CN213462268U - Loudspeaker - Google Patents

Abstract

The utility model provides a loudspeaker, its characterized in that: including the casing that has accommodating space and accept in the vibration system of casing and be used for driving vibration system's magnetic circuit, vibration system includes the vibrating diaphragm, is used for driving the voice coil loudspeaker voice coil of vibrating diaphragm vibration sound production and is used for transmitting the skeleton of voice coil loudspeaker voice coil vibration to the vibrating diaphragm, and the voice coil loudspeaker voice coil is fixed on the skeleton, goes up the vibrating diaphragm and connects on the skeleton, and the speaker still includes a plurality of weight that increase, and a plurality of weight settings are in on the skeleton. The voice coil loudspeaker voice coil is held in on the skeleton, go up the vibrating diaphragm and connect on the skeleton to can be through the skeleton with the vibration conduction of voice coil loudspeaker voice coil to supreme vibrating diaphragm on, and then drive the vibration of vibrating diaphragm, the speaker still includes a plurality of weight that increase, will be a plurality of increase weight setting is on the skeleton, thereby can strengthen skeleton bulk strength, promotes the high frequency performance of speaker, has reduced the pure tone problem that sways and arouse simultaneously, has improved the acoustic performance of speaker.

Description

Loudspeaker

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electroacoustic field especially relates to a speaker.

[ background of the invention ]

In the current mobile internet era, the number of intelligent mobile terminal devices is increasing continuously, and the requirements for mobile terminals are higher and higher, one of which is the sound quality function requiring high quality.

Loudspeaker among the correlation technique, the arm of force of skeleton as a conduction vibration for transmit the vibration of voice coil loudspeaker voice coil to the vibrating diaphragm, and then make the speaker sound production, but under the limited circumstances of skeleton young modulus, because the intensity of skeleton is not enough, the vibration characteristic of elastomer can appear during skeleton high-frequency vibration for the phase difference appears in voice coil loudspeaker voice coil and vibrating diaphragm vibration, and the high frequency response falls, sways the aggravation, causes the acoustic performance of speaker not good.

Therefore, there is a need to provide a new speaker to solve the above problems.

[ Utility model ] content

An object of the utility model is to provide a loudspeaker, this loudspeaker acoustic performance is better.

The technical scheme of the utility model as follows: the utility model provides a loudspeaker, including the casing that has accommodating space and accept in vibration system in the casing with be used for the drive vibration system's magnetic circuit, vibration system includes the vibrating diaphragm, is used for the drive go up the voice coil loudspeaker voice coil of vibrating diaphragm vibration sound production and be used for transmitting the vibration of voice coil loudspeaker voice coil extremely go up the vibrating diaphragm and be used for fixing the skeleton of voice coil loudspeaker voice coil, it connects to go up the vibrating diaphragm on the skeleton, loudspeaker still includes a plurality of weight increase pieces, and is a plurality of weight increase piece sets up on the skeleton.

As a further aspect, the upper diaphragm includes a first diaphragm and a second diaphragm, the first diaphragm and the second diaphragm are located on two opposite sides of the magnetic circuit system, and the first diaphragm and the second diaphragm are respectively fixed between the casing and the magnetic circuit system, the frame includes a first holding portion for accommodating and holding the voice coil, a first supporting portion for supporting the first diaphragm, a second supporting portion for supporting the second diaphragm, a first connecting portion for connecting the first supporting portion and the first holding portion, and a second connecting portion for connecting the second supporting portion and the first holding portion, the first supporting portion and the second supporting portion are connected to two sides of the first holding portion, and the weighting blocks are disposed on the first connecting portion and the second connecting portion.

Further, the first supporting part comprises a first supporting bottom wall and a first annular side wall formed by extending from the periphery of the first supporting bottom wall to be perpendicular to the first supporting bottom wall, and the first connecting part is connected with the first annular side wall; the second supporting portion comprises a second supporting bottom wall and a second annular side wall formed by extending from the periphery of the second supporting bottom wall to be perpendicular to the second supporting bottom wall, and the second connecting portion is connected with the second annular side wall.

