CN213126447U - Three-magnetic-circuit large-amplitude micro loudspeaker - Google Patents
Three-magnetic-circuit large-amplitude micro loudspeaker Download PDFInfo
- Publication number
- CN213126447U CN213126447U CN202021731450.5U CN202021731450U CN213126447U CN 213126447 U CN213126447 U CN 213126447U CN 202021731450 U CN202021731450 U CN 202021731450U CN 213126447 U CN213126447 U CN 213126447U
- Authority
- CN
- China
- Prior art keywords
- voice coil
- magnetic
- amplitude
- speaker
- micro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a three magnetic circuit big amplitude micro loudspeaker, including magnetic circuit subassembly, basin frame, voice coil loudspeaker voice coil and the lead wire of drawing forth from voice coil loudspeaker voice coil bight position, the voice coil loudspeaker voice coil passes through the lead wire and is connected with the basin frame, magnetic circuit subassembly is including the magnetic bowl of connecting the basin frame, the central magnet steel that is located the magnetic bowl center and locate a set of edge magnet steel to the opposite side of magnetic bowl, another set of edge that is equipped with of magnetic bowl is to the edge, still be equipped with the skeleton on the voice coil loudspeaker voice coil, the skeleton includes the annular portion and the extension that link to each other, the annular portion connects the voice coil loudspeaker voice coil top, the extension is located; the utility model provides a three magnetic circuit large amplitude micro loudspeaker acoustic performance is good, structural stability is strong, satisfy the big amplitude of speaker, miniaturized development trend.
Description
Technical Field
The utility model relates to an acoustics device technical field especially relates to a three magnetic circuit large amplitude micro loudspeaker.
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 requirements of sound quality and loudness of microelectronic devices, the requirements of performance of micro-speakers are also increasing.
The prior scheme suitable for the large-amplitude loudspeaker mainly uses a centering disk part, and the centering disk needs higher process manufacturing flow and expensive materials, so the manufacturing process control difficulty is high, and the manufacturing cost is high.
Because of the size problem of the loudspeaker, the design of the centering disk is very thin and narrow, the thickness of the copper foil contained in the centering disk is usually 12 microns, and the design of the centering disk is provided with flaws or is not long enough, so that the centering disk is very easy to blacken and break to cause an open circuit.
The use of the flying lead solution can better improve the process stability and reduce the cost (without the need for a centering support piece part). The length of the suspended lead is a key factor for restricting the amplitude, and the small length of the lead can cause noise or fatigue disconnection. The larger the amplitude index of the speaker, the larger the length of the lead wire required to be suspended.
Use the big amplitude's of lead wire speaker scheme to design into three magnetism usually, make things convenient for the speaker lead wire unsettled and be qualified for the next round of competitions, just can have better antifatigue effect because sufficient unsettled length, for the validity that the volume that ensures the voice coil loudspeaker voice coil to be located the magnetic circuit clearance accounts for the ratio, generally can set up the turn-ups on the magnetism bowl, and the turn-ups then can occupy the unsettled space of lead wire, so, just contradict with the miniaturized development trend of speaker, therefore, in the three magnetic system that is equipped with the turn-ups, the turn-ups need be dodged to the lead wire, current lead wire is drawn forth from the voice coil loudspeaker voice coil four corners, cause the pulling force axle asymmetry easily.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: a three-magnetic circuit large-amplitude micro-speaker with stable acoustic performance is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a three magnetic circuit big amplitude miniature speaker, includes magnetic circuit component, basin frame, voice coil loudspeaker voice coil and certainly the lead wire that voice coil loudspeaker voice coil bight position was drawn forth, the voice coil loudspeaker voice coil passes through the lead wire with the basin frame is connected, magnetic circuit component is including connecting the magnetism bowl of basin frame, being located the central magnet steel of magnetism bowl central authorities and locating a set of edge magnet steel on the opposite side of magnetism bowl, another group of edge of magnetism bowl is equipped with the turn-ups to the edge, still be equipped with the skeleton on the voice coil loudspeaker voice coil, the skeleton is including continuous annular portion and extension, annular portion connects the voice coil loudspeaker voice coil top, the extension is located the turn-ups outside and with some adhesive bonding of lead wire.
