CN213342569U

CN213342569U - Loudspeaker box and mobile terminal

Info

Publication number: CN213342569U
Application number: CN202022149231.2U
Authority: CN
Inventors: 吴军; 杨虎虎; 任圣
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-06-01
Anticipated expiration: 2030-09-25
Also published as: WO2022061985A1

Abstract

The utility model provides a loudspeaker box and a mobile terminal, wherein the loudspeaker box comprises a shell and a sounding monomer, and the shell is provided with a first sound outlet and a second sound outlet which are positioned at different sides of the loudspeaker box; the sounding monomer comprises a first sounding component used for sounding towards the first sounding hole, a second sounding component used for sounding towards the second sounding hole and a magnetic bowl with a through hole, wherein the magnetic bowl comprises a first surface and a second surface which are oppositely arranged, and the through hole penetrates through the first surface and extends to the second surface; the first sounding assembly comprises a first vibration system and a first magnetic circuit system with a first magnetic gap, the second sounding assembly comprises a second vibration system and a second magnetic circuit system with a second magnetic gap, the first magnetic circuit system is installed on the first surface, the second magnetic circuit system is installed on the second surface, and the first magnetic gap and the second magnetic gap are communicated through a through hole to form a magnetic channel. The utility model provides a speaker box has the function of raising one's voice and earphone function simultaneously.

Description

Loudspeaker box and mobile terminal

[ technical field ] A method for producing a semiconductor device

The utility model relates to an acoustoelectric technology field especially relates to a speaker box and mobile terminal.

[ background of the invention ]

At present, a speaker box for playing sound is widely applied to an intelligent mobile terminal, and for some mobile terminal devices (such as mobile phones), not only the speaker box for playing sound but also a receiver for not playing sound need to be configured, which is not favorable for the development of lightness and thinness of the intelligent mobile terminal.

Therefore, there is a need for a speaker box that integrates loud and non-loud sounds into a single body.

[ Utility model ] content

An object of the utility model is to provide a speaker box to solve current speaker box and only be used for the technical problem of external sound or receiver effect.

The technical scheme that one of the purposes of the utility model provides as follows: a loudspeaker box comprises a shell with an accommodating space and a sounding monomer accommodated in the accommodating space, wherein the shell is provided with a first sound outlet hole and a second sound outlet hole which are positioned on different sides of the loudspeaker box; the sounding monomer comprises a first sounding component used for sounding towards the first sounding hole, a second sounding component used for sounding towards the second sounding hole and a magnetic bowl with a through hole, the magnetic bowl comprises a first surface and a second surface which are oppositely arranged, and the through hole penetrates through the first surface and extends to the second surface; first sound production subassembly includes first vibration system and is used for the drive first vibration system vibration sound production's first magnetic circuit, first magnetic circuit has first magnetic gap, second sound production subassembly includes second vibration system and is used for the drive second vibration system vibration sound production's second magnetic circuit, second magnetic circuit has second magnetic gap, first magnetic circuit install in first surface, second magnetic circuit install in the second surface, first magnetic gap with second magnetic gap passes through the perforation intercommunication forms the magnetic channel.

Further, the casing includes a first end panel, a second end panel disposed opposite to the first end panel at an interval, and a surrounding plate connected between an edge of the first end panel and an edge of the second end panel, one of the first sound outlet and the second sound outlet is disposed on the surrounding plate in a penetrating manner, the other one of the first sound outlet and the second sound outlet is disposed on the first end panel or the second end panel in a penetrating manner, the magnetic bowl is disposed between the first end panel and the second end panel, the first surface faces the first end panel, and the second surface faces the second end panel.

Furthermore, the first sound outlet hole penetrates through the enclosing plate, and the second sound outlet hole penetrates through the second end panel; the first vibration system comprises a first vibrating diaphragm arranged between the first magnetic circuit system and the first end panel and a first voice coil used for driving the first vibrating diaphragm to vibrate and sound, one end of the first voice coil is connected with the first vibrating diaphragm, and the other end of the first voice coil is inserted into the magnetic channel from the first magnetic gap.

Further, the first magnetic circuit system includes a first main magnet, a first auxiliary magnet and a first main pole core, the first main magnet and the first auxiliary magnet are both fixed on the first surface, the first auxiliary magnet is disposed around the periphery of the first main magnet, the first magnetic gap is formed between the first auxiliary magnet and the first main magnet, and the first main pole core is disposed on one side of the first main magnet facing the first diaphragm.

