415013U true CN223415013U (en) | 2025-10-03 |
Family
ID=97204397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422764051.3U Active CN223415013U (en) | 2024-11-12 | 2024-11-12 | Sound producing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223415013U (en) |
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2024
- 2024-11-12 CN CN202422764051.3U patent/CN223415013U/en active Active
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