CN109348371B - Sound production device - Google Patents

Sound production device Download PDF

Info

Publication number
CN109348371B
CN109348371B CN201811162954.7A CN201811162954A CN109348371B CN 109348371 B CN109348371 B CN 109348371B CN 201811162954 A CN201811162954 A CN 201811162954A CN 109348371 B CN109348371 B CN 109348371B
Authority
CN
China
Prior art keywords
voice coil
vibrating diaphragm
magnetic
fixed
elastic
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.)
Expired - Fee Related
Application number
CN201811162954.7A
Other languages
Chinese (zh)
Other versions
CN109348371A (en
Inventor
宋威
张帆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Technologies Pte Ltd
Original Assignee
AAC Technologies Pte Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AAC Technologies Pte Ltd filed Critical AAC Technologies Pte Ltd
Priority to CN201811162954.7A priority Critical patent/CN109348371B/en
Publication of CN109348371A publication Critical patent/CN109348371A/en
Application granted granted Critical
Publication of CN109348371B publication Critical patent/CN109348371B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00Diaphragms for electromechanical transducers; Cones
    • H04R7/16Mounting or tensioning of diaphragms or cones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • H04R9/025Magnetic circuit
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • H04R9/04Construction, mounting, or centering of coil

Abstract

The invention 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 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 produce sound, and an elastic support component fixed on the basin frame, opposite to the vibrating diaphragm and arranged at intervals, and is characterized in that the sound production device also comprises a support framework; voice coil loudspeaker voice coil fixed connection is in the vibrating diaphragm, and the one end that the braced frame is close to the vibrating diaphragm sets up with the vibrating diaphragm interval, and its one end of keeping away from the vibrating diaphragm is connected with the elastic support subassembly, and the side of voice coil loudspeaker voice coil is fixed in the braced frame laminating, and the braced frame is used for hanging voice coil loudspeaker voice coil elasticity in the vibrating diaphragm below. Compared with the related art, the sound production device has good acoustic performance and high reliability.