Furthermore, the second vibration system comprises a second diaphragm arranged between the second magnetic circuit and the second sound outlet hole and a second voice coil used for driving the second diaphragm to vibrate and sound, one end of the second voice coil is connected with the second diaphragm, and the other end of the second voice coil is inserted into the magnetic channel from the second magnetic gap.

Furthermore, the first voice coil comprises a first voice coil body with a first hollow inner hole and a plurality of first extension parts arranged at intervals along the circumferential direction, one end of the first voice coil body, which is far away from the first extension parts, is connected with the first diaphragm, the first voice coil body is arranged in the first magnetic gap, and the first extension parts extend into the second magnetic gap; the second voice coil comprises a second voice coil body with a second hollow inner hole and a plurality of second extending parts arranged at intervals along the circumferential direction, one end, far away from the second extending parts, of the second voice coil body is connected with the second vibrating diaphragm, the second voice coil body is arranged in the second magnetic gap, and the second extending parts extend into the first magnetic gap; the first extension portion is located at the periphery of the second extension portion.

Further, the second magnetic circuit system comprises a second main magnet, a second auxiliary magnet, a second main pole core and an auxiliary pole core, wherein the second main magnet and the second auxiliary magnet are fixedly arranged on the second surface, the second auxiliary magnet is arranged around the periphery of the second main magnet, and a second magnetic gap is formed between the second auxiliary magnet and the second main magnet; the second main pole core is arranged on one side, facing the second vibrating diaphragm, of the second main magnet, and the auxiliary pole core is arranged on one side, facing the second vibrating diaphragm, of the second auxiliary magnet.

Furthermore, the first sound-emitting assembly further comprises a first frame, the first frame comprises a first frame body with a third hollow inner hole and a plurality of first support columns extending from the first frame body to the position close to the second sound outlet, the adjacent first support columns are arranged at intervals, and the edge of the first vibrating diaphragm is fixedly arranged at the end part, far away from the first support columns, of the first frame body;

second sound production subassembly still includes the second basin frame, the second basin frame including the second basin frame body that has the fourth cavity hole and certainly second basin frame body is close to a plurality of second support column that first end panel extends, it is adjacent the interval sets up between the second support column, the edge of second vibrating diaphragm set firmly in keeping away from of second basin frame body the tip of second support column, keeping away from of second support column the end connection of second basin frame body keep away from of first support column the tip of first basin frame body.

Further, the casing further comprises an annular support platform extending from the first end panel and convexly arranged in the accommodating space, the second sound outlet hole is arranged opposite to the annular support platform at an interval, the sound generating monomer is arranged between the annular support platform and the second sound outlet hole, the first vibrating diaphragm, the annular support platform and the first end panel are enclosed to form a first front sound cavity, and the annular support platform is provided with an opening for communicating the first front sound cavity with the first sound outlet hole.

Furthermore, a space is formed between the outer side of the annular support platform and the inner side of the enclosing plate, the shell is further provided with a sound guide channel which extends from the part, provided with the opening, of the annular support platform to the part, provided with the first sound outlet, of the enclosing plate, and the sound guide channel is provided with a communication hole which is communicated with the opening and the first sound outlet in a penetrating mode.

Furthermore, the annular support platform comprises an annular support portion protruding from the first end panel and a limiting portion protruding from the annular support portion toward the second end panel, the annular support portion comprises a first inner side facing the first front sound cavity, a first outer side facing the first inner side and a support end face facing the second end panel, the limiting portion comprises a second inner side facing the first front sound cavity and a second outer side facing the second inner side, the first outer side and the second outer side are aligned, the distance between the first inner side and the first outer side is greater than the distance between the second inner side and the second outer side, the support end face and the second inner side enclose a clamping groove, and the opening extends from the first inner side to the first outer side, one end of the first basin frame, which is far away from the second basin frame, is inserted into the clamping groove, and the edge of the first vibrating diaphragm is clamped between the first basin frame and the supporting end face.

A second object of the utility model is to provide a mobile terminal, including equipment body and foretell speaker box, the speaker box install in this is internal to the equipment, the equipment body is including the first sound emitting panel who is equipped with first sound emitting hole, first sound emitting hole with the second sound emitting hole intercommunication.

