CN211128180U - Large-amplitude micro loudspeaker - Google Patents
Large-amplitude micro loudspeaker Download PDFInfo
- Publication number
- CN211128180U CN211128180U CN202020082410.6U CN202020082410U CN211128180U CN 211128180 U CN211128180 U CN 211128180U CN 202020082410 U CN202020082410 U CN 202020082410U CN 211128180 U CN211128180 U CN 211128180U
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- voice coil
- magnetic circuit
- microspeaker
- amplitude
- dodging
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Abstract
The utility model discloses a miniature speaker of big amplitude, including magnetic circuit assembly, voice coil loudspeaker voice coil, basin frame subassembly and supporting component, in magnetic circuit assembly located basin frame subassembly, during magnetic circuit assembly was located to the voice coil loudspeaker voice coil, supporting component connected basin frame subassembly and voice coil loudspeaker voice coil, magnetic circuit assembly included the yoke, was equipped with on the yoke to be used for dodging a plurality of through-holes of supporting component and was used for dodging a plurality of grooves of dodging of voice coil loudspeaker voice coil, and the both ends of dodging the groove communicate different through-holes respectively. When the micro loudspeaker of big amplitude during operation, the through-hole on the magnetic circuit subassembly can keep away the position to supporting component, makes supporting component obtain wider vibration space in limited space, and the setting of keeping away the groove has also created bigger vibration space for the voice coil loudspeaker voice coil, does benefit to the biggest amplitude that improves the micro loudspeaker of big amplitude, produces the tone quality that the noise influences the speaker with the magnetic circuit subassembly collision when avoiding vibrating component to produce big amplitude, has promoted the wholeness ability of the micro loudspeaker of big amplitude.
Description
Technical Field
The utility model relates to an electroacoustic transducer technical field especially relates to a miniature speaker of big amplitude.
Background
The speaker and the receiver used in the current mobile terminal are popularizing the large amplitude speaker or the ultra-linear speaker, and along with the improvement of the requirement of the speaker amplitude, the requirement of the vibration part on the vibration space is more and more increased, and how to improve the vibration space of the vibration part as much as possible in the limited space is always an important research and development direction of technicians in the field.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: provided is a large-amplitude micro-speaker having a large vibration space.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a miniature speaker of big amplitude, includes magnetic circuit component, voice coil loudspeaker voice coil, basin frame subassembly and supporting component, magnetic circuit component locates in the basin frame subassembly, the voice coil loudspeaker voice coil is located among the magnetic circuit component, supporting component connects the basin frame subassembly with the voice coil loudspeaker voice coil, magnetic circuit component includes the yoke, be equipped with on the yoke and be used for dodging a plurality of through-holes of supporting component and be used for dodging a plurality of grooves of dodging of voice coil loudspeaker voice coil, the both ends of dodging the groove communicate different respectively the through-hole.
Furthermore, the magnetic circuit component is provided with a frame-shaped magnetic gap, the voice coil is positioned in the magnetic gap, the corners of the magnetic gap are respectively and correspondingly provided with the through holes, and the avoiding groove is arranged corresponding to the magnetic gap.
Further, a cover plate for sealing the through hole is arranged at the bottom of the yoke.
Furthermore, a groove communicated with the through hole is formed in one side, close to the through hole, of the cover plate.
Furthermore, the cover plate is made of metal, plastic, rubber or wood.
Furthermore, one side of the yoke iron, which is far away from the avoiding groove, is provided with a convex strip corresponding to the avoiding groove.
Further, the support assembly comprises a flexible circuit board and an auxiliary membrane, the auxiliary membrane is arranged on the flexible circuit board, and the auxiliary membrane is provided with an arc-shaped section.
Further, the flexible circuit board comprises a bonding portion and a bending portion, wherein the bonding portion is connected with the voice coil, and the bending portion is connected with the basin frame assembly.
Further, the flexible circuit board further comprises a bonding pad connected with the bonding part, the voice coil comprises a voice coil lead, and the voice coil lead is electrically connected with the bonding pad.
Furthermore, at least one of the bonding portion, the bonding pad, the top end of the arc-shaped section and a bending area of the bending portion, which is close to the voice coil and has a bending angle larger than 90 degrees, is arranged corresponding to the through hole.
The beneficial effects of the utility model reside in that: when the micro loudspeaker of big amplitude during operation, the through-hole on the magnetic circuit subassembly can keep away the position to supporting component, makes supporting component obtain wider vibration space in limited space, and the setting of keeping away the groove has also created bigger vibration space for the voice coil loudspeaker voice coil, does benefit to the biggest amplitude that improves the micro loudspeaker of big amplitude, produces the tone quality that the noise influences the speaker with the magnetic circuit subassembly collision when avoiding vibrating component to produce big amplitude, has promoted the wholeness ability of the micro loudspeaker of big amplitude.
