CN218634267U - Large-amplitude micro loudspeaker - Google Patents
Large-amplitude micro loudspeaker Download PDFInfo
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- CN218634267U CN218634267U CN202222286551.1U CN202222286551U CN218634267U CN 218634267 U CN218634267 U CN 218634267U CN 202222286551 U CN202222286551 U CN 202222286551U CN 218634267 U CN218634267 U CN 218634267U
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Abstract
The utility model discloses a large-amplitude micro loudspeaker, which is characterized in that the loudspeaker comprises a basin frame, and a vibration component, a magnetic circuit component and a supporting component which are respectively arranged on the basin frame, wherein the vibration component comprises a vibration diaphragm and a voice coil, the vibration diaphragm is arranged at the top of the voice coil and is connected with the basin frame, the magnetic circuit component comprises a central magnetic steel, and the central magnetic steel is positioned at the inner side of the voice coil; the support component comprises an inner fixing part, a first deformation part, a middle fixing part, a second deformation part and an outer fixing part which are sequentially connected, the inner fixing part is connected with the central magnetic steel, the middle fixing part is connected with the voice coil, and the outer fixing part is connected with the basin stand; the supporting component can simultaneously support the voice coil from the inner side and the outer side of the voice coil, so that the polarization restraining effect of the voice coil is enhanced, and the amplitude is favorably improved; simultaneously can also the rational distribution first deformation portion with the volume of second deformation portion account for than, reduce the occupation of support component to voice coil loudspeaker voice coil outside space as far as possible, promote compact structure nature.
Description
Technical Field
The utility model relates to an acoustics device technical field especially relates to a miniature speaker of big amplitude.
Background
As a device capable of converting electric energy into sound energy, a 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.
In the prior art, in order to improve the amplitude of a loudspeaker, a support part is generally arranged on a basin frame and connected with a voice coil, so that the polarization of the voice coil is inhibited, and the effect of improving the amplitude is achieved; however, the existing supporting component is generally installed on the outer side of the voice coil, and the outer side of the voice coil also needs to be provided with an electric connecting piece (such as a lead) to realize the electric connection and conduction of the voice coil, so that the supporting component inevitably occupies the arrangement space of the electric connecting piece, and in order to meet the miniaturization requirement of the loudspeaker, the volume of the supporting component is generally designed to be smaller, so that the suppression effect on the polarization of the voice coil is undoubtedly weakened, and the improvement of the amplitude is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a large-amplitude micro-speaker is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: a large-amplitude micro loudspeaker comprises a frame, and a vibration assembly, a magnetic circuit assembly and a support component which are respectively arranged on the frame, wherein the vibration assembly comprises a vibrating diaphragm and a voice coil, the vibrating diaphragm is arranged at the top of the voice coil and connected with the frame, the magnetic circuit assembly comprises central magnetic steel, and the central magnetic steel is positioned on the inner side of the voice coil; the support component comprises an inner fixing part, a first deformation part, a middle fixing part, a second deformation part and an outer fixing part which are sequentially connected, the inner fixing part is connected with the central magnetic steel, the middle fixing part is connected with the voice coil, and the outer fixing part is connected with the frame.
Furthermore, the cross section of the first deformation part is arc-shaped.
Further, the first deformation portion protrudes toward a direction close to the diaphragm.
Further, the cross section of the second deformation part is arc-shaped.
Further, the second deformation part is convex toward a direction close to the diaphragm.
Furthermore, a fixing groove is formed in the central magnetic steel, and the inner fixing portion is installed in the fixing groove.
Furthermore, a central washer is arranged at the top of the central magnetic steel, and the inner fixing part is arranged on the central washer.
Further, still include centering piece, centering piece with the basin frame and the voice coil loudspeaker voice coil is connected, outer fixed part with well fixed part all install in centering piece.
Further, the inner fixing portion is mounted on the side wall of the central magnetic steel.
Further, the inner fixing portion is mounted on a side wall of the center washer.
Further, the outer fixing part is mounted on the side wall of the basin frame.
Further, the outer fixing portion is mounted on a side wall of the centering branch piece.
Furthermore, the middle fixing part is provided with a sinking groove, and the voice coil is installed in the sinking groove.
The beneficial effects of the utility model reside in that: the utility model provides a big amplitude micro loudspeaker has the characteristics that the amplitude is big, compact structure and novel structure, sets up outer fixed part and is connected with the basin frame, and interior fixed part is connected with central magnet steel for the support component can support the voice coil loudspeaker voice coil simultaneously from the inside and outside both sides of voice coil loudspeaker voice coil, has strengthened the suppression effect to the voice coil loudspeaker voice coil polarization, does benefit to the promotion of amplitude; simultaneously, the volume of the first deformation part and the volume of the second deformation part can be reasonably distributed, the occupation of the support component on the outer side space of the voice coil is reduced as much as possible, and the structure compactness is improved.
