CN219145592U - Miniature loudspeaker - Google Patents
Miniature loudspeaker Download PDFInfo
- Publication number
- CN219145592U CN219145592U CN202222959755.7U CN202222959755U CN219145592U CN 219145592 U CN219145592 U CN 219145592U CN 202222959755 U CN202222959755 U CN 202222959755U CN 219145592 U CN219145592 U CN 219145592U
- Authority
- CN
- China
- Prior art keywords
- opening
- yoke
- connecting piece
- magnetic steel
- magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a miniature loudspeaker, which comprises a basin frame, a magnetic circuit system, a first opening, a second opening and a connecting piece, wherein a vibration system is arranged on the basin frame; the magnetic circuit system is arranged on the basin frame and comprises magnetic steel and a yoke which are connected; the first opening is positioned on the magnetic steel; the second opening is positioned on the yoke, the second opening is arranged corresponding to the first opening, and the second opening is communicated with the first opening; and one part of the connecting piece is positioned in the first opening, the other part of the connecting piece is positioned in the second opening, and the magnetic steel is connected with the yoke through the connecting piece. Through set up first trompil and set up on the magnet steel with the second trompil that first trompil corresponds on the yoke, make the both ends of connecting piece be located first trompil and second trompil respectively, and then make the magnet steel link to each other with the yoke through the connecting piece to improve the connection steadiness of yoke and magnet steel.
Description
Technical Field
The utility model relates to the technical field of electroacoustic conversion, in particular to a miniature loudspeaker.
Background
Existing micro-speakers generally include: magnetic circuit, vibration system and accept fixed magnetic circuit and vibration system's basin frame, wherein, magnetic circuit includes washer, magnet steel and yoke. When the magnetic circuit assembly is designed and produced, the washer, the magnetic steel and the yoke are adhered together by using the glue, and the quantity is not too great when the glue is used, otherwise, the magnetic conduction effect of the washer and the yoke can be reduced, the anti-falling capacity of the loudspeaker is not strong, the magnetic steel is always dropped when the glue is coated, in addition, the magnetic steel can be positioned only by means of tooling or concentricity detection when the magnetic circuit assembly is assembled, and the assembly efficiency of the magnetic circuit assembly is not facilitated.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: a micro speaker with a more stable structure is provided.
In order to solve the technical problems, the utility model adopts the following technical scheme: a micro-speaker, comprising:
the basin stand is provided with a vibration system;
the magnetic circuit system is arranged on the basin frame and comprises magnetic steel and a yoke which are connected;
the first opening is positioned on the magnetic steel;
the second opening is positioned on the yoke, and is correspondingly arranged with the first opening and communicated with the first opening;
the connecting piece, a part of region of connecting piece is located in the first trompil, another part of region of connecting piece is located in the second trompil, the magnet steel passes through the connecting piece with the yoke is connected.
Further, the magnetic steel comprises a central magnetic steel and four side magnetic steels, the four side magnetic steels are arranged around the central magnetic steel, the first opening is located in the central area of the central magnetic steel, and the second opening is correspondingly located in the central area of the yoke.
Further, the first opening and the second opening are blind holes, the first opening is located on one face of the magnetic steel, which is close to the yoke, and the second opening is located on one face of the yoke, which is close to the magnetic steel.
Further, the first opening and the second opening are through holes.
Further, one of the first opening and the second opening is a through hole, and the other is a blind hole.
Further, the first opening and the second opening are both cylindrical.
Further, the diameters of the first opening and the second opening are equal.
Further, the connecting piece is a pin.
Further, the pin is made of copper.
Further, the pin is in interference fit with the first opening and the second opening.
The utility model has the beneficial effects that: through set up first trompil on the magnet steel and set up on the yoke with the second trompil that first trompil corresponds makes the both ends of connecting piece be located respectively in first trompil and the second trompil, and then makes the magnet steel link to each other with the yoke through the connecting piece to improve the connection steadiness of yoke and magnet steel, and when assembling magnetic circuit, the connecting piece still can play the effect of location to the magnet steel, is favorable to improving the uniformity and the production efficiency of micro-speaker manufacturing.
Drawings
Fig. 1 is an exploded view of a micro-speaker according to a first embodiment of the present utility model;
fig. 2 is a cross-sectional view of a micro speaker according to a first embodiment of the present utility model;
fig. 3 is a cross-sectional view of a micro-speaker according to a second embodiment of the present utility model;
fig. 4 is a cross-sectional view of a micro speaker according to a third embodiment of the present utility model.