As a further example, the first diaphragm includes a first ring-folding portion, a first fixing portion formed by extending from an outer periphery of the first ring-folding portion, and a first spherical top portion formed by extending from an inner periphery of the first ring-folding portion, the first spherical top portion is connected to the first supporting portion, and the first fixing portion includes a first fixing edge portion fixed to the housing and a second fixing edge portion fixed to the magnetic circuit system and connected to two ends of the first fixing edge portion, respectively; the second diaphragm comprises a second flange part, a second fixing part and a second ball top part, the second fixing part is formed by extending the outer periphery of the second flange part, the second ball top part is formed by extending the inner periphery of the second flange part, the second ball top part is connected to the second supporting part, and the second fixing part comprises a third fixing edge part and a fourth fixing edge part, the third fixing edge part is fixed to the shell, the fourth fixing edge part is fixed to the magnetic circuit system, and the fourth fixing edge part is connected with the two ends of the third fixing edge part respectively.

As a further step, the vibration system further includes a lower vibration diaphragm disposed opposite to the upper vibration diaphragm at an interval, the lower vibration diaphragm includes a third vibration diaphragm and a fourth vibration diaphragm, the third vibration diaphragm includes a third folded ring portion, a third fixing portion formed by extending from an outer periphery of the third folded ring portion, and a first fixing edge formed by extending from an inner periphery of the third folded ring portion, the fourth vibration diaphragm includes a fourth folded ring portion, a fourth fixing portion formed by extending from an outer periphery of the fourth folded ring portion, and a second fixing edge formed by extending from an inner periphery of the fourth folded ring portion, the third fixing portion is disposed on the housing, the fourth fixing portion is disposed on the housing, the first annular side wall extends in a direction away from an end of the first support bottom wall toward an inner side wall of the housing to form a first support edge, the second annular side wall extends in a direction away from an end of the second support bottom wall toward the inner side wall of the housing to form a second support edge, the first fixed edge is arranged on the first supporting edge, the second fixed edge is arranged on the second supporting edge, the third folding ring portion is arranged opposite to the first folding ring portion, and the fourth folding ring portion is arranged opposite to the second folding ring portion.

Furthermore, the loudspeaker further comprises a flexible circuit board for elastically supporting the vibration system, wherein the flexible circuit board is clamped between the upper vibrating diaphragm and the lower vibrating diaphragm, and the lower vibrating diaphragm is arranged on the flexible circuit board.

Further, the first holding portion, the first connecting portion, the second connecting portion, the first supporting portion, and the second supporting portion are integrally formed.

Further, the shell comprises a basin frame and a bottom cover which is matched with the basin frame to form an accommodating space, the shell further comprises an upper cover, and the first fixing edge part and the third fixing edge part are respectively fixed on the basin frame; the second fixed edge and the fourth fixed edge are respectively clamped and fixed between the upper cover and the magnetic circuit system.

As a further step, the voice coil is rectangular and annular, the housing is rectangular and annular, the long side of the voice coil faces the width direction of the housing, and the first diaphragm and the second diaphragm are located on two sides of the long side of the voice coil.

Furthermore, the magnetic circuit system comprises a magnetic yoke fixedly connected to the middle of the shell, a main magnetic steel assembled in the center of the magnetic yoke, an auxiliary magnetic steel assembled on the magnetic yoke and arranged around the main magnetic steel to form a magnetic gap, a main pole core attached above the main magnetic steel, and an auxiliary pole core attached to the auxiliary magnetic steel, wherein the voice coil is suspended in the magnetic gap, the framework further comprises a second fixing part which is formed on the first connecting part and the second connecting part and provided with a containing cavity, the auxiliary magnetic steel is contained in the containing cavity, and the voice coil abuts against the second fixing part.

