CN117915246A - Loudspeaker - Google Patents
Loudspeaker Download PDFInfo
- Publication number
- CN117915246A CN117915246A CN202410316870.3A CN202410316870A CN117915246A CN 117915246 A CN117915246 A CN 117915246A CN 202410316870 A CN202410316870 A CN 202410316870A CN 117915246 A CN117915246 A CN 117915246A
- Authority
- CN
- China
- Prior art keywords
- voice coil
- vibrating diaphragm
- loudspeaker
- fixed
- flat plate
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 239000003292 glue Substances 0.000 claims description 9
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 9
- 238000004026 adhesive bonding Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The invention provides a loudspeaker, which comprises a basin frame, a vibrating system fixed on the basin frame and a magnetic circuit system for driving the vibrating system to vibrate, wherein the vibrating system comprises a vibrating diaphragm fixed on the basin frame and a framework for driving the vibrating diaphragm to vibrate so as to connect the vibrating diaphragm and the voice coil, the framework comprises a flat plate part fixed on the vibrating diaphragm and a first extension part from the inner edge of the flat plate part to the direction far away from the vibrating diaphragm, the first extension part comprises a first part which is bent and extended from the flat plate part to the direction far away from the vibrating diaphragm, a second part which is bent and extended from the first part to the direction far away from the flat plate part, the voice coil is fixedly connected with the second part, and at least part of the first extension part also comprises a third part which is bent and extended from the second part to the direction far away from the voice coil. The loudspeaker provided by the invention can improve the stability of the loudspeaker and prolong the service life.
Description
Technical Field
The invention relates to the technical field of acoustoelectric, in particular to a loudspeaker.
Background
Along with the development of science and technology, portable electronic products, such as mobile phones, palm game consoles, navigation devices or palm multimedia entertainment devices, are widely used in daily life of people, and in these mobile electronic devices, a voice playing device is an essential component in the mobile electronic devices, and the user experience when users use these mobile electronic devices is directly affected by the voice quality, so the requirements on speakers applied therein are also increasing.
The loudspeaker of the related art comprises a basin frame, a vibration system fixed on the basin frame and a magnetic circuit system for driving the vibration system to vibrate, wherein the vibration system comprises a vibrating diaphragm fixed on the basin frame and a framework for driving the vibrating diaphragm to vibrate so as to connect the vibrating diaphragm and the voice coil, the edge of the part of the framework fixedly connected with the voice coil is always provided with a sharper edge or burr, when the vibration system vibrates, the stress born by the voice coil wire close to the framework part, especially the R angle area, is concentrated, the insulating layer of the voice coil wire is easy to damage even the central copper wire, thereby causing abnormal resistance of the loudspeaker and short circuit phenomenon.
Accordingly, there is a need to provide a product that solves the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a loudspeaker, which is used for reducing the risk of short circuit of the loudspeaker caused by local damage of voice coil wires, reducing the failure rate and prolonging the service life.
In order to achieve the above object, in an embodiment of the present invention, a speaker includes a frame, a vibration system fixed to the frame, and a magnetic circuit system driving the vibration system to vibrate, where the vibration system includes a diaphragm fixed to the frame, a voice coil driving the diaphragm to vibrate, and a frame connecting the diaphragm and the voice coil, the frame includes a flat plate portion fixed to the diaphragm, a first extension portion extending from an inner edge of the flat plate portion in a direction away from the diaphragm, the first extension portion includes a first portion extending from the flat plate portion in a direction away from the diaphragm in a bending manner, a second portion extending from the first portion in a bending manner in a direction away from the flat plate portion, and the voice coil is fixedly connected with the second portion, and at least a portion of the first extension portion further includes a third portion extending from the second portion in a bending manner in a direction away from the voice coil.
Preferably, the first extension portion includes two oppositely disposed long axis sides, two oppositely disposed short axis sides, and four R-angle areas connecting the long axis sides and the short axis sides, and the third portion is disposed at least one of the long axis sides, the short axis sides, and the R-angle areas.