Description of the reference numerals:
1. a basin stand; 11. a vibrating diaphragm; 12. a voice coil; 13. washer;
2. magnetic steel; 21. a first opening;
3. a yoke; 31. a second opening;
4. and a connecting piece.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 4, a micro-speaker includes:
the basin stand 1 is provided with a vibration system;
the magnetic circuit system is arranged on the basin frame 1 and comprises magnetic steel 2 and a yoke 3 which are connected;
a first opening 21, wherein the first opening 21 is positioned on the magnetic steel 2;
a second opening 31, the second opening 31 being located on the yoke 3, the second opening 31 being disposed corresponding to the first opening 21, the second opening 31 being in communication with the first opening 21;
and a connecting piece 4, wherein a part of the connecting piece 4 is positioned in the first opening 21, another part of the connecting piece 4 is positioned in the second opening 31, and the magnetic steel 2 is connected with the yoke 3 through the connecting piece 4.
From the above description, the beneficial effects of the utility model are as follows: through set up first trompil 21 on the magnet steel 2 and set up on the yoke 3 with the second trompil 31 that first trompil 21 corresponds makes the both ends of connecting piece 4 be located respectively in first trompil 21 and second trompil 31, and then makes magnet steel 2 link to each other with yoke 3 through connecting piece 4 to improve the connection steadiness of yoke 3 and magnet steel 2, and when assembling magnetic circuit, connecting piece 4 still can play the effect of location to magnet steel 2, is favorable to improving the uniformity and the production efficiency that micro-speaker was made.
Further, the magnetic steel 2 includes a central magnetic steel and four side magnetic steels, the four side magnetic steels are disposed around the central magnetic steel, the first opening 21 is located in a central area of the central magnetic steel, and the second opening 31 is correspondingly located in a central area of the yoke 3.
As can be seen from the above description, one end of the connecting piece 4 is connected to the central area of the magnetic steel 2, and the other end of the connecting piece 4 is connected to the central area of the yoke 3, so that the magnetic steel 2 and the yoke 3 can be balanced under the condition that only one connecting piece 4 is used for connecting the magnetic steel 2 and the yoke 3, which is beneficial to reducing the influence of the opening on the magnetism of the magnetic steel 2.
Further, the first opening 21 and the second opening 31 are blind holes, the first opening 21 is located on one surface of the magnetic steel 2 near the yoke 3, and the second opening 31 is located on one surface of the yoke 3 near the magnetic steel 2.
Further, the first opening 21 and the second opening 31 are through holes.
Further, one of the first opening 21 and the second opening 31 is a through hole, and the other is a blind hole.
As can be seen from the above description, the first opening 21 and the second opening 31 are various, which effectively enriches the variety of the micro-speaker.
Further, the first opening 21 and the second opening 31 are both cylindrical.
Further, the diameters of the first opening 21 and the second opening 31 are equal.
As can be seen from the above description, the diameters of the first opening 21 and the second opening 31 are equal to each other, which facilitates processing.
Further, the connecting piece 4 is a pin.
Further, the pin is made of copper.
From the above description, the pin made of copper has high structural strength and is easy to process and form, thereby being beneficial to reducing the manufacturing cost.
Further, the pin is in interference fit with both the first opening 21 and the second opening 31.
From the above description, the interference fit connection has the advantages of simple structure, good centering, large bearing capacity and the like.
Example 1
Referring to fig. 1 and 2, a first embodiment of the utility model is as follows: a miniature loudspeaker can be widely used in electronic equipment such as mobile phones and computers.
The miniature loudspeaker comprises a magnetic circuit system, a vibration system and a basin frame 1 for accommodating and fixing the magnetic circuit system and the vibration system, wherein the magnetic circuit system comprises a washer 13, magnetic steels 2 and a yoke 3, the vibration system comprises a vibrating diaphragm 11 and a voice coil 12, the magnetic steels 2 are arranged on the yoke 3, the magnetic steels 2 comprise a central magnetic steel and four side magnetic steels, the four side magnetic steels surround the central magnetic steel, the washer 13 comprises a central washer and Bian Huasi, the central washer is arranged on the central magnetic steel, the Bian Huasi is arranged on the side magnetic steels, the voice coil 12 is connected with the vibrating diaphragm 11, a magnetic circuit gap is formed between the central magnetic steels and the side magnetic steels, at least part of area of the voice coil 12 is positioned in the magnetic circuit gap, and the washer 13 can concentrate N poles and S poles of the magnetic steels to the magnetic circuit gap through a magnetic circuit, so that the magnetic circuit gap generates a stronger magnetic field.
