CN213462279U - Miniature loudspeaker - Google Patents
Miniature loudspeaker Download PDFInfo
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- CN213462279U CN213462279U CN202022047466.0U CN202022047466U CN213462279U CN 213462279 U CN213462279 U CN 213462279U CN 202022047466 U CN202022047466 U CN 202022047466U CN 213462279 U CN213462279 U CN 213462279U
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- voice coil
- micro
- speaker
- loudspeaker
- magnetic steel
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Abstract
The utility model discloses a micro loudspeaker, including voice coil loudspeaker voice coil, basin frame and connection the support component of basin frame, support component have with the interior installation department that the voice coil loudspeaker voice coil links to each other, the outside of the bottom of voice coil loudspeaker voice coil is equipped with step portion, the top surface of interior installation department is connected the step face of step portion. The step part is arranged on the outer side of the bottom of the voice coil, and the step part can accommodate at least one part of the inner mounting part of the supporting part, so that the supporting part is effectively reduced to occupy the lower vibration space of the voice coil, the bottom of the voice coil can keep a larger distance from the yoke, the amplitude of the micro-speaker is greatly improved, and the micro-speaker can realize large-amplitude vibration; meanwhile, the risk of rubbing and collision between the supporting part and the yoke iron is reduced, the working stability and the acoustic performance of the micro loudspeaker are guaranteed, and the service life of the micro loudspeaker is prolonged.
Description
Technical Field
The utility model relates to an electroacoustic transducer technical field especially relates to a miniature speaker.
Background
As a device capable of converting electric energy into acoustic energy, a micro speaker is widely used in microelectronic devices such as smart phones, camcorders, cameras, and notebook computers. With the increasing lightness and thinness of microelectronic devices and the increasing requirements for sound quality and loudness, the demands for height and amplitude of micro speakers in the consumer market are also increasing.
In the prior art, the scheme of increasing the amplitude is to increase a supporting component (a spider and a secondary film) to suppress the polarization of the voice coil, so as to achieve the effect of increasing the amplitude. But the fixed lower extreme that is located the voice coil loudspeaker voice coil of supporting component can occupy the lower vibration space (the distance of voice coil loudspeaker voice coil bottom to yoke) of voice coil loudspeaker voice coil to lead to the unable very effectual promotion of amplitude, restrict the development of the bigger amplitude of miniature speaker, simultaneously the vice membrane of supporting component rolls over annular deformation portion, and is less with the clearance of yoke, and the amplitude increases, can lead to the book ring portion and the yoke of vice membrane to bump, takes place the noise, and when serious, lead to the rupture of membranes, influence the life-span of miniature speaker.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: provided is a micro-speaker capable of realizing a larger amplitude.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a micro loudspeaker, includes voice coil loudspeaker voice coil, basin frame and connection the support component of basin frame, support component have with the interior installation department that the voice coil loudspeaker voice coil links to each other, the outside of the bottom of voice coil loudspeaker voice coil is equipped with step portion, the top surface of interior installation department is connected the step face of step portion.
Further, the height of the inner mounting part is equal to the depth of the stepped part.
Further, the height of the inner mounting part is smaller than the depth of the step part.
Furthermore, the step portion is internally provided with a reinforcing adhesive for connecting the bottom surface of the inner mounting portion and the voice coil.
Further, the connection of the support member and the voice coil is located at a corner of the voice coil.
Further, the connection position of the supporting part and the voice coil is positioned in the middle area of the side edge of the voice coil.
Further, the width of the step surface of the step part is more than or equal to 0.15 mm.
Further, the support member includes a centering disk and/or a sub-membrane.
Further, still include the vibrating diaphragm subassembly, the vibrating diaphragm subassembly is connected the basin frame with the voice coil loudspeaker voice coil.
The magnetic circuit component comprises a yoke, central magnetic steel, side magnetic steel, a central washer and a side washer, wherein the central magnetic steel and the side magnetic steel are respectively arranged on the yoke, the central washer is arranged on the top surface of the central magnetic steel, and the side washer is fixed on the basin frame and covers the top surface of the side magnetic steel.
The beneficial effects of the utility model reside in that: the step part is arranged on the outer side of the bottom of the voice coil, and the step part can accommodate at least one part of the inner mounting part of the supporting part, so that the supporting part is effectively reduced to occupy the lower vibration space of the voice coil, the bottom of the voice coil can keep a larger distance from the yoke, the amplitude of the micro-speaker is greatly improved, and the micro-speaker can realize large-amplitude vibration; meanwhile, the risk of rubbing and collision between the supporting part and the yoke iron is reduced, the working stability and the acoustic performance of the micro loudspeaker are guaranteed, and the service life of the micro loudspeaker is prolonged.
Drawings
Fig. 1 is an exploded view of a micro-speaker according to a first embodiment of the present invention;
fig. 2 is a cross-sectional view of a micro-speaker according to a first embodiment of the present invention;
fig. 3 is an enlarged view of detail a in fig. 2.
Description of reference numerals:
1. a diaphragm assembly;
2. a voice coil; 21. a step portion; 211. a step surface;
3. a basin stand;
4. a support member; 41. an inner mounting portion; 42. a centering support; 43. a secondary membrane;
5. a yoke;
6. central magnetic steel;
7. edge magnetic steel;
8. a central washer;
9. a border washer;
10. an avoiding 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.
Referring to fig. 1 to 3, a micro speaker includes a voice coil 2, a frame 3, and a support member 4 connected to the frame 3, where the support member 4 has an inner mounting portion 41 connected to the voice coil 2, a step portion 21 is disposed on an outer side of a bottom of the voice coil 2, and a top surface of the inner mounting portion 41 is connected to a step surface 211 of the step portion 21.
From the above description, the beneficial effects of the present invention are: the step part 21 is arranged on the outer side of the bottom of the voice coil 2, the step part 21 can accommodate at least one part of the inner installation part 41 of the support part 4, the downward vibration space of the voice coil 2 occupied by the support part 4 is effectively reduced, the bottom of the voice coil 2 can keep a larger distance with the yoke 5, the amplitude of the micro-speaker is further improved, and the micro-speaker can realize large-amplitude vibration; meanwhile, the risk of rubbing and collision between the supporting part 4 and the yoke iron 5 is reduced, the working stability and the acoustic performance of the micro loudspeaker are guaranteed, and the service life of the micro loudspeaker is prolonged.
Further, the height of the inner mounting portion 41 is equal to the depth of the stepped portion 21.
Further, the height of the inner mounting portion 41 is smaller than the depth of the stepped portion 21.
As is apparent from the above description, the height of the inner mounting portion 41 being less than or equal to the depth of the step portion 21 ensures that the bottom surface of the inner mounting portion 41 does not collide with the yoke 5 during the down vibration of the voice coil 2.
Further, reinforcing glue for connecting the bottom surface of the inner mounting portion 41 and the voice coil 2 is further provided in the step portion 21.
According to the description, the reinforcing glue is added, the bonding strength of the supporting part 4 and the voice coil 2 can be improved, the risk that the supporting part 4 and the voice coil 2 fall off after the micro loudspeaker is used for a long time is reduced, and the service life of a micro loudspeaker product is prolonged to a great extent.
Further, the connection of the support member 4 and the voice coil 2 is located at the corner of the voice coil 2.
Further, the connection point of the support member 4 and the voice coil 2 is located in the middle area of the side of the voice coil 2.
As can be seen from the above description, the positions where the support member 4 and the voice coil 2 can be connected are numerous, and manufacturers can select them as required, which is beneficial to enrich the diversity of the micro-speakers.
Further, the width of the step surface 211 of the step part 21 is greater than or equal to 0.15 mm.
As can be seen from the above description, the step surface 211 of the step part 21 has a sufficient width, so that the bonding strength between the voice coil 2 and the support member 4 can be ensured, and the structural stability of the micro-speaker can be improved.
Further, the support member 4 includes a centering chip 42 and/or a sub-film 43.
As will be appreciated from the above description, the particular configuration of the support member 4 may be arranged as desired.
Further, still include vibrating diaphragm subassembly 1, vibrating diaphragm subassembly 1 is connected basin frame 3 with voice coil loudspeaker voice coil 2.
Further, the magnetic basin comprises a magnetic circuit assembly, wherein the magnetic circuit assembly comprises a yoke 5, a central magnetic steel 6, a side magnetic steel 7, a central washer 8 and a side washer 9, the central magnetic steel 6 and the side magnetic steel 7 are respectively arranged on the yoke 5, the central washer 8 is arranged on the top surface of the central magnetic steel 6, and the side washer 9 is fixed on the basin frame 3 and covers the top surface of the side magnetic steel 7.
Example one
Referring to fig. 1 to fig. 3, a first embodiment of the present invention is: a micro loudspeaker comprises a vibrating diaphragm component 1, a magnetic circuit component, a voice coil 2, a basin frame 3 and a supporting part 4 connected with the basin frame 3, the diaphragm component 1 is connected with the frame 3 and the voice coil 2, the magnetic circuit component comprises a yoke 5, a central magnetic steel 6, a side magnetic steel 7, a central washer 8 and a side washer 9, the central magnetic steel 6 and the side magnetic steel 7 are respectively arranged on the yoke iron 5, the central washer 8 is arranged on the top surface of the central magnetic steel 6, the edge washer 9 is fixed on the basin stand 3 and covers the top surface of the edge magnetic steel 7, specifically, the support member 4 has an inner mounting portion 41 connected to the voice coil 2, a step portion 21 is provided on the outer side of the bottom of the voice coil 2, the top surface of the inner mounting portion 41 connects the step surface 211 of the step portion 21, that is, at least a part of the inner mounting portion 41 is located inside the step portion 21. It should be noted that the step part 21 is formed in the process of winding the voice coil 2, that is, the step part 21 looks like a ring groove as a whole. Optionally, as shown in fig. 1, at least two of the edge magnetic steels 7 are provided with an avoiding groove 10 for avoiding the supporting component 4.
Referring to fig. 2 and 3, more specifically, the height of the inner mounting portion 41 is greater than or equal to the depth of the step portion 21. However, preferably, the height of the internal mounting portion 41 is smaller than the depth of the step portion 21, so that a reinforcing adhesive layer may be further formed in the step portion 21 by providing a reinforcing adhesive for connecting the bottom surface of the internal mounting portion 41 and the voice coil 2, thereby further improving the adhesive strength between the support member 4 and the voice coil 2 and further improving the structural stability of the micro-speaker.
The connection position of the support part 4 and the voice coil 2 is positioned at the corner of the voice coil 2; or, the joint of the support part 4 and the voice coil 2 is positioned in the middle area of the long axis side of the voice coil 2; alternatively, the connection point of the support member 4 and the voice coil 2 is located in the middle area of the short axis side of the voice coil 2.
In order to ensure the bonding strength between the internal mounting portion 41 and the voice coil 2, the width of the step surface 211 of the step portion 21 is greater than or equal to 0.15 mm.
Referring to fig. 1 to 3, the supporting member 4 includes a stiffener 42 or a sub-film 43, but in this embodiment, the supporting member 4 is a combination structure of the stiffener 42 and the sub-film 43, in detail, the sub-film 43 is adhered to the stiffener 42, a fold ring portion of the sub-film 43 is disposed corresponding to a cantilever of the stiffener 42, and the sub-film 43 is located below the stiffener 42. As will be understood, in the present embodiment, the connection structure of the inner fixing portion of the damper 42 and the inner fixing portion of the sub-film 43 forms the inner mounting portion 41.
In summary, the micro speaker provided by the utility model has novel and stable structure; the service life is long; vibration with larger amplitude can be realized, and the acoustic performance is good.
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 micro loudspeaker, includes voice coil loudspeaker voice coil, basin frame and connection the support component of basin frame, support component have with the interior installation department that the voice coil loudspeaker voice coil links to each other, its characterized in that: the outside of the bottom of voice coil loudspeaker voice coil is equipped with step portion, the top surface of interior installation department is connected the step face of step portion.
2. The micro-speaker of claim 1, wherein: the height of the inner mounting part is equal to the depth of the stepped part.
3. The micro-speaker of claim 1, wherein: the height of the inner mounting part is smaller than the depth of the step part.
4. The micro-speaker of claim 3, wherein: the step portion is internally provided with a reinforcing adhesive which is used for connecting the bottom surface of the inner installation portion with the voice coil.
5. The micro-speaker of claim 1, wherein: the connection of the support member and the voice coil is located at a corner of the voice coil.
6. The micro-speaker of claim 1, wherein: the joint of the support component and the voice coil is positioned in the middle area of the side edge of the voice coil.
7. The micro-speaker of claim 1, wherein: the width of the step surface of the step part is more than or equal to 0.15 mm.
8. The micro-speaker of claim 1, wherein: the support member includes a spider and/or a secondary membrane.
9. The micro-speaker of claim 1, wherein: still include the vibrating diaphragm subassembly, the vibrating diaphragm subassembly is connected the basin frame with the voice coil loudspeaker voice coil.
10. The micro-speaker of claim 1, wherein: the magnetic circuit component comprises a yoke, central magnetic steel, side magnetic steel, a central washer and a side washer, wherein the central magnetic steel and the side magnetic steel are respectively arranged on the yoke, the central washer is arranged on the top surface of the central magnetic steel, and the side washer is fixed on the basin stand and covers the top surface of the side magnetic steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022047466.0U CN213462279U (en) | 2020-09-17 | 2020-09-17 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022047466.0U CN213462279U (en) | 2020-09-17 | 2020-09-17 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213462279U true CN213462279U (en) | 2021-06-15 |
Family
ID=76324729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022047466.0U Active CN213462279U (en) | 2020-09-17 | 2020-09-17 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213462279U (en) |
-
2020
- 2020-09-17 CN CN202022047466.0U patent/CN213462279U/en active Active
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Address after: 3 / F, building A5, No. 463, South Ring Road, Heyi community, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Weishi Technology Co.,Ltd. Country or region after: China Address before: 3 / F, building A5, No. 463, South Ring Road, Heyi community, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN SUNWAY ACOUSTICS TECHNOLOGY Co.,Ltd. Country or region before: China |