Furthermore, the lead wire comprises a leading-out section, an adhesive part, a suspending section and a fixing section which are sequentially connected, wherein the adhesive part is connected with the extending part, the leading-out section is led out from the corner position of the voice coil, and the fixing section is connected with the basin frame.
Further, the flowerpot further comprises a first auxiliary film connected with the flowerpot frame and the bottom surface of the extending part respectively.
Further, the bottom surface of the first sub-film is higher than the bottom surface of the voice coil.
Furthermore, the voice coil loudspeaker also comprises a second auxiliary membrane which is respectively connected with the basin frame and the corner of the voice coil.
Further, the skeleton still includes connecting portion, the annular part is towards keeping away from the direction extension of voice coil loudspeaker voice coil forms connecting portion, connecting portion are kept away from the one end of annular part is followed the direction of height extension of voice coil loudspeaker voice coil forms the extension.
Furthermore, the connecting part is provided with a clearance area for avoiding the flanging.
Furthermore, the clearance area is a through hole formed in the position, corresponding to the flanging, of the connecting part, and the shape of the through hole is matched with that of the flanging.
Further, the skeleton still includes certainly the extension portion is kept away from the one end of connecting portion is towards keeping away from the bonding portion that the direction of voice coil loudspeaker voice coil extends, the lead wire bond in bonding portion.
Furthermore, the framework is of an integrated structure.
The beneficial effects of the utility model reside in that: the utility model provides a big amplitude miniature speaker acoustic performance of three magnetic circuits is good, the lead wire draw forth back and the extension adhesive bonding on the skeleton from the bight of voice coil loudspeaker voice coil, be convenient for to the hookup location of adjustment lead wire and extension in speaker assembling process, avoided the uneven roll that causes of lead wire pulling force to shake, do benefit to structural stability's promotion.
Drawings
Fig. 1 is an exploded view of a three-magnetic-circuit large-amplitude micro-speaker according to a first embodiment of the present invention;
fig. 2 is a schematic view of a partial structure of a three-magnetic-circuit large-amplitude micro-speaker according to a first embodiment of the present invention;
fig. 3 is a schematic view of a partial structure of a three-magnetic-circuit large-amplitude micro-speaker according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a framework according to a first embodiment of the present invention.
Description of reference numerals:
1. a diaphragm assembly; 2. a voice coil; 21. a framework; 211. an annular portion; 212. a protruding portion; 213. an adhesive portion; 214. a connecting portion; 215. a void avoidance area; 3. a basin stand; 4. a lead wire; 41. a lead-out section; 42. an adhesive part; 43. a suspended section; 44. a fixed section; 5. a first secondary film; 6. a second subsidiary film; 7. central magnetic steel; 8. edge magnetic steel; 9. a magnetic bowl; 91. and (5) flanging.
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 three-magnetic-circuit large-amplitude micro speaker includes a magnetic circuit assembly, a frame 3, a voice coil 2, and a lead 4 led out from a corner of the voice coil 2, where the voice coil 2 is connected to the frame 3 through the lead 4, the magnetic circuit assembly includes a magnetic bowl 9 connected to the frame 3, a central magnetic steel 7 located in the center of the magnetic bowl 9, and a set of side magnetic steels 8 located on opposite sides of the magnetic bowl 9, a flange 91 is provided on the other pair of opposite sides of the magnetic bowl 9, a bobbin 21 is further provided on the voice coil 2, the bobbin 21 includes a ring portion 211 and an extension portion 212 connected to each other, the ring portion 211 is connected to the top of the voice coil 2, and the extension portion 212 is located outside the flange 91 and is adhesively connected to a portion of the lead 4.
From the above description, the beneficial effects of the present invention are: lead wire 4 is drawn forth the back from the bight of voice coil 2 and is connected with extension 212 adhesive on the skeleton 21, is convenient for adjust the hookup location of lead wire 4 with extension 212 in the speaker assembling process, has avoided the roll that lead wire 4 pulling force inequality caused to shake, does benefit to structural stability's promotion.