Description

Sound production device
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of acoustoelectrics, in particular to a sounding device applied to a 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; vibration system is including being fixed in the vibrating diaphragm of basin frame, being fixed in the vibrating diaphragm inserts and locates the magnetic gap is in order to drive the voice coil loudspeaker voice coil and the one end of vibrating diaphragm vibration sound production are fixed in the basin frame, the other end is fixed in the voice coil loudspeaker voice coil is kept away from the elastic support subassembly of vibrating diaphragm one end.
However, in the sound generating device in the related art, the diaphragm and the elastic support assembly are respectively fixed to two opposite ends of the voice coil, and although the elastic support assembly can effectively prevent the lateral vibration of the voice coil during vibration, the design of the voice coil is limited due to the structure of directly connecting with the voice coil, and the volume of the magnetic circuit system is also limited, so that the improvement of the acoustic performance 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.
[ summary of the invention ]
The invention aims to provide a sound production device with good acoustic performance and high reliability.
In order to achieve the above object, the present invention provides a sound production device, which comprises a basin frame, a vibration system, a magnetic circuit system with magnetic gaps and a supporting framework, wherein the vibration system, the magnetic circuit system with magnetic gaps and the supporting framework 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 support component fixed on the basin frame and opposite to the vibrating diaphragm and arranged at intervals; voice coil loudspeaker voice coil fixed connection in the vibrating diaphragm, the support chassis is close to the one end of vibrating diaphragm with the vibrating diaphragm interval sets up, and it is kept away from the one end of vibrating diaphragm with the elastic support subassembly is connected, the support chassis laminating is fixed in the side of voice coil loudspeaker voice coil, the support chassis be used for with voice coil loudspeaker voice coil elasticity hang in the vibrating diaphragm below.
Preferably, the elastic support components 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 support framework comprises a framework body which is separated from the voice coil by a certain distance and a support wall formed by bending and extending the framework body; the framework body is fixedly connected with the elastic supporting assembly, and the supporting wall is attached to the side face of the voice coil.
Preferably, the supporting wall is formed by reversely bending and extending the framework body.
Preferably, the support frame includes four, the voice coil loudspeaker voice coil is the rectangle structure that is the fillet, four the support frame is located respectively the position of four fillets of voice coil loudspeaker voice coil.
Preferably, the elastic support assemblies comprise two elastic support assemblies respectively located at two opposite sides of the voice coil, and each elastic support assembly comprises an elastic part and an auxiliary diaphragm attached to the elastic part; the framework body is fixedly connected to one side, far away from the auxiliary vibrating diaphragm, of the elastic piece.
Preferably, the elastic part comprises a first fixing arm fixed on the basin frame, two second fixing arms respectively supported and fixed on two adjacent supporting frameworks, and two elastic arms which are respectively extended from the first fixing arm to the two second fixing arms and are fixedly connected with each other; the auxiliary vibrating diaphragm comprises a first folding ring with an arc-shaped cross section, and a first connecting part and a second connecting part which are respectively extended from two opposite sides of the first folding ring, wherein the first connecting part is fixed on one side of the first fixing arm, which is far away from the vibrating diaphragm, each second connecting part is fixed on one side, which is far away from the vibrating diaphragm, of the second fixing arm on the same side of the second connecting part, and the first folding ring and the elastic arm are oppositely arranged; the framework body is fixed on one side, far away from the second connecting portion, of the second fixing arm.
Preferably, the elastic member is a flexible circuit board electrically connected to the voice coil.
Preferably, the magnetic circuit system comprises a magnetic yoke, main magnetic steel fixed on the magnetic yoke, and two first auxiliary magnetic steels respectively arranged at two opposite sides of the main magnetic steel at intervals and forming the magnetic gap with the main magnetic steel; and the two first auxiliary magnetic steels are positioned between the two elastic supporting components.
Preferably, the voice coil is a rounded rectangular structure, the first auxiliary magnetic steel is located on two sides of a long shaft of the voice coil, and the elastic support assemblies are located on two sides of a short shaft of the voice coil.
Preferably, the magnetic circuit system further comprises two second secondary magnetic steels respectively arranged at two opposite sides of the main magnetic steel at intervals; each second auxiliary magnetic steel is positioned between the two second fixing arms of the same elastic piece on the same side of the second auxiliary magnetic steel.
Preferably, the voice coil loudspeaker voice coil is for being the rectangular structure at fillet, two first pair magnet steel is located the both sides of the major axis of voice coil loudspeaker voice coil, two elastic support component is located the both sides of the minor axis of voice coil loudspeaker voice coil, two the vice magnet steel of second is located the both sides of the minor axis of voice coil loudspeaker voice coil, and each the vice magnet steel of second is located rather than homonymy elastic support component with between the voice coil loudspeaker voice coil.
Preferably, the vice magnet steel of second includes the magnet steel body and by the magnet steel rib that the major axis both ends of magnet steel body extended the formation respectively, each the magnet steel rib extends to corresponding respectively the support chassis the skeleton body with between the voice coil loudspeaker voice coil.
Preferably, the auxiliary diaphragm is provided with a yielding groove which is formed by one side of the auxiliary diaphragm close to the voice coil and is sunken in the direction of the basin frame, and the magnetic steel body extends into the yielding groove.
Preferably, magnetic circuit still includes that punch holder and lid are located the main pole core of main magnet steel, the punch holder including be fixed in the basin frame be annular solid fixed ring with by gu fixed ring respectively to first vice magnet steel with four vice pole cores that the vice magnet steel of second extends, four the vice pole core is folded respectively and is located first vice magnet steel with the vice magnet steel of second, just vice pole core respectively with correspond first vice magnet steel or the shape matching of the vice magnet steel of second.
Compared with the prior art, according to the sound production device, the voice coil is fixedly connected to the vibrating diaphragm, one end, close to the vibrating diaphragm, of the support framework is arranged at an interval with the vibrating diaphragm, one end, far away from the vibrating diaphragm, of the support framework is connected with the elastic support component, the support framework further comprises a support wall, the support wall is attached and fixed to the side face of the voice coil, and the support framework is used for elastically suspending the voice coil below the vibrating diaphragm, namely the structure enables the elastic support component to be connected to one end, selected from the vibrating diaphragm, of the voice coil through the support framework in an indirect mode, on one hand, the suppression of transverse swing of the voice coil during vibration is achieved, and the stability of the voice coil is improved; on the other hand, the limitation of the elastic support component on the voice coil when the elastic support component is directly connected with the voice coil is eliminated, the height of the voice coil is not limited by the elastic support component any more, and the overall height of the sound production device can be designed to be thinner and lighter; meanwhile, the design limitation on the magnetic circuit system is eliminated, the elastic support component is not directly glued with the bottom of the voice coil, the magnetic circuit system does not need to be abducted, the magnetic circuit system can realize a maximized multi-magnetic steel three-magnetic circuit or five-magnetic circuit structure, 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 in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic perspective view of a sound device according to the present invention;
FIG. 2 is a first exploded view of a part of a three-dimensional structure of a sound device according to the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 1;
FIG. 4 is a second exploded view of a part of the three-dimensional structure of the sound device of the present invention;
FIG. 5 is a schematic perspective view of a support frame of the sound device of the present invention;
FIG. 6 is a schematic perspective view of a support frame, an elastic support assembly and a voice coil of the sound device according to the present invention;
FIG. 7 is a schematic perspective view of an elastic support assembly of the sound device of the present invention;
FIG. 8 is an exploded perspective view of the resilient support assembly of the sound device of the present invention;
FIG. 9 is a schematic perspective view of the elastic support assembly and the second auxiliary magnetic steel of the sound device according to the present invention;
FIG. 10 is a top view of a partial three-dimensional sound device of the present invention;
fig. 11 is an enlarged view of a portion shown in B of fig. 10.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a sound generating device 100, which includes a frame 1, a vibration system 2, a magnetic circuit system 3 and a supporting frame 4.
The basin stand 1 is used for supporting the vibration system 2 and the magnetic circuit system 3.
The vibration system 2 comprises a vibrating diaphragm 21 fixed on the basin frame 1, a voice coil 22 for driving the vibrating diaphragm 21 to vibrate and sound, and an elastic support assembly 23 fixed on the basin frame 1 and opposite to and spaced from the vibrating diaphragm 21.
The magnetic circuit system 3 has a magnetic gap 30, and the voice coil 22 is inserted in the magnetic gap 30.
Voice coil 22 fixed connection in vibrating diaphragm 21, one end that support chassis 4 is close to vibrating diaphragm 21 with vibrating diaphragm 21 interval sets up, and its one end of keeping away from vibrating diaphragm 21 with elastic support component 23 is connected.
As shown in fig. 4-6, the supporting frame 4 includes a frame body 41 spaced from the voice coil 22, and a supporting wall 42 formed by bending and extending the frame body 41; specifically, skeleton body 41 fixed connection in elastic support component 23, promptly skeleton body 41 is close to the one end of vibrating diaphragm 21 with vibrating diaphragm 21 interval sets up, and its one end of keeping away from vibrating diaphragm 21 with elastic support component 23 is connected, the laminating of support wall 42 is fixed in the side of voice coil 22, be used for with voice coil 22 elasticity hang in vibrating diaphragm 21 with between the elastic support component 23.
The above structure makes the elastic support component 23 not directly connected with the voice coil 22, but indirectly connected through the support frame 4. 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 22 is not limited by the elastic support component 23 any more, and the overall height of the sound production device 100 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 move 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.
As shown in fig. 6 to 11, in this embodiment, the elastic supporting components 23 together enclose a hollow region 230, and an end of the voice coil 22 away from the diaphragm 21 is located in the hollow region 230; preferably, the elastic support assemblies 23 include two elastic support assemblies 23 respectively located at two opposite sides of the voice coil 22, the two elastic support assemblies 23 surround the hollow area 230, and the two elastic support assemblies 23 respectively support the voice coil 22 on the frame 1 through four support frames 4. The double-elastic supporting component 23 forms a symmetrical structure, so that the voice coil 22 is supported more stably, and the transverse swing of the voice coil 22 is better prevented.
Specifically, the elastic support assembly 23 includes an elastic member 231 and an auxiliary diaphragm 232 attached to the elastic member 231; the skeleton body 41 is fixedly connected to a side of the elastic member 231 away from the auxiliary diaphragm 232.
The elastic member 231 includes a first fixing arm 2311 fixed to the frame 1, two second fixing arms 2312 respectively supported and fixed to two adjacent supporting frames 4, and two elastic arms 2313 respectively extending from the first fixing arm 2311 to the two second fixing arms 2312 and forming a fixed connection.
In this embodiment, 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 the one hand, and introduce an external electrical signal into the voice coil 22 on the other hand, thereby avoiding the problem of easy disconnection when introducing an external electrical signal into the voice coil 22 through a lead wire, and improving the reliability of the voice coil.
The auxiliary diaphragm 232 includes a first gimbal 2321 having an arc-shaped cross section, and a first connection portion 2322 and a second connection portion 2323 respectively extending from two opposite sides of the first gimbal 2321.
The first connection portion 2322 is fixed to a side of the first fixing arm 2311 away from the diaphragm 21, and the second connection portion 2323 is fixed to a side of the second fixing arm 2312 away from the diaphragm 21, so that the first folding ring 2321 is disposed opposite to the elastic arm 2313. The frame body 41 is fixed to a side of the second fixing arm 2312 away from the second connecting portion 2323.
Referring to fig. 4 and fig. 10 to 11, in the present embodiment, preferably, the voice coil 22 is a rectangular structure with rounded corners, and the number of the support frames 4 is four, and the four support frames 4 are respectively located at four rounded 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.
The magnetic circuit system 3 comprises a magnetic yoke 31, a main magnetic steel 32 fixed on the magnetic yoke 31, and two first auxiliary magnetic steels 33 respectively arranged on two opposite sides of the main magnetic steel 32 at intervals and forming the magnetic gap 30 with the main magnetic steel 32; the two first secondary magnetic steels 33 are located between the two elastic support components 23. 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-magnet steel magnetic circuit, taking the voice coil 22 as a rounded rectangular structure as an example, the two first secondary magnets 33 are located on two sides of the long axis of the voice coil 22, and the two elastic support assemblies 23 are located on two sides of the short axis of the voice coil 22. At this time, the three-magnetic steel magnetic circuit structure enables the driving performance of the magnetic circuit system 3 to be excellent, 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 enhance the volume of the magnetic circuit system 3, the magnetic circuit system 3 further includes two second secondary magnet steels 34 respectively disposed at two opposite sides of the main magnet steel 32 at intervals; each of the second secondary magnetic steels 34 is located between two second fixing arms 2312 of the same elastic element 231 on the same side.
Further, with voice coil 22 is for the illustration of the rectangle structure that is the fillet, two first pair magnet steel 33 is located the both sides of the major axis of voice coil 22, two elastic support component 23 is located the both sides of the minor axis of voice coil 22, two the vice magnet steel 34 of second is located the both sides of the minor axis of voice coil 22, and each the vice magnet steel 34 of second is located rather than the homonymy elastic support component 23 with between the voice coil 22. 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.
Preferably, the second secondary magnetic steel 34 includes a magnetic steel body 341 and magnetic steel reinforcing portions 342 formed by extending two ends of a long axis of the magnetic steel body 341, and each of the magnetic steel reinforcing portions 342 extends to between the bobbin body 41 of the corresponding support bobbin 4 and the voice coil 22; preferably, the auxiliary diaphragm 232 is provided with a yielding groove 2320 which is formed by one side of the auxiliary diaphragm close to the voice coil 22 and is recessed towards the basin frame 1, and the magnetic steel body 341 extends into the yielding groove 2320. Through magnet steel body 341 with magnet steel reinforcement 342 with the cooperation setting of groove 2320 of stepping down has guaranteed in the magnetic property of the second pair of magnet steel 34 with form certain space of stepping down between the elastic support subassembly 23, elastic component 231 part accept in the space of stepping down, promptly elastic component 231 has increased the line space of walking, thereby release elastic component 231's design increases elastic arm 2313's length, and then makes elastic component 231's reliability is stronger, makes supplementary sound membrane 232's vibration is more stable.
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 an upper clamp plate 35 and a main pole core 36 covering the main magnetic steel, the upper clamp plate 35 includes a fixing ring 351 fixed to the frame 1 and having a ring shape, and four sub pole cores 352 extending from the fixing ring 351 to the first sub magnetic steel 33 and the second sub magnetic steel 34, the four sub pole cores 352 are respectively stacked on the first sub magnetic steel 33 and the second sub magnetic steel 34, and the sub pole cores 352 are respectively matched with the corresponding first sub magnetic steel 33 or the second sub magnetic steel 34 in shape. By the arrangement of the main pole core 36 and the auxiliary pole core 352, 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 generating device is further improved.
Referring to fig. 3 to 4, in this embodiment, the vibrating diaphragm 21 includes an upper sound film 211 fixed to the frame 1 and a dome 212 fixed to the upper sound film; the upper sound diaphragm 211 comprises a second fold 2111, a first fixing part 2112 and a second fixing part 2113 which extend from two opposite sides of the second fold 2111 respectively, and a vertical wall 2114 which is bent and extends from the first fixing part 2112 to a direction close to the frame 1; the first fixing portion 2112 is fixed at one end of the frame 1, the vertical wall 2114 is glued to the outer side wall of the frame 1, the dome 212 is fixed at the second fixing portion 2113, and the voice coil 22 is glued to the side of the second fixing portion 2113 away from the dome 212. Glue is applied between the first fixing portion 2112 and the frame 1 for gluing, a certain gap is formed between the vertical wall 2114 and the outer side wall of the frame 1 through the arrangement of the vertical wall 2114, and redundant glue between the first fixing portion 2112 and the frame 1 flows into the gap, so that the effect of preventing the glue from overflowing is achieved, the gluing effect of the vibrating diaphragm 21 and the frame 1 is better, and the reliability of the sound generating device 100 is higher.
Compared with the prior art, the voice coil is fixedly connected to the vibrating diaphragm, one end, close to the vibrating diaphragm, of the support framework is arranged at an interval with the vibrating diaphragm, one end, far away from the vibrating diaphragm, of the support framework is connected with the elastic support assembly, the support framework further comprises a support wall, the support wall is attached and fixed to the side face of the voice coil, and the support framework is used for elastically suspending the voice coil below the vibrating diaphragm, so that on one hand, the suppression of transverse swing of the voice coil during vibration is realized, and the stability of the voice coil is improved; on the other hand, the limitation of the elastic support component on the voice coil when the elastic support component is directly connected with the voice coil is eliminated, the height of the voice coil is not limited by the elastic support component any more, and the overall height of the sound production device can be designed to be thinner and lighter; meanwhile, the design limitation on the magnetic circuit system is eliminated, the elastic support component is not directly glued with the bottom of the voice coil, the magnetic circuit system does not need to be abducted, the magnetic circuit system can realize a maximized multi-magnetic steel three-magnetic circuit or five-magnetic circuit structure, and the acoustic performance of the sound production device is effectively improved.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.

Claims (13)

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 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 produce sound, and an elastic support assembly fixed on the basin frame and opposite to the vibrating diaphragm and arranged at intervals, and is characterized in that the sound production device further comprises a support framework; the voice coil is fixedly connected to the vibrating diaphragm, one end, close to the vibrating diaphragm, of the supporting framework is arranged at an interval with the vibrating diaphragm, one end, far away from the vibrating diaphragm, of the supporting framework is connected with the elastic supporting assembly, the supporting framework is attached and fixed to the side face of the voice coil, and the supporting framework is used for elastically suspending the voice coil below the vibrating diaphragm; the support framework comprises a framework body and a support wall, wherein the framework body is spaced from the voice coil by a certain distance, and the support wall is formed by bending and extending the framework body; the framework body is fixedly connected with the elastic supporting assembly, and the supporting wall is attached to the side face of the voice coil.
2. The sounding device according to claim 1, wherein the 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.
3. The sounding device according to claim 1, wherein the number of the supporting skeletons is four, the voice coil is a rectangular structure with round corners, and the four supporting skeletons are respectively located at the positions of the four round corners of the voice coil.
4. The sounding device according to claim 1, wherein the elastic support assembly comprises two elastic support assemblies respectively located at two opposite sides of the voice coil, each elastic support assembly comprises an elastic member and an auxiliary diaphragm attached to the elastic member; the framework body is fixedly connected to one side, far away from the auxiliary vibrating diaphragm, of the elastic piece.
5. The sounder device according to claim 4, wherein the elastic member comprises a first fixing arm fixed to the basin frame, two second fixing arms respectively supported and fixed to two adjacent support skeletons, and two elastic arms respectively extending from the first fixing arm to the two second fixing arms and forming a fixed connection; the auxiliary vibrating diaphragm comprises a first folding ring with an arc-shaped cross section, and a first connecting part and a second connecting part which are respectively extended from two opposite sides of the first folding ring, wherein the first connecting part is fixed on one side of the first fixing arm, which is far away from the vibrating diaphragm, each second connecting part is fixed on one side, which is far away from the vibrating diaphragm, of the second fixing arm on the same side of the second connecting part, and the first folding ring and the elastic arm are oppositely arranged; the framework body is fixed on one side, far away from the second connecting portion, of the second fixing arm.
6. The sounder device according to claim 5, wherein the spring is a flexible circuit board electrically connected to the voice coil.
7. The sounding device according to claim 5, wherein the magnetic circuit system comprises a magnetic yoke, a main magnetic steel fixed on the magnetic yoke, and two first secondary magnetic steels disposed at two opposite sides of the main magnetic steel at intervals and forming the magnetic gap with the main magnetic steel; and the two first auxiliary magnetic steels are positioned between the two elastic supporting components.
8. The sounding device according to claim 7, wherein the voice coil is a rounded rectangular structure, the two first secondary magnetic steels are located on two sides of a long axis of the voice coil, and the two elastic supporting components are located on two sides of a short axis of the voice coil.
9. The sound production device as claimed in claim 7, wherein the magnetic circuit system further comprises two second secondary magnetic steels disposed at intervals on two opposite sides of the main magnetic steel; each second auxiliary magnetic steel is positioned between the two second fixing arms of the same elastic piece on the same side of the second auxiliary magnetic steel.
10. The sounding device according to claim 9, wherein the voice coil is a rounded rectangle, two of the first secondary magnetic steels are located on two sides of the long axis of the voice coil, two of the elastic supporting members are located on two sides of the short axis of the voice coil, two of the second secondary magnetic steels are located on two sides of the short axis of the voice coil, and each of the second secondary magnetic steels is located between the elastic supporting member and the voice coil on the same side of the second secondary magnetic steel.
11. The sounding device according to claim 10, wherein the second secondary magnetic steel comprises a magnetic steel body and magnetic steel reinforcements respectively formed by extending two ends of a long axis of the magnetic steel body, and each of the magnetic steel reinforcements respectively extends to a position between the bobbin body and the voice coil of the corresponding supporting bobbin.
12. The sound production device as claimed in claim 11, wherein the auxiliary diaphragm is provided with a recess recessed from a side thereof close to the voice coil toward the frame, and the magnetic steel body extends into the recess.
13. The sounding device according to claim 12, wherein the magnetic circuit system further comprises a top plate and a main pole core covering the main magnetic steel, the top plate comprises a ring-shaped fixing ring fixed to the frame and four auxiliary pole cores extending from the fixing ring to the first and second auxiliary magnetic steels, the four auxiliary pole cores are respectively stacked on the first and second auxiliary magnetic steels, and the auxiliary pole cores are respectively matched with the corresponding first or second auxiliary magnetic steels in shape.
CN201811162954.7A 2018-09-30 2018-09-30 Sound production device Expired - Fee Related CN109348371B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811162954.7A CN109348371B (en) 2018-09-30 2018-09-30 Sound production device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811162954.7A CN109348371B (en) 2018-09-30 2018-09-30 Sound production device

Publications (2)

Publication Number Publication Date
CN109348371A CN109348371A (en) 2019-02-15
CN109348371B true CN109348371B (en) 2021-02-26

Family

ID=65308186

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811162954.7A Expired - Fee Related CN109348371B (en) 2018-09-30 2018-09-30 Sound production device

Country Status (1)

Country Link
CN (1) CN109348371B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109862477B (en) * 2018-12-29 2021-05-14 瑞声科技(新加坡)有限公司 Sound production device
WO2021000157A1 (en) * 2019-06-30 2021-01-07 瑞声声学科技(深圳)有限公司 Sound generating device
CN111131979B (en) * 2019-12-13 2021-09-10 瑞声科技(新加坡)有限公司 Sound production device
WO2021120011A1 (en) * 2019-12-17 2021-06-24 瑞声声学科技(深圳)有限公司 Sound-producing device
CN213028531U (en) * 2020-07-06 2021-04-20 瑞声科技(新加坡)有限公司 Sound production device
CN111935618B (en) * 2020-08-31 2021-01-22 歌尔股份有限公司 Loudspeaker
CN112423201B (en) * 2020-11-30 2022-01-11 瑞声新能源发展(常州)有限公司科教城分公司 Sound production device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100906274B1 (en) * 2005-12-07 2009-07-06 파나소닉 주식회사 Speaker
CN105681984A (en) * 2016-01-27 2016-06-15 瑞声光电科技(常州)有限公司 Loudspeaker
CN107968979A (en) * 2017-12-27 2018-04-27 Tcl通力电子(惠州)有限公司 Microphone device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4569476B2 (en) * 2006-01-17 2010-10-27 パナソニック株式会社 Speaker
CN101990150A (en) * 2009-08-05 2011-03-23 鸿富锦精密工业(深圳)有限公司 Loudspeaker
CN103379415A (en) * 2012-04-27 2013-10-30 鸿富锦精密工业(深圳)有限公司 Loudspeaker
CN108322869B (en) * 2018-01-24 2021-01-15 瑞声科技(新加坡)有限公司 Sound production device
CN208924469U (en) * 2018-09-30 2019-05-31 瑞声科技(新加坡)有限公司 Microphone device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100906274B1 (en) * 2005-12-07 2009-07-06 파나소닉 주식회사 Speaker
CN105681984A (en) * 2016-01-27 2016-06-15 瑞声光电科技(常州)有限公司 Loudspeaker
CN107968979A (en) * 2017-12-27 2018-04-27 Tcl通力电子(惠州)有限公司 Microphone device

Also Published As

Publication number Publication date
CN109348371A (en) 2019-02-15

Similar Documents

Publication Publication Date Title
CN109348371B (en) Sound production device
CN109348370B (en) Sound production device
CN109889964B (en) Sound production device
US11240605B2 (en) Sounding device
CN109362005B (en) Sound production device
CN109379679B (en) Sound production device
CN109862477B (en) Sound production device
CN109379680B (en) Sound production device
CN111405431B (en) Sound production device and loudspeaker box thereof
CN208924469U (en) Microphone device
CN110035362B (en) Loudspeaker
CN109348373B (en) Sound production device
CN109889965B (en) Sound production device
CN111093138B (en) Sound production device
CN111641907B (en) Sound production device
CN109362002B (en) Sound production device
CN210016629U (en) Electroacoustic device
CN210641017U (en) Sound production device
CN110022517B (en) Sound production device
CN109379681B (en) Sound production device
CN209897257U (en) Sound production device
CN109275075B (en) Sound production device
CN109831723B (en) Sounding device and assembling method thereof
CN109348372B (en) Sound production device
CN208924468U (en) Microphone device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20210226

Termination date: 20210930