CN209845293U - Micro loudspeaker - Google Patents
Micro loudspeaker Download PDFInfo
- Publication number
- CN209845293U CN209845293U CN201920526745.XU CN201920526745U CN209845293U CN 209845293 U CN209845293 U CN 209845293U CN 201920526745 U CN201920526745 U CN 201920526745U CN 209845293 U CN209845293 U CN 209845293U
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- voice coil
- pad
- vibrating diaphragm
- bonding
- micro
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- 239000002184 metal Substances 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000005764 inhibitory process Effects 0.000 abstract description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 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 voice coil loudspeaker voice coil and main vibrating diaphragm, main vibrating diaphragm set up in on the side of voice coil loudspeaker voice coil, still include the auxiliary vibrating diaphragm, the auxiliary vibrating diaphragm set up in the voice coil loudspeaker voice coil is kept away from on the another side of main vibrating diaphragm. The auxiliary vibrating diaphragm is arranged on one side surface of the voice coil, which is far away from the main vibrating diaphragm, so that the vibration imbalance phenomenon of the voice coil can be effectively inhibited; the compliance inhibition effect of the secondary vibrating diaphragm on the vibration system is small, and the influence on the low-frequency performance of the loudspeaker is small; and the secondary diaphragm occupies small space and has low cost.
Description
Technical Field
The utility model relates to an acoustics equipment technical field especially relates to a miniature speaker.
Background
Present micro loudspeaker is mostly moving coil loudspeaker, and the voice coil loudspeaker voice coil in its structure can be swung in the magnetic circuit clearance of constituteing by magnet, china department and yoke when the drive of magnetic circuit, the unbalanced phenomenon of vibration easily appears, and the voice coil loudspeaker voice coil of square coiling is unilateral to have to hang the lead wire and the opposite side does not have, and the voice coil loudspeaker voice coil vibration receives to hang the extra pulling force of lead wire, can lead to the voice coil loudspeaker voice coil vibration unbalanced, makes micro loudspeaker appear the bad phenomenon of pure tone when carrying out the pronunciation broadcast.
At present, in order to reduce tone quality loss caused by unbalanced vibration of a voice coil, a fixed core supporting piece is adhered to one side of the voice coil, and the fixed core supporting piece plays a role in inhibiting unbalanced vibration of the voice coil and also plays a role in electrifying and conducting electricity. On one hand, the fixed chip support sheet is adhered to one side of the voice coil, and on the other hand, the voice coil wire inlet and outlet port is spot-welded on the fixed chip support sheet, which is a challenge to the production process of the existing micro-speaker. And decide the core branch piece and still can occupy partial space, can lose partial electroacoustic performance under the requirement of current miniaturized design, decide the core branch piece price comparatively expensive simultaneously, can increase product cost.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a micro speaker is provided, which can effectively suppress the unbalanced vibration of a voice coil and is low in cost.
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 and master vibration membrane, master vibration membrane set up in on the side of voice coil loudspeaker voice coil, still include the secondary vibrating diaphragm, the secondary vibrating diaphragm set up in the voice coil loudspeaker voice coil is kept away from on the another side of master vibrating diaphragm.
Furthermore, the voice coil type flowerpot further comprises a flowerpot frame and an annular washer, wherein the annular washer is arranged on the flowerpot frame, and the voice coil is arranged in the annular washer.
Furthermore, the voice coil comprises a first lead and a second lead, the voice coil is rectangular, and the outgoing direction of the first lead is opposite to the outgoing direction of the second lead.
The metal part is arranged in the basin frame, a first bonding pad and a second bonding pad are respectively arranged on the annular washer, the first bonding pad and the second bonding pad are respectively positioned on a pair of opposite angles of the annular washer, the first lead is connected with the first bonding pad, and the second lead is connected with the second bonding pad; a third bonding pad and a fourth bonding pad are respectively arranged on the basin frame, and the third bonding pad and the fourth bonding pad are positioned on the same side edge of the basin frame; one end of the metal piece is connected with the first bonding pad or the second bonding pad, and the other end of the metal piece is connected with the third bonding pad or the fourth bonding pad.
Furthermore, the number of the secondary diaphragms is two, and the two secondary diaphragms are respectively arranged on two opposite sides of the voice coil.
Furthermore, the annular washer, the metal piece and the basin frame are integrally formed by injection molding.
Further, the voice coil comprises a center washer, and the center washer is arranged in the voice coil.
Further, still include yoke and magnet steel component, the magnet steel component set up in on the yoke.
Further, the secondary vibrating diaphragm comprises a first bonding portion, an arc portion and a second bonding portion which are sequentially connected, the first bonding portion is fixedly connected with the voice coil, and the second bonding portion is fixedly connected with the basin frame.
The beneficial effects of the utility model reside in that: the auxiliary vibrating diaphragm is arranged on one side surface of the voice coil, which is far away from the main vibrating diaphragm, so that the vibration imbalance phenomenon of the voice coil can be effectively inhibited; the compliance inhibition effect of the secondary vibrating diaphragm on the vibration system is small, and the influence on the low-frequency performance of the loudspeaker is small; and the secondary diaphragm occupies small space and has low 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 schematic view of a partial structure of a micro-speaker according to a first embodiment of the present invention.