Preferably, the magnetic circuit system comprises a lower clamping plate, a main magnetic assembly fixed on the lower clamping plate and an auxiliary magnetic assembly encircling the main magnetic assembly to form a magnetic gap, the voice coil is at least partially inserted into the magnetic gap, the main magnetic assembly comprises a first main magnetic steel, a main pole core and a second main magnetic steel which are sequentially overlapped from the lower clamping plate, and the auxiliary magnetic assembly comprises an auxiliary magnetic steel fixed on the lower clamping plate and an auxiliary pole core attached to the auxiliary magnetic steel, and the auxiliary pole core is fixedly held on the basin frame.
Preferably, the vibration system further comprises a flexible circuit board arranged at intervals with the vibrating diaphragm, the framework further comprises a second extending part extending from the outer edge of the flat plate part to the direction away from the vibrating diaphragm, the voice coil comprises a voice coil lead wire electrically connected with the flexible circuit board, the flexible circuit board comprises a body part, an electric connecting part outwards bent and extended from the outer side end of the body part and a lead wire connecting part outwards bent and extended from the inner side end of the body part to the flat plate part, the body part is fixedly connected with the second extending part, and the lead wire connecting part is fixed on the flat plate part and electrically connected with the voice coil through the voice coil lead wire.
Preferably, at least one of the long axis side and the short axis side is provided with a notch avoiding the voice coil lead.
Preferably, a wire guiding groove for avoiding the voice coil wire is further formed in one end, close to the electric connection portion, of the auxiliary pole core.
Preferably, the vibrating diaphragm comprises an inner folding ring, an outer folding ring arranged on the outer side of the inner folding ring, and a ball top which is connected with the inner folding ring and the outer folding ring and covers the flat plate part, wherein the inner folding ring is fixed on the main magnetic assembly, the outer folding ring is fixed on the basin frame, and the ball top is glued with the flat plate part.
Preferably, the flat plate part is provided with a gluing surface glued with the top of the ball, the gluing surface is concavely formed with strip-shaped glue storage grooves along the vibration direction of the vibrating diaphragm, and the two glue storage grooves are respectively positioned at two sides of the inner folding ring.
Preferably, the lower clamping plate is further provided with an avoidance groove for avoiding the voice coil.
The novel loudspeaker comprises a basin frame, a vibrating system fixed on the basin frame and a magnetic circuit system driving the vibrating system to vibrate, wherein the vibrating system comprises a vibrating diaphragm fixed on the basin frame, a voice coil driving the vibrating diaphragm to vibrate and a framework connecting the vibrating diaphragm and the voice coil, the framework comprises a flat plate part fixed on the vibrating diaphragm, a first extension part extending from the inner edge of the flat plate part to the direction far away from the vibrating diaphragm, the first extension part comprises a first part bending and extending from the flat plate part to the direction far away from the vibrating diaphragm, a second part bending and extending from the first part to the direction far away from the flat plate part, the voice coil is fixedly connected with the second part, and at least part of the first extension part further comprises a third part bending and extending from the second part to the direction far away from the voice coil. In the structure, the second part fixedly connected with the voice coil is bent in the direction away from the voice coil to extend out of the third part, so that sharp right angles and burrs of the contact part of the framework and the voice coil are eliminated, the risk of speaker short circuit caused by local damage of the voice coil wire is reduced, the failure rate is reduced, and the service life is prolonged.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it will be obvious that the drawings in the description below are only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person having ordinary skill in the art of the present invention, wherein:
Fig. 1 is a perspective view of a speaker of the present invention;
fig. 2 is an exploded view of the speaker of the present invention;
fig. 3 is a cross-sectional perspective view of the speaker of the present invention taken along line A-A of fig. 1;
FIG. 4 is an enlarged view of a portion B of FIG. 3;
fig. 5 is a perspective view of a third portion of the frame of the speaker of the present invention disposed at the major axis side, the minor axis side and the R-angle region;
FIG. 6 is an enlarged view of a portion C of FIG. 5;
Fig. 7 is a perspective view of a third portion of the frame of the speaker of the present invention disposed only in the R-angle region;
FIG. 8 is an enlarged view of a portion D of FIG. 7;
FIG. 9 is a combination diagram of a voice coil, a bobbin and a secondary core of a speaker of the present invention;
Reference numerals:
100. A speaker;
1. A basin stand;
2. A vibration system; 21. a vibrating diaphragm; 211. an inner folding ring; 212. an outer fold ring; 213. a ball top; 22. a voice coil; 221. a voice coil lead; 23. a skeleton; 231. a flat plate portion; 2311. a gluing surface; 2312. a glue storage groove; 232. a first extension; 2321. a first portion; 2322. a second portion; 2323. a third section; 2324. long axis side; 2325. short axis edge; 2326. an R angle region; 2327. a notch; 233. a second extension; 24. a flexible circuit board; 241. a body portion; 242. an electrical connection; 243. a lead wire connection portion;
3. a magnetic circuit system; 31. a lower clamping plate; 311. an avoidance groove; 32. a main magnetic assembly; 321. a first primary magnetic steel; 322. a main pole core; 323 second main magnetic steel; 33. A magnetic gap; 34. a secondary magnetic assembly; 341. auxiliary magnetic steel; 342. a secondary pole piece; 3421. and a wire guiding groove.