Further, the lead 4 comprises a leading-out section 41, an adhesive part 42, a suspending section 43 and a fixing section 44 which are connected in sequence, the adhesive part 42 is connected with the extending part 212, the leading-out section 41 is led out from the corner position of the voice coil 2, and the fixing section 44 is connected with the basin stand 3.
As can be seen from the above description, the stressed position of the lead 4 can be adjusted by adjusting the length of the lead-out section 41, the adhesive part 42 is conveniently connected to the protruding part 212 by adhesive, the suspending section 43 is a suspending part of the lead 4, and the fixing part is used for fixing to the frame 3, so as to achieve the conductive connection between the voice coil 2 and the frame 3.
Further, the basin stand further comprises a first secondary membrane 5 connected to the basin stand 3 and the bottom surface of the extension part 212.
As can be seen from the above description, the first secondary film 5 can support the bobbin 21, so as to reduce the risk of polarization of the voice coil 2, and facilitate improvement of structural stability.
Further, the bottom surface of the first sub-film 5 is higher than the bottom surface of the voice coil 2.
As can be seen from the above description, the bottom surface of the first secondary membrane 5 is higher than the bottom surface of the voice coil 2, so that the bottom of the first secondary membrane 5 can be prevented from striking other components in the vibration process, and the stability of the speaker can be improved.
Further, the voice coil loudspeaker further comprises a second auxiliary membrane 6 which is respectively connected with the basin frame 3 and the corner of the voice coil 2.
As can be seen from the above description, the second auxiliary diaphragm 6 can support the voice coil 2, so as to reduce the risk of polarization of the voice coil 2, and facilitate the improvement of structural stability.
Further, the bobbin 21 further includes a connection portion 214, the annular portion 211 extends towards the direction away from the voice coil 2 to form the connection portion 214, and one end of the connection portion 214 away from the annular portion 211 extends along the height direction of the voice coil 2 to form the extension portion 212.
Further, the connecting portion 214 is provided with a clearance area 215 for avoiding the flange 91.
Further, the clearance area 215 is a through hole formed in the connecting portion 214 at a position corresponding to the flange 91.
As can be seen from the above description, the clearance area 215 can form a clearance for the flange 91, which is beneficial to the increase of the amplitude.
Further, the bobbin 21 further includes an adhesive portion 213 extending from an end of the extension portion 212 far away from the connection portion 214 toward a direction far away from the voice coil 2, and the lead 4 is adhered to the adhesive portion 213.
As can be seen from the above description, the bonding portion 213 facilitates connection with the lead 4, can increase the bonding area of the lead 4, ensure the stability of connection of the lead 4 to the extension portion 212, and is beneficial to improving the acoustic performance of the speaker.
Further, the framework 21 is of an integrated structure.
As can be seen from the above description, the frame 21 is easy to form, which facilitates the reduction of manufacturing cost.
Example one
Referring to fig. 1 to 4, a first embodiment of the present invention is: a three-magnetic-circuit large-amplitude micro loudspeaker comprises a vibrating diaphragm component 1, a magnetic circuit component, a frame 3, a voice coil 2 and a lead wire 4 led out from the corner position of the voice coil 2, wherein the voice coil 2 is connected with the frame 3 through the lead wire 4, the magnetic circuit component comprises a magnetic bowl 9 connected with the frame 3, a central magnetic steel 7 positioned in the center of the magnetic bowl 9 and edge magnetic steels 8 arranged on a group of opposite edges of the magnetic bowl 9, a flanging 91 is arranged on the other group of opposite edges of the magnetic bowl 9, a framework 21 is further arranged on the voice coil 2, the framework 21 comprises an annular part 211 and an extending part 212 which are connected, the annular part 211 is connected with the top of the voice coil 2, and the extending part 212 is positioned on the outer side of the flanging 91 and is connected with a part of the lead wire 4 in an adhesive; specifically, voice coil loudspeaker voice coil 2 is the rectangle, and is preferred, turn-ups 91 are located the outside of a set of minor face of voice coil loudspeaker voice coil 2, so, can ensure turn-ups 91 with lead wire 4 has under the prerequisite of sufficient dodging the space, can design limit magnet steel 8 with the magnetic gap of center magnet steel 7 to the maximize, the maximize exerts magnetic circuit assembly's availability factor, does benefit to the promotion of acoustic performance. It is easy to understand, lead wire 4 is connected with extension 212 adhesive on the skeleton 21 after the bight of voice coil 2 is drawn forth, is convenient for to adjust the hookup location of lead wire 4 and extension 212 in the speaker assembling process, has avoided the rolling vibration that lead wire 4 pulling force is uneven to cause, does benefit to structural stability's promotion.
