CN220776065U - Magnetic circuit assembly and miniature loudspeaker - Google Patents
Magnetic circuit assembly and miniature loudspeaker Download PDFInfo
- Publication number
- CN220776065U CN220776065U CN202321475137.3U CN202321475137U CN220776065U CN 220776065 U CN220776065 U CN 220776065U CN 202321475137 U CN202321475137 U CN 202321475137U CN 220776065 U CN220776065 U CN 220776065U
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- CN
- China
- Prior art keywords
- yoke
- positioning protrusion
- circuit assembly
- magnetic steel
- magnetic circuit
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Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 58
- 239000010959 steel Substances 0.000 claims abstract description 58
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims description 7
- 229910000679 solder Inorganic materials 0.000 claims description 7
- 238000000926 separation method Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a magnetic circuit assembly and a miniature loudspeaker, wherein the miniature loudspeaker comprises a magnetic circuit assembly, the magnetic circuit assembly comprises a yoke iron and side magnetic steel, and a positioning protrusion is arranged on the yoke iron; the edge magnetic steel is arranged on the yoke and connected with the positioning protrusions, and the positioning protrusions are arranged on the yoke to position and mount the edge magnetic steel, so that the reliability of connection between the edge magnetic steel and the yoke is effectively improved, and the risk of noise caused by separation or position deviation of the magnetic steel and the yoke is reduced.
Description
Technical Field
The utility model relates to the technical field of acoustic devices, in particular to a magnetic circuit assembly and a micro-speaker.
Background
The micro-speaker is widely applied to portable electronic devices such as mobile phones, notebook computers, hearing aids and the like. With the rapid development of these portable electronic devices, the quality requirements of the micro electroacoustic devices applied to them are also higher and higher, and the requirements of reliability are also higher and higher. The magnetic circuit assembly of the existing miniature loudspeaker generally comprises a yoke, and a central magnetic steel and a side magnetic steel which are arranged on the yoke, but the volume of the side magnetic steel is smaller, the combined area of the side magnetic steel and the yoke is smaller, the structural reliability is poor, and in the practical use process, the side magnetic steel is easy to separate from the yoke or offset, so that noise is generated, and the user experience is affected.
Disclosure of Invention
The utility model mainly aims to provide a magnetic circuit assembly with good structural reliability and a miniature loudspeaker.
In order to solve the technical problems, the utility model adopts the following technical scheme: a magnetic circuit assembly includes
The yoke is provided with a positioning protrusion;
the side magnetic steel is arranged on the yoke iron and connected with the positioning protrusion.
In an embodiment, the number of the positioning protrusions is a plurality.
In an embodiment, the side magnetic steel is provided with a positioning hole matched with the positioning protrusion.
In one embodiment, the side magnetic steel is welded to the yoke and the positioning protrusion.
In an embodiment, the positioning protrusion is provided with a first accommodating groove, and the first accommodating groove is used for accommodating solder.
In one embodiment, the side magnetic steel is adhesively connected with the yoke and the positioning protrusion.
In an embodiment, the positioning protrusion is provided with a second accommodating groove, and the second accommodating groove is used for accommodating glue.
In an embodiment, the cross-sectional shape of the positioning protrusion is polygonal, circular or elliptical.
In one embodiment, the positioning protrusion and the yoke are integrally formed as a one-piece structure.
In order to solve the technical problem, the utility model also provides a micro-speaker, which comprises the magnetic circuit assembly.
The utility model has the beneficial effects that: the magnetic circuit assembly and the micro-speaker provided by the utility model have the characteristics of good reliability, and the positioning bulge is arranged on the yoke for positioning and mounting the side magnetic steel, so that the reliability of the connection between the side magnetic steel and the yoke is effectively improved, and the risk of noise caused by the separation or position deviation of the magnetic steel and the yoke is reduced.
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 micro-speaker according to a first embodiment of the present utility model;
fig. 2 is a detailed view at a in fig. 1.
Description of the reference numerals:
1. a basin stand; 2. a vibration assembly; 21. a vibrating diaphragm; 22. a voice coil; 3. a magnetic circuit assembly; 31. a yoke; 311. positioning the bulge; 32. a center magnetic steel; 33. edge magnetic steel; 331. and positioning holes.