Detailed Description
The following description of the embodiments of the present invention 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 invention. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1-4, the present invention provides a speaker 100, including a frame 1, a vibration system 2 fixed to the frame 1, and a magnetic circuit 3 driving the vibration system 2 to vibrate, where the vibration system 2 includes a diaphragm 21 fixed to the frame 1, a voice coil 22 driving the diaphragm 21 to vibrate, and a frame 23 connecting the diaphragm 21 and the voice coil 22, the frame 23 includes a flat plate portion 231 fixed to the diaphragm 21, a first extension portion 232 extending from an inner edge of the flat plate portion 231 toward a direction away from the diaphragm 21, and a second extension portion 233 extending from an outer edge of the flat plate portion 231 toward a direction away from the diaphragm 21, the first extension portion 232 includes a first portion 2321 extending from the flat plate portion 231 toward a direction away from the diaphragm 21, a second portion 2322 extending from the first portion 2321 toward a direction away from the flat plate portion 231, and the voice coil 22 is fixedly connected to the second portion 2322, and at least a portion of the first extension portion 232 further includes a third portion 2323 extending from the second portion 2322 toward a direction away from the voice coil 22.
As shown in fig. 5-8, the first extension 232 includes two oppositely disposed long-axis sides 2324, two oppositely disposed short-axis sides 2325, and four R-angle regions 2326 connecting the long-axis sides 2324 and the short-axis sides 2325, the third portion 2323 is disposed at least one of the long-axis sides 2324, the short-axis sides 2325, and the R-angle regions 2326, as shown in fig. 5-6, the third portion 2323 may be disposed at the long-axis sides 2324, the short-axis sides 2325, and the R-angle regions 2326, and, of course, in order to reduce the material consumption and the framework quality, the third portion may be purposefully added in any vulnerable region, as shown in fig. 7-8, the third portion 2323 may be disposed only in the vulnerable R-angle region 2326.
By adding the third portion 2323 to the long-axis side 2324, the short-axis side 2325 and the R-angle region 2326 or only the R-angle region 2326 which is easy to damage, sharp corners and burrs of the framework 23 in the portion fixedly connected with the voice coil 22 can be eliminated, namely, when the voice coil 22 drives the framework 23 to vibrate, the stress of the voice coil wire at the joint with the framework 23 is uniform, the situation that part of the voice coil wire is damaged due to stress concentration is avoided, so that the risk of short circuit of the loudspeaker is reduced, the failure rate is reduced, and the service life of the loudspeaker is prolonged.
Further, the diaphragm 21 includes an inner ring 211, an outer ring 212 disposed outside the inner ring 211, and a top ball 213 connecting the inner ring 211 and the outer ring 212 and covering the flat plate 231, wherein the outer ring 212 is fixed to the frame 1, and the top ball 213 is glued to the flat plate 231.
As shown in fig. 5-8, the flat plate portion 231 has a bonding surface 2311 bonded with the ball top 213, the bonding surface 2311 is concavely formed with strip-shaped glue storage grooves 2312 along the vibration direction of the diaphragm 21, the glue storage grooves 2312 are two and are respectively located at two sides of the inner folding ring 211, and when the frame 23 and the diaphragm 21 are bonded and fixed, the setting of the glue storage grooves 2312 can improve the strength of the frame 23 and ensure the stability of vibration on the one hand, and on the other hand, the frame 23 and the diaphragm 21 can be bonded more firmly, and meanwhile, glue can be effectively prevented from overflowing to other positions on two sides so as to affect the assembly of the loudspeaker.
Further, the vibration system 2 further includes a flexible circuit board 24 disposed at intervals with the diaphragm 21, the voice coil 22 includes a voice coil lead 221 electrically connected to the flexible circuit board 24, the flexible circuit board 24 includes a body portion 241, an electrical connection portion 242 bent and extended outwards from an outer side end of the body portion 241, and a lead connection portion 243 bent and extended from an inner side end of the body portion to the flat plate portion 231, the body portion 241 is fixedly connected with the second extension portion 233 of the frame 23, the lead connection portion 243 is fixed to the flat plate portion 231, the voice coil 22 is electrically connected to the lead connection portion 243 through the voice coil lead 221, and the arrangement of the flexible circuit board 24 can effectively inhibit lateral swinging of the voice coil 22, thereby improving reliability and stability of the speaker 100.
Further, as shown in fig. 2, at least one of the major axis 2324 and the minor axis 2325 is provided with a notch 2327 for avoiding the voice coil lead 221.
Further, as shown in fig. 2-3, the magnetic circuit 3 includes a lower plate 31, a main magnetic assembly 32 fixed to the lower plate 31, and a sub magnetic assembly 34 disposed around the main magnetic assembly 32 to form a magnetic gap 33, the inner ring 211 of the diaphragm 21 is fixed to the main magnetic assembly 32, the lower plate 31 is provided with an avoiding groove 311 for avoiding the voice coil 22, and the main magnetic assembly 32 includes a first main magnetic steel 321, a main pole core 322, and a second main magnetic steel 323 sequentially stacked from the lower plate 31; the auxiliary magnetic assembly 34 comprises auxiliary magnetic steel 341 fixed on the lower clamping plate 31 and auxiliary pole core 342 attached on the auxiliary magnetic steel 341, the auxiliary pole core 342 is fixed on the basin frame 1, one end of the auxiliary pole core 342 close to the electric connection part 242 is also provided with a lead groove 3421 for avoiding the voice coil lead 221, and the voice coil 22 is fixed on the second part 2322 of the framework 23 and inserted into the magnetic gap 33; and the voice coil 22 is electrically connected with the flexible circuit board 24 through the voice coil lead 221, and after being electrified, the voice coil 22 interacts with the magnetic circuit system 3 to drive the framework 23 and the vibrating diaphragm 21 to vibrate and sound.
Compared with the related art, the second part 2322 fixedly connected with the voice coil 22 is bent away from the voice coil 22 to extend out of the third part 2323, sharp corners and burrs of the framework 23 in the part fixedly connected with the voice coil 22 are eliminated, when the voice coil 22 drives the framework 23 to vibrate, the stress of the voice coil wire at the joint of the framework 23 is uniform, the situation that part of the voice coil wire is damaged due to stress concentration is avoided, the risk of speaker short circuit is reduced, the failure rate is reduced, and the service life of the speaker is prolonged.
While the invention has been described with respect to the above embodiments, it should be noted that modifications can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the invention.
Claims (9)
1. The utility model provides a loudspeaker, includes the basin frame, is fixed in vibration system and the drive of basin frame vibration magnetic circuit, vibration system is including being fixed in the vibrating diaphragm of basin frame, drive vibrating diaphragm vibration's voice coil loudspeaker voice coil and connect the vibrating diaphragm with the skeleton of voice coil loudspeaker voice coil, the skeleton is including being fixed in the dull and stereotyped portion of vibrating diaphragm, from the inward flange of dull and stereotyped portion is to keeping away from first extension that the vibrating diaphragm direction extends, first extension includes from dull and stereotyped portion to keeping away from the direction of vibrating diaphragm is buckled the first part that extends, from first part is to the direction of deviating from dull and stereotyped portion is buckled the second part of extension, voice coil loudspeaker voice coil with second part fixed connection, its characterized in that, at least part first extension still includes from the second part is to keeping away from the third part that the direction of voice coil loudspeaker voice coil is buckled.
2. A loudspeaker according to claim 1, wherein: the first extension portion comprises two oppositely arranged long-axis sides, two oppositely arranged short-axis sides and four R-angle areas connected with the long-axis sides and the short-axis sides, and the third portion is arranged at least one of the long-axis sides, the short-axis sides and the R-angle areas.
3. A loudspeaker according to claim 2, wherein: the magnetic circuit system comprises a lower clamping plate, a main magnetic assembly fixed on the lower clamping plate and an auxiliary magnetic assembly encircling the main magnetic assembly to form a magnetic gap, wherein the voice coil is at least partially inserted into the magnetic gap, the main magnetic assembly comprises a first main magnetic steel, a main pole core and a second main magnetic steel which are sequentially overlapped from the lower clamping plate, and the auxiliary magnetic assembly comprises an auxiliary magnetic steel fixed on the lower clamping plate and an auxiliary pole core attached to the auxiliary magnetic steel, and the auxiliary pole core is fixedly held on the basin frame.
4. A loudspeaker according to claim 3, wherein: the vibration system further comprises a flexible circuit board arranged at intervals with the vibrating diaphragm, the framework further comprises a second extending part extending from the outer edge of the flat plate part to the direction away from the vibrating diaphragm, the voice coil comprises a voice coil lead wire electrically connected with the flexible circuit board, the flexible circuit board comprises a body part, an electric connecting part outwards bent and extended from the outer side end of the body part, a lead wire connecting part inwards bent and extended from the inner side end of the body part to the flat plate part, the body part is fixedly connected with the second extending part, and the lead wire connecting part is fixed on the flat plate part and electrically connected with the voice coil through the voice coil lead wire.
5. A loudspeaker according to claim 4, wherein: at least one of the long axis side and the short axis side is provided with a notch avoiding the voice coil lead.
6. A loudspeaker according to claim 4, wherein: and one end of the auxiliary pole core, which is close to the electric connection part, is also provided with a wire guide groove for avoiding the voice coil wire.
7. A loudspeaker according to claim 3, wherein: the vibrating diaphragm comprises an inner folding ring, an outer folding ring arranged on the outer side of the inner folding ring and a ball top which is connected with the inner folding ring and the outer folding ring and covers the flat plate part, the inner folding ring is fixed on the main magnetic assembly, the outer folding ring is fixed on the basin frame, and the ball top is glued with the flat plate part.
8. The loudspeaker as recited in claim 7, wherein: the flat plate part is provided with a gluing surface glued with the top of the ball, the gluing surface is concavely formed with strip-shaped glue storage grooves along the vibration direction of the vibrating diaphragm, and the two glue storage grooves are respectively positioned at two sides of the inner folding ring.
9. The loudspeaker as recited in claim 7, wherein: the lower clamping plate is also provided with an avoidance groove for avoiding the voice coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410316870.3A CN117915246A (en) | 2024-03-20 | 2024-03-20 | Loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410316870.3A CN117915246A (en) | 2024-03-20 | 2024-03-20 | Loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117915246A true CN117915246A (en) | 2024-04-19 |
Family
ID=90689325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410316870.3A Pending CN117915246A (en) | 2024-03-20 | 2024-03-20 | Loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117915246A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013192205A (en) * | 2012-02-15 | 2013-09-26 | Molex Inc | Damper for speaker and speaker device with damper |
| CN213073069U (en) * | 2020-07-06 | 2021-04-27 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| CN214627352U (en) * | 2020-12-25 | 2021-11-05 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
| CN216391395U (en) * | 2021-12-03 | 2022-04-26 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
-
2024
- 2024-03-20 CN CN202410316870.3A patent/CN117915246A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013192205A (en) * | 2012-02-15 | 2013-09-26 | Molex Inc | Damper for speaker and speaker device with damper |
| CN213073069U (en) * | 2020-07-06 | 2021-04-27 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| CN214627352U (en) * | 2020-12-25 | 2021-11-05 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
| CN216391395U (en) * | 2021-12-03 | 2022-04-26 | 瑞声光电科技(常州)有限公司 | Loudspeaker |
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