Drawings
Fig. 1 is an exploded view of a large-amplitude micro-speaker according to a first embodiment of the present invention;
fig. 2 is a schematic structural view of a large-amplitude micro-speaker according to a first embodiment of the present invention;
fig. 3 is a schematic cross-sectional structure view of a large-amplitude micro-speaker according to a first embodiment of the present invention;
FIG. 4 is a detail view at A of FIG. 3;
fig. 5 is a schematic view of a partial cross-sectional structure of a large-amplitude micro-speaker according to a second embodiment of the present invention;
fig. 6 is a schematic partial cross-sectional structure view of a large-amplitude micro-speaker according to a third embodiment of the present invention;
fig. 7 is a schematic view of a partial cross-sectional structure of a large-amplitude micro-speaker according to a fourth embodiment of the present invention;
fig. 8 is a schematic partial cross-sectional structure view of a large-amplitude micro speaker according to a fifth embodiment of the present invention;
fig. 9 is a schematic view of a partial cross-sectional structure of a large-amplitude micro-speaker according to a sixth embodiment of the present invention.
Description of reference numerals:
1. a vibrating assembly; 11. vibrating diaphragm; 12. a ball top; 13. a voice coil; 2. a basin stand; 3. a centering support; 4. a central washer; 5. central magnetic steel; 51. fixing grooves; 6. a support member; 61. an inner fixing portion; 62. a first deformation section; 63. a middle fixing part; 64. a second deformation part; 65. an outer fixing portion; 7. edge magnetic steel; 8. and (4) a magnetic bowl.
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 4, a large-amplitude micro speaker includes a frame 2, and a vibration assembly 1, a magnetic circuit assembly, and a support member 6 respectively mounted on the frame 2, where the vibration assembly 1 includes a diaphragm 11 and a voice coil 13, the diaphragm 11 is mounted on the top of the voice coil 13 and connected to the frame 2, the magnetic circuit assembly includes a central magnetic steel 5, and the central magnetic steel 5 is located inside the voice coil 13; the support component 6 comprises an inner fixing part 61, a first deformation part 62, a middle fixing part 63, a second deformation part 64 and an outer fixing part 65 which are connected in sequence, the inner fixing part 61 is connected with the central magnetic steel 5, the middle fixing part 63 is connected with the voice coil 13, and the outer fixing part 65 is connected with the basin frame 2.
From the above description, the beneficial effects of the present invention are: the outer fixing part 65 is connected with the frame 2, and the inner fixing part 61 is connected with the central magnetic steel 5, so that the support part 6 can simultaneously support the voice coil 13 from the inner side and the outer side of the voice coil 13, the polarization restraining effect of the voice coil 13 is enhanced, and the amplitude is favorably improved; meanwhile, the volume ratio of the first deformation part 62 to the second deformation part 64 can be reasonably distributed, the occupation of the support component 6 to the space outside the voice coil 13 is reduced as much as possible, and the structural compactness is improved.
Further, the first strain portion 62 has a circular arc-shaped cross section.
As can be seen from the above description, the first deformation portion 62 is configured in a circular arc shape, so that the first deformation portion 62 has sufficient elasticity, and the shape of the first deformation portion 62 can be specifically configured according to the actual application requirement.
Further, the first deformation portion 62 is convex toward the direction of approaching the diaphragm 11.
As can be seen from the above description, the first deformation portion 62 protrudes toward the direction close to the diaphragm 11, so as to avoid the space at the bottom of the voice coil 13, which is beneficial to increasing the amplitude.
Further, the second deformed portion 64 has a circular arc-shaped cross section.
As can be seen from the above description, the second deformation portion 64 is configured in a circular arc shape, which ensures that the second deformation portion 64 has sufficient elasticity, and the shape of the first deformation portion 62 can be configured according to the actual application requirement.
Further, the second deformation portion 64 is convex toward the direction of approaching the diaphragm 11.
As can be seen from the above description, the second deformation portion 64 protrudes toward the direction close to the diaphragm 11, so as to avoid the space at the bottom of the voice coil 13, which is beneficial to increasing the amplitude.
Further, the center magnetic steel 5 is provided with a fixing groove 51, and the inner fixing portion 61 is installed in the fixing groove 51.
As apparent from the above description, the fixing groove 51 facilitates installation of the supporting member 6, facilitating improvement of structural stability.
Furthermore, a central washer 4 is arranged at the top of the central magnetic steel 5, and the inner fixing part 61 is mounted on the central washer 4.
As can be seen from the above description, the inner fixing portion 61 is mounted on the central washer 4, so that the supporting member 6 moves upward as a whole, and the space at the bottom of the voice coil 13 can be effectively avoided, which is favorable for increasing the amplitude.
Further, still include centering branch piece 3, centering branch piece 3 with basin frame 2 and voice coil 13 is connected, outer fixed part 65 and well fixed part 63 all install in centering branch piece 3.
As can be seen from the above description, the damper 3 can be electrically connected to the voice coil 13, and can also suppress polarization of the voice coil 13, which is beneficial to increase amplitude.
Further, the inner fixing portion 61 is mounted on a side wall of the central magnetic steel 5.
As can be seen from the above description, the inner fixing portion 61 is mounted on the side wall of the central magnetic steel 5, so that the mounting is convenient, the design difficulty of the supporting component 6 is reduced, the inner fixing portion 61 and the central magnetic steel 5 can be ensured to have a sufficient contact area, and the compactness of the structure is improved.
Further, the middle fixing portion 63 is provided with a sinking groove, and the voice coil 13 is installed in the sinking groove.
As can be seen from the above description, the middle fixing portion 63 is provided with a sunken groove for accommodating the voice coil 13, so that the positions of the first deformation portion and the second deformation portion can be raised, and the stability of the connection between the middle fixing portion 63 and the voice coil 13 can be improved.
Example one
Referring to fig. 1 to 4, a first embodiment of the present invention is: a large-amplitude micro speaker is used for converting electric energy into sound energy and applied to microelectronic equipment such as smart phones, camcorders, cameras and notebook computers, and comprises a basin frame 2, a vibration assembly 1, a magnetic circuit assembly and a supporting component 6 which are respectively arranged on the basin frame 2, wherein the vibration assembly 1 comprises a vibration diaphragm 11 and a voice coil 13, the vibration diaphragm 11 is arranged on the top of the voice coil 13 and connected with the basin frame 2, the magnetic circuit assembly comprises a central magnetic steel 5, and the central magnetic steel 5 is positioned on the inner side of the voice coil 13; the supporting component 6 comprises an inner fixing part 61, a first deformation part 62, a middle fixing part 63, a second deformation part 64 and an outer fixing part 65 which are connected in sequence, and the supporting component 6 is of an integrally formed integrated structure; the inner fixing part 61 is connected with the central magnetic steel 5, the middle fixing part 63 is connected with the voice coil 13, and the outer fixing part 65 is connected with the frame 2; specifically, the vibrating diaphragm 11 is further provided with a dome 12, the voice coil 13 is connected with the dome 12, the magnetic circuit assembly further comprises a magnetic bowl 8 and edge magnetic steel 7, the magnetic bowl 8 is connected with the basin frame 2, the center magnetic steel 5 is installed in the center of the magnetic bowl 8, the top of the center magnetic steel 5 is further provided with a center washer 4, the edge magnetic steel 7 is installed on the magnetic bowl 8 and located on the outer side of the center magnetic steel 5, a magnetic circuit gap is formed between the edge magnetic steel 7 and the center magnetic steel 5, and the voice coil 13 is located in the magnetic circuit gap.
In detail, the cross section of the first deformation part 62 is arc-shaped, so that the first deformation part 62 has enough elasticity; the second deformation part 64 has a circular arc cross section, so that the second deformation part 64 has sufficient elasticity, and when the voice coil 13 vibrates, the middle fixing part 63 is made to vibrate up and down along with the voice coil 13 under the elastic action of the first deformation part 62 and the second deformation part 64; specifically, in this embodiment, the supporting member 6 is a sub-diaphragm, the number of the sub-diaphragms is four, and four sub-diaphragms are respectively mounted at four corner positions of the voice coil 13 and the central magnetic steel 5 (as shown in fig. 2); in addition, in some other embodiments, the supporting component 6 may also be a metal elastic sheet, which may be specifically set according to actual application requirements, which is not described herein.
With reference to fig. 3 and fig. 4, in this embodiment, the frame 2 is further provided with a damper 3 connected to the voice coil 13, the damper 3 is adhered to the bottom of the voice coil 13, the damper 3 is provided with a pad, and the pad is used for being welded to a lead on the voice coil 13, so as to achieve electrical connection between an external component and the voice coil 13, and meanwhile, the damper 3 can also suppress polarization of the voice coil 13, which is beneficial to improving amplitude; specifically, the outer fixing portion 65 and the middle fixing portion 63 are respectively bonded to the bottom of the damper 3; the central magnetic steel 5 is provided with a fixing groove 51, and the inner fixing portion 61 is installed in the fixing groove 51.
In addition, in some other embodiments, the inner fixing portion 61 is installed on the side wall of the central magnetic steel 5, so that the installation is convenient, the design difficulty of the supporting component 6 is reduced, the sufficient contact area between the inner fixing portion 61 and the central magnetic steel 5 can be ensured, and the compactness of the structure is improved.
Example two
Referring to fig. 5, the second embodiment of the present invention is a further improvement of the central washer 4 on the basis of the first embodiment, and the difference from the first embodiment is that: the cross section area of the central washer 4 is larger than that of the central magnetic steel 5, and the inner fixing portion 61 is bonded at a position where the bottom of the central washer 4 exceeds the central magnetic steel 5.
EXAMPLE III
Referring to fig. 6, a difference between the third embodiment of the present invention and the first embodiment is: in the present embodiment, the centering chip 3 is not provided, but the electrical connection between the voice coil 13 and the external member is established by an external lead; therefore, the outer fixing portion 65 of the support member 6 is directly adhered to the bottom of the frame 2, and the middle fixing portion 63 is directly adhered to the bottom of the voice coil 13.
Example four
Referring to fig. 7, a fourth embodiment of the present invention is a further improvement of the supporting member 6 on the basis of the third embodiment, and is different from the third embodiment in that: first deformation portion 62 is towards being close to the direction of vibrating diaphragm 11 is protruding, second deformation portion 64 is towards being close to the direction of vibrating diaphragm 11 is protruding, so, can be right the space of voice coil 13 bottom dodges, does benefit to the promotion of amplitude.
EXAMPLE five
Referring to fig. 8, a fifth embodiment of the present invention is a further improvement of the supporting member on the basis of the third embodiment, and is different from the third embodiment in that: the first deformation portion 62 is convex toward the direction close to the diaphragm 11, and the second deformation portion 64 is convex toward the direction away from the diaphragm 11.
EXAMPLE six
Referring to fig. 9, a sixth embodiment of the present invention is a further improvement of the centering and fixing portion on the basis of the third embodiment, and the difference between the sixth embodiment of the present invention and the third embodiment of the present invention is: the middle fixing part 63 is provided with a sinking groove, the voice coil 13 is installed in the sinking groove, the sinking groove for accommodating the voice coil 13 is formed in the middle fixing part 63, the positions of the first deformation part and the second deformation part can be raised, and the connection stability of the middle fixing part 63 and the voice coil 13 can be improved.
To sum up, the utility model provides a miniature speaker of big amplitude has that the amplitude is big, compact structure, novel structure and structural style are abundant characteristics.
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. A large-amplitude micro loudspeaker is characterized by comprising a frame, and a vibration assembly, a magnetic circuit assembly and a supporting component which are respectively arranged on the frame, wherein the vibration assembly comprises a vibrating diaphragm and a voice coil, the vibrating diaphragm is arranged at the top of the voice coil and connected with the frame, the magnetic circuit assembly comprises central magnetic steel, and the central magnetic steel is positioned on the inner side of the voice coil; the support component comprises an inner fixing part, a first deformation part, a middle fixing part, a second deformation part and an outer fixing part which are sequentially connected, the inner fixing part is connected with the central magnetic steel, the middle fixing part is connected with the voice coil, and the outer fixing part is connected with the basin frame.
2. The micro-speaker as claimed in claim 1, wherein the first deformation portion has a circular arc-shaped cross section.
3. The large-amplitude micro-speaker as claimed in claim 2, wherein the first deformation portion is convex toward a direction close to the diaphragm.
4. The micro-speaker as claimed in claim 1, wherein the second deformation has a circular arc cross-section.
5. The large-amplitude microspeaker of claim 4, wherein the second deformation is convex toward the direction close to the diaphragm.
6. The loud-amplitude microspeaker of claim 1 wherein the center magnet steel is provided with a fixing groove, and the inner fixing portion is mounted in the fixing groove.
7. The miniature loudspeaker according to claim 1, wherein a central washer is provided on the top of said central magnetic steel, and said inner fixing portion is mounted on said central washer.
8. The micro large-amplitude speaker of claim 2, further comprising a damper, the damper being connected to the frame and the voice coil, the outer fixing portion and the middle fixing portion being mounted to the damper.
9. The loud speaker of claim 1 wherein the inner fixing portion is mounted to a side wall of the center magnet steel.
10. The loud-speaker of claim 1 wherein the middle fixing portion is provided with a recess, and the voice coil is mounted in the recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222286551.1U CN218634267U (en) | 2022-08-29 | 2022-08-29 | Large-amplitude micro loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222286551.1U CN218634267U (en) | 2022-08-29 | 2022-08-29 | Large-amplitude micro loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218634267U true CN218634267U (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222286551.1U Active CN218634267U (en) | 2022-08-29 | 2022-08-29 | Large-amplitude micro loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218634267U (en) |
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- 2022-08-29 CN CN202222286551.1U patent/CN218634267U/en active Active
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