CN213586259U - Miniature loudspeaker - Google Patents
Miniature loudspeaker Download PDFInfo
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- CN213586259U CN213586259U CN202022347460.5U CN202022347460U CN213586259U CN 213586259 U CN213586259 U CN 213586259U CN 202022347460 U CN202022347460 U CN 202022347460U CN 213586259 U CN213586259 U CN 213586259U
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- voice coil
- micro
- speaker
- coil
- basin frame
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Abstract
The utility model discloses a micro loudspeaker, include supporting component, basin frame and be located the voice coil loudspeaker voice coil of basin frame, the supporting component is including consecutive interior fixed part, connecting portion and outer fixed part, outer fixed part is fixed on the basin frame, be equipped with step portion on the lateral wall of voice coil loudspeaker voice coil, at least some of interior fixed part is fixed on the step face of step portion. The voice coil loudspeaker voice coil outside sets up the step portion that is used for installing fixed support component, has increased the interval between the bottom surface of voice coil loudspeaker voice coil and support component connection region and the magnetic shield for miniature speaker is when carrying out big amplitude vibration, and support component can not bump with the magnetic shield, does benefit to the production of avoiding the noise, improves miniature speaker's acoustic performance, simultaneously, can prolong support component's life, reinforcing user experience.
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 on sound quality and loudness, the requirements on the height of the micro-speaker are also increasingly thinner, and the requirements on the amplitude are also increasingly greater.
Promote the tone quality and the loudness that the amplitude can promote micro loudspeaker, prior art, the scheme of promoting the amplitude is: the supporting component is added to restrain the polarization of the voice coil, so that the effect of improving the amplitude is achieved. However, the support component is fixed at the lower extreme of voice coil loudspeaker voice coil, can occupy the lower vibration space (the distance of voice coil loudspeaker voice coil bottom to magnetic shield) of voice coil loudspeaker voice coil to lead to the unable very effectual promotion of amplitude of miniature loudspeaker, restrict the development of the bigger amplitude of miniature loudspeaker, simultaneously the annular deformation portion is rolled over to support component's vice membrane, and is less with the clearance of magnetic shield, and the amplitude increases, can lead to the book of vice membrane portion and magnetic shield to bump, produces the noise, influences miniature loudspeaker's acoustic performance.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a large-amplitude micro-speaker having excellent acoustic performance is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a micro loudspeaker, includes supporting component, basin frame and is located the voice coil loudspeaker voice coil of basin frame, the supporting component is including consecutive interior fixed part, connecting portion and outer fixed part, outer fixed part is fixed on the basin frame, be equipped with step portion on the lateral wall of voice coil loudspeaker voice coil, at least some of interior fixed part is fixed on the step face of step portion.
Further, the support member includes a centering disk and/or a sub-membrane.
Further, step portion intercommunication the top surface of voice coil loudspeaker voice coil, the step face is close to the bottom surface setting of voice coil loudspeaker voice coil.
Further, the step portion communicates with a bottom surface of the voice coil.
Further, the depth of the step part is greater than or equal to the thickness of the inner fixing part.
Further, the connection position of the supporting part and the voice coil is positioned at the side edge and/or the corner of the voice coil.
Furthermore, the cross section of the voice coil comprises at least two rows of coil cross sections, and the width of the step surface is greater than or equal to the width of one row of coil cross sections.
Further, the cross section of the voice coil comprises four rows of coil cross sections, and the width of the step surface is equal to the width of one, two or three rows of the coil cross sections.
Further, the voice coil loudspeaker comprises a magnetic circuit assembly connected with the frame, and a magnetic gap used for accommodating the voice coil is formed in the magnetic circuit assembly.
Further, still include the connection the basin frame with the vibrating diaphragm subassembly of voice coil loudspeaker voice coil.
The beneficial effects of the utility model reside in that: the voice coil loudspeaker voice coil outside sets up the step portion that is used for installing fixed support component, has increased the interval between the bottom surface of voice coil loudspeaker voice coil and support component connection region and the magnetic shield for miniature speaker is when carrying out big amplitude vibration, and support component can not bump with the magnetic shield, does benefit to the production of avoiding the noise, improves miniature speaker's acoustic performance, simultaneously, can prolong support component's life, reinforcing user experience.
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;
fig. 4 is a schematic structural diagram of a partial structure of a micro-speaker according to a first embodiment of the present invention;
fig. 5 is a schematic structural diagram of a portion of a micro-speaker with another structure according to a first embodiment of the present invention;
fig. 6 is a schematic structural diagram of a part of a micro-speaker with another structure according to a first embodiment of the present invention;
fig. 7 is a schematic cross-sectional view of a voice coil in a micro-speaker according to a first embodiment of the present invention;
fig. 8 is a schematic cross-sectional view of a voice coil in a micro-speaker with another structure according to a first embodiment of the present invention;
fig. 9 is a schematic cross-sectional view of a voice coil in a micro-speaker with another structure according to a first embodiment of the present invention;
fig. 10 is a schematic cross-sectional view of a voice coil in a micro-speaker with another structure according to a first embodiment of the present invention;
fig. 11 is a schematic cross-sectional view of a voice coil in a micro-speaker with another structure according to a first embodiment of the present invention;
fig. 12 is a schematic cross-sectional view of a voice coil in a micro-speaker with another structure according to a first embodiment of the present invention.