Description of reference numerals:
1. middle pasting; 2. a main diaphragm; 3. a voice coil; 31. a first lead; 32. a second lead; 4. a secondary diaphragm; 41. a first bonding portion; 42. an arc-shaped portion; 43. a second bonding portion; 5. a basin stand; 51. a third pad; 52. a fourth pad; 6. a ring washer; 61. a first pad; 62. a second pad; 7. a central washer;
8. a central magnet; 9. a side magnet; 10. a yoke; 11. a metal piece.
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.
The utility model discloses the most crucial design lies in: set up the secondary vibrating diaphragm on the side of voice coil loudspeaker voice coil far away from main vibrating diaphragm, can effectively restrain the unbalanced phenomenon of voice coil loudspeaker voice coil vibration.
Referring to fig. 1 and 2, a micro speaker includes a voice coil 3 and a main diaphragm 2, the main diaphragm 2 is disposed on one side surface of the voice coil 3, and further includes an auxiliary diaphragm 4, and the auxiliary diaphragm 4 is disposed on the other side surface of the voice coil 3 away from the main diaphragm 2.
From the above description, the beneficial effects of the present invention are: the auxiliary vibrating diaphragm is arranged on one side surface of the voice coil, which is far away from the main vibrating diaphragm, so that the vibration imbalance phenomenon of the voice coil can be effectively inhibited; the compliance inhibition effect of the secondary vibrating diaphragm on the vibration system is small, and the influence on the low-frequency performance of the loudspeaker is small; and the secondary diaphragm occupies small space and has low cost. The main vibrating diaphragm and the auxiliary vibrating diaphragm can be bonded on two side faces of the voice coil through the bonding layers.
Further, the voice coil device further comprises a basin frame 5 and an annular washer 6, wherein the annular washer 6 is arranged on the basin frame 5, and the voice coil 3 is arranged in the annular washer 6.
Further, the voice coil 3 includes a first lead 31 and a second lead 32, the voice coil 3 is rectangular, and the direction of the first lead 31 is opposite to the direction of the second lead 32.
From the above description, it can be known that the two lead wire outlet directions of the voice coil are opposite, which is beneficial to inhibiting the vibration imbalance of the voice coil and is beneficial to bonding the secondary diaphragm.
Further, the flowerpot further comprises a metal piece 11, the metal piece 11 is arranged in the flowerpot frame 5, a first bonding pad 61 and a second bonding pad 62 are respectively arranged on the annular washer 6, the first bonding pad 61 and the second bonding pad 62 are respectively positioned on a pair of opposite corners of the annular washer 6, the first lead 31 is connected with the first bonding pad 61, and the second lead 32 is connected with the second bonding pad 62; a third pad 51 and a fourth pad 52 are respectively arranged on the frame 5, and the third pad 51 and the fourth pad 52 are positioned on the same side edge of the frame 5; one end of the metal part 11 is connected to the first pad 61 or the second pad 62, and the other end of the metal part 11 is connected to the third pad 51 or the fourth pad 52.
As can be seen from the above description, the metal member mainly plays a role of conduction, and the micro-speaker can conduct electricity through the two pads located on the same side of the frame.
Further, the number of the secondary diaphragms 4 is two, and the two secondary diaphragms 4 are respectively arranged on two opposite sides of the voice coil 3.
Further, the annular washer 6, the metal piece 11 and the basin stand 5 are integrally formed by injection molding.
Further, the voice coil loudspeaker further comprises a center washer 7, wherein the center washer 7 is arranged in the voice coil 3.
Further, still include yoke 10 and magnet steel component, the magnet steel component set up in on the yoke 10.
Further, the sub-diaphragm 4 includes a first bonding portion 41, an arc portion 42 and a second bonding portion 43 that are connected in sequence, the first bonding portion 41 is fixedly connected with the voice coil 3, and the second bonding portion 43 is fixedly connected with the frame 5.