Drawings
Fig. 1 is a cross-sectional view of a large-amplitude micro-speaker according to an embodiment of the present invention;
FIG. 2 is an enlarged view of detail A in FIG. 1;
FIG. 3 is an enlarged view of detail B of FIG. 1;
fig. 4 is a cross-sectional view of another view angle of the large-amplitude micro-speaker according to the embodiment of the present invention.
Description of reference numerals:
1. a voice coil; 11. a voice coil lead; 2. a basin stand assembly; 3. a support assembly; 31. a flexible circuit board; 311. an adhesive portion; 312. a bending section; 313. a pad; 32. a secondary membrane; 4. a yoke; 5. a through hole; 6. an avoidance groove; 7. a convex strip; 8. a magnetic gap; 9. a cover plate; 91. and (4) a groove.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The utility model discloses the most crucial design lies in: set up on the yoke and be used for keeping away the through-hole of position and be used for keeping away the groove of dodging of position to the voice coil loudspeaker voice coil, improved vibration assembly's vibration space effectively, ensure that vibration assembly can not bump with magnetic circuit assembly at the in-process of vibration to guarantee the performance of speaker.
Referring to fig. 1 to 4, a large-amplitude micro speaker includes a magnetic circuit assembly, a voice coil 1, a frame assembly 2 and a support assembly 3, the magnetic circuit assembly is disposed in the frame assembly 2, the voice coil 1 is disposed in the magnetic circuit assembly, the support assembly 3 is connected to the frame assembly 2 and the voice coil 1, the magnetic circuit assembly includes a yoke 4, the yoke 4 is provided with a plurality of through holes 5 for avoiding the support assembly 3 and a plurality of avoidance grooves 6 for avoiding the voice coil 1, and two ends of the avoidance grooves 6 are respectively communicated with the different through holes 5.
From the above description, the beneficial effects of the present invention are: when the micro loudspeaker of big amplitude during operation, through-hole 5 on the magnetic circuit assembly can keep away the position to supporting component 3, make supporting component 3 obtain wider vibration space in limited space, and the setting of dodging groove 6 has also created bigger vibration space for voice coil loudspeaker voice coil 1, do benefit to the maximum amplitude that improves the micro loudspeaker of big amplitude, produce the tone quality that the noise produced when colliding with the magnetic circuit assembly when avoiding vibrating component to produce big amplitude and influence the speaker, the wholeness ability of the micro loudspeaker of big amplitude has been promoted.
Further, the magnetic circuit assembly is provided with a frame-shaped magnetic gap 8, the voice coil 1 is located in the magnetic gap 8, the through holes 5 are correspondingly arranged at the corners of the magnetic gap 8, and the avoiding grooves 6 are arranged corresponding to the magnetic gap 8.
It can be known from the above description that the magnetic circuit component includes central magnet steel and a plurality of limit magnet steel, central magnet steel and limit magnet steel enclose into magnetic gap 8, voice coil 1 vibrates in magnetic gap 8 and makes the speaker sound production, and the through-hole 5 that four bights of magnetic gap 8 set up corresponds the position of supporting component 3, makes supporting component 3 obtains large-scale vibration space.
Further, a cover plate 9 for closing the through hole 5 is arranged at the bottom of the yoke 4.
As can be seen from the above description, the cover plate 9 for closing the through hole 5 is disposed at the bottom of the yoke 4 to ensure the air tightness of the large amplitude speaker, and to protect the internal parts of the large amplitude speaker from water and dust.
Furthermore, a groove 91 communicated with the through hole 5 is arranged on one side, close to the through hole 5, of the cover plate 9.
As can be seen from the above description, the provision of the groove 91 on the cover plate 9, which is communicated with the through hole 5, further increases the vibration space of the support assembly 3, which is beneficial to improving the performance of the large-amplitude speaker.
Further, the cover plate 9 is made of metal, plastic, rubber or wood.
As can be seen from the above description, the material of the cover plate 9 can be selected according to actual requirements, so as to meet the use requirements under different conditions.
Furthermore, one side of the yoke iron 4 away from the avoiding groove 6 is provided with a convex strip 7 arranged corresponding to the avoiding groove 6.
The above description shows that the avoiding grooves 6 and the convex strips 7 can be formed in one step through a stamping process, which is beneficial to simplifying the processing process of the large-amplitude micro-speaker and reducing the processing cost. More importantly, the raised strips 7 can increase the strength of the yoke iron 4, and effectively improve the deformation phenomenon of the yoke iron 4 after the large-amplitude micro-speaker falls down.
