CN211909146U - Miniature loudspeaker - Google Patents
Miniature loudspeaker Download PDFInfo
- Publication number
- CN211909146U CN211909146U CN202020371988.3U CN202020371988U CN211909146U CN 211909146 U CN211909146 U CN 211909146U CN 202020371988 U CN202020371988 U CN 202020371988U CN 211909146 U CN211909146 U CN 211909146U
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- metal ring
- annular washer
- annular
- micro
- dovetail grooves
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Abstract
The utility model provides a micro loudspeaker, which comprises a metal ring, an annular washer and a basin stand; the metal ring is arranged at the upper part of the basin stand; the annular washer is arranged at the lower part of the basin stand; the metal ring and the annular washer are integrally formed through plastic injection molding. The bonding strength of the metal ring and the annular washer can be effectively improved by injection molding and integral forming, the phenomenon of separation and the like is avoided, and meanwhile, the basin frame is arranged between the integrally formed metal ring and the annular washer and can also play a role in enhancing the integral structural strength of the basin frame, so that the basin frame is not easy to deform, and the service life of the loudspeaker is prolonged; and in the production process, the process of bonding the metal ring and the annular washer or laser welding and fixing is not needed, so that the production efficiency is improved.
Description
Technical Field
The utility model relates to a technical field is made to the speaker, especially relates to a miniature speaker.
Background
At present, most of a loudspeaker and a receiver used by a mobile terminal are moving coil loudspeakers; the moving-coil speaker includes: the device comprises a magnetic circuit system, a vibration system and a basin frame for accommodating and fixing the magnetic circuit system and the vibration system. Wherein, the vibration system includes a diaphragm, a dome and a voice coil. In prior art, in order to solve because of basin frame and the partial width of vibrating diaphragm edge veneer is great, and lead to the vibrating diaphragm to roll over a ring portion width and reduce, influence product audio performance scheduling problem, will change the plastics material basin frame with the vibrating diaphragm edge veneer into the becket and guarantee the bulk strength with the rigidity performance that utilizes the becket to reduce with vibrating diaphragm edge veneer width, make and roll over ring portion width and increase, promote micro-speaker's audio performance.
However, the existing metal ring is fixed on the annular washer by gluing or local laser welding, the fixed connection strength is weak, and the metal ring and the annular washer are easy to deform and separate in the aspect of reliability drop, so that the performance and the service life of the micro-speaker are affected.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides a pair of miniature speaker can improve the fixed strength of becket and annular china department, and then improves the life of speaker.
In order to solve the technical problem, the utility model discloses a technical scheme be: a micro loudspeaker comprises a metal ring, an annular washer and a basin stand;
the metal ring is arranged at the upper part of the basin stand;
the annular washer is arranged at the lower part of the basin stand;
the metal ring and the annular washer are integrally formed through plastic injection molding.
Furthermore, a plurality of first dovetail grooves are respectively arranged on the side walls of the periphery of the metal ring, and the openings of the first dovetail grooves are arranged close to one side edge of the basin frame;
the plane where the first dovetail groove is located is parallel to the vibration direction of the voice coil.
Furthermore, each side wall of the metal ring is provided with two first dovetail grooves;
the two first dovetail grooves are symmetrically arranged along the virtual symmetry plane of the side wall of the metal ring.
Furthermore, a plurality of second dovetail grooves are respectively arranged on the peripheral side edges of the annular washer, and the openings of the second dovetail grooves are arranged close to the side edges of the annular washer;
and the plane where the second dovetail groove is located is vertical to the vibration direction of the voice coil.
Further, an annular groove is formed in one surface, away from the metal ring, of the annular washer;
the outer diameter of the annular groove is equal to that of the annular washer; the inner diameter of the annular groove is larger than that of the annular washer.
Further, the device also comprises a vibrating diaphragm;
the edge gluing part of the vibrating diaphragm is fixedly bonded with one surface of the metal ring away from the annular washer;
and the upper folding ring part of the vibrating diaphragm is fixedly bonded with the outer side surface of the metal ring.
The beneficial effects of the utility model reside in that: the utility model provides a micro loudspeaker, which comprises a metal ring, an annular washer and a basin stand; the metal ring and the annular washer are integrally formed by plastic injection molding. The bonding strength of the metal ring and the annular washer can be effectively improved by injection molding and integral forming, the phenomenon of separation and the like is avoided, and meanwhile, the basin frame is arranged between the integrally formed metal ring and the annular washer and can also play a role in enhancing the integral structural strength of the basin frame, so that the basin frame is not easy to deform, and the service life of the loudspeaker is prolonged; and in the production process, the process of bonding the metal ring and the annular washer or laser welding and fixing is not needed, so that the production efficiency is improved.