The beneficial effects of the utility model reside in that: the voice coil loudspeaker voice coil is held in on the skeleton, go up the vibrating diaphragm and connect on the skeleton to can be through the skeleton with the vibration conduction of voice coil loudspeaker voice coil to supreme vibrating diaphragm on, and then drive the vibration of vibrating diaphragm, the speaker still includes a plurality of weight blocks, will a plurality of weight blocks that increase set up on the skeleton, thereby can strengthen skeleton bulk strength, promote the high frequency performance of speaker, reduced the pure tone problem that sways and arouse simultaneously, improved the acoustic performance of speaker.

[ description of the drawings ]

Fig. 1 is a schematic overall structure diagram of a speaker according to an embodiment of the present invention;

FIG. 2 is an exploded schematic view of the loudspeaker of FIG. 1;

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

fig. 4 is a schematic view of a portion of the loudspeaker of fig. 1;

fig. 5 is another schematic structural diagram of a portion of the loudspeaker of fig. 1;

FIG. 6 is a schematic view of the skeleton and weighted assembly structure of FIG. 1;

fig. 7 is a schematic structural diagram of the magnetic circuit system in fig. 1;

in the figure: 1. a housing; 11. a basin stand; 111. a fitting portion; 12. a bottom cover; 13. an upper cover; 131. a first pressing part; 132. a second pressing part; 2. a vibration system; 21. an upper vibrating diaphragm; 211. a first diaphragm; 2111. a first hinge part; 2112. a first fixed part; 2112a, a first fixed edge; 2112b, a first fixed edge; 2113. a first ball top; 2113a, a first support inner edge; 2113b, a first splint; 2113c, first cut center hole; 212. a second diaphragm; 2121. a second flange part; 2122. a second fixed part; 2122a, a third fixing edge; 2122b, a fourth fixing edge; 2123. a second ball top; 2123a, a second supporting inner edge; 2123b, a second splint; 2123c, second cutting the middle hole; 22. a lower diaphragm; 221. a third diaphragm; 2211. a third hinge part; 2212. a third fixed part; 2213. a first fixed edge; 222. a fourth diaphragm; 2221. a fourth hinge part; 2222. a fourth fixing part; 2223. a second fixed edge; 23. a voice coil; 24. a framework; 241. a first holding portion; 242. a first support section; 2421. a first support bottom wall; 2422. a first annular sidewall; 2423. a first avoidance cavity; 2424. a first support edge; 243. a second support portion; 2431. a second support bottom wall; 2432. a second annular sidewall; 2433. a second avoidance cavity; 2434. a second support edge; 244. a first connection portion; 2441. a first mounting groove; 245. a second connecting portion; 2451 a second mounting groove; 246. a second holding portion; 2461. an accommodating cavity; 3. a magnetic circuit system; 31. a magnetic yoke; 32. main magnetic steel; 33. a secondary magnetic steel; 34. a main pole core; 35. a secondary pole core; 4. a flexible circuit board; 41. a first connecting edge; 42. a second connecting edge; 43. a spring arm; 5. and (4) increasing the weight.

[ 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 7, an embodiment of the present invention provides a speaker, which includes a housing 1 having an accommodating space, a vibration system 2 accommodated in the housing 1, a magnetic circuit system 3 for driving the vibration system 2, and a flexible circuit board 4 for supporting the vibration system 2.

Referring to fig. 1 and 7, the housing 1 in this embodiment includes a basin frame 11 and a bottom cover 12 assembled with the basin frame 11 to form an accommodating space, the housing 1 further includes an upper cover 13, the upper cover 13 is disposed on the basin frame 11, and preferably, the upper cover 13 is adapted to the magnetic circuit system 3 in size to cover the magnetic circuit system 3.

Referring to fig. 2 to 4, the vibration system 2 of the present embodiment is used for generating sound, specifically, the vibration system 2 includes an upper diaphragm 21, a lower diaphragm 22 opposite to the upper diaphragm 21 and spaced apart from the upper diaphragm 21, a voice coil 23 for driving the upper diaphragm 21 to generate sound by vibration, and a framework 24 for transmitting the vibration of the voice coil 23 to the upper diaphragm 21, where the upper diaphragm 21 is used for generating sound by vibration, and the lower diaphragm 22 is used for reinforcing the vibration of the upper diaphragm 21, and can prevent the polarization of the upper diaphragm 21, and can improve the acoustic performance of the speaker, specifically, the voice coil 23 is fixed on the framework 24, and the upper diaphragm 21 is connected to the framework 24, so that the vibration of the voice coil 23 can be transmitted to the diaphragm.

In the correlation technique, under the condition that 24 young's modulus of skeleton is restricted, because the intensity of skeleton 24 is not enough, the vibration characteristic of elastomer can appear when 24 high-frequency vibration of skeleton for voice coil 23 and vibrating diaphragm vibration phase difference appears, and the high frequency response falls, sways the aggravation, causes the acoustic performance of speaker not good. Referring to fig. 2 and 5, the speaker of the present embodiment further includes a plurality of weight increasing blocks 5, preferably metal blocks, the weight increasing blocks 5 are disposed on the framework 24, and the weight increasing blocks 5 are disposed on the framework 24, so as to enhance the overall strength of the framework 24, improve the high-frequency performance of the speaker, reduce the pure sound problem caused by the swing, and improve the acoustic performance of the speaker.

Preferably, the plurality of weight increasing blocks 5 are regularly arranged around the center of mass of the framework 24 so that the center of mass of the framework 24 after the weight increasing blocks 5 are added is not changed.

Referring to fig. 2 to 5, the upper diaphragm 21 in this embodiment includes a first diaphragm 211 and a second diaphragm 212, the first diaphragm 211 and the second diaphragm 212 are located at two opposite sides of the magnetic circuit system 3, the first diaphragm 211 and the second diaphragm 212 are respectively fixed on the magnetic circuit system 3 and one end of the frame 11 away from the lower diaphragm 22, the first diaphragm 211 and the second diaphragm 212 are located between the magnetic circuit system 3 and the frame 11, in the accommodating space of the housing 1, the voice coil 23 only occupies a part of the space, the magnetic circuit system 3 is similar to the voice coil 23 in size, so that in this embodiment, the voice coil 23 and the magnetic circuit system 3 only occupy a part of the space between the first diaphragm 211 and the second diaphragm 212, and a part of the space opposite to the first diaphragm 211 and the second diaphragm 212 can be used for placing the flexible circuit board 4 and has enough space for designing the shape of the flexible circuit board 4, and the area of the lower diaphragm 22 can be properly increased to prevent the upper diaphragm 21 from swinging, thereby improving distortion of the speaker.

Referring to fig. 2-4, in the present embodiment, the flexible circuit board 4 is disposed between the upper diaphragm 21 and the lower diaphragm 22, and the voice coil 23 is powered on through the flexible circuit board 4 instead of a wire, specifically, the flexible circuit board 4 includes a first connecting edge 41 connected to the basin frame 11, a second connecting edge 42 connected to the voice coil 23, and an elastic arm 43 connecting the first connecting edge 41 and the second connecting edge 42.

Referring to fig. 2 to 4, in the present embodiment, the voice coil 23 is in a rectangular ring shape, the frame 11 is in a rectangular ring shape, a long side of the voice coil 23 faces the width direction of the frame 11, and the first diaphragm 211 and the second diaphragm 212 are located at two sides of the long side of the voice coil 23, that is, in the length direction of the frame 11, the first diaphragm and the second diaphragm 212 are located at two sides of the magnetic circuit system 3. Since the long side of the voice coil 23 faces the width direction of the frame 11, more space is reserved on two sides of the long side of the voice coil 23 for placing the first diaphragm 211, the second diaphragm 212 and the elastic arm 43.

Referring to fig. 6, the bobbin 24 in this embodiment includes a first holding portion 241 for receiving and holding the voice coil 23, a first supporting portion 242 for supporting the first diaphragm 211, a second supporting portion 243 for supporting the second diaphragm 212, a first connecting portion 244 for connecting the first supporting portion 242 and the first holding portion 241, and a second connecting portion 245 for connecting the second supporting portion 243 and the first holding portion 241, the first supporting portion 242 and the second supporting portion 243 are connected to two sides of the first holding portion 241, the first connecting edge 41 is clamped and fixed between the frame 11 and the lower diaphragm 22, and the second connecting edge 42 is fixed to the first connecting portion 244 and the second connecting portion 245. Preferably, a plurality of weight increasing blocks 5 are provided on the first connecting part 244 and the second connecting part 245.

Referring to fig. 5, the first support portion 242 of the present embodiment includes a first support bottom wall 2421 and a first annular side wall 2422 extending from the periphery of the first support bottom wall 2421 to be perpendicular to the first support bottom wall 2421, and the first support bottom wall 2421 and the first annular side wall 2422 enclose to form a first avoiding cavity 2423; the second support portion 243 includes a second support bottom wall 2431 and a second annular side wall 2432 extending from the periphery of the second support bottom wall 2431 perpendicularly to the second support bottom wall 2431, and the second support bottom wall 2431 and the second annular side wall 2432 enclose a second escape cavity 2433; preferably, the elastic arm 43 is located in the first escape cavity 2423 and the second escape cavity 2433, and the lower diaphragm 22 is located between the annular side wall and the inner wall of the frame 11, so that the vibration of the lower diaphragm 22 is not interfered by the elastic arm 43. Because the elastic arm 43 is arranged in the first avoidance cavity 2423 and the second avoidance cavity 2433, the elastic arm 43 can be prevented from moving between the inner wall of the basin frame 11 and the framework 24 in the vibration process, and the stability of the acoustic performance of the loudspeaker can be further ensured. In addition, the length of the elastic arm 43 in this embodiment can be properly increased, so that the stress applied during the vibration process is reduced, and the phenomenon of wire breakage caused by the short elastic arm 43 is avoided.

Referring to fig. 2 and 6, in the present embodiment, the first connecting portion 244 has a first mounting groove 2441 for accommodating and limiting the weight 5, the second connecting portion 245 has a second mounting groove 2451 for accommodating and limiting the weight 5, preferably, the first mounting groove 2441 has two, the second mounting groove 2451 has two, the two first mounting grooves 2441 and the two second mounting grooves 2451 are distributed on the framework 24 around the center of mass of the framework 24, and the weight 5 is detachably mounted in the first mounting groove 2441 and the second mounting groove 2451 at four corners of the rectangle formed by the two first mounting grooves 2441 and the two second mounting grooves 2451.

The first holding portion 241, the first connecting portion 244, the second connecting portion 245, the first supporting portion 242 and the second supporting portion 243 in this embodiment are integrally formed. Thereby ensuring the strength of the framework 24 and being not easy to damage during the vibration process.

Referring to fig. 2, the first diaphragm 211 in this embodiment includes a first ring-shaped portion 2111, a first fixing portion 2112 formed by extending from an outer periphery of the first ring-shaped portion 2111, and a first dome portion 2113 formed by extending from an inner periphery of the first ring-shaped portion 2111, where the first dome portion 2113 is connected to the first supporting portion 242, and specifically, the first dome portion is disposed on the first supporting bottom wall 2421, and the size and shape of the first dome portion are similar to those of the first supporting bottom wall 2421, and the first fixing portion 2112 includes a first fixing edge portion 2112a fixed to the housing 1 and a second fixing edge portion 2112b fixed to the magnetic circuit system 3 and respectively connected to two ends of the first fixing edge portion 2112a, so that the first ring-shaped portion 2111 is located between the first annular side wall 2422 and the inner wall of the frame 11; the second diaphragm 212 includes a second collar portion 2121, a second fixing portion 2122 extending from an outer periphery of the second collar portion 2121, and a second dome portion 2123 extending from an inner periphery of the second collar portion 2121, the second dome portion 2123 is connected to the second supporting portion 243, and specifically, the second dome is disposed on the second supporting bottom wall 2431, and the second dome is similar to the second supporting bottom wall 2431 in size and shape, and the second fixing portion 2122 includes a third fixing edge portion 2122a fixed to the housing 1 and fourth fixing edge portions 2122b fixed to the magnetic circuit system 3 and respectively connected to two ends of the third fixing edge portion 2122a, so that the second collar portion 2121 is located between the second annular side wall 2432 and the inner wall of the frame 11.

Referring to fig. 2, the first dome portion 2113 in the present embodiment includes a first supporting inner edge 2113a and a first clamping plate 2113b, specifically, an inner peripheral edge of the first supporting inner edge 2113a is enclosed to form a first cut center hole 2113c, the first clamping plate 2113b abuts against the first supporting inner edge 2113a to cover the first cut center hole 2113c, specifically, the first clamping plate 2113b is disposed on the first supporting bottom wall 2421, and the first supporting inner edge 2113a abuts against an edge of the first clamping plate 2113 b; second dome portion 2123 includes a second support inner edge 2123a and a second splint 2123b, specifically, an inner peripheral edge of second support inner edge 2123a encloses a second cut-out hole 2123c, second splint 2123b abuts on second support inner edge 2123a to cover second cut-out hole 2123c, specifically, second splint 2123b is disposed on second support bottom wall 2431, and second support inner edge 2123a abuts on an edge of second splint 2123 b.

Referring to fig. 2-4, the lower diaphragm 22 in this embodiment includes a third diaphragm 221 and a fourth diaphragm 222, the third diaphragm 221 includes a third folded ring portion 2211 and a third fixing portion 2212 extending from an outer periphery of the third folded ring portion 2211, the fourth diaphragm 222 includes a fourth folded ring portion 2221 and a fourth fixing portion 2222 extending from an outer periphery of the fourth folded ring portion 2221, the third fixing portion 2212 is disposed on the basin frame 11, the fourth fixing portion 2222 is disposed on the basin frame 11, specifically, the third fixing portion 2212 is disposed on the first connecting side 41, the fourth fixing portion 2222 is disposed on the first connecting side 41, further specifically, the first connecting side 41 is bonded to the basin frame 11, the third fixing portion 2212 is bonded to the first connecting side 41, the fourth fixing portion 2222 is bonded to the first connecting side 41, in the Z direction, the third collar portion 2211 is disposed opposite to the first collar portion 2111, and the fourth collar portion 2221 is disposed opposite to the second collar portion 2121. Preferably, the third diaphragm 221 and the fourth diaphragm 222 are disposed on both sides of the long side of the voice coil 23, respectively.

Referring to fig. 2 to 4, in the present embodiment, the third diaphragm 221 further includes a first fixing edge 2213 extending from an inner peripheral edge of the third folding ring portion 2211, the fourth diaphragm 222 further includes a second fixing edge 2223 extending from an inner peripheral edge of the fourth folding ring portion 2221, an end of the first annular sidewall 2422 departing from the first support bottom wall 2421 extends toward the frame 11 to form a first support edge 2424, an end of the second annular sidewall 2432 departing from the second support bottom wall 2431 extends toward the frame 11 to form a second support edge 2434, the first fixing edge 2213 is disposed on the first support edge 2424, and the second fixing edge 2223 is disposed on the second support edge 2434. So that the vibration of the voice coil 23 can be simultaneously transmitted to the first diaphragm 211 and the second diaphragm 212 of the upper diaphragm 21 and the third diaphragm 221 and the fourth diaphragm 222 of the lower diaphragm 22 through the bobbin 24, thereby making the acoustic performance of the speaker better.

Referring to fig. 2 and 7, the magnetic circuit system 3 in this embodiment includes a magnetic yoke 31 fixedly connected to the middle of the bottom cover 12, a main magnetic steel 32 assembled in the center of the magnetic yoke 31, an auxiliary magnetic steel 33 assembled on the magnetic yoke 31 and disposed around the main magnetic steel 32 to form a magnetic gap, a main pole core 34 attached above the main magnetic steel 32, and an auxiliary pole core 35 attached to the auxiliary magnetic steel 33, wherein the voice coil 23 is suspended in the magnetic gap, specifically, the voice coil 23 is sleeved on the main magnetic steel 32, and the side wall of the voice coil 23 is located between the main magnetic steel 32 and the auxiliary magnetic steel 33, the bobbin 24 further includes a second holding portion 246 having a receiving cavity 2461 formed on the first connecting portion 244 and the second connecting portion 245, the auxiliary magnetic steel 33 is received in the receiving cavity 2461, and the voice coil 23 abuts against the second holding portion 246.

Referring to fig. 2 and 6, the number of the secondary magnetic steels 33 in the present embodiment is two, the two secondary magnetic steels 33 are symmetrically disposed about the long side of the main magnetic steel 32, and the two long sides of the voice coil 23 are respectively inserted into the magnetic gaps formed by the two secondary magnetic steels 33 and the main magnetic steel 32.

Referring to fig. 2, 4 and 6, the upper cover 13 in the embodiment is disposed on the frame 11, the upper cover 13 includes a first pressing portion 131 and a second pressing portion 132, the first pressing portion 131 presses against the first diaphragm 211, and the second pressing portion 132 presses against the second diaphragm 212. Specifically, the first fixing side portion 2112a and the third fixing side portion 2122a are fixed to the frame 11, respectively; the second fixing side portion 2112b and the fourth fixing side portion 2122b are respectively interposed and fixed between the upper cover 13 and the magnetic circuit system 3, and more specifically, the second fixing side portion 2112b and the fourth fixing side portion 2122b are respectively interposed and fixed between the upper cover 13 and the sub-pole core 35. Preferably, the frame 11 has a matching portion 111 matching with the upper cover 13, the upper cover 13 is covered on the matching portion 111, and the first fixing portion 2112 and the second fixing portion 2122 have at least a portion located between the matching portion 111 and the upper cover 13, respectively, to further enhance the stability of fixing the first diaphragm 211 and the second diaphragm 212.

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 loudspeaker, characterized by: including the casing that has accommodating space and accept in vibration system in the casing with be used for the drive vibration system's magnetic circuit, vibration system includes the vibrating diaphragm, is used for the drive go up the voice coil loudspeaker voice coil of vibrating diaphragm vibration sound production and be used for transmitting the vibration of voice coil loudspeaker voice coil extremely go up the vibrating diaphragm and be used for fixing the skeleton of voice coil loudspeaker voice coil, it connects to go up the vibrating diaphragm on the skeleton, the speaker still includes a plurality of weight increase pieces, and is a plurality of weight increase piece sets up on the skeleton.

2. The loudspeaker of claim 1, wherein: the upper vibrating diaphragm comprises a first vibrating diaphragm and a second vibrating diaphragm, the first vibrating diaphragm and the second vibrating diaphragm are located on two opposite sides of the magnetic circuit system, the first vibrating diaphragm and the second vibrating diaphragm are fixed between the shell and the magnetic circuit system respectively, the framework comprises a first fixing portion, a first supporting portion, a second supporting portion, a first connecting portion and a second connecting portion, the first fixing portion is used for containing and fixing the voice coil, the first supporting portion is used for supporting the first vibrating diaphragm, the second supporting portion is used for supporting the second vibrating diaphragm, the first connecting portion is used for connecting the first supporting portion with the first fixing portion, the second connecting portion is used for connecting the second supporting portion with the first fixing portion, the first supporting portion and the second supporting portion are connected on two sides of the first fixing portion, and the weighting blocks are arranged on the first connecting portion and the second connecting portion.

3. The loudspeaker of claim 2, wherein: the first supporting part comprises a first supporting bottom wall and a first annular side wall which is formed by extending from the periphery of the first supporting bottom wall to be vertical to the first supporting bottom wall, and the first connecting part is connected with the first annular side wall; the second supporting portion comprises a second supporting bottom wall and a second annular side wall formed by extending from the periphery of the second supporting bottom wall to be perpendicular to the second supporting bottom wall, and the second connecting portion is connected with the second annular side wall.

4. A loudspeaker according to claim 3, wherein: the first diaphragm comprises a first flange part, a first fixing part formed by extending from the outer periphery of the first flange part and a first spherical top part formed by extending from the inner periphery of the first flange part, the first spherical top part is connected to the first supporting part, and the first fixing part comprises a first fixing edge part fixed on the shell and a second fixing edge part fixed on the magnetic circuit system and respectively connected with two ends of the first fixing edge part; the second diaphragm comprises a second flange part, a second fixing part and a second ball top part, the second fixing part is formed by extending the outer periphery of the second flange part, the second ball top part is formed by extending the inner periphery of the second flange part, the second ball top part is connected to the second supporting part, and the second fixing part comprises a third fixing edge part and a fourth fixing edge part, the third fixing edge part is fixed to the shell, the fourth fixing edge part is fixed to the magnetic circuit system, and the fourth fixing edge part is connected with the two ends of the third fixing edge part respectively.

5. The loudspeaker of claim 4, wherein: the vibration system further comprises a lower vibration diaphragm which is opposite to the upper vibration diaphragm and is arranged at intervals, the lower vibration diaphragm comprises a third vibration diaphragm and a fourth vibration diaphragm, the third vibration diaphragm comprises a third folded ring part, a third fixing part formed by extending from the outer periphery of the third folded ring part and a first fixing edge formed by extending from the inner periphery of the third folded ring part, the fourth vibration diaphragm comprises a fourth folded ring part, a fourth fixing part formed by extending from the outer periphery of the fourth folded ring part and a second fixing edge formed by extending from the inner periphery of the fourth folded ring part, the third fixing part is arranged on the shell, the fourth fixing part is arranged on the shell, the first annular side wall deviates from one end of the first support bottom wall and extends to the direction of the inner side wall of the shell to form a first support edge, and the second annular side wall deviates from one end of the second support bottom wall and extends to the direction of the inner side wall of the shell to form a second support edge, the first fixed edge is arranged on the first supporting edge, the second fixed edge is arranged on the second supporting edge, the third folding ring portion is arranged opposite to the first folding ring portion, and the fourth folding ring portion is arranged opposite to the second folding ring portion.

6. The loudspeaker of claim 5, wherein: the loudspeaker further comprises a flexible circuit board which elastically supports the vibration system, the flexible circuit board is clamped between the upper vibrating diaphragm and the lower vibrating diaphragm, and the lower vibrating diaphragm is arranged on the flexible circuit board.

7. A loudspeaker according to any one of claims 2 to 6, wherein: the first fixing portion, the first connecting portion, the second connecting portion, the first supporting portion and the second supporting portion are integrally formed.

8. The loudspeaker of claim 4, wherein: the shell comprises a basin frame, a bottom cover which forms an accommodating space with the basin frame in an assembled mode, and an upper cover, wherein the first fixing edge part and the third fixing edge part are respectively fixed on the basin frame; the second fixed edge and the fourth fixed edge are respectively clamped and fixed between the upper cover and the magnetic circuit system.

9. A loudspeaker according to any one of claims 2 to 6, wherein: the voice coil loudspeaker voice coil is the rectangle cyclic annular, the casing is the rectangle cyclic annular, the long limit orientation of voice coil loudspeaker voice coil the width direction of casing, first vibrating diaphragm with the second vibrating diaphragm is located the both sides on long limit of voice coil loudspeaker voice coil.

10. The loudspeaker of claim 2, wherein: the magnetic circuit system comprises a magnetic yoke fixedly connected to the middle of the shell, main magnetic steel matched with the magnetic yoke at the center, auxiliary magnetic steel matched with the magnetic yoke and arranged around the main magnetic steel to form a magnetic gap, a main pole core attached above the main magnetic steel and an auxiliary pole core attached to the auxiliary magnetic steel, wherein the voice coil is suspended in the magnetic gap, the framework further comprises a second fixing part which is formed on the first connecting part and the second connecting part and provided with a containing cavity, the auxiliary magnetic steel is contained in the containing cavity, and the voice coil abuts against the second fixing part.

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