Description of reference numerals:
1. a basin stand;
2. a magnetic circuit assembly;
3. a diaphragm assembly;
4. a voice coil; 41. a step portion; 42. a step surface;
5. a support member; 51. an inner fixing portion; 52. a connecting portion; 53. an outer fixing portion; 54. a centering support; 55. and (4) a secondary membrane.
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 12, a micro speaker includes a supporting member 5, a frame 1, and a voice coil 4 located in the frame 1, where the supporting member 5 includes an inner fixing portion 51, a connecting portion 52, and an outer fixing portion 53 connected in sequence, the outer fixing portion 53 is fixed on the frame 1, a step portion 41 is disposed on an outer side wall of the voice coil 4, and at least a portion of the inner fixing portion 51 is fixed on a step surface 42 of the step portion 41.
From the above description, the beneficial effects of the present invention are: the step portion 41 that is used for installing fixed support component 5 is set up in the voice coil 4 outside, has increased the interval between the bottom surface of voice coil 4 and support component 5 connection region and the magnetic shield for miniature speaker is when carrying out big amplitude vibration, and support component 5 can not bump with the magnetic shield, does benefit to the production of avoiding the noise, improves miniature speaker's acoustic performance, simultaneously, can prolong support component 5's life, reinforcing user experience.
Further, the support member 5 includes a centering chip 54 and/or a sub-film 55.
As can be seen from the above description, the support members 5 have a wide variety of types and combinations, which is beneficial to enrich the diversity of the micro-speakers.
Further, the step 41 communicates with the top surface of the voice coil 4, and the step surface 42 is disposed near the bottom surface of the voice coil 4.
As can be seen from the above description, the top of the voice coil 4 is supported by the diaphragm assembly 3, and the bottom of the voice coil 4 is supported by the support member 5, so that the polarization phenomenon of the voice coil 4 is effectively improved, which is beneficial to further improving the acoustic performance of the micro-speaker.
Further, the step 41 communicates with the bottom surface of the voice coil 4.
As can be seen from the above description, the step portion 41 can be disposed in various ways, and can be set as required by the manufacturer.
Further, the depth of the step portion 41 is greater than or equal to the thickness of the inner fixing portion 51.
As can be seen from the above description, the depth of the step portion 41 is greater than or equal to the thickness of the inner fixing portion 51, so that the end of the inner fixing portion 51 can be completely accommodated in the step portion 41, and the height of the voice coil 4 and the amplitude of the micro-speaker can be conveniently designed by developers.
Further, the connection between the support member 5 and the voice coil 4 is located at the side and/or corner of the voice coil 4.
As can be seen from the above description, the connection positions where the voice coil 4 can be connected to the support member 5 are numerous, which is beneficial to enrich the diversity of the micro-speaker.
Further, the cross section of the voice coil 4 includes at least two rows of coil cross sections, and the width of the step surface 42 is greater than or equal to the width of one row of coil cross sections.
As can be seen from the above description, the stepped surface 42 has a sufficient area to be connected to the support member 5, which is advantageous for ensuring the connection force between the voice coil 4 and the support member 5, thereby ensuring the structural stability of the micro-speaker.
Further, the cross section of the voice coil 4 includes four rows of coil sections, and the width of the step surface 42 is equal to the width of one, two or three rows of the coil sections.
As can be seen from the above description, the width of the step surface 42 can be adjusted by fine-tuning the winding method of the voice coil 4, and the operation is simple.
Further, the voice coil loudspeaker comprises a magnetic circuit assembly 2 connected with the frame 1, wherein the magnetic circuit assembly 2 is provided with a magnetic gap for accommodating the voice coil 4.
Further, the voice coil loudspeaker further comprises a diaphragm component 3 which is used for connecting the basin frame 1 and the voice coil 4.
Example one
Referring to fig. 1 to 12, a first embodiment of the present invention is: a micro speaker is suitable for electronic products such as mobile phones, tablet computers, video cameras and the like.
Referring to fig. 1 to 4, the micro-speaker includes a frame 1, a magnetic circuit assembly 2, a diaphragm assembly 3, a voice coil 4 and a support member 5, wherein the magnetic circuit assembly 2 and the diaphragm assembly 3 are respectively fixed on the frame 1, the voice coil 4 is connected to the diaphragm assembly 3 and is located in the frame 1, and the magnetic circuit assembly 2 forms a magnetic gap for accommodating the voice coil 4; the support component 5 comprises an inner fixing part 51, a connecting part 52 and an outer fixing part 53 which are sequentially connected, the outer fixing part 53 is fixed on the basin frame 1, a step part 41 is arranged on the outer side wall of the voice coil 4, at least one part of the inner fixing part 51 is fixed on a step surface 42 of the step part 41, and preferably the step part 41 is formed in the winding process of the voice coil 4.