Preferably, lead wire 4 is including consecutive section 41, sticky portion 42, unsettled section 43 and the fixed segment 44 of drawing forth, sticky portion 42 with extension 212 is connected, draw forth section 41 certainly 2 bight positions of voice coil loudspeaker voice coil are drawn forth, fixed segment 44 with basin frame 3 is connected, and easy understanding, in the assembly process of speaker, the accessible adjustment draw forth the length of section 41 and adjust lead wire 4's stress position, sticky portion 42 be convenient for with extension 212 adhesive bonding, unsettled section 43 does lead wire 4's unsettled part, the fixed part be used for fixing to on the basin frame 3, realize voice coil 2 with the conductive connection of basin frame 3.
Preferably, the bobbin 21 further includes a connecting portion 214, the annular portion 211 extends in a direction away from the voice coil 2 to form the connecting portion 214, one end of the connecting portion 214 away from the annular portion 211 extends in a height direction of the voice coil 2 to form the protruding portion 212, further, in order to prevent the connecting portion 214 from colliding with the flange 91 during vibration of the voice coil 2, the connecting portion 214 is provided with a clearance area 215 for avoiding a position of the flange 91, and specifically, the clearance area 215 is a through hole formed in a position of the connecting portion 214 corresponding to the flange 91; as can be easily understood, the clearance area 215 can form a clearance for the flange 91, which is beneficial to the increase of the amplitude.
Specifically, the bobbin 21 further includes an adhesive portion 213 extending from one end of the protruding portion 212, which is far away from the connecting portion 214, toward a direction far away from the voice coil 2, and the lead 4 is adhered to the adhesive portion 213, which is easy to understand, the adhesive portion 213 is convenient to connect with the lead 4, so that the adhesion area of the lead 4 can be increased, the stability of the connection of the lead 4 in the protruding portion 212 is ensured, and the improvement of the acoustic performance of the speaker is facilitated; in addition, in this embodiment, the frame 21 is an integrated structure, so that the bending and forming are facilitated, and the manufacturing cost is reduced.
Preferably, still include respectively with the basin frame 3 and the first secondary membrane 5 that the bottom surface of extension 212 is connected, specifically, the bottom surface of first secondary membrane 5 is higher than the bottom surface of voice coil 2, it is easily understood, the bottom surface of first secondary membrane 5 is higher than the bottom surface of voice coil 2, can avoid in the vibration process 5 bottom striking other parts do benefit to the promotion of speaker stability.
Optionally, still include respectively with basin frame 3 and the second auxiliary membrane 6 that voice coil 2 bight is connected, understand easily, second auxiliary membrane 6 can play the supporting role to voice coil 2, has reduced the risk of voice coil 2 polarization, does benefit to structural stability's promotion.
To sum up, the utility model provides a three magnetic circuit large amplitude micro loudspeaker acoustic performance is good, structural stability is strong, satisfy the big amplitude of speaker, miniaturized development trend.
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 three magnetic circuit big amplitude miniature speaker, includes magnetic circuit component, basin frame, voice coil loudspeaker voice coil and certainly the lead wire that voice coil loudspeaker voice coil bight position was drawn forth, the voice coil loudspeaker voice coil passes through the lead wire with the basin frame is connected, magnetic circuit component is including connecting the magnetism bowl of basin frame, being located the central magnet steel of magnetism bowl central authorities and locating a set of edge magnet steel on the opposite side of magnetism bowl, another group of edge to the magnetism bowl is equipped with the turn-ups, a serial communication port, still be equipped with the skeleton on the voice coil loudspeaker voice coil, the skeleton is including continuous annular portion and extension, annular portion connects the voice coil loudspeaker voice coil top, the extension is located the turn-ups outside and with some adhesive bonding of lead wire.