Further, the support assembly 3 includes a flexible circuit board 31 and a secondary film 32, the secondary film 32 is disposed on the flexible circuit board 31, and the secondary film 32 has an arc-shaped section.
As can be seen from the above description, the supporting assembly 3 is formed by combining multiple groups of supporting members, so as to obtain a large enough constraint force to limit the swing of the voice coil 1, and realize the large amplitude piston vibration of the speaker, wherein the secondary membrane 32 plays a main supporting role, and the arc-shaped section structure of the secondary membrane 32 has good elasticity, which is beneficial to improving the rolling vibration and swing of the voice coil 1 and improving the sound quality of the large amplitude speaker.
Further, the flexible circuit board 31 includes a bonding portion 311 and a bending portion 312, which are connected to each other, the bonding portion 311 is bonded to the voice coil 1, and the bending portion 312 is connected to the frame assembly 2.
As can be seen from the above description, the flexible circuit board 31 in the support assembly 3 serves as an auxiliary support and communication, the bonding portion 311 is bonded to the voice coil 1 to restrain the voice coil 1 from swinging, and the bending portion 312 connects the voice coil 1 to the frame assembly 2.
Further, the flexible circuit board 31 further includes a pad 313 connected to the bonding portion 311, the voice coil 1 includes a voice coil lead 11, and the voice coil lead 11 is electrically connected to the pad 313.
As can be seen from the above description, the pad 313 is electrically connected to the voice coil lead 11, and the voice coil 1 is connected to a circuit, so as to implement the electro-acoustic conversion function of the large amplitude speaker.
Further, at least one of the bonding portion 311, the pad 313, the top end of the arc-shaped segment, and a bending region of the bending portion 312, which is close to the voice coil 1 and has a bending angle greater than 90 °, is disposed corresponding to the through hole 5.
Example one
Referring to fig. 1 to 4, a first embodiment of the present invention is: please combine fig. 1, fig. 2 and fig. 4, a large-amplitude micro speaker, which includes a magnetic circuit assembly, a voice coil 1, a frame assembly 2 and a supporting assembly 3, wherein the magnetic circuit assembly is disposed in the frame assembly 2, the voice coil 1 is disposed in the magnetic circuit assembly, the supporting assembly 3 is connected to the frame assembly 2 and the voice coil 1, the magnetic circuit assembly includes a yoke 4, a plurality of through holes 5 for avoiding the supporting assembly 3 and a plurality of avoiding grooves 6 for avoiding the voice coil 1 are disposed on the yoke 4, and two ends of the avoiding grooves 6 are respectively communicated with the different through holes 5. Preferably, the avoiding groove 6 is formed by a stamping process, so that a convex strip 7 can be formed on one side of the yoke 4 far away from the avoiding groove 6, the existence of the convex strip 7 can increase the strength of the yoke 4, the deformation phenomenon of the yoke 4 is improved, and the stability of the large-amplitude micro-speaker is effectively improved.
Referring to fig. 2 and 3, the magnetic circuit assembly has a frame-shaped magnetic gap 8, the voice coil 1 is located in the magnetic gap 8, the through holes 5 are respectively and correspondingly arranged at the corners of the magnetic gap 8, and the avoiding groove 6 is arranged corresponding to the magnetic gap 8. It is therefore easy to see that, in the present embodiment, the number of the supporting members 3 is plural, and each supporting member 3 corresponds to a different through hole 5.
Referring to fig. 1 to 3, in the present embodiment, the supporting assembly 3 includes a flexible circuit board 31 and a secondary film 32, the secondary film 32 is disposed on the flexible circuit board 31, and the secondary film 32 has an arc-shaped section. In detail, flexible circuit board 31 includes bonding portion 311 and flexion 312 that link to each other, bonding portion 311 bonds with voice coil loudspeaker voice coil 1, flexion 312 with basin frame subassembly 2 links to each other, flexible circuit board 31 still include with the pad 313 that bonding portion 311 links to each other, voice coil loudspeaker voice coil 1 includes voice coil loudspeaker voice coil lead 11, voice coil loudspeaker voice coil lead 11 with the pad 313 electricity is connected.
Further, at least one of the bonding portion 311, the pad 313, the top end of the arc-shaped segment, and a bending region of the bending portion 312, which is close to the voice coil 1 and has a bending angle greater than 90 °, is disposed corresponding to the through hole 5. The deformation of the four parts is larger, and the position avoiding requirement is more urgent.