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 changed accordingly.
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 this application, unless specifically stated 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; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
Referring to fig. 1 and 2, a magnetic circuit assembly includes
A yoke 31, wherein a positioning protrusion 311 is arranged on the yoke 31;
the edge magnetic steel 33, the edge magnetic steel 33 is installed on the yoke 31 and connected with the positioning protrusion 311.
From the above description, the beneficial effects of the utility model are as follows: the positioning protrusion 311 is arranged on the yoke 31 to position and mount the edge magnetic steel 33, so that the reliability of connection between the edge magnetic steel 33 and the yoke 31 is effectively improved, and the risk of noise caused by separation or position deviation of the magnetic steel and the yoke 31 is reduced.
Further, the number of the positioning protrusions 311 is plural.
As is apparent from the above description, the provision of the plurality of positioning projections 311 enables the side magnetic steel 33 and the yoke 31 to be more firmly positioned and connected.
Further, the side magnetic steel 33 is provided with a positioning hole 331 adapted to the positioning protrusion 311.
As can be seen from the above description, the positioning hole 331 is adapted to the positioning protrusion 311, so that the positioning of the side magnetic steel 33 and the yoke 31 can be more accurately achieved.
Further, the side magnetic steel 33 is welded to the yoke 31 and the positioning protrusion 311.
As is apparent from the above description, the side magnetic steel 33 is connected to the yoke 31 and the positioning protrusion 311 by welding, so that a firm mechanical connection can be achieved.
Further, the positioning protrusion 311 is provided with a first accommodating groove, and the first accommodating groove is used for accommodating solder.
As is clear from the above description, the first receiving groove can receive the flowing solder, so as to prevent the solder from flowing to other parts of the magnetic circuit assembly 3.
Further, the side magnetic steel 33 is adhesively connected to the yoke 31 and the positioning protrusion 311.
As is apparent from the above description, the side magnetic steel 33 is coupled with the yoke 31 and the positioning protrusion 311 by means of gluing, so that a firm mechanical coupling can be achieved
Further, the positioning protrusion 311 is provided with a second receiving groove, and the second receiving groove is used for receiving glue.
As can be seen from the above description, the second receiving groove can receive the flowing glue, so as to prevent the glue from flowing to other parts of the magnetic circuit assembly 3.
Further, the cross-sectional shape of the positioning protrusion 311 is polygonal, circular or elliptical.
As can be seen from the above description, the shape of the positioning protrusion 311 can be set according to practical application requirements.
Further, the positioning protrusion 311 and the yoke 31 are integrally formed.
As is apparent from the above description, the positioning protrusion 311 is integrally formed with the yoke 31, so that the positioning protrusion 311 is more firm, and the detachment of the positioning protrusion 311 from the yoke 31 is prevented.
In order to solve the above technical problems, the present utility model further provides a micro speaker, which includes the magnetic circuit assembly 3.
Example 1
Referring to fig. 1 and 2, a first embodiment of the utility model is as follows: the miniature loudspeaker comprises a basin frame 1, and a vibration component 2 and a magnetic circuit component 3 which are respectively arranged on the basin frame 1, wherein the vibration component 2 comprises a vibrating diaphragm 21 and a voice coil 22 which are connected, and the vibrating diaphragm 21 is connected with the basin frame 1; the magnetic circuit assembly 3 comprises a yoke 31, a central magnetic steel 32 and a side magnetic steel 33, wherein the yoke 31 is arranged on the basin frame 1, the central magnetic steel 32 is arranged in the center of the yoke 31, the side magnetic steel 33 is arranged on the yoke 31 and is positioned on the outer side of the central magnetic steel 32, a magnetic circuit gap is formed between the side magnetic steel 33 and the central magnetic steel 32, and the voice coil 22 is positioned in the magnetic circuit gap; the yoke 31 is provided with the positioning protrusion 311, the edge magnetic steel 33 is mounted on the yoke 31 and connected with the positioning protrusion 311, and it is easy to understand that the reliability of connection between the edge magnetic steel 33 and the yoke 31 is effectively improved by positioning and mounting the edge magnetic steel 33 by arranging the positioning protrusion 311 on the yoke 31, and the risk of noise caused by separation or position deviation of the magnetic steel and the yoke 31 is reduced.