Drawings
Fig. 1 is a front view of a micro-speaker according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a micro-speaker according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
fig. 4 is an exploded view of a component of an integrally injection-molded frame of a micro-speaker according to an embodiment of the present invention;
fig. 5 is an exploded view of a micro-speaker according to an embodiment of the present invention;
description of reference numerals:
1. a metal ring; 2. a ring washer; 3. a basin stand; 4. a first dovetail groove; 5. a second dovetail groove; 6. an annular groove; 7. vibrating diaphragm; 8. a voice coil; 9. a centering support; 10. a secondary membrane; 11. a magnetic circuit assembly.
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.
Referring to fig. 1 to 5, a micro speaker includes a metal ring, a ring washer, and a frame;
the metal ring is arranged at the upper part of the basin stand;
the annular washer is arranged at the lower part of the basin stand;
the metal ring and the annular washer are integrally formed through plastic injection molding.
From the above description, the beneficial effects of the present invention are: the utility model provides a micro loudspeaker, which comprises a metal ring, an annular washer and a basin stand; the metal ring and the annular washer are integrally formed by plastic injection molding. The bonding strength of the metal ring and the annular washer can be effectively improved by injection molding and integral forming, the phenomenon of separation and the like is avoided, and meanwhile, the basin frame is arranged between the integrally formed metal ring and the annular washer and can also play a role in enhancing the integral structural strength of the basin frame, so that the basin frame is not easy to deform, and the service life of the loudspeaker is prolonged; and in the production process, the process of bonding the metal ring and the annular washer or laser welding and fixing is not needed, so that the production efficiency is improved.
Furthermore, a plurality of first dovetail grooves are respectively arranged on the side walls of the periphery of the metal ring, and the openings of the first dovetail grooves are arranged close to one side edge of the basin frame;
the plane where the first dovetail groove is located is parallel to the vibration direction of the voice coil.
According to the description, the first dovetail groove can improve the bonding force between the basin frame and the metal ring during the integral injection molding of the basin frame, so that the metal ring is not easy to separate from the basin frame.
Furthermore, each side wall of the metal ring is provided with two first dovetail grooves;
the two first dovetail grooves are symmetrically arranged along the virtual symmetry plane of the side wall of the metal ring.
According to the description, the arrangement of the plurality of first dovetail grooves can improve the bonding strength of the metal ring and the basin frame and improve the bonding stability of the metal ring; secondly, the first dovetail grooves are symmetrically formed in the side wall of each metal ring, so that the metal rings can be stressed uniformly during injection molding, and the phenomenon that the plastic part of the basin stand is easy to crack due to stress concentration is avoided.
Furthermore, a plurality of second dovetail grooves are respectively arranged on the peripheral side edges of the annular washer, and the openings of the second dovetail grooves are arranged close to the side edges of the annular washer;
and the plane where the second dovetail groove is located is vertical to the vibration direction of the voice coil.
According to the description, the second dovetail groove is arranged to improve the bonding force between the basin frame and the annular washer during the integral injection molding of the basin frame, so that the annular washer is not easy to separate from the basin frame.
Further, an annular groove is formed in one surface, away from the metal ring, of the annular washer;
the outer diameter of the annular groove is equal to that of the annular washer; the inner diameter of the annular groove is larger than that of the annular washer.
According to the above description, the arrangement of the groove can enable molten plastic to be filled into the groove during injection molding, so that the bonding force between the basin stand and the annular washer is further improved.
Further, the device also comprises a vibrating diaphragm;
the edge gluing part of the vibrating diaphragm is fixedly bonded with one surface of the metal ring away from the annular washer;
and the upper folding ring part of the vibrating diaphragm is fixedly bonded with the outer side surface of the metal ring.
According to the above description, the design of the basin stand formed by injection molding can increase the folded ring part of the vibrating diaphragm and reduce the glued edge part, so that the audio performance of the micro-speaker is improved.
Referring to fig. 1 to 5, a first embodiment of the present invention is: a micro loudspeaker comprises a metal ring 1, an annular washer 2 and a frame 3;
the metal ring 1 is arranged at the upper part of the basin stand 3;
the annular washer 2 is arranged at the lower part of the basin stand 3;
the metal ring 1 and the annular washer 2 are integrally formed through plastic injection molding.
Specifically, the metal ring 1 and the annular washer 2 are integrally formed with the frame 3 by an insert molding process.
Referring to fig. 3, in particular, the liquid crystal display further includes a diaphragm 7;
the edge gluing part of the vibrating diaphragm 7 is fixedly bonded with one surface of the metal ring 1 away from the annular washer 2;
and the upper folding ring part of the vibrating diaphragm 7 is fixedly bonded with the outer side surface of the metal ring 1.
Specifically, the vibrating diaphragm 7 is glued to the metal ring 1 by glue or double-sided glue.