Further, the mobile terminal further comprises an annular sealing element, and the annular sealing element is arranged between the second end panel and the first sound emitting panel and surrounds the periphery of the second sound emitting hole.

The beneficial effects of the utility model reside in that: (1) the utility model provides a speaker box and mobile terminal is equipped with two sound outlet holes in the different sides of speaker box, is equipped with two sound production subassemblies in the speaker box, and first sound production subassembly is towards the sound production of first sound outlet hole, and the sound production of second sound production subassembly towards second sound outlet hole, and one of them sound production subassembly is used for mobile terminal's external sound to realize the function of raising one's voice, and another sound production subassembly is used for mobile terminal's non-external sound to realize the earphone function, has realized that a speaker box can not only play sound, can not just can transmit the function of sound with external sound; (2) the magnetic circuit system of one sound production assembly is arranged on the first surface of the magnetic bowl, the magnetic circuit system of the other sound production assembly is arranged on the second surface of the magnetic bowl, and the first surface and the second surface are arranged oppositely, so that the two sound production assemblies are assembled compactly, and the miniaturization design of the loudspeaker box is facilitated; moreover, the magnetic bowl separates the two magnetic circuit systems, which is beneficial to reducing the interference between the two magnetic circuit systems and is beneficial to improving the performance of the loudspeaker box; (3) with first magnetic gap and second magnetic gap through wearing to locate the perforation intercommunication formation magnetic tunnel of magnetism bowl, first voice coil loudspeaker voice coil and second voice coil loudspeaker voice coil all can receive the effect of first magnetic circuit's magnet and second magnetic circuit's magnet, have increased the BL parameter, and it is more that the line motion is felt to cutting magnetism between voice coil loudspeaker voice coil and magnet, drive power variation, further improves the low frequency performance of speaker box.

[ description of the drawings ]

Fig. 1 is an assembly view of a speaker box and a second sound emitting panel according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;

fig. 3 is an assembly view of a speaker box and a ring seal according to an embodiment of the present invention;

fig. 4 is an exploded view of a speaker box according to an embodiment of the present invention;

fig. 5 is an exploded view of a sounding unit provided in an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a magnetic bowl according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a first voice coil according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a second voice coil according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a first basin frame according to an embodiment of the present invention;

fig. 10 is an assembly view of a second frame and a secondary pole core according to an embodiment of the present invention;

fig. 11 is a schematic structural view of an angle of the lower shell according to the embodiment of the present invention;

fig. 12 is a schematic structural view of another angle of the lower shell according to the embodiment of the present invention.

In the figure: 100. a speaker box; 1. a housing; 101. an upper cover; 102. a lower case; 11. an accommodating space; 111. a first front acoustic chamber; 12. a first end panel; 13. a second end panel; 131. a second sound outlet; 14. enclosing plates; 141. a first sound outlet; 15. an annular support table; 151. an annular support portion; 1511. an opening; 1512. a first inner side; 1513. a first outer side; 1514. a support end face; 152. a limiting part; 1521. a second inner side; 1522. a second outer side; 153. a card slot; 16. a sound guide channel; 161. a communicating hole; 2. a sounding monomer; 3. a first sound emitting assembly; 31. a first vibration system; 311. a first diaphragm; 312. a first voice coil; 3121. a first voice coil body; 3122. a first extension portion; 3123. a first hollow inner bore; 32. a first magnetic circuit system; 321. a first main magnet; 322. a first sub-magnet; 323. a first main pole core; 33. a first frame; 331. a first frame body; 332. a first support column; 333. a third hollow inner bore; 4. a second sound emitting assembly; 41. a second vibration system; 411. a second diaphragm; 412. a second voice coil; 4121. a second voice coil body; 4122. a second extension portion; 4123. a second hollow inner bore; 42. a second magnetic circuit system; 421. a second main magnet; 422. a second secondary magnet; 423. a second main pole core; 424. a secondary pole core; 43. a second frame; 431. a second frame body; 432. a second support column; 433. a fourth hollow inner bore; 434. an air vent; 5. a magnetic bowl; 51. a first surface; 52. a second surface; 53. perforating; 6. a magnetic tunnel; 61. a first magnetic gap; 62. a second magnetic gap; 200. a first sound emitting panel; 210. a first sound outlet; 300. an annular seal.