Preferably, the number of the positioning protrusions 311 is plural, and the number of the positioning protrusions 311 is larger than the number of the side magnetic steels 33, so that the side magnetic steels 33 and the yoke 31 can be more firmly positioned and connected; specifically, the edge magnetic steel 33 is provided with a positioning hole 331 adapted to the positioning protrusion 311, and the positioning hole 331 is adapted to the positioning protrusion 311, so that the positioning of the edge magnetic steel 33 and the yoke 31 can be more accurately realized.
Alternatively, the side magnetic steel 33 is welded to the yoke 31 and the positioning protrusion 311, and the side magnetic steel 33 is connected to the yoke 31 and the positioning protrusion 311 by welding, so that a firm mechanical connection can be achieved, and further, a first accommodating groove (not shown) is formed in the positioning protrusion 311, and the first accommodating groove is used for accommodating solder, so that the solder can be prevented from flowing to other parts of the magnetic circuit assembly 3; in addition, the side magnetic steel 33 can be adhesively connected with the yoke 31 and the positioning protrusion 311, so that a firm mechanical connection can be realized as well; further, the positioning protrusion 311 is provided with a second receiving groove (not shown), and the second receiving groove is used for receiving glue, so that glue can be prevented from flowing to other parts of the magnetic circuit assembly 3; the connection mode between the side magnetic steel 33 and the yoke 31 may be specifically selected according to the actual application requirement, which is not described herein in detail. Further alternatively, the cross-sectional shape of the positioning protrusion 311 may be polygonal, circular or elliptical, and the shape of the positioning protrusion 311 may be set according to practical application requirements.
In this embodiment, the positioning protrusion 311 and the yoke 31 are integrally formed, so that the positioning protrusion 311 is more firm, and the positioning protrusion 311 is prevented from being separated from the yoke 31; in detail, each positioning protrusion 311 corresponds to one of the positioning holes 331 on the connecting side magnetic steel 33 one by one.
In summary, the magnetic circuit assembly and the micro-speaker provided by the utility model have the characteristic of good reliability, and the positioning protrusions are arranged on the yoke to position and mount the edge magnetic steel, so that the reliability of connection between the edge magnetic steel and the yoke is effectively improved, and the risk of noise caused by separation or position deviation of the magnetic steel and the yoke is reduced.
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 (9)
1. A magnetic circuit assembly, comprising
The yoke is provided with a positioning protrusion;
the side magnetic steel is arranged on the yoke iron and connected with the positioning protrusion;
and the side magnetic steel is provided with a positioning hole matched with the positioning protrusion.
2. The magnetic circuit assembly of claim 1, wherein the number of positioning projections is a plurality.
3. The magnetic circuit assembly of claim 1, wherein the side magnetic steel is welded to the yoke and the positioning protrusion.
4. A magnetic circuit assembly according to claim 3, wherein the positioning protrusion is provided with a first receiving groove for receiving solder.
5. The magnetic circuit assembly of claim 1, wherein the side magnet steel is adhesively attached to the yoke and the positioning protrusion.
6. The magnetic circuit assembly of claim 5, wherein the positioning protrusion is provided with a second receiving groove for receiving glue.
7. The magnetic circuit assembly of claim 1, wherein the positioning protrusion has a polygonal, circular or oval cross-sectional shape.
8. The magnetic circuit assembly of claim 1, wherein the positioning protrusion is an integrally formed one-piece structure with the yoke.
9. A micro-speaker comprising the magnetic circuit assembly of any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321475137.3U CN220776065U (en) | 2023-06-09 | 2023-06-09 | Magnetic circuit assembly and miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321475137.3U CN220776065U (en) | 2023-06-09 | 2023-06-09 | Magnetic circuit assembly and miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220776065U true CN220776065U (en) | 2024-04-12 |
Family
ID=90598738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321475137.3U Active CN220776065U (en) | 2023-06-09 | 2023-06-09 | Magnetic circuit assembly and miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220776065U (en) |
-
2023
- 2023-06-09 CN CN202321475137.3U patent/CN220776065U/en active Active
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| GR01 | Patent grant |