Referring to fig. 1 and fig. 2, a first embodiment of the present invention is:
the utility model provides a micro loudspeaker, includes in paste 1, main vibrating diaphragm 2, voice coil loudspeaker voice coil 3, auxiliary vibrating diaphragm 4, basin frame 5, annular china department 6, central china department 7, magnetic steel component and yoke 10, in paste 1 set up in main vibrating diaphragm 2, main vibrating diaphragm 2 set up in on the side of voice coil loudspeaker voice coil 3, auxiliary vibrating diaphragm 4 set up in on voice coil loudspeaker voice coil 3 keeps away from the another side of main vibrating diaphragm 2, in this embodiment, main vibrating diaphragm 2 and auxiliary vibrating diaphragm 4 can bond on the both sides face of voice coil loudspeaker voice coil 3 through the adhesive linkage. The voice coil 3 is rectangular, the number of the secondary diaphragms 4 is two, and the two secondary diaphragms 4 are respectively arranged on two opposite sides of the voice coil 3. The sub-diaphragm 4 comprises a first bonding portion 41, an arc portion 42 and a second bonding portion 43 which are sequentially connected, the first bonding portion 41 is fixedly connected with the voice coil 3, and the second bonding portion 43 is fixedly connected with the frame 5. The annular washer 6 is arranged on the basin frame 5, and the voice coil 3 is arranged in the annular washer 6. The voice coil 3 comprises a first lead 31 and a second lead 32, the voice coil 3 is rectangular, and the outgoing direction of the first lead 31 is opposite to the outgoing direction of the second lead 32. The shape of annular china department 6 is similar rectangle, be equipped with first pad 61 and second pad 62 on the annular china department 6 respectively, first pad 61 and second pad 62 are located respectively a pair of diagonal of annular china department 6, first lead wire 31 with first pad 61 is connected, second lead wire 32 with second pad 62 is connected, promptly, first lead wire 31 welds on first pad 61, and second lead wire 32 welds on second pad 62. The basin stand 5 is provided with a third pad 51 and a fourth pad 52, and the third pad 51 and the fourth pad 52 are located on the same side of the basin stand 5. The micro-speaker further comprises a metal piece 11, the metal piece 11 is arranged in the basin frame 5, one end of the metal piece 11 is connected with the first bonding pad 61 or the second bonding pad 62, and the other end of the metal piece 11 is connected with the third bonding pad 51 or the fourth bonding pad 52. In this embodiment, one end of the metal component 11 is connected to the first pad 61, the other end of the metal component 11 is connected to the third pad 51, the metal component 11, the first pad 61 and the third pad 51 may be integrally formed, and the second pad 62 and the fourth pad 52 may be integrally formed. Preferably, the annular washer 6, the metal piece 11 and the basin stand 5 are integrally formed by injection molding. In this embodiment, the center washer 7 is disposed in the voice coil 3, and the magnetic steel assembly is disposed on the yoke 10. The magnetic steel component comprises a central magnet 8 and two edge magnets 9, wherein the two edge magnets 9 are respectively arranged on two opposite sides of the central magnet 8. Since the sub-diaphragm 4 is smaller in size than the damper, the sizes of the center magnet 8 and the side magnets 9 can be increased to improve the electroacoustic performance.
In summary, according to the micro speaker provided by the utility model, the secondary vibrating diaphragm can effectively suppress the unbalanced vibration of the voice coil, and has little influence on the low frequency performance of the speaker; and the secondary diaphragm occupies small space and has low cost.
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. A micro loudspeaker comprises a voice coil and a main vibrating diaphragm, wherein the main vibrating diaphragm is arranged on one side surface of the voice coil;
the voice coil is arranged in the annular washer.
2. The micro-speaker of claim 1, wherein the voice coil includes a first lead and a second lead, the voice coil is rectangular in shape, and a direction of an outgoing line of the first lead is opposite to a direction of an outgoing line of the second lead.
3. The micro-speaker of claim 2, further comprising a metal member disposed within the frame, wherein the annular washer has a first pad and a second pad disposed thereon, the first pad and the second pad being disposed on a pair of opposite corners of the annular washer, respectively, the first lead being connected to the first pad, and the second lead being connected to the second pad; a third bonding pad and a fourth bonding pad are respectively arranged on the basin frame, and the third bonding pad and the fourth bonding pad are positioned on the same side edge of the basin frame; one end of the metal piece is connected with the first bonding pad or the second bonding pad, and the other end of the metal piece is connected with the third bonding pad or the fourth bonding pad.
4. The micro-speaker of claim 2, wherein the number of the sub-diaphragms is two, and the two sub-diaphragms are respectively disposed on two opposite sides of the voice coil.
5. The micro-speaker of claim 3, wherein the annular washer, the metal member, and the frame are integrally injection molded.
6. The micro-speaker of claim 1, further comprising a center washer disposed within the voice coil.
7. The microspeaker of claim 1 further comprising a yoke and a magnetic steel assembly, said magnetic steel assembly being disposed on said yoke.
8. The micro-speaker of claim 1, wherein the sub-diaphragm comprises a first bonding portion, an arc portion and a second bonding portion, the first bonding portion, the arc portion and the second bonding portion are sequentially connected, the first bonding portion is fixedly connected with the voice coil, and the second bonding portion is fixedly connected with the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920526745.XU CN209845293U (en) | 2019-04-17 | 2019-04-17 | Micro loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920526745.XU CN209845293U (en) | 2019-04-17 | 2019-04-17 | Micro loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209845293U true CN209845293U (en) | 2019-12-24 |
Family
ID=68912741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920526745.XU Active CN209845293U (en) | 2019-04-17 | 2019-04-17 | Micro loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209845293U (en) |
-
2019
- 2019-04-17 CN CN201920526745.XU patent/CN209845293U/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 | ||
| CP03 | Change of name, title or address |
Address after: 518000 No. 1013, West Ring Road, Shajing street, Bao'an District, Shenzhen, Guangdong Patentee after: Weishi Technology Co.,Ltd. Country or region after: China Address before: 518000 No. 1013, West Ring Road, Shajing street, Bao'an District, Shenzhen, Guangdong Patentee before: SHENZHEN SUNWAY ACOUSTICS TECHNOLOGY Co.,Ltd. Country or region before: China |