As shown in fig. 4, in the present embodiment, the supporting member 5 is a combination structure of a damper 54 and a secondary membrane 55, and specifically, both ends of the secondary membrane 55 are fixed on the damper 54. Of course, it is also possible that the support member 5 comprises only a centring disk 54 (as shown in fig. 5) or only a secondary membrane 55 (as shown in fig. 6).
Referring to fig. 7 to 12, in detail, the step 41 communicates with the top surface or the bottom surface of the voice coil 4, and when the step 41 communicates with the top surface of the voice coil 4, the step surface 42 is disposed close to the bottom surface of the voice coil 4 (as shown in fig. 11 and 12); when the step portion 41 communicates with the bottom surface of the voice coil 4, the depth of the step portion 41 is preferably greater than or equal to the thickness of the inner fixing portion 51 (as shown in fig. 3), and it is easily understood that the depth of the step portion 41 may be smaller than the thickness of the inner fixing portion 51.
Referring to fig. 4, the connection point of the support member 5 and the voice coil 4 is located at the side and/or corner of the voice coil 4. In order to reduce the difficulty of assembling the micro-speaker, the micro-speaker of the present embodiment is provided with the support members 5 only at the four corners of the voice coil 4, and in other embodiments, the support members 5 may be provided only at the long axis side and/or the short axis side of the voice coil 4.
Because the voice coil 4 is formed by winding a cable, and the step part 41 is formed in the winding process of the voice coil 4, the cross section of the voice coil 4 includes at least two rows of coil cross sections, and the width of the step surface 42 is greater than or equal to the width of one row of coil cross sections. Alternatively, as shown in fig. 7 to 9, the cross section of the voice coil 4 includes four rows of coil sections, and the width of the step surface 42 is equal to the width of one, two or three rows of the coil sections. It will be readily appreciated that the cross-section of the voice coil 4 may also include more rows of coil cross-sections, such as five rows of coil cross-sections (as shown in fig. 10), etc.
To sum up, the utility model provides a micro loudspeaker does not have the noise and can realize big amplitude, and acoustic performance is good, long service life, and user experience 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 supporting component, basin frame and is located the voice coil loudspeaker voice coil of basin frame, supporting component is including consecutive interior fixed part, connecting portion and outer fixed part, outer fixed part is fixed on the basin frame, its characterized in that: the outer side wall of the voice coil is provided with a step part, and at least one part of the inner fixing part is fixed on the step surface of the step part.
2. The micro-speaker of claim 1, wherein: the support member includes a spider and/or a secondary membrane.
3. The micro-speaker of claim 1, wherein: the step portion intercommunication the top surface of voice coil loudspeaker voice coil, the step face is close to the bottom surface setting of voice coil loudspeaker voice coil.
4. The micro-speaker of claim 1, wherein: the step portion communicates with a bottom surface of the voice coil.
5. The micro-speaker of claim 4, wherein: the depth of the step part is greater than or equal to the thickness of the inner fixing part.
6. The micro-speaker of claim 1, wherein: the connection position of the supporting part and the voice coil is positioned at the side edge and/or the corner of the voice coil.
7. The micro-speaker of claim 1, wherein: the cross section of the voice coil comprises at least two rows of coil cross sections, and the width of the step surface is larger than or equal to that of one row of coil cross sections.
8. The micro-speaker of claim 7, wherein: the cross section of the voice coil comprises four rows of coil cross sections, and the width of the step surface is equal to the width of one row, two rows or three rows of the coil cross sections.
9. The micro-speaker of claim 1, wherein: the voice coil is characterized by further comprising a magnetic circuit assembly connected with the frame, and a magnetic gap used for accommodating the voice coil is formed in the magnetic circuit assembly.
10. The micro-speaker of claim 1, wherein: the voice coil is connected with the basin frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022347460.5U CN213586259U (en) | 2020-10-20 | 2020-10-20 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022347460.5U CN213586259U (en) | 2020-10-20 | 2020-10-20 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213586259U true CN213586259U (en) | 2021-06-29 |
Family
ID=76527461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022347460.5U Active CN213586259U (en) | 2020-10-20 | 2020-10-20 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213586259U (en) |
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2020
- 2020-10-20 CN CN202022347460.5U patent/CN213586259U/en active Active
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Address after: 413000 building K1, standardized workshop, East Industrial Park, high tech Zone, Yiyang City, Hunan Province Patentee after: Weishi Technology Co.,Ltd. Country or region after: China Address before: 413000 building K1, standardized workshop, East Industrial Park, high tech Zone, Yiyang City, Hunan Province Patentee before: Yiyang Xinwei Acoustic Technology Co.,Ltd. Country or region before: China |