CN214591952U - Miniature loudspeaker - Google Patents
Miniature loudspeaker Download PDFInfo
- Publication number
- CN214591952U CN214591952U CN202120400883.0U CN202120400883U CN214591952U CN 214591952 U CN214591952 U CN 214591952U CN 202120400883 U CN202120400883 U CN 202120400883U CN 214591952 U CN214591952 U CN 214591952U
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- China
- Prior art keywords
- voice coil
- fixed part
- vibrating diaphragm
- micro
- basin frame
- Prior art date
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- 229910000831 Steel Inorganic materials 0.000 claims description 32
- 239000010959 steel Substances 0.000 claims description 32
- 238000009434 installation Methods 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000003292 glue Substances 0.000 description 6
- 239000000725 suspension Substances 0.000 description 5
- 241000239290 Araneae Species 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a micro loudspeaker, including basin frame, voice coil loudspeaker voice coil and vibration subassembly, the voice coil loudspeaker voice coil is located in the basin frame, the vibration subassembly includes vibrating diaphragm and centering piece, the vibrating diaphragm is located on the basin frame, the middle part region of vibrating diaphragm is equipped with the windowing, the vibrating diaphragm is equipped with bonding portion along the border of windowing, centering piece includes interior fixed part, cantilever and outer fixed part, the cantilever is connected interior fixed part and outer fixed part, interior fixed part is connected the voice coil loudspeaker voice coil, outer fixed part connects respectively the basin frame with the vibrating diaphragm, the vibrating diaphragm passes through bonding portion and the face bonding that the voice coil loudspeaker voice coil was kept away from to the interior fixed part, interior fixed part seals the windowing; the utility model provides a micro loudspeaker, novel structure, easily processing, production is old originally low, long service life.
Description
Technical Field
The utility model relates to a speaker technical field especially relates to a miniature speaker.
Background
A micro-speaker is an important acoustic component in portable electronic devices, which converts an acoustic electrical signal into a sound signal, and is an energy conversion device. A micro-speaker will typically include a vibrating assembly, which will typically include a diaphragm and a mid-paste.
In prior art, the paste adhesion sets up the one side of keeping away from the voice coil loudspeaker voice coil at the vibrating diaphragm, because of well paste and glue own possess certain thickness, so this kind of structure can lead to the surplus step-down in the vibration space of vibration subassembly, causes adverse effect to micro-speaker's acoustic performance.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a 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 basin frame, voice coil loudspeaker voice coil and vibration subassembly, the voice coil loudspeaker voice coil is located in the basin frame, the vibration subassembly includes vibrating diaphragm and centering piece, the vibrating diaphragm is located on the basin frame, the middle part region of vibrating diaphragm is equipped with windows, the vibrating diaphragm along the border of windowing is equipped with bonding portion, centering piece includes interior fixed part, cantilever and outer fixed part, the cantilever is connected interior fixed part and outer fixed part, interior fixed part is connected the voice coil loudspeaker voice coil, outer fixed part is connected respectively the basin frame with the vibrating diaphragm, the vibrating diaphragm passes through bonding portion with interior fixed part is kept away from the face bonding of voice coil loudspeaker voice coil, interior fixed part seals windowing.
Furthermore, the number of the cantilevers is four, and one ends of the four cantilevers are respectively connected with the corner of the inner fixing portion.
Further, the vibrating diaphragm still includes ring portion and installation department of rolling over, the portion of bonding the ring portion and installation department three is by interior consecutive to exterior, the installation department with outer fixed part is kept away from the one side of basin frame links to each other.
Furthermore, be equipped with the line of going out on the voice coil loudspeaker voice coil, be equipped with the pad on the centering piece, the line of going out is kept away from the one end of voice coil loudspeaker voice coil with the pad welding.
Further, the pad is arranged at the corner of the centering branch piece.
Furthermore, the centering support sheet is an FPC board.
Furthermore, the magnetic basin comprises a magnetic circuit assembly, wherein the magnetic circuit assembly is arranged on the basin frame, and one surface of the basin frame, which is far away from the vibrating diaphragm, is connected with the magnetic circuit assembly.
Furthermore, the magnetic circuit component comprises a magnetic cover and a magnetic steel component arranged on the magnetic cover, the magnetic steel component comprises central magnetic steel and edge magnetic steel, the edge magnetic steel surrounds the central magnetic steel, and a magnetic gap is formed between the central magnetic steel and the edge magnetic steel.
The beneficial effects of the utility model reside in that: the utility model provides a vibration subassembly, including the fixed part, the fixed part is provided with the internal fixation portion on the centering piece, this internal fixation portion links to each other with the vibrating diaphragm and seals the windowing of vibrating diaphragm, and this micro loudspeaker pastes the structure through the entity part at the internal fixation portion middle part with the centering piece in replacing the vibration subassembly among the prior art, and novel structure has increased the vibration space surplus of vibration subassembly effectively, can reduce the process of cutting of vibrating diaphragm moreover, does benefit to and improves production efficiency, reduction in production cost.