[ detailed description ] embodiments

The present invention will be described in detail with reference to fig. 1 to 12.

Referring to fig. 1-5, an embodiment of the present invention provides a speaker box 100, including a housing 1 having an accommodating space 11 and a sound generating unit 2 accommodated in the accommodating space 11, wherein the housing 1 has a first sound outlet 141 and a second sound outlet 131, and the first sound outlet 141 and the second sound outlet 131 are located at different sides of the speaker box 100; the sound emission unit 2 includes a first sound emission member 3 for emitting sound toward the first sound emission hole 141, a second sound emission member 4 for emitting sound toward the second sound emission hole 131, and a magnetic bowl 5 having a through hole 53.

Through setting up first sound hole 141 and second sound hole 131 in the different sides of speaker box 100, set up in speaker box 100 towards the first sound subassembly 3 of first sound hole 141 sound production and towards the second sound subassembly 4 of second sound hole 131 sound production, a sound subassembly is used for mobile terminal's the sound of playing outward in order to realize the speaker function, another sound subassembly is used for mobile terminal's the sound of not playing outward in order to realize the earphone function, realized that a speaker box possesses the function of sound of playing outward and sound transmission sound outside not simultaneously.

Referring to fig. 2 and fig. 5-6, the magnetic bowl 5 includes a first surface 51 and a second surface 52 opposite to each other, and a through hole 53 extends from the first surface 51 to the second surface 52; the first sound generating assembly 3 comprises a first vibration system 31 and a first magnetic circuit system 32 for driving the first vibration system 31 to vibrate and generate sound, the first magnetic circuit system 32 is provided with a first magnetic gap 61, the second sound generating assembly 4 comprises a second vibration system 41 and a second magnetic circuit system 42 for driving the second vibration system 41 to vibrate and generate sound, the second magnetic circuit system 42 is provided with a second magnetic gap 62, the first magnetic circuit system 32 is mounted on the first surface 51, the second magnetic circuit system 42 is mounted on the second surface 52, and the first magnetic gap 61 and the second magnetic gap 62 are communicated through a through hole 53 to form a magnetic channel 6.

By providing the magnetic bowl 5 including the first surface 51 and the second surface 52, the first surface 51 and the second surface 52 are oppositely arranged, the first magnetic circuit system 32 of the first sound generating assembly 3 is mounted on the first surface 51, the second magnetic circuit system 42 of the second sound generating assembly 4 is mounted on the second surface 52, the first sound generating assembly 3 and the second sound generating assembly 4 are assembled compactly, and the miniaturization design of the loudspeaker box 100 is facilitated. In addition, the magnetic circuit systems of the first sounding component 3 and the second sounding component 4 are separated by the magnetic bowl 5, so that the interference between the two is reduced, and the performance of the loudspeaker box 100 is improved.

In this embodiment, the first diaphragm 311 and the second diaphragm 411 have the same vibration direction, which is beneficial to increase the vibration amount of air and improve the performance of the speaker box 100.

Referring to fig. 2-5, the housing 1 includes an upper cover 101 and a lower shell 102, and the upper cover 101 covers the lower shell 102. The upper cover 101 includes a second end panel 13, and the lower cover 102 includes a first end panel 12 disposed opposite to the second end panel 13 at a distance and a surrounding plate 14 connected between an edge of the first end panel 12 and an edge of the second end panel 13, one of the first sound outlet and the second sound outlet is disposed through the surrounding plate 14, and the other one is disposed through the first end panel 12 or the second end panel 13. In the present embodiment, the first sound outlet hole 141 is formed through the enclosure 14, the second sound outlet hole 131 is formed through the second end panel 13, the magnetic bowl 5 is formed between the first end panel 12 and the second sound outlet hole 131, the first surface 51 faces the first end panel 12, and the second surface 52 faces the second sound outlet hole 131. The first sound emitting hole 141 is provided through the enclosure 14, and the first sound emitting element 3 emits sound toward the first sound emitting hole 141 to transmit externally emitted sound; the second sound emitting hole 131 is provided through the second end panel 13, and the second sound emitting unit 4 emits sound toward the second sound emitting hole 131 for transmitting non-external sound. Wherein the first end panel 12 and the enclosure 14 are integrally formed, improving the stability of the loudspeaker enclosure 100 and reducing the number of assembly steps. Of course, the first end panel 12 and the shroud 14 may also be manufactured separately and then assembled together.