Referring to fig. 5, specifically, the voice coil 8, the centering support 9, the secondary film 10 and the magnetic circuit assembly 11 are further included;
the bottom of the vibrating diaphragm 7 is connected with the upper part of the voice coil 8, and the centering support 9 is used for keeping the position of the voice coil 8, ensuring that the voice coil 8 only reciprocates along the axial direction when vibrating, and improving the deflection state of the voice coil when working; the auxiliary membrane 10 is used for improving the phenomenon of vibration instability of the voice coil 8; the magnetic circuit assembly 11 provides the required driving force for the vibration of the voice coil 8.
Referring to fig. 2 to 4, a second embodiment of the present invention is: on the basis of the first embodiment of the present invention, a plurality of first dovetail grooves 4 are respectively disposed on the peripheral side walls of the metal ring 1, and the openings of the first dovetail grooves 4 are disposed near one side edge of the basin frame 3;
the plane where the first dovetail groove 4 is located is parallel to the vibration direction of the voice coil 8.
Specifically, the first dovetail groove 4 is manufactured by adopting a punch forming process.
Referring to fig. 4, specifically, each side wall of the metal ring 1 is provided with two first dovetail grooves 4;
the two first dovetail grooves 4 are symmetrically arranged along a virtual symmetry plane of the side wall of the metal ring 1.
Referring to fig. 4, specifically, a plurality of second dovetail grooves 5 are respectively arranged on the peripheral side edges of the annular washer 2, and the openings of the second dovetail grooves 5 are arranged close to the side edges of the annular washer 2;
the plane of the second dovetail groove 5 is perpendicular to the vibration direction of the voice coil 8.
Specifically, the second dovetail groove 5 is manufactured by adopting a punch forming process.
Referring to fig. 3, specifically, an annular groove 6 is formed on a surface of the annular washer 2 away from the metal ring 1;
the outer diameter of the annular groove 6 is equal to that of the annular washer 2; the inner diameter of the annular groove 6 is larger than that of the annular washer 2.
Specifically, the annular groove 6 is manufactured by adopting a blank pressing forming process.
In summary, the utility model provides a micro speaker, which comprises a metal ring, an annular washer and a basin stand; the metal ring and the annular washer are integrally formed with the basin frame by adopting an insert molding process. The bonding strength of the metal ring and the annular washer can be effectively improved by injection molding and integral forming, the phenomenon of separation and the like is avoided, and meanwhile, the basin frame is arranged between the integrally formed metal ring and the annular washer and can also play a role in enhancing the integral structural strength of the basin frame, so that the basin frame is not easy to deform, and the service life of the loudspeaker is prolonged; and in the production process, the process of bonding the metal ring and the annular washer or laser welding and fixing is not needed, so that the production efficiency is improved. Further, be provided with first dovetail on the becket and set up second dovetail and annular groove on annular china department, can improve the bonding power of basin frame and becket and annular china department when with integrative injection moulding of basin frame for the separation appears in being difficult to of becket and annular china department, effectively improves the life of speaker.
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 (6)
1. A micro loudspeaker is characterized by comprising a metal ring, an annular washer and a basin stand;
the metal ring is arranged at the upper part of the basin stand;
the annular washer is arranged at the lower part of the basin stand;
the metal ring and the annular washer are integrally formed through plastic injection molding.
2. The micro-speaker according to claim 1, wherein a plurality of first dovetail grooves are respectively formed on the side walls of the periphery of the metal ring, and the openings of the first dovetail grooves are arranged close to one side edge of the frame;
the plane where the first dovetail groove is located is parallel to the vibration direction of the voice coil.
3. A micro-speaker as claimed in claim 2, wherein two of said first dovetail grooves are provided on each side wall of said metal ring;
the two first dovetail grooves are symmetrically arranged along the virtual symmetry plane of the side wall of the metal ring.
4. The micro-speaker according to claim 1, wherein a plurality of second dovetail grooves are respectively arranged on the peripheral side edges of the annular washer, and the openings of the second dovetail grooves are arranged close to the side edges of the annular washer;
and the plane where the second dovetail groove is located is vertical to the vibration direction of the voice coil.
5. The micro-speaker as claimed in claim 4, wherein a surface of the annular washer away from the metal ring is provided with an annular groove;
the outer diameter of the annular groove is equal to that of the annular washer; the inner diameter of the annular groove is larger than that of the annular washer.
6. The micro-speaker of claim 1, further comprising a diaphragm;
the edge gluing part of the vibrating diaphragm is fixedly bonded with one surface of the metal ring away from the annular washer;
and the upper folding ring part of the vibrating diaphragm is fixedly bonded with the outer side surface of the metal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020371988.3U CN211909146U (en) | 2020-03-23 | 2020-03-23 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020371988.3U CN211909146U (en) | 2020-03-23 | 2020-03-23 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211909146U true CN211909146U (en) | 2020-11-10 |
Family
ID=73269689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020371988.3U Active CN211909146U (en) | 2020-03-23 | 2020-03-23 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211909146U (en) |
-
2020
- 2020-03-23 CN CN202020371988.3U patent/CN211909146U/en active Active
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