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 basin stand; 2. A voice coil; 3. Vibrating diaphragm;
31. windowing; 32. An adhesive portion; 33. A folded ring part;
34. an installation part; 4. A centering support; 41. An inner fixing portion;
42. a cantilever; 43. An outer fixing portion; 44. A glue containing groove;
45. a pad; 5. Entering and exiting the line; 6. 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.
Please refer to fig. 1 to 3, a micro speaker, including frame 1, voice coil 2 and vibration subassembly, voice coil 2 is located in frame 1, the vibration subassembly includes vibrating diaphragm 3 and centering disk 4, vibrating diaphragm 3 is located on frame 1, the middle part region of vibrating diaphragm 3 is equipped with windowing 31, vibrating diaphragm 3 along the border of windowing 31 is equipped with bonding portion 32, centering disk 4 includes interior fixed part 41, cantilever 42 and outer fixed part 43, cantilever 42 connects interior fixed part 41 and outer fixed part 43, interior fixed part 41 is connected voice coil 2, outer fixed part 43 is connected respectively frame 1 with vibrating diaphragm 3, vibrating diaphragm 3 through bonding portion 32 with interior fixed part 41 keeps away from the face bonding of voice coil 2, interior fixed part 41 seals windowing 31.
From the above description, the beneficial effects of the present invention are: be provided with interior fixed part 41 on centering branch piece 4, this interior fixed part 41 links to each other and seals vibrating diaphragm 3's windowing 31, and this micro loudspeaker is through the entity part at the interior fixed part 41 middle part with centering branch piece 4 replacing the vibration subassembly among the prior art paste the structure in, and novel structure has increased vibration subassembly's vibration space surplus effectively, can reduce the process of cutting of vibrating diaphragm 3 moreover, does benefit to and improves production efficiency, reduction in production cost.
Further, the number of the suspension arms 42 is four, and one ends of the four suspension arms 42 are connected to the corner portions of the inner fixing portion 41, respectively.
As can be seen from the above description, one end of each of the four cantilevers 42 is connected to a corner of the inner fixing portion 41, so that the centering disk 4 is stressed more uniformly, which is beneficial to reducing stress concentration and prolonging the service life of the micro-speaker.
Further, the vibrating diaphragm 3 further comprises a folded ring part 33 and an installation part 34, the bonding part 32, the folded ring part 33 and the installation part 34 three are sequentially connected from inside to outside, and the installation part 34 is far away from the outer fixing part 43 one surface of the basin stand 1 is connected.
As can be seen from the above description, the vibrating diaphragm 3 is disposed on the centering branch piece 4, and the vibrating diaphragm 3 is connected to the basin stand 1 through the centering branch piece 4.
Furthermore, be equipped with into and out line 5 on the voice coil loudspeaker voice coil 2, be equipped with pad 45 on the centering branch piece 4, go out into line 5 and keep away from the one end of voice coil loudspeaker voice coil 2 with pad 45 welding.
As can be seen from the above description, the voice coil 2 is electrically connected to the damper through the inlet/outlet line 5.
Further, the pad 45 is provided at a corner of the damper 4.
Further, the centering disk 4 is an FPC board.
Further, the magnetic basin comprises a magnetic circuit component 6, wherein the magnetic circuit component 6 is arranged on the basin frame 1, and one surface of the basin frame 1, which is far away from the vibrating diaphragm 3, is connected with the magnetic circuit component 6.
Further, the magnetic circuit assembly 6 comprises a magnetic cover and a magnetic steel assembly arranged on the magnetic cover, the magnetic steel assembly comprises central magnetic steel and edge magnetic steel, the edge magnetic steel surrounds the central magnetic steel, and a magnetic gap is formed between the central magnetic steel and the edge magnetic steel.
Example one
Referring to fig. 1 to fig. 3, a first embodiment of the present invention is: the utility model provides a micro loudspeaker, includes basin frame 1, voice coil loudspeaker voice coil 2 and vibration subassembly, voice coil loudspeaker voice coil 2 locates in the basin frame 1, the vibration subassembly includes vibrating diaphragm 3 and centering disk 4, and is specific, centering disk 4 is the FPC board, vibrating diaphragm 3 locates on the basin frame 1, the middle part region of vibrating diaphragm 3 is equipped with the 31 of windowing, the 31 of windowing is the rectangle, vibrating diaphragm 3 along the border of the 31 of windowing is equipped with bonding portion 32, centering disk 4 includes interior fixed part 41, cantilever 42 and outer fixed part 43, cantilever 42 connects interior fixed part 41 and outer fixed part 43, interior fixed part 41 is connected voice coil loudspeaker voice coil 2, outer fixed part 43 is connected respectively basin frame 1 with vibrating diaphragm 3, vibrating diaphragm 3 pass through bonding portion 32 with interior fixed part 41 keeps away from the face bonding of voice coil loudspeaker voice coil 2, interior fixed part 41 seals the 31 of windowing, the scheme fully utilizes the middle area of the FPC board, and the PI thickness is adjusted to obtain the performance consistent with that of the middle paste, so that the vibration space allowance is enhanced, the processing procedures are reduced, and the production cost is reduced.