Be equipped with first trompil 21 on the magnet steel 2, be equipped with second trompil 31 on the yoke 3, first trompil 21 with second trompil 31 corresponds the setting, first trompil 21 intercommunication second trompil 31 still includes connecting piece 4, the regional position of part of connecting piece 4 21 in the first trompil, the regional position of another part of connecting piece 4 is in the second trompil 31, magnet steel 2 passes through connecting piece 4 with yoke 3 is connected in order to improve yoke 3 and magnet steel 2's connection steadiness. Preferably, the first opening 21 is located in a central region of the central magnetic steel, and the second opening 31 is located in a central region of the yoke 3.
Specifically, in this embodiment, the first opening 21 and the second opening 31 are all cylindrical, the diameters of the first opening 21 and the second opening 31 are equal, the first opening 21 and the second opening 31 are coaxially arranged, the connecting piece 4 is a cylindrical pin, the cylindrical pin is made of copper, and the cylindrical pin is in interference fit with the first opening 21 and the second opening 31. In other embodiments, the shape of the first opening 21 and the second opening 31 may be adjusted according to the shape of the connecting member 4.
Referring to fig. 1 and 2, the first opening 21 and the second opening 31 are blind holes, the first opening 21 is located on a surface of the magnetic steel 2 near the yoke 3, and the second opening 31 is located on a surface of the yoke 3 near the magnetic steel 2. In this embodiment, when the magnetic steel 2 is attached to the yoke 3, the first opening 21 and the second opening 31 form a cavity, and the connecting piece 4 is located in the cavity, so that the appearance of the speaker is not affected; when the magnetic circuit system is assembled, one end of the connecting piece 4 is inserted into the second opening 31 on the yoke iron 3, and then the first opening 21 on the magnetic steel 2 is sleeved in the other end of the connecting piece 4, so that the connecting piece 4 is completely positioned in the cavity, the connection stability of the magnetic steel 2 and the yoke iron 3 is improved, the magnetic steel 2 is positioned, and the possibility that the magnetic steel 2 falls off when the magnetic circuit system is assembled is effectively reduced.
Example two
Referring to fig. 3, a second embodiment of the present utility model is a parallel technical solution of the first embodiment, and is different from the first embodiment in that: the first opening 21 and the second opening 31 are through holes. In this embodiment, since the first opening 21 and the second opening 31 are through holes, when the magnetic circuit system is assembled, the magnetic steel 2 and the yoke 3 may not be separated, the connecting piece 4 may be first installed on the yoke 3, penetrated through the second opening 31, then installed in alignment on the magnetic steel 2, also may be first installed on the magnetic steel 2, penetrated through the first opening 21, then the connecting piece 4 extending from the first opening 21 is inserted into the second opening 31, or, first, one end of the connecting piece 4 is slightly inserted into the first opening 21/the second opening 31, so that a positioning effect may be achieved, after the magnetic steel 2/yoke 3 is fixed from the other end of the connecting piece 4, then the slightly inserted end of the connecting piece 4 is completely inserted, so that the magnetic steel 2 and the yoke 3 are attached, thereby completing the installation, and the assembly mode is various, and may be arbitrarily selected by a worker.
Example III
Referring to fig. 4, a third embodiment of the present utility model is a parallel technical solution of the first embodiment, and is different from the first embodiment in that: one of the first opening 21 and the second opening 31 is a through hole, and the other is a blind hole. In this embodiment, the first opening 21 is a through hole, the second opening 31 is a blind hole, and when the magnetic circuit system is assembled, one end of the connecting piece 4 may be inserted into the second opening 31 first, and after the connecting piece is abutted against the yoke 3, the magnetic steel 2 is installed in a contraposition manner, or the connecting piece 4 is directly inserted from a side of the magnetic steel 2 away from the yoke 3, and aligned with the second opening 31 to extend into the connecting piece, thereby completing the installation. In other embodiments, the first opening 21 may be a blind hole, and the second opening 31 may be a through hole, which may be freely set according to practical needs.
