CN209897257U - Sound production device - Google Patents
Sound production device Download PDFInfo
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- CN209897257U CN209897257U CN201822273515.5U CN201822273515U CN209897257U CN 209897257 U CN209897257 U CN 209897257U CN 201822273515 U CN201822273515 U CN 201822273515U CN 209897257 U CN209897257 U CN 209897257U
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Abstract
The utility model provides a sounding device, which comprises a basin frame, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are respectively fixed on the basin frame; the magnetic circuit system comprises a magnetic yoke, main magnetic steel, two first auxiliary magnetic steels and an upper clamping plate; the vibration system comprises a vibrating diaphragm, a voice coil and an elastic supporting assembly, and the elastic supporting assembly is connected with the vibration system; the upper clamping plate comprises a fixing ring fixed on the basin frame, a fixing plate extending from the fixing ring and two first auxiliary pole cores connected to the fixing plate and overlapped on the first auxiliary magnetic steel, and a gap space is formed between the first auxiliary pole cores and the fixing ring at intervals; the elastic support assembly comprises an elastic piece, the elastic piece comprises a first fixing arm, a second fixing arm and an elastic arm connected with the first fixing arm and the second fixing arm, and at least part of the elastic arm is located in the gap space. Compared with the prior art, the utility model discloses a high just acoustic performance of vocal device reliability is excellent.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an acoustoelectric field especially relates to an apply to vocal device of portable electronic product.
[ background of the invention ]
With the advent of the mobile internet age, the number of smart mobile devices is increasing. Among the mobile devices, the mobile phone is undoubtedly the most common and portable mobile terminal device. A sound generating device for playing sound is widely applied to smart mobile devices such as current mobile phones.
The sound production device in the related art comprises a basin frame, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are respectively fixed on the basin frame; the vibration system comprises a vibrating diaphragm fixed on the basin frame, a voice coil inserted in the magnetic gap to drive the vibrating diaphragm to vibrate and sound and an elastic supporting component fixedly connected with the vibrating diaphragm and/or the voice coil; the punch holder is including being fixed in solid fixed ring and fixed connection in of basin frame gu fixed ring just fold and locate the auxiliary pole core of vice magnet steel, the elastic support subassembly is close to the one end of basin frame is fixed in gu fixed ring, the elastic support subassembly includes the bullet arm of outside extension, the bullet arm with the interval of auxiliary pole core sets up.
However, in the sound-generating device of the related art, the auxiliary pole core is directly and fixedly connected to the fixing ring, the elastic arm of the elastic support component needs to be moved away from the auxiliary pole core, so that the extending length of the elastic arm is limited, the vibration effect of the elastic support component is poor, and the acoustic improvement of the sound-generating device is limited.
Therefore, there is a need to provide a new sound generation device to solve the above technical problems.
[ Utility model ] content
An object of the utility model is to provide a sound production device that the reliability is high and acoustic performance is excellent.
In order to achieve the above object, the present invention provides a sound generating device, which comprises a basin frame, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are respectively fixed on the basin frame; the magnetic circuit system comprises a magnetic yoke fixed on the basin frame, main magnetic steel fixed on the magnetic yoke, at least two first auxiliary magnetic steels arranged on two opposite sides of the main magnetic steel at intervals and enclosing a magnetic gap with the main magnetic steel, and an upper clamping plate fixed on the basin frame and covering the first auxiliary magnetic steels; the vibration system comprises a vibrating diaphragm fixed on the basin frame, a voice coil inserted in the magnetic gap to drive the vibrating diaphragm to vibrate and sound, and an elastic support component fixed on the basin frame and opposite to the vibrating diaphragm and arranged at intervals, wherein the elastic support component is connected with the vibration system; an accommodating space is formed between the elastic support assembly and the voice coil, and the first auxiliary magnetic steel is positioned in the accommodating space; the upper clamping plate comprises an annular fixing ring fixed on the basin frame, two fixing plates extending from two opposite sides of the fixing ring to the first auxiliary magnetic steel, and two first auxiliary pole cores respectively connected to the two fixing plates and stacked on the two first auxiliary magnetic steels, and a gap space is formed between each first auxiliary pole core and the fixing ring; the elastic support assembly comprises an elastic piece, the elastic piece comprises a first fixing arm fixed on the basin frame, a second fixing arm spaced relatively from the first fixing arm and an elastic arm connected with the first fixing arm and the second fixing arm, and the elastic arm is at least partially located in the gap space.
Voice coil loudspeaker voice coil fixed connection in the vibrating diaphragm, the elastic support subassembly still including connect in the support chassis of bullet arm, support chassis connect in the vibrating diaphragm and with the voice coil loudspeaker voice coil interval sets up, support chassis will the elastic support subassembly with the voice coil loudspeaker voice coil is indirect to link to each other.
Preferably, the elastic support assembly further comprises an auxiliary diaphragm attached to the elastic member.
Preferably, the auxiliary diaphragm is close to one side of the voice coil is sunken to form a first abdicating groove, and the first auxiliary magnetic steel extends to the inside of the abdicating groove.
Preferably, the elastic support assembly includes two and respectively with two first secondary magnet steels correspond and set up in the relative both sides of voice coil loudspeaker voice coil, each elastic component includes two second fixed arms that set up at an interval each other and two by first fixed arm extends to two respectively two play the arm of second fixed arm, each play the arm at least part be located clearance space.
Preferably, the two elastic support assemblies together enclose a hollow area, and one end of the voice coil, which is far away from the diaphragm, is located in the range of the hollow area.
Preferably, the voice coil is of a rectangular structure, the two elastic support assemblies are located on two sides of a short shaft of the voice coil, and the two first auxiliary magnetic steels are located on two sides of the short shaft of the voice coil.
Preferably, the voice coil is of a rectangular structure with rounded corners, and the two second fixing arms of each elastic support assembly are respectively located at two adjacent rounded corners of the voice coil.
Preferably, the magnetic circuit system further includes two second secondary magnetic steels respectively disposed at intervals on two opposite sides of the major axis of the main magnetic steel.
Preferably, the magnetic circuit system further includes a main pole core stacked on the main magnetic steel, the upper plate further includes two secondary pole cores extended from the fixed ring to the secondary magnetic steel, and each secondary pole core is stacked on one secondary pole core.
Preferably, the elastic member is a flexible circuit board.
Compared with the prior art, the sound production device of the present invention has the advantages that each first auxiliary pole piece is arranged at a certain distance from the fixing ring and connected to the fixing plate at the same side of the fixing ring, and each first auxiliary pole piece is indirectly connected to the fixing ring through the arrangement of the fixing plate, so that the fixing ring and each first auxiliary pole piece have a certain gap space, the elastic support component is fixed to the fixing ring and partially located in the gap space, specifically, the elastic arm portion of the elastic support component is accommodated in the gap space, the gap through space increases more wiring space for the elastic arm, and the elastic support component is more stable in vibration by increasing the length of the elastic arm, thereby improving the reliability of the sound production device; in addition, a certain accommodating space is formed between the voice coil and the elastic support assembly, each first auxiliary magnetic steel is positioned in the accommodating space between the elastic support assembly and the voice coil on the same side of the first auxiliary magnetic steel, the magnetic circuit system can realize a maximized three-magnetic-steel or five-magnetic-steel structure, the design limitation of the magnetic circuit system is released, and the acoustic performance of the sound production device is effectively improved.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:
fig. 1 is a schematic perspective view of the sound device of the present invention;
fig. 2 is a first exploded view of a part of the three-dimensional structure of the sound device of the present invention;
FIG. 3 is a second exploded view of the sound device according to the present invention;
fig. 4 is a schematic perspective view of the upper clamping plate and the elastic member of the sound device of the present invention;
fig. 5 is an exploded view of a part of the three-dimensional structure of the elastic support assembly of the sound device of the present invention;
fig. 6 is a schematic three-dimensional structure diagram of the elastic support assembly, the support framework and the voice coil of the sound device of the present invention;
fig. 7 is a schematic perspective view of the elastic support assembly of the sound device of the present invention;
fig. 8 is an exploded view of a part of the three-dimensional structure of the elastic support assembly and the first auxiliary magnetic steel of the sound device of the present invention;
fig. 9 is a schematic perspective view of the elastic support assembly and the first auxiliary magnetic steel of the sound generating device of the present invention;
fig. 10 is a top view of the elastic support assembly and the first auxiliary magnetic steel of the sound device according to the present invention;
FIG. 11 is a sectional view taken along line A-A of FIG. 1;
fig. 12 is a top view of a part of the three-dimensional structure of the sound device of the present invention;
fig. 13 is an enlarged view of a portion shown in B of fig. 11.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a sound generating device 100, which includes a frame 1, a vibration system 2, and a magnetic circuit system 3.
The basin stand 1 is used for supporting the vibration system 2 and the magnetic circuit system 3.
The magnetic circuit system 3 comprises a magnetic yoke 31 fixed on the basin stand 1, a main magnetic steel 32 fixed on the magnetic yoke 31, at least two first auxiliary magnetic steels 33 enclosing the magnetic gap 30 together with the main magnetic steel 32, and an upper clamping plate 34 fixed on and covering the first auxiliary magnetic steels; an accommodating space 20 is formed between the elastic support assembly 23 and the voice coil 22, and the first auxiliary magnetic steel 33 is located in the accommodating space 20; the upper clamping plate 34 includes an annular fixing ring 341 fixed to the basin frame 1, two fixing plates 342 extending from two opposite sides of the fixing ring 341 to the first secondary magnetic steel 33, and two first secondary pole cores 343 connected to the two fixing plates 342 respectively and stacked on the two first secondary magnetic steels 33, and each of the first secondary pole cores 343 and the fixing ring 341 form a gap space 340 at an interval.
In this embodiment, the elastic supporting assembly 23 includes an elastic member 231 and an auxiliary diaphragm 232 attached to the elastic member 231, the elastic member 231 includes a first fixing arm 2311 fixed to the frame 1, a second fixing arm 2312 spaced opposite to the first fixing arm 2311, and an elastic arm 2313 connecting the first fixing arm 2311 and the second fixing arm 2312, and at least a portion of the elastic arm 2313 is located in the gap space 340; specifically, the elastic member 231 includes two second fixing arms 2312 spaced apart from each other and two elastic arms 2313 extending from the first fixing arm 2311 to the two second fixing arms 2312, respectively, and each elastic arm 2313 is at least partially located in the gap space 340. The two elastic arms 2313 are arranged at intervals and are respectively fixed on the fixing plate 342, and at least part of each elastic arm 2313 is positioned in the gap space 340; in the above structure, by setting the gap space 340 to increase more routing space for the elastic arm 2313, the length of the gap space 340 is equivalent to the increased length of the elastic arm 2313, so that the overall length of the elastic arm 2313 is increased, the length of the elastic arm 2313 is increased, that is, the elastic support performance of the elastic support component 23 is enhanced, thereby improving the vibration performance of the vibration system 2 and improving the acoustic performance of the sound generating device 100.
Specifically, the auxiliary diaphragm 232 includes a folding ring 2321 having an arc-shaped cross section, and a first connection portion 2322 and a second connection portion 2323 extending from two opposite sides of the folding ring 2321, where the first connection portion 2322 is fixed to one side of the first fixing arm 2311 away from the diaphragm 21, and each second connection portion 2323 is fixed to one side of the second fixing arm 2312 away from the diaphragm 21, which is on the same side as the first fixing arm, and the folding ring 2321 and the elastic arm 2313 are disposed opposite to each other.
Preferably, the elastic member 231 is a flexible circuit board, and the voice coil 22 is electrically connected to the elastic member 231, so as to provide support for the voice coil 22 on one hand, and introduce an external electrical signal for the voice coil 22 on the other hand, thereby avoiding a problem of easy disconnection when introducing the external electrical signal for the voice coil 22 through a lead wire, and improving reliability thereof.
In addition, a certain accommodating space 20 is formed between the voice coil 22 and the elastic support assembly 23, and each first auxiliary magnetic steel 33 is arranged in the accommodating space 20 between the elastic support assembly 23 and the voice coil 22 on the same side of the first auxiliary magnetic steel, so that a three-magnetic steel or five-magnetic steel structure of the magnetic circuit system 3 can be realized to the maximum extent, the design limitation of the magnetic circuit system 3 is released, the magnetic performance of the magnetic circuit system is excellent, and the acoustic performance of the sound generating device 100 is excellent.
Referring to fig. 3 and fig. 5-7, the elastic supporting assembly 23 further includes a supporting frame 4 connected to the elastic arm 2313, and the supporting frame 4 is connected to the diaphragm 21.
The resilient support members 23 together define a hollow region 230. Further, the number of the elastic support assemblies 23 may be a symmetrical structure formed by two, or a surrounding structure formed by four, for example, in the present embodiment, the elastic support assemblies 23 include two and are respectively disposed on two opposite sides of the voice coil 22 corresponding to the two first secondary magnetic steels 33, taking the voice coil 22 having a rectangular structure as an example for explanation, the two elastic support assemblies 23 are disposed on two sides of the short axis of the voice coil 22 and jointly surround the hollow area 230, one end of the voice coil 22 away from the diaphragm 21 is disposed in the hollow area 230, and the arrangement of the dual elastic support assemblies 23 forms a symmetrical structure, so that the support effect on the voice coil 22 is more stable, and the lateral swing of the voice coil 22 is better prevented.
Referring to fig. 3 and fig. 6 to 10, a first yielding groove 2320 is formed in a concave manner on one side of the auxiliary diaphragm 232 close to the voice coil 22; the first yielding groove 2320 is located in the accommodating space 20, and the first auxiliary magnetic steel 33 extends into the first yielding groove 2320 on the same side. Through the arrangement of the first abdicating groove 2320, the design of the magnetic circuit system 3 is released, so that there is enough space between the elastic support component 23 and the voice coil 22 for placing the first secondary magnetic steel 33, the volume of the first secondary magnetic steel 33 is increased, and the magnetic performance of the magnetic circuit system 3 is optimized on the whole, so that the acoustic performance of the sound production device 100 is excellent.
Preferably, the voice coil 22 has a round rectangular structure, and the two second fixing arms 2312 of each elastic support assembly 23 are respectively located at two adjacent round positions of the voice coil 22; each of said first secondary magnetic steels 33 is located between two of said second fixing arms 2312 of the same one of said elastic supporting members 23; each first pair magnet steel 33's relative both sides are sunken respectively and are formed two second groove 330 of stepping down, two second groove 330 of stepping down respectively with same elastic support component 23 two second fixed arm 2312 sets up relatively, each bullet arm 2313 extends to rather than homonymy in the second groove 330 of stepping down. Through the setting of second groove 330 of stepping down, when guaranteeing first auxiliary magnet steel 33's magnetism nature performance, further for the bullet arm 2313 has increased the line space, makes through further increasing the length of bullet arm 2313 the vibration of elastic support component 23 is more stable promptly, thereby realizes the higher reliability of sound production device 100.
In the above structure, the elastic support component 23 is a symmetrical structure formed by two, and correspondingly, the first secondary magnetic steel 33 also includes two magnetic steels and is disposed at two opposite sides of the main magnetic steel 32 at intervals, and each of the first secondary magnetic steels 33 is located between the elastic support component 23 and the voice coil 22 on the same side as the first secondary magnetic steel 33. At this time, the magnetic circuit system 3 has three magnetic steels, and in practical application, the magnetic circuit system 3 may be set as a three-magnetic-steel magnetic circuit according to the requirement of an optimized design, or the magnetic circuit system 3 may be further optimized as a five-magnetic-steel magnetic circuit.
When the magnetic circuit system 3 is a three-magnetic-steel magnetic circuit, taking the rectangular structure of the voice coil 22 as an example for explanation, the two elastic support assemblies 23 are located on two sides of the short axis of the voice coil 22, and the two first secondary magnetic steels 33 are also located on two sides of the short axis of the voice coil 22. At this time, the three-magnetic steel magnetic circuit structure makes the driving performance of the magnetic circuit system 3 strong, so that the acoustic performance of the sound production device 100 is good.
When the magnetic circuit system 3 is a five-magnet steel magnetic circuit, for example, in the present embodiment, in order to further effectively utilize the space and increase the volume of the magnetic circuit system 3, the magnetic circuit system 3 further includes two second secondary magnets 34 respectively disposed at two opposite sides of the long axis of the main magnet 32 at intervals. At this time, the driving performance of the five-magnetic steel magnetic circuit structure is stronger, so that the vibration effect of the sound production device 100 is better.
In order to further improve the performance of the magnetic circuit system 3, preferably, the magnetic lines of force of the magnetic circuit system 3 are cut by the voice coil 22 as much as possible to form a larger driving force, the magnetic circuit system 3 further includes a main pole core 36 stacked on the main magnetic steel 32, the upper clamp plate 34 further includes two second auxiliary pole cores 344 extending from the fixing ring 341 to the second auxiliary magnetic steel 35, and each of the second auxiliary pole cores 344 is stacked on the second auxiliary magnetic steel 35 on the same side as the second auxiliary magnetic steel 35. By the arrangement of the main pole core 36 and the second auxiliary pole core 344, the magnetic lines of force of the magnetic circuit system 3 are more concentrated, so that the magnetic performance of the magnetic circuit system 3 is better, and the acoustic performance of the sound production device 100 is further improved.
It should be noted that, in addition to the structure of the dual elastic supporting members 23 mentioned in the present embodiment, in order to further optimize the vibration performance of the vibration system 2, the elastic supporting members 23 may also include four elastic supporting members 23 disposed around the voice coil 22, and a rectangular structure in which the voice coil 22 is rounded is taken as an example, where two of the elastic supporting members 23 are located on two sides of the short axis of the voice coil 22, and the other two elastic supporting members 23 are located on two sides of the long axis of the voice coil 22; correspondingly, the first secondary magnetic steels 33 should also include four and be disposed around the main magnetic steel 32, wherein two first secondary magnetic steels 33 are located on two sides of the short axis of the voice coil 22, and the other two first secondary magnetic steels 33 are located on two sides of the long axis of the voice coil 22. By the arrangement of four elastic supporting assemblies 23, the vibration performance of the vibration system 2 can be better improved, so that the acoustic performance of the sound production device 100 is better improved.
Referring to fig. 3, fig. 6 and fig. 11-13, in the above structure, the elastic supporting component 23 is indirectly connected to the vibration system 2, and the elastic supporting component 23 is indirectly connected to the diaphragm 22 through the supporting framework 4; specifically, voice coil 22 fixed connection in vibrating diaphragm 21, support chassis 4 with voice coil 22 interval sets up and fixed connection in vibrating diaphragm 21, its one end of keeping away from vibrating diaphragm 21 with elastic support component 23 connects, support chassis 4 will elastic support component 23 with voice coil 22 links to each other indirectly. Further, the supporting frame 4 is fixed to a side of the second fixing arm 2312 close to the diaphragm 21.
On one hand, the indirect connection structure realizes effective inhibition on the transverse swing of the voice coil 22 through the elastic support component 23, and improves the reliability and stability of the sound production device 100, on the other hand, the elastic support component 23 is not directly connected with the voice coil 22, so that the structural design of the voice coil 22 is released, the position of the structure can float up and down along the vibration direction of the vibrating diaphragm 21, the height of the voice coil is not limited by the elastic support component 23 any more, and the overall height of the sound production device can be designed to be thinner and lighter; meanwhile, the structural design of the magnetic circuit system 3 is released, the elastic support component 23 is not directly glued with the bottom of the voice coil 22, the interference of the magnetic circuit system 3 and the elastic support component 23 is effectively avoided, the magnetic circuit system 3 does not need to be shifted to the elastic support component 23, the magnetic circuit system 3 can realize a maximized structure, and the acoustic performance of the sound production device 100 is effectively improved.
Of course, it is also possible that the resilient support member 23 is directly connected to the vibration system 2, i.e. that the resilient support member 23 is fixedly connected directly to the voice coil 22.
Preferably, taking the voice coil 22 as a rectangular structure with round corners as an example for explanation, the number of the support skeletons 4 is four, and the four support skeletons 4 are respectively located at the positions of the four round corners of the voice coil 22. At this time, magnetic steels can be arranged on both sides of the short axis and both sides of the long axis of the voice coil 22, which can be fully used for designing a magnetic steel structure, thereby increasing the volume of the magnetic circuit system 3 to improve the magnetic field performance thereof.
Compared with the prior art, the sound production device of the present invention has the advantages that each first auxiliary pole piece is arranged at a certain distance from the fixing ring and connected to the fixing plate at the same side of the fixing ring, and each first auxiliary pole piece is indirectly connected to the fixing ring through the arrangement of the fixing plate, so that the fixing ring and each first auxiliary pole piece have a certain gap space, the elastic support component is fixed to the fixing ring and partially located in the gap space, specifically, the elastic arm portion of the elastic support component is accommodated in the gap space, the gap through space increases more wiring space for the elastic arm, and the elastic support component is more stable in vibration by increasing the length of the elastic arm, thereby improving the reliability of the sound production device; in addition, a certain accommodating space is formed between the voice coil and the elastic support assembly, each first auxiliary magnetic steel is positioned in the accommodating space between the elastic support assembly and the voice coil on the same side of the first auxiliary magnetic steel, the magnetic circuit system can realize a maximized three-magnetic-steel or five-magnetic-steel structure, the design limitation of the magnetic circuit system is released, and the acoustic performance of the sound production device is effectively improved.
The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.
Claims (10)
1. A sounding device comprises a basin frame, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are respectively fixed on the basin frame; the magnetic circuit system comprises a magnetic yoke fixed on the basin frame, main magnetic steel fixed on the magnetic yoke, at least two first auxiliary magnetic steels arranged on two opposite sides of the main magnetic steel at intervals and enclosing a magnetic gap with the main magnetic steel, and an upper clamping plate fixed on the basin frame and covering the first auxiliary magnetic steels; the vibration system comprises a vibrating diaphragm fixed on the basin frame, a voice coil inserted in the magnetic gap to drive the vibrating diaphragm to vibrate and sound, and an elastic support assembly fixed on the basin frame and opposite to the vibrating diaphragm and arranged at intervals, wherein the elastic support assembly is connected with the vibration system; the upper clamping plate comprises an annular fixing ring fixed on the basin frame, two fixing plates extending from two opposite sides of the fixing ring to the first auxiliary magnetic steel, and two first auxiliary pole cores respectively connected to the two fixing plates and stacked on the two first auxiliary magnetic steels, and a gap space is formed between each first auxiliary pole core and the fixing ring; the elastic support assembly comprises an elastic piece, the elastic piece comprises a first fixing arm fixed on the basin frame, a second fixing arm spaced opposite to the first fixing arm and an elastic arm connected with the first fixing arm and the second fixing arm, and at least part of the elastic arm is located in the gap space;
voice coil loudspeaker voice coil fixed connection in the vibrating diaphragm, the elastic support subassembly still including connect in the support chassis of bullet arm, support chassis connect in the vibrating diaphragm and with the voice coil loudspeaker voice coil interval sets up, support chassis will the elastic support subassembly with the voice coil loudspeaker voice coil is indirect to link to each other.
2. The sounder device according to claim 1, wherein the resilient support assembly further comprises an auxiliary diaphragm attached to the resilient member.
3. The sound production device of claim 2, wherein a side of the auxiliary diaphragm close to the voice coil is recessed to form a first recess, and the first secondary magnetic steel extends into the first recess.
4. The sounding device according to claim 3, wherein the elastic supporting assembly includes two elastic arms disposed on opposite sides of the voice coil corresponding to the two first secondary magnetic steels, and the elastic member includes two second fixing arms spaced apart from each other and two elastic arms extending from the first fixing arm to the two second fixing arms, and each of the elastic arms is at least partially located in the gap space.
5. The sounding device according to claim 4, wherein the two resilient support members together define a hollow region, and an end of the voice coil remote from the diaphragm is located within the hollow region.
6. The sounding device according to claim 5, wherein the voice coil is rectangular, the two elastic supporting members are located on two sides of the short axis of the voice coil, and the two first secondary magnetic steels are located on two sides of the short axis of the voice coil.
7. The sounder device according to claim 6, wherein the voice coil is of a rectangular configuration with rounded corners, and the two second fixing arms of each of the resilient support members are located at two adjacent rounded corners of the voice coil.
8. The sound production device as claimed in claim 7, wherein the magnetic circuit system further comprises two second secondary magnetic steels disposed at two opposite sides of the long axis of the primary steel at intervals.
9. The sound production device as claimed in claim 8, wherein the magnetic circuit system further comprises a main pole core stacked on the main magnetic steel, the upper plate further comprises two second auxiliary pole cores extending from the fixed ring to the second auxiliary magnetic steel, and each of the second auxiliary pole cores is stacked on one of the second auxiliary pole cores.
10. The sounder device according to claim 1, wherein the resilient member is a flexible circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822273515.5U CN209897257U (en) | 2018-12-29 | 2018-12-29 | Sound production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822273515.5U CN209897257U (en) | 2018-12-29 | 2018-12-29 | Sound production device |
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| CN209897257U true CN209897257U (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822273515.5U Expired - Fee Related CN209897257U (en) | 2018-12-29 | 2018-12-29 | Sound production device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111641906A (en) * | 2020-06-24 | 2020-09-08 | 瑞声科技(新加坡)有限公司 | Sound production device |
| CN111641901A (en) * | 2020-05-08 | 2020-09-08 | 瑞声科技(新加坡)有限公司 | Sound production device |
| WO2022007170A1 (en) * | 2020-07-06 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| WO2024087295A1 (en) * | 2022-10-28 | 2024-05-02 | 瑞声光电科技(常州)有限公司 | Multifunctional sound production device |
-
2018
- 2018-12-29 CN CN201822273515.5U patent/CN209897257U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111641901A (en) * | 2020-05-08 | 2020-09-08 | 瑞声科技(新加坡)有限公司 | Sound production device |
| CN111641901B (en) * | 2020-05-08 | 2021-10-19 | 瑞声科技(新加坡)有限公司 | Sound production device |
| WO2021223255A1 (en) * | 2020-05-08 | 2021-11-11 | 瑞声声学科技(深圳)有限公司 | Sounding device |
| CN111641906A (en) * | 2020-06-24 | 2020-09-08 | 瑞声科技(新加坡)有限公司 | Sound production device |
| CN111641906B (en) * | 2020-06-24 | 2021-07-09 | 瑞声科技(新加坡)有限公司 | Sound production device |
| WO2022007170A1 (en) * | 2020-07-06 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| WO2024087295A1 (en) * | 2022-10-28 | 2024-05-02 | 瑞声光电科技(常州)有限公司 | Multifunctional sound production device |
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Granted publication date: 20200103 Termination date: 20211229 |