Optionally, a plurality of glue containing grooves 44 are formed in the area, corresponding to the bonding portion 32, of the centering branch piece 4, the glue containing grooves 44 are arranged in an annular shape, preferably, the glue containing grooves 44 are arranged in an inclined manner, and the sum of the length and the size of the glue containing grooves 44 is large, so that the stability of bonding the centering branch piece 4 and the bonding portion 32 is further improved.
As shown in fig. 1, the number of the suspension arms 42 is four, and one ends of the four suspension arms 42 are respectively connected to the corner portions of the inner fixing portion 41, in this embodiment, the four suspension arms 42 are inclined in the counterclockwise direction; specifically, a transition region is provided between the cantilever 42 and the inner fixing portion 41, and a transition region is provided between the cantilever 42 and the outer fixing portion 43.
Specifically, the vibrating diaphragm 3 further comprises a folded ring part 33 and an installation part 34, the bonding part 32 is formed by sequentially connecting the folded ring part 33 and the installation part 34 three from inside to outside, and the installation part 34 is formed by connecting one surface of the basin stand 1 with the outer fixing part 43.
Further, be equipped with into line 5 on the voice coil loudspeaker voice coil 2, go out into line 5 and locate the bight of voice coil loudspeaker voice coil 2, be equipped with pad 45 on the spider 4, go out into line 5 and keep away from the one end of voice coil loudspeaker voice coil 2 with pad 45 welding, preferably, pad 45 is located the bight of spider 4, promptly pad 45 is close to go out into the leading-out position setting of line 5, it is further, correspond on the spider 4 the leading-out position of going out into line 5 is equipped with and keeps away the bit architecture.
Specifically, the magnetic circuit assembly 6 is further included, and in the present embodiment, the magnetic circuit assembly 6 is a five-magnetic-circuit system; the magnetic circuit component 6 is arranged on the basin frame 1, and one surface of the basin frame 1, which is far away from the vibrating diaphragm 3, is connected with the magnetic circuit component 6.
Specifically, the magnetic circuit assembly 6 comprises a magnetic cover and a magnetic steel assembly arranged on the magnetic cover, the magnetic steel assembly comprises central magnetic steel and edge magnetic steel, the edge magnetic steel surrounds the central magnetic steel, and a magnetic gap is formed between the central magnetic steel and the edge magnetic steel.
To sum up, the utility model provides a micro loudspeaker, novel structure, easily processing, low in production cost, long service life.
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 (8)
1. The utility model provides a micro loudspeaker, includes basin frame, voice coil loudspeaker voice coil and vibration subassembly, the voice coil loudspeaker voice coil is located in the basin frame, the vibration subassembly includes vibrating diaphragm and centering piece, the vibrating diaphragm is located on the basin frame, the middle part region of vibrating diaphragm is equipped with windows, the vibrating diaphragm along the border of windowing is equipped with bonding portion, centering piece includes interior fixed part, cantilever and outer fixed part, the cantilever is connected interior fixed part and outer fixed part, interior fixed part is connected the voice coil loudspeaker voice coil, outer fixed part is connected respectively the basin frame with the vibrating diaphragm, its characterized in that: the vibrating diaphragm is bonded with the surface of the inner fixing part, which is far away from the voice coil, through the bonding part, and the inner fixing part seals the windowing.
2. The micro-speaker of claim 1, wherein: the number of the cantilevers is four, and one ends of the four cantilevers are respectively connected with the corner of the inner fixing portion.
3. The micro-speaker of claim 1, wherein: the vibrating diaphragm still includes ring portion and installation department of rolling over, the portion of bonding roll over ring portion and the installation department three is by interior consecutive to exterior, the installation department with outer fixed part is kept away from the one side of basin frame links to each other.
4. The micro-speaker of claim 1, wherein: the voice coil is provided with an inlet and outlet line, the centering support piece is provided with a pad, and one end of the inlet and outlet line, which is far away from the voice coil, is welded with the pad.
5. The micro-speaker of claim 4, wherein: the welding pad is arranged at the corner of the centering support piece.
6. The micro-speaker of claim 1, wherein: the centering support sheet is an FPC board.
7. The micro-speaker of claim 1, wherein: the magnetic circuit component is arranged on the basin frame, and one surface of the basin frame, which is far away from the vibrating diaphragm, is connected with the magnetic circuit component.
8. The micro-speaker of claim 7, wherein: the magnetic circuit component comprises a magnetic cover and a magnetic steel component arranged on the magnetic cover, the magnetic steel component comprises central magnetic steel and edge magnetic steel, the edge magnetic steel surrounds the central magnetic steel, and a magnetic gap is formed between the central magnetic steel and the edge magnetic steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120400883.0U CN214591952U (en) | 2021-02-23 | 2021-02-23 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120400883.0U CN214591952U (en) | 2021-02-23 | 2021-02-23 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214591952U true CN214591952U (en) | 2021-11-02 |
Family
ID=78351301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120400883.0U Active CN214591952U (en) | 2021-02-23 | 2021-02-23 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214591952U (en) |
-
2021
- 2021-02-23 CN CN202120400883.0U patent/CN214591952U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
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 |