2. The micro-speaker with three magnetic circuits and large amplitude as claimed in claim 1, wherein the lead comprises a lead-out section, an adhesive portion, a suspension section and a fixing section, wherein the adhesive portion is connected to the extension portion, the lead-out section is led out from the corner of the voice coil, and the fixing section is connected to the frame.
3. The triple-magnetic-circuit large-amplitude micro-speaker according to claim 1, further comprising a first sub-membrane connected to the frame and the bottom surface of the extension portion, respectively.
4. The triple-magnetic-circuit large-amplitude micro-speaker according to claim 3, wherein the bottom surface of the first sub-diaphragm is higher than the bottom surface of the voice coil.
5. The triple-magnetic-circuit large-amplitude microspeaker of claim 2 further comprising a second secondary diaphragm connected to the frame and the voice coil corners, respectively.
6. The triple-magnetic-circuit large-amplitude micro-speaker according to claim 1, wherein the bobbin further comprises a connecting portion, the annular portion extends in a direction away from the voice coil to form the connecting portion, and an end of the connecting portion away from the annular portion extends in a height direction of the voice coil to form the protruding portion.
7. The micro-speaker with three magnetic circuits and large amplitude as claimed in claim 6, wherein the connecting portion is provided with a clearance area for avoiding the flange.
8. The micro-speaker with three magnetic circuits and large amplitude as claimed in claim 7, wherein the clearance area is a through hole formed at a position of the connecting portion corresponding to the flange.
9. The micro-speaker of claim 6, wherein the frame further comprises a bonding portion extending from an end of the extension portion away from the connection portion in a direction away from the voice coil, and the lead is bonded to the bonding portion.
10. The triple-magnetic-circuit large-amplitude micro-speaker according to claim 1, wherein the frame is a one-piece structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021731450.5U CN213126447U (en) | 2020-08-14 | 2020-08-14 | Three-magnetic-circuit large-amplitude micro loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021731450.5U CN213126447U (en) | 2020-08-14 | 2020-08-14 | Three-magnetic-circuit large-amplitude micro loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213126447U true CN213126447U (en) | 2021-05-04 |
Family
ID=75654371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021731450.5U Active CN213126447U (en) | 2020-08-14 | 2020-08-14 | Three-magnetic-circuit large-amplitude micro loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213126447U (en) |
-
2020
- 2020-08-14 CN CN202021731450.5U patent/CN213126447U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202035136U (en) | Miniature loudspeaker with linear vibration structure | |
| WO2020181887A1 (en) | Loudspeaker | |
| WO2021232473A1 (en) | Loudspeaker | |
| CN204031442U (en) | Loud speaker | |
| WO2022007024A1 (en) | Loudspeaker | |
| CN213126447U (en) | Three-magnetic-circuit large-amplitude micro loudspeaker | |
| CN112565987A (en) | Double-sided ultrathin loudspeaker | |
| CN213126446U (en) | Three-magnetic-circuit large-amplitude micro loudspeaker | |
| WO2022006922A1 (en) | Loudspeaker | |
| CN213126445U (en) | Three-magnetic-circuit large-amplitude micro loudspeaker | |
| WO2024000686A1 (en) | Coaxial speaker | |
| CN213586261U (en) | Three-magnetic-circuit large-amplitude micro loudspeaker | |
| CN210225736U (en) | Multi-driving-point sound exciter | |
| CN212910011U (en) | Three-magnetic-circuit large-amplitude micro loudspeaker | |
| CN209845300U (en) | Micro loudspeaker | |
| CN102273231A (en) | Multifunctional microspeaker | |
| CN217883706U (en) | Miniature loudspeaker | |
| CN212910026U (en) | Micro loudspeaker | |
| CN217428285U (en) | Large-amplitude micro loudspeaker | |
| CN217388904U (en) | Miniature loudspeaker | |
| CN213126334U (en) | Three-magnetic-circuit large-amplitude micro loudspeaker | |
| CN213073084U (en) | Large-amplitude micro loudspeaker | |
| CN217388901U (en) | Large-amplitude micro loudspeaker | |
| CN210899608U (en) | Large-amplitude micro loudspeaker | |
| CN216795273U (en) | Multi-voice coil large-amplitude loudspeaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |