CN214101747U

CN214101747U - Vibrating diaphragm structure and sound production monomer

Info

Publication number: CN214101747U
Application number: CN202023202065.4U
Authority: CN
Inventors: 肖波; 令狐荣林; 孔晨亮
Original assignee: AAC Acoustic Technologies Shenzhen Co Ltd; AAC Optoelectronic Changzhou Co Ltd
Current assignee: AAC Technologies Holdings Shenzhen Co Ltd; AAC Microtech Changzhou Co Ltd; AAC Optoelectronic Changzhou Co Ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-08-31
Anticipated expiration: 2030-12-25

Abstract

The utility model provides a vibrating diaphragm structure and a sound production monomer, wherein the vibrating diaphragm structure comprises an inner vibrating diaphragm, an outer vibrating diaphragm, a framework and a ball top, the outer vibrating diaphragm is spaced and surrounds the inner vibrating diaphragm, the framework is used for connecting and supporting the inner vibrating diaphragm and the outer vibrating diaphragm, and the ball top is laminated and pasted on the framework; the skeleton includes the outer supporting part of being connected with outer vibrating diaphragm, the interior supporting part of being connected with interior vibrating diaphragm and is used for connecting the transition connecting portion of outer supporting part and interior supporting part, and the ball top subsides are established on transition connecting portion. Because the skeleton includes outer supporting part, interior supporting part and transition connecting portion, outer supporting part is used for supporting outer vibrating diaphragm, interior supporting part is used for supporting interior vibrating diaphragm, the ball top subsides are established on transition connecting portion, not only can make full use of connect the natural transition region of the skeleton of outer vibrating diaphragm and interior vibrating diaphragm, can paste through the ball top again and establish with the support chassis on the skeleton, so improved the torsional resistance and the anti ability of swaing of skeleton, the life of vibrating diaphragm structure has been improved, the free acoustic performance of sound production and the life of using this vibrating diaphragm structure have also been improved.

Description

Vibrating diaphragm structure and sound production monomer

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electroacoustic field especially relates to a vibrating diaphragm structure and sound production monomer.

[ background of the invention ]

Some sound production monomers in the correlation technique, it has outer vibrating diaphragm and interior vibrating diaphragm to link together outer vibrating diaphragm and interior vibrating diaphragm through the exoskeleton, and transmit the vibration of voice coil loudspeaker voice coil to outer vibrating diaphragm and interior vibrating diaphragm through the skeleton, however, because the torsional resistance and the anti ability of swaying of skeleton are not good, especially after long in certain use, the torsional resistance and the anti ability of swaying of skeleton can change, cause the amplitude of skeleton can change, cause the free sound production performance of sound production to reduce.

Therefore, it is necessary to provide a novel diaphragm structure and a sound generating unit to solve the above problems.

[ Utility model ] content

An object of the utility model is to provide a vibrating diaphragm structure and sound production monomer, this vibrating diaphragm structure can strengthen the antitorque ability and the anti ability of swaing of skeleton, improves the free sound production performance of sound production, and has increased the free life of sound production.

The technical scheme of the utility model as follows: a vibrating diaphragm structure comprises an inner vibrating diaphragm, an outer vibrating diaphragm, a framework and a ball top, wherein the outer vibrating diaphragm is spaced and surrounds the inner vibrating diaphragm, the framework is used for connecting and supporting the inner vibrating diaphragm and the outer vibrating diaphragm, and the ball top is laminated and attached to the framework;

the skeleton include with outer supporting part that outer vibrating diaphragm is connected, with interior supporting part that interior vibrating diaphragm is connected and be used for connecting outer supporting part with the transition connecting portion of interior supporting part, the ball top subsides are established on the transition connecting portion.

As an embodiment of the utility model, outer supporting part with interior supporting part parallel arrangement just outer supporting part with interior supporting part is established in the level of difference, transition connecting portion include with the plane portion that outer supporting part is connected and certainly the plane portion internal periphery is buckled and is extended formation and with the cambered surface portion that interior supporting part is connected, plane portion with outer supporting part is located same level, the ball top is established including pasting first ball top portion on the plane portion and certainly the internal periphery of first ball top portion is buckled and is extended formation and paste and establish second ball top portion on the cambered surface portion.

As an embodiment of the utility model, outer vibrating diaphragm includes outer loop portion, certainly outer fixed part that the outer peripheral edge of outer loop portion extends the formation and certainly the internal peripheral edge of outer loop portion extends the first interior fixed part that forms, outer supporting part is used for supporting and connects first interior fixed part.

As an embodiment of the utility model, the interior vibrating diaphragm includes infolding ring portion, certainly outer fixed part of second that the outer peripheral edges of infolding ring portion extend and form and certainly the internal fixed part of second that the internal peripheral edges of infolding ring portion extend and form, the outer fixed part butt of second is in on the internal support portion.

The utility model discloses a another technical scheme as follows: a sounding monomer comprises a magnetic circuit system with a magnetic gap, a diaphragm structure, a voice coil and a basin frame, wherein the diaphragm structure is used for driving the diaphragm structure to vibrate and is suspended in the magnetic gap, and the basin frame is used for mounting the magnetic circuit system and the diaphragm structure.

As an embodiment of the utility model, outer vibrating diaphragm includes outer dog collar portion, certainly outer peripheral edges of outer dog collar portion extend the first outer fixed part that forms and certainly the internal peripheral edges of outer dog collar portion extend the first interior fixed part that forms, interior vibrating diaphragm includes interior dog collar portion, certainly the outer fixed part of second that the external peripheral edges of interior dog collar portion extend the formation and certainly fixed part in the second that the internal peripheral edges of interior dog collar portion extend the formation, outer supporting part is used for supporting and connects first interior fixed part, interior supporting part is used for supporting and fixes the outer fixed part of second, the basin frame is including being used for supporting and connecting the outer support of first outer fixed part and being used for supporting and connecting the inner support of fixed part in the second.

As an embodiment of the utility model, the vibrating diaphragm structure still include with the relative lower vibrating diaphragm that just the interval set up of outer vibrating diaphragm, lower vibrating diaphragm include with the lower ring portion that rolls over that outer ring portion corresponds, certainly the outer peripheral edges of the ring portion that rolls over down extend to form and the butt be in the outer support is with being connected the opposite one of outer vibrating diaphragm and serve one the first fixed part and certainly the interior peripheral edges of the ring portion that rolls over down extend to form and the butt is in the skeleton is with being connected the opposite one of outer vibrating diaphragm and serve the second fixed part.

As an embodiment of the utility model, outer supporting part with interior supporting part parallel arrangement, just the plane at interior supporting part place compare in the plane at outer supporting part place is closer to lower vibrating diaphragm, the outer fixed part butt of second is in on the interior supporting part.

As an embodiment of the utility model, magnetic circuit include the yoke, set up in the first main magnet steel of yoke central authorities, set up in on the yoke and encircle first main magnet steel sets up with forming the vice magnet steel in magnetic gap, attached in main pole core on the first main magnet steel, encircle the main pole core is attached vice pole core on the vice magnet steel and attached in second main magnet steel on the main pole core, interior vibrating diaphragm encircles second main magnet steel sets up.

As an embodiment of the utility model, the second main magnet steel includes the butt basal portion on the main pole core and keeps away from the protruding top that forms of direction of main pole core from the middle part orientation of basal portion, the inner support is including encircleing the side portion that the top set up and certainly the side portion orientation the one end of basal portion is to keeping away from the step portion that the direction bending type of top formed, the step portion butt is in on the basal portion, fixed part butt is in the second on the step portion, the step portion be on a parallel with the inner support portion, just step portion place plane compare in the plane distance of inner support portion place the vibrating diaphragm is farther down.

The beneficial effects of the utility model reside in that:

the utility model provides a vibrating diaphragm structure, because the skeleton includes outer supporting part, interior supporting part and transition connecting portion, outer supporting part is used for supporting outer vibrating diaphragm, interior supporting part is used for supporting interior vibrating diaphragm, and the ball top subsides are established on transition connecting portion, not only can make full use of connect the natural transition region (transition connecting portion promptly) of the skeleton of outer vibrating diaphragm and interior vibrating diaphragm, can establish on the skeleton through range upon range of subsides with the ball top again in order to be used for supporting the skeleton, so the torsional resistance and the anti ability of swaing of skeleton have been improved, the life of vibrating diaphragm structure has been improved, the free acoustic performance of sound production and the life of using this vibrating diaphragm structure have also been improved.

[ description of the drawings ]

Fig. 1 is a schematic view of an overall structure of a sound generating unit according to an embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 1;

FIG. 4 is a schematic view of the structure of FIG. 1 cut along a plane;

FIG. 5 is an enlarged partial view of the portion B in FIG. 4;

FIG. 6 is a schematic structural view of the skeleton of FIG. 1;

100. a diaphragm structure; 110. an inner diaphragm; 111. an inward-folded ring part; 112. a second outer fixing portion; 113. A second inner fixing portion; 120. an outer diaphragm; 121. an outer collar portion; 122. a first outer fixing portion; 123. A first inner fixing portion; 130. a framework; 131. an outer support portion; 132. an inner support portion; 133. a transition connection; 1331. a planar portion; 1332. an arc surface portion; 134. a support section; 140. a ball top; 141. A first ball top; 142. a second ball top; 150. a lower diaphragm; 151. a lower dog collar portion; 152. a first fixed part; 153. a second fixed part; 200. a voice coil; 300. a magnetic circuit system; 301. a magnetic gap; 310. a magnetic yoke; 320. a first main magnetic steel; 330. a secondary magnetic steel; 340. a main pole core; 350. a secondary pole core; 360. a second main magnetic steel; 361. a base; 362. a top portion; 400. a basin stand; 410. an outer support; 420. an inner support; 421. a side edge portion; 422. a step portion; 500. a flexible circuit board.

[ detailed description ] embodiments

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will be further described with reference to the accompanying drawings and embodiments.

Referring to fig. 1 to 6, an embodiment of the present invention provides a sounding unit, where the sounding unit in this embodiment includes a diaphragm structure 100, a voice coil 200 connected to the diaphragm structure 100, a magnetic circuit 300 for driving the voice coil 200 to vibrate, and a basin stand 400 for mounting the diaphragm structure 100 and the magnetic circuit 300.

Referring to fig. 2-6, in an embodiment, the diaphragm structure 100 includes an inner diaphragm 110, an outer diaphragm 120 spaced apart from and disposed around the inner diaphragm 110, a skeleton 130 for connecting and supporting the inner diaphragm 110 and the outer diaphragm 120, and a dome 140 stacked and attached on the skeleton 130; the frame 130 includes an outer support portion 131 connected to the outer diaphragm 120, an inner support portion 132 connected to the inner diaphragm 110, and a transition connection portion 133 for connecting the outer support portion 131 and the inner support portion 132, and the dome 140 is attached to the transition connection portion 133. Because the framework 130 comprises the outer supporting part 131, the inner supporting part 132 and the transition connecting part 133, the outer supporting part 131 is used for supporting the outer vibrating diaphragm 120, the inner supporting part 132 is used for supporting the inner vibrating diaphragm 110, and the ball top 140 is attached to the transition connecting part 133, not only can the natural transition region (namely the transition connecting part 133) of the framework 130 connecting the outer vibrating diaphragm 120 and the inner vibrating diaphragm 110 be fully utilized, but also the ball top 140 can be attached to the framework 130 in a stacking manner to be used for supporting the framework 130, so that the torsion resistance and the swing resistance of the framework 130 are improved, the service life of the vibrating diaphragm structure 100 is prolonged, and the acoustic performance and the service life of a sound generating unit using the vibrating diaphragm structure 100 are also improved.

Preferably, the outer support portion 131 is parallel to the inner support portion 132, the outer support portion 131 and the inner support portion 132 are respectively disposed in different horizontal planes, the transition portion 133 includes a plane portion 1331 connected to the outer support portion 131 and an arc portion 1332 bent and extended from an inner periphery of the plane portion 1331 and connected to the inner support portion 132, the plane portion 1331 and the outer support portion 131 are located in the same horizontal plane, and the dome 140 includes a first dome portion 141 attached to the plane portion 1331 and a second dome portion 142 bent and extended from an inner periphery of the first dome portion 141 and attached to the arc portion 1332.

Further, the dome 140 is adhered to the transition connection portion 133.

Specifically, the outer diaphragm 120 includes an outer loop portion 121, a first outer fixing portion 122 formed by extending from an outer circumference of the outer loop portion 121, and a first inner fixing portion 123 formed by extending from an inner circumference of the outer loop portion 121, the outer supporting portion 131 is used for supporting and connecting the first inner fixing portion 123, and the first outer fixing portion 122 abuts on the frame 400.

In addition, the inner diaphragm 110 includes an inward-folded ring portion 111, a second outer fixing portion 112 formed by extending from an outer peripheral edge of the inward-folded ring portion 111, and a second inner fixing portion 113 formed by extending from an inner peripheral edge of the inward-folded ring portion 111, and the inner supporting portion 132 is used for supporting and connecting the second outer fixing portion 112.

Preferably, the basin frame 400 comprises an outer frame 410 for supporting and connecting the first outer fixing portion 122 and an inner frame 420 for supporting and connecting the second inner fixing portion 113, preferably the inner frame 420 abuts on the magnetic circuit system 300.

Referring to fig. 2 to 5, in an embodiment, the diaphragm structure 100 further includes a lower diaphragm 150 opposite to the outer diaphragm 120 and disposed at an interval, where the lower diaphragm 150 includes a lower folded ring portion 151 corresponding to the outer folded ring portion 121, a first fixing portion 152 extending from an outer peripheral edge of the lower folded ring portion 151 and abutting on an end of the outer frame 410 opposite to the end connected to the outer diaphragm 120, and a second fixing portion 153 extending from an inner peripheral edge of the lower folded ring portion 151 and abutting on an end of the skeleton 130 opposite to the end connected to the outer diaphragm 120.

Specifically, the outer support portion 131 and the inner support portion 132 are disposed in parallel, the outer support portion 131 and the inner support portion 132 are disposed in different horizontal planes, the plane of the inner support portion 132 is closer to the lower diaphragm 150 than the plane of the outer support portion 131, and the second outer fixing portion 112 abuts on the inner support portion 132.

Referring to fig. 6, specifically, the frame 130 further includes a supporting portion 134 formed by bending from an outer periphery of the outer supporting portion 131 toward the lower diaphragm 150, and the second fixing portion 153 abuts on an end of the supporting portion 134 facing the lower diaphragm 150.

Further, the sounding unit further includes a flexible circuit board 500 interposed between the lower diaphragm 150 and the frame 400, the flexible circuit board 500 is connected to the voice coil 200 to conduct electricity to the voice coil 200, the flexible circuit board 500 abuts against the bobbin 130, specifically, the first fixing portion 152 abuts against a position of the flexible circuit board 500 corresponding to the frame 400, and the second fixing portion 153 abuts against a position of the flexible circuit board 500 corresponding to the supporting portion 134.

In a specific embodiment, the protruding direction of the outer folded ring part 121 is opposite to the protruding direction of the inner folded ring part 111, and the protruding direction of the outer folded ring part 121 is the same as the protruding direction of the lower folded ring part 151.

Further, the convex direction of the outer hinge part 121 faces the lower hinge part 151.

Referring to fig. 2-5, in an embodiment, the magnetic circuit system 300 includes a yoke 310, a first main magnetic steel 320 disposed in the center of the yoke 310, an auxiliary magnetic steel 330 disposed on the yoke 310 and surrounding the first main magnetic steel 320 to form a magnetic gap 301, a main pole core 340 attached to the first main magnetic steel 320, an auxiliary pole core 350 surrounding the main pole core 340 and attached to the auxiliary magnetic steel 330, and a second main magnetic steel 360 attached to the main pole core 340, wherein the voice coil 200 is suspended in the magnetic gap 301, and the inner support 420 surrounds and abuts the second main magnetic steel 360.

Specifically, the second main magnetic steel 360 includes a base 361 abutting on the main pole core 340 and a top 362 convexly formed from a middle portion of the base 361 toward a direction away from the main pole core 340, the inner bracket 420 includes a side portion 421 surrounding the top 362 and a step portion 422 bent from the side portion 421 toward one end of the base 361 toward the direction away from the top 362, the step portion 422 abuts on the base 361, the second inner fixing portion 113 abuts on the step portion 422, the step portion 422 is parallel to the inner supporting portion 132, and a plane of the step portion 422 is farther from the lower diaphragm 150 than a plane of the inner supporting portion 132.

Further, the edge of the auxiliary pole core 350 is fixedly connected with one end of the frame 400 facing the lower diaphragm 150, specifically, the auxiliary pole core 350 is fixedly connected with the part of the frame 400 not connected with the flexible circuit board 500.

The above are only embodiments of the present invention, 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

1. A diaphragm structure, its characterized in that: the vibration isolation device comprises an inner vibrating diaphragm, an outer vibrating diaphragm, a framework and a ball top, wherein the outer vibrating diaphragm is spaced and surrounds the inner vibrating diaphragm, the framework is used for connecting and supporting the inner vibrating diaphragm and the outer vibrating diaphragm, and the ball top is laminated and attached to the framework;

2. The diaphragm structure of claim 1, wherein: outer supporting part with interior supporting part parallel arrangement just outer supporting part with interior supporting part establishes in the different levels, transition connecting portion include with the plane portion that outer supporting part is connected and certainly the plane portion internal periphery is buckled and is extended formation and with the cambered surface portion that interior supporting part is connected, plane portion with outer supporting part is located same level in, the dome is established including pasting first dome portion on the plane portion and certainly the internal periphery of first dome portion is buckled and is extended formation and paste and establish second dome portion on the cambered surface portion.

3. The diaphragm structure of claim 2, wherein: the outer vibrating diaphragm comprises an outer folding ring part, a first outer fixing part and a first inner fixing part, wherein the first outer fixing part is formed by extending the outer periphery of the outer folding ring part, the first inner fixing part is formed by extending the inner periphery of the outer folding ring part, and the outer supporting part is used for supporting and connecting the first inner fixing part.

4. The diaphragm structure of claim 3, wherein: the inner vibrating diaphragm comprises an inward-folding ring part, a second outer fixing part formed by extending the outer periphery of the inward-folding ring part and a second inner fixing part formed by extending the inner periphery of the inward-folding ring part, and the second outer fixing part is abutted to the inner supporting part.

5. A sounding monomer is characterized in that: comprising a magnetic circuit having a magnetic gap, a diaphragm structure as claimed in claim 1, a voice coil for driving the diaphragm structure to vibrate and suspended in the magnetic gap, and a frame for mounting the magnetic circuit and the diaphragm structure.

6. The sound generating unit of claim 5, wherein: outer vibrating diaphragm includes outer book ring portion, certainly outer fixed part that forms and certainly is extended to the outer peripheral edges of outer book ring portion the first interior fixed part that forms is extended to the inner peripheral edges of outer book ring portion, interior vibrating diaphragm includes interior book ring portion, certainly the outer fixed part of second that the outer peripheral edges of interior book ring portion extend the formation and certainly the interior fixed part of second that the inner peripheral edges of interior book ring portion extend the formation, outer supporting part is used for supporting and connects first interior fixed part, interior supporting part is used for supporting and fixing the outer fixed part of second, the basin frame is including being used for supporting and connecting the outer support of first outer fixed part and being used for supporting and connecting the inner support of second interior fixed part.

7. The sound generating unit of claim 6, wherein: the vibrating diaphragm structure still include with the relative lower vibrating diaphragm that just the interval set up of outer vibrating diaphragm, lower vibrating diaphragm include with the lower ring portion that rolls over that outer ring portion corresponds, certainly the outer peripheral edges of the ring portion that rolls over down extend to form and the butt is in the outer support is in with being connected outer vibrating diaphragm one end first fixed part and certainly the inner peripheral edges that rolls over down ring portion extend to form and the butt is in the skeleton is in with being connected outer vibrating diaphragm one end second fixed part on opposite.

8. The sound generating unit of claim 7, wherein: the outer supporting portion and the inner supporting portion are arranged in parallel, the plane where the inner supporting portion is located is closer to the lower vibrating diaphragm than the plane where the outer supporting portion is located, and the second outer fixing portion abuts against the inner supporting portion.

9. The sound generating unit of claim 8, wherein: the magnetic circuit system comprises a magnetic yoke, first main magnetic steel arranged in the center of the magnetic yoke, auxiliary magnetic steel arranged on the magnetic yoke and surrounding the first main magnetic steel to form the magnetic gap, a main pole core attached to the first main magnetic steel, an auxiliary pole core surrounding the main pole core and attached to the auxiliary magnetic steel, and second main magnetic steel attached to the main pole core, wherein the inner vibrating diaphragm is arranged surrounding the second main magnetic steel.

10. The sound generating unit of claim 9, wherein: the second main magnetic steel comprises a base abutted to the main pole core and a top formed by protruding from the middle of the base towards the direction far away from the main pole core, the inner support comprises a side portion arranged around the top and a step portion formed by bending from one end of the side portion towards the base towards the direction far away from the top, the step portion is abutted to the base, the second inner fixing portion is abutted to the step portion, the step portion is parallel to the inner supporting portion, and the plane of the step portion is farther away from the lower vibrating diaphragm than the plane of the inner supporting portion.