Referring to fig. 1 to 3, in order to ensure the sealing performance of the large-amplitude micro-speaker, a cover plate 9 for closing the through hole 5 is disposed at the bottom of the yoke 4, and specifically, the cover plate 9 and the yoke 4 are welded, glued, bonded by hot pressing, screwed or fastened. Optionally, the cover plate 9 is made of metal, plastic, rubber or wood.
Example two
Referring to fig. 1 to 4, another technical solution is provided for the structure of the cover plate 9 according to the second embodiment of the present invention, which is different from the first embodiment only in the structure of the cover plate 9, as shown in fig. 4, in this embodiment, a groove 91 communicating with the through hole 5 is disposed on one side of the cover plate 9 close to the through hole 5, so as to further increase the vibration space of the vibration assembly to improve the performance of the large-amplitude speaker.
To sum up, the utility model provides a miniature speaker of big amplitude has stable acoustic performance when realizing big amplitude, and processing technology is simple moreover, and structural strength is big.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a miniature speaker of big amplitude, includes magnetic circuit subassembly, voice coil loudspeaker voice coil, basin frame subassembly and supporting component, magnetic circuit subassembly is located in the basin frame subassembly, the voice coil loudspeaker voice coil is located among the magnetic circuit subassembly, supporting component connects basin frame subassembly with the voice coil loudspeaker voice coil, magnetic circuit subassembly includes yoke, its characterized in that: be equipped with on the yoke and be used for dodging a plurality of through-holes of supporting component and being used for dodging a plurality of grooves of dodging of voice coil loudspeaker voice coil, the both ends of dodging the groove communicate different respectively the through-hole.
2. The large amplitude microspeaker of claim 1 wherein: the magnetic circuit component is provided with a frame-shaped magnetic gap, the voice coil is positioned in the magnetic gap, the corners of the magnetic gap are respectively and correspondingly provided with the through holes, and the avoiding groove is arranged corresponding to the magnetic gap.
3. The large amplitude microspeaker of claim 1 wherein: and a cover plate for sealing the through hole is arranged at the bottom of the yoke.
4. The large amplitude microspeaker of claim 3 wherein: and a groove communicated with the through hole is formed in one side, close to the through hole, of the cover plate.
5. The large amplitude microspeaker of claim 3 wherein: the cover plate is made of metal, plastic, rubber or wood.
6. The large amplitude microspeaker of claim 1 wherein: one side of the yoke iron, which is far away from the avoiding groove, is provided with a convex strip corresponding to the avoiding groove.
7. The large amplitude microspeaker of claim 1 wherein: the support assembly comprises a flexible circuit board and an auxiliary film, the auxiliary film is arranged on the flexible circuit board, and the auxiliary film is provided with an arc-shaped section.
8. The large amplitude microspeaker of claim 7 wherein: the flexible circuit board comprises a bonding portion and a bending portion, wherein the bonding portion is connected with the voice coil, and the bending portion is connected with the basin frame assembly.
9. The large amplitude microspeaker of claim 8 wherein: the flexible circuit board further comprises a bonding pad connected with the bonding part, the voice coil comprises a voice coil lead, and the voice coil lead is electrically connected with the bonding pad.
10. The large amplitude microspeaker of claim 9 wherein: at least one of the bonding portion, the bonding pad, the top end of the arc-shaped section and a bending area of the bending portion, which is close to the voice coil and has a bending angle larger than 90 degrees, is arranged corresponding to the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020082410.6U CN211128180U (en) | 2020-01-15 | 2020-01-15 | Large-amplitude micro loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020082410.6U CN211128180U (en) | 2020-01-15 | 2020-01-15 | Large-amplitude micro loudspeaker |
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| Publication Number | Publication Date |
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| CN211128180U true CN211128180U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020082410.6U Active CN211128180U (en) | 2020-01-15 | 2020-01-15 | Large-amplitude micro loudspeaker |
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| CN (1) | CN211128180U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112153536A (en) * | 2020-08-27 | 2020-12-29 | 深圳市信维声学科技有限公司 | Big amplitude speaker of suspension wire |
| CN113115184A (en) * | 2021-04-12 | 2021-07-13 | 益阳市信维声学科技有限公司 | Loudspeaker module |
-
2020
- 2020-01-15 CN CN202020082410.6U patent/CN211128180U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112153536A (en) * | 2020-08-27 | 2020-12-29 | 深圳市信维声学科技有限公司 | Big amplitude speaker of suspension wire |
| CN113115184A (en) * | 2021-04-12 | 2021-07-13 | 益阳市信维声学科技有限公司 | Loudspeaker module |
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