Referring to fig. 2 and fig. 5-6, the first vibration system 31 includes a first diaphragm 311 disposed between the first magnetic circuit system 32 and the first end panel 12, and a first voice coil 312 for driving the first diaphragm 311 to vibrate and generate sound, one end of the first voice coil 312 is connected to the first diaphragm 311, and the other end is inserted into the magnetic channel 6 from the first magnetic gap 61. The first magnetic circuit system 32 includes a first main magnet 321, a first sub-magnet 322, and a first main pole core 323, wherein the first main magnet 321 and the first sub-magnet 322 are both fixed on the first surface 51, the first sub-magnet 322 is disposed around the first main magnet 321, a first magnetic gap 61 is formed between the first sub-magnet 322 and the first main magnet 321, and the first main pole core 323 is disposed on a side of the first main magnet 321 facing the first diaphragm 311. In this embodiment, the magnetic conduction function of the first main pole core 323 can effectively increase the magnetic flux of the magnetic channel 6, thereby improving the acoustic performance of the sound generating unit 2. Additionally, the embodiment of the utility model provides a speaker box forms the magnetic channel with first magnetic gap and second magnetic gap through the perforation intercommunication of wearing to locate the magnetism bowl, and first voice coil loudspeaker voice coil and second voice coil loudspeaker voice coil all can receive the effect of first magnetic circuit's magnet and second magnetic circuit's magnet, have increased the BL parameter, and it is more that the linear motion is felt to cutting magnetism between voice coil loudspeaker voice coil and magnet, and drive power becomes strong, has further improved speaker box's low frequency performance.

Referring to fig. 2 and fig. 5-6 again, the second vibration system 41 includes a second diaphragm 411 disposed between the second magnetic circuit 42 and the second sound outlet 131, and a second voice coil 412 for driving the second diaphragm 411 to vibrate and generate sound, one end of the second voice coil 412 is connected to the second diaphragm 411, and the other end is inserted into the magnetic channel 6 from the second magnetic gap 62. The second magnetic circuit system 42 includes a second main magnet 421, a second auxiliary magnet 422, a second main pole 423, and an auxiliary pole 424, the second main magnet 421 and the second auxiliary magnet 422 are both fixed on the second surface 52, the second auxiliary magnet 422 is disposed around the periphery of the second main magnet 421, and a second magnetic gap 62 is formed between the second auxiliary magnet 422 and the second main magnet 421; the second main pole piece 423 is disposed on a side of the second main magnet 421 facing the second diaphragm 411, and the auxiliary pole piece 424 is disposed on a side of the second auxiliary magnet 422 facing the second diaphragm 411. In this embodiment, the magnetic conduction effect of the second main pole piece 423 and the auxiliary pole piece 424 can effectively increase the magnetic flux of the magnetic channel 6, thereby improving the acoustic performance of the sound generating unit 2.

Preferably, the first main magnet 321, the second main magnet 421, the first sub-magnet 322 and the second sub-magnet 422 are made of magnetic steel. It is understood that the first main magnet 321, the second main magnet 421, the first sub-magnet 322 and the second sub-magnet 422 may be natural magnets.

In this embodiment, the first main magnet 321 and the second main magnet 421 are both rectangular, four first sub-magnets 322, four second sub-magnets 422 and four sub-pole cores 424 are provided, one first sub-magnet 322 corresponds to one side of the first main magnet 321, one second sub-magnet 422 corresponds to one side of the second main magnet 421, and one sub-pole core 424 corresponds to one second sub-magnet 422.

Referring to fig. 2 and fig. 6 to 8, the first voice coil 312 includes a first voice coil body 3121 having a first hollow inner hole 3123 and a plurality of first extending portions 3122 disposed at intervals along a circumferential direction, an end of the first voice coil body 3121 away from the first extending portions 3122 is connected to the first diaphragm 311, the first voice coil body 3121 is disposed in the first magnetic gap 61, and the first extending portions 3122 extend into the second magnetic gap 62. The second voice coil 412 comprises a second voice coil body 4121 with a second hollow inner hole 4123 and a plurality of second extending portions 4122 arranged at intervals along the circumferential direction, one end of the second voice coil body 4121 far away from the second extending portions 4122 is connected with the second diaphragm 411, the second voice coil body 4121 is arranged in the second magnetic gap 62, and the second extending portions 4122 extend into the first magnetic gap 61; the first extension portion 3122 is located at the outer circumference of the second extension portion 4122. In the present embodiment, there are four first extension portions 3122 and four second extension portions 4122, one first extension portion 3122 corresponds to one second extension portion 4122, correspondingly, the magnetic bowl 5 is provided with four through holes 53, and one first extension portion 3122 and one second extension portion 4122 are inserted into one through hole 53. In other embodiments, the number of the first extension 3122 and the second extension 4122 may be one, two, three, or the like, or it is possible to provide no first extension 3122 and no second extension 4122.

Referring to fig. 2, 5 and 9-10, the first sound-generating assembly 3 further includes a first frame 33, the first frame 33 includes a first frame body 331 having a third hollow inner hole 333, and a plurality of first supporting pillars 332 extending from the first frame body 331 toward the second sound outlet 131, the adjacent first supporting pillars 332 are spaced apart from each other, an edge of the first diaphragm 311 is fixed to an end portion of the first frame body 331 away from the first supporting pillars 332, and the first diaphragm 311 covers the third hollow inner hole 333. The second sounding component 4 further includes a second frame 43, the second frame 43 includes a second frame body 431 having a fourth hollow inner hole 433, and a plurality of second supporting pillars 432 extending from the second frame body 431 toward the first end panel 12, the adjacent second supporting pillars 432 are spaced apart from each other, an edge of the second vibrating diaphragm 411 is fixedly disposed at an end portion of the second frame body 431 far away from the second supporting pillars 432, and the second vibrating diaphragm 411 covers the fourth hollow inner hole 433. The end of the second support column 432 away from the second frame body 431 is connected to the end of the first support column 332 away from the first frame body 331. In the present embodiment, the side of the auxiliary pole core 424 away from the second magnetic gap 62 is connected to the second frame 43 and is integrally formed with the second frame 43. Specifically, one side of the auxiliary pole core 424, which is far away from the second magnetic gap 62, is connected with the second frame body 431, the four auxiliary pole cores 424 are located in the fourth hollow inner hole 433, the two adjacent auxiliary pole cores 424 and the second frame body 431 form an air guide hole 434, and the air guide hole 434 is communicated with the fourth hollow inner hole 433 and the accommodating space 11, so that the air circulation between the second diaphragm 411 and the second main pole core 423 and the auxiliary pole core 424 is enhanced, the air pressure between the second diaphragm 411 and the second main pole core 423 and the auxiliary pole core 424 is reduced, the heat dissipation speed between the second diaphragm 411 and the second main pole core 423 and the auxiliary pole core 424 is increased, and further the acoustic performance of the loudspeaker box 100 is improved.

Referring to fig. 2-3 and fig. 11-12, the casing 1 further includes an annular support platform 15 extending from the first end panel 12 and protruding into the accommodating space 11, the second sound emitting hole 131 is spaced from the annular support platform 15, the sound generating unit 2 is disposed between the annular support platform 15 and the second sound emitting hole 131, the first diaphragm 311, the annular support platform 15 and the first end panel 12 enclose to form a first front sound cavity 111, and the annular support platform 15 is provided with an opening 1511 for communicating the first front sound cavity 111 with the first sound emitting hole 141.

Preferably, the annular support platform 15 includes an annular support portion 151 protruding from the first end panel 12 and a protruding limiting portion 152 extending from the annular support portion 151 toward the second end panel 13, the annular support portion 151 includes a first inner side surface 1512 facing the first front acoustic cavity 111, a first outer side surface 1513 disposed opposite to the first inner side surface 1512 and a support end surface 1514 disposed toward the second end panel 13, the limiting portion 152 includes a second inner side surface 1521 facing the first front acoustic cavity 111 and a second outer side surface 1522 disposed opposite to the second inner side surface 1521, the first outer side surface 1513 is aligned with the second outer side surface 1522, and a distance L between the first inner side surface 1512 and the first outer side surface 1513₁Is greater than the distance L between the second inner side surface 1521 and the second outer side surface 1522₂The supporting end surface 1514 and the second inner side surface 1521 enclose to form a clamping groove 153, the opening 1511 extends from the first inner side surface 1512 to the first outer side surface 1513, one end of the first frame 33, which is far away from the second frame 43, is inserted into the clamping groove 153, and the edge of the first diaphragm 311 is clamped between the first frame 33 and the supporting end surface 1514.

Referring to fig. 2-3 and fig. 11-12 again, the outer side of the ring support 15 is spaced from the inner side of the enclosure 14, the housing 1 is provided with a sound guide channel 16 extending from the portion of the ring support 15 provided with the opening 1511 to the portion of the enclosure 14 provided with the first sound outlet hole 141, and the sound guide channel 16 penetrates through the communication hole 161 provided with the communication opening 1511 and the first sound outlet hole 141. The sound emitted by the vibration of the first diaphragm 311 is transmitted to the outside of the speaker box 100 through the first front sound chamber 111, the opening 1511, the communication hole 161, and the first sound outlet hole 141 in this order.

The embodiment of the utility model provides a mobile terminal (not shown in the figure) is still provided, including equipment body (not shown in the figure) and foretell speaker box 100, speaker box 100 installs in equipment body, and the equipment body is including the first acoustic panel 200 that is equipped with first phonate hole 210, and first phonate hole 210 and second phonate hole 131 communicate. Of course, the device body is further provided with a second sound outlet communicated with the first sound outlet 141.

Preferably, the mobile terminal further includes an annular sealing member 300, and the annular sealing member 300 is disposed between the second end panel 13 and the first sound emitting panel 200 and surrounds the outer circumference of the second sound emitting hole 131.

The sound generated by the vibration of the first sound generating assembly 3 sequentially passes through the first sound outlet 141 and the second sound outlet and is emitted outwards, so that the speaker function is realized, and the sound generated by the vibration of the second sound generating assembly 4 sequentially passes through the second sound outlet 131 and the first sound outlet 210 and is emitted outwards, so that the receiver function (receiver function) is realized. This embodiment realizes receiving function and speaker function simultaneously through a speaker case, does benefit to mobile terminal's miniaturized design.

The above description is only an embodiment 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. The loudspeaker box is characterized by comprising a shell with an accommodating space and a sounding monomer accommodated in the accommodating space, wherein the shell is provided with a first sound outlet hole and a second sound outlet hole which are positioned on different sides of the loudspeaker box;

the sounding monomer comprises a first sounding component used for sounding towards the first sounding hole, a second sounding component used for sounding towards the second sounding hole and a magnetic bowl with a through hole, the magnetic bowl comprises a first surface and a second surface which are oppositely arranged, and the through hole penetrates through the first surface and extends to the second surface;

first sound production subassembly includes first vibration system and is used for the drive first vibration system vibration sound production's first magnetic circuit, first magnetic circuit has first magnetic gap, second sound production subassembly includes second vibration system and is used for the drive second vibration system vibration sound production's second magnetic circuit, second magnetic circuit has second magnetic gap, first magnetic circuit install in first surface, second magnetic circuit install in the second surface, first magnetic gap with second magnetic gap passes through the perforation intercommunication forms the magnetic channel.

2. The speaker cabinet as claimed in claim 1, wherein the housing includes a first end panel, a second end panel disposed opposite to the first end panel with a gap therebetween, and a baffle plate connected between an edge of the first end panel and an edge of the second end panel, one of the first sound outlet and the second sound outlet is disposed through the baffle plate, the other one of the first sound outlet and the second sound outlet is disposed through the first end panel or the second end panel, the magnetic bowl is disposed between the first end panel and the second end panel, the first surface faces the first end panel, and the second surface faces the second end panel.

3. The speaker cabinet as claimed in claim 2, wherein the first sound outlet hole is formed through the enclosure, and the second sound outlet hole is formed through the second end panel; the first vibration system comprises a first vibrating diaphragm arranged between the first magnetic circuit system and the first end panel and a first voice coil used for driving the first vibrating diaphragm to vibrate and sound, one end of the first voice coil is connected with the first vibrating diaphragm, and the other end of the first voice coil is inserted into the magnetic channel from the first magnetic gap.

4. The speaker box of claim 3, wherein the first magnetic circuit system comprises a first main magnet, a first auxiliary magnet, and a first main pole core, the first main magnet and the first auxiliary magnet are fixed on the first surface, the first auxiliary magnet is disposed around the periphery of the first main magnet, the first auxiliary magnet and the first main magnet form the first magnetic gap therebetween, and the first main pole core is disposed on a side of the first main magnet facing the first diaphragm.

5. The loudspeaker box according to claim 3 or 4, wherein the second vibration system comprises a second diaphragm disposed between the second magnetic circuit and the second sound outlet, and a second voice coil for driving the second diaphragm to vibrate and generate sound, one end of the second voice coil is connected to the second diaphragm, and the other end of the second voice coil is inserted into the magnetic channel from the second magnetic gap.

6. The speaker box of claim 5, wherein the first voice coil includes a first voice coil body having a first hollow inner hole and a plurality of first extension portions spaced apart from each other along a circumferential direction, an end of the first voice coil body away from the first extension portions is connected to the first diaphragm, the first voice coil body is disposed in the first magnetic gap, and the first extension portions extend into the second magnetic gap; the second voice coil comprises a second voice coil body with a second hollow inner hole and a plurality of second extending parts arranged at intervals along the circumferential direction, one end, far away from the second extending parts, of the second voice coil body is connected with the second vibrating diaphragm, the second voice coil body is arranged in the second magnetic gap, and the second extending parts extend into the first magnetic gap; the first extension portion is located at the periphery of the second extension portion.

7. The loudspeaker enclosure of claim 5, wherein the second magnetic circuit system comprises a second main magnet, a second secondary magnet, a second main pole core, and a secondary pole core, wherein the second main magnet and the second secondary magnet are fixed to the second surface, and the second secondary magnet is disposed around a periphery of the second main magnet, the second secondary magnet and the second main magnet forming the second magnetic gap therebetween; the second main pole core is arranged on one side, facing the second vibrating diaphragm, of the second main magnet, and the auxiliary pole core is arranged on one side, facing the second vibrating diaphragm, of the second auxiliary magnet.

8. The loudspeaker box of claim 5, wherein the first sound-generating assembly further comprises a first frame, the first frame comprises a first frame body with a third hollow inner hole and a plurality of first supporting columns extending from the first frame body towards the position close to the second sound outlet, the adjacent first supporting columns are arranged at intervals, and the edge of the first vibrating diaphragm is fixedly arranged at the end part of the first frame body far away from the first supporting columns;

9. The speaker box as claimed in claim 8, wherein the housing further includes a ring support extending from the first end panel and protruding from the receiving space, the second sound outlet is spaced from the ring support, the sound generating unit is disposed between the ring support and the second sound outlet, the first diaphragm, the ring support and the first end panel enclose a first front sound cavity, and the ring support is provided with an opening for communicating the first front sound cavity with the first sound outlet.

10. A loudspeaker enclosure according to claim 9, wherein the annular support platform is spaced apart from the inner side of the enclosure, and the housing further comprises a sound guide channel extending from the portion of the annular support platform where the opening is provided to the portion of the enclosure where the first sound outlet is provided, the sound guide channel having a communication hole therethrough for communicating the opening with the first sound outlet.

11. The speaker box according to claim 9, wherein the annular support platform includes an annular support portion protruding from the first end panel and a limit portion protruding from the annular support portion toward the second end panel, the annular support portion includes a first inner side surface facing the first front acoustic cavity, a first outer side surface opposite to the first inner side surface, and a support end surface facing the second end panel, the limit portion includes a second inner side surface facing the first front acoustic cavity and a second outer side surface opposite to the second inner side surface, the first outer side surface and the second outer side surface are aligned, a distance between the first inner side surface and the first outer side surface is greater than a distance between the second inner side surface and the second outer side surface, and the support end surface and the second inner side surface enclose to form a slot, the opening penetrates from the first inner side surface and extends to the first outer side surface, one end, far away from the second basin frame, of the first basin frame is inserted into the clamping groove, and the edge of the first vibrating diaphragm is clamped between the first basin frame and the supporting end surface.

12. Mobile terminal, characterized in that it comprises a device body and a loudspeaker enclosure according to any of claims 1 to 11, said loudspeaker enclosure being mounted in said device body, said device body comprising a first sound outlet panel provided with a first sound outlet aperture, said first sound outlet aperture being in communication with said second sound outlet aperture.

13. The mobile terminal of claim 12, further comprising a ring seal disposed between the second end panel and the first sound emitting panel and surrounding an outer periphery of the second sound emitting hole.