In summary, according to the micro-speaker provided by the utility model, the first opening is formed in the magnetic steel and the second opening corresponding to the first opening is formed in the yoke, so that two ends of the connecting piece are respectively located in the first opening and the second opening, and the magnetic steel is further connected with the yoke through the connecting piece, so that the connection stability of the yoke and the magnetic steel is improved.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (10)
1. A miniature loudspeaker, characterized by: comprising
The basin stand is provided with a vibration system;
the magnetic circuit system is arranged on the basin frame and comprises magnetic steel and a yoke which are connected;
the first opening is positioned on the magnetic steel;
the second opening is positioned on the yoke, and is correspondingly arranged with the first opening and communicated with the first opening;
the connecting piece, a part of region of connecting piece is located in the first trompil, another part of region of connecting piece is located in the second trompil, the magnet steel passes through the connecting piece with the yoke is connected.
2. A micro-speaker as claimed in claim 1, wherein: the magnetic steel comprises a central magnetic steel and four side magnetic steels, the four side magnetic steels are arranged around the central magnetic steel, the first opening is positioned in the central area of the central magnetic steel, and the second opening is correspondingly positioned in the central area of the yoke iron.
3. A micro-speaker as claimed in claim 1, wherein: the first opening and the second opening are blind holes, the first opening is positioned on one surface of the magnetic steel, which is close to the yoke, and the second opening is positioned on one surface of the yoke, which is close to the magnetic steel.
4. A micro-speaker as claimed in claim 1, wherein: the first opening and the second opening are through holes.
5. A micro-speaker as claimed in claim 1, wherein: one of the first opening and the second opening is a through hole, and the other is a blind hole.
6. A micro-speaker as claimed in claim 1, wherein: the first opening and the second opening are cylindrical.
7. A micro-speaker as claimed in claim 6, wherein: the diameters of the first opening and the second opening are equal.
8. A micro-speaker as claimed in claim 1, wherein: the connecting piece is a pin.
9. A micro-speaker as claimed in claim 8, wherein: the pin is made of copper.
10. A micro-speaker as claimed in claim 8, wherein: the pin is in interference fit with the first opening and the second opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222959755.7U CN219145592U (en) | 2022-11-04 | 2022-11-04 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222959755.7U CN219145592U (en) | 2022-11-04 | 2022-11-04 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219145592U true CN219145592U (en) | 2023-06-06 |
Family
ID=86566371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222959755.7U Active CN219145592U (en) | 2022-11-04 | 2022-11-04 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219145592U (en) |
-
2022
- 2022-11-04 CN CN202222959755.7U patent/CN219145592U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100930537B1 (en) | Micro speaker including a structure of uniting an vibration plate for high power | |
| CN209659588U (en) | Sounding device and electronic equipment | |
| US20200045451A1 (en) | Speaker | |
| CN205051866U (en) | Sounding device | |
| KR20140013894A (en) | Speaker | |
| CN201789618U (en) | Magnetic circuit structure and loudspeaker using same | |
| CN219145592U (en) | Miniature loudspeaker | |
| CN201839425U (en) | Double-loop integrated sounding device | |
| CN102387450A (en) | Dual-magnetic-gap dual-coil external-magnetic transducer and preparation method thereof | |
| CN208489980U (en) | Woofer | |
| CN218514504U (en) | Magnetic conduction structure of circular double-sided loudspeaker | |
| WO2020087754A1 (en) | Sound emission device and headset | |
| CN220776065U (en) | Magnetic circuit assembly and miniature loudspeaker | |
| CN210958781U (en) | Effectual speaker china of magnetic conduction | |
| CN205320278U (en) | Long stroke speaker | |
| CN212969956U (en) | Compact high tone quality speaker subassembly | |
| CN204887441U (en) | Novel miniature speaker | |
| CN203722777U (en) | A sandwich vibration armature type telephone receiver | |
| CN218959120U (en) | Sound production unit and electronic equipment | |
| CN218473374U (en) | Double-magnetic circuit double-unit loudspeaker | |
| CN219876087U (en) | Micro-speaker | |
| CN109327778A (en) | Sounding device and earphone | |
| CN218679356U (en) | Sound production device and electronic equipment | |
| CN218124921U (en) | R intra-annular oblique loudspeaker | |
| CN210840046U (en) | Loudspeaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |