WO2022061982A1

WO2022061982A1 - Speaker box and mobile terminal

Info

Publication number: WO2022061982A1
Application number: PCT/CN2020/120986
Authority: WO
Inventors: 吴军; 杨虎虎; 任圣
Original assignee: 瑞声声学科技(深圳)有限公司; 瑞声科技(新加坡)有限公司
Priority date: 2020-09-25
Filing date: 2020-10-14
Publication date: 2022-03-31
Also published as: CN213342567U

Abstract

The present application provides a speaker box and a mobile terminal. The speaker box comprises a housing and a sound production unit. The housing is provided with a first sound outlet hole and a second sound outlet hole located in different sides of the speaker box. The sound production unit comprises a first sound production assembly, a second sound production assembly, a basket having a first hollow inner hole, and a magnetic bowl having a second hollow inner hole. The magnetic bowl comprises a vertical cylinder body and a transverse ring body, the transverse ring body is fixedly disposed on the basket, and the vertical cylinder body penetrates the first hollow inner hole. The first sound production assembly comprises a first magnetic circuit system and a first vibration system having a first diaphragm, the first diaphragm is fixedly disposed on the basket, and the first magnetic circuit system is disposed in the first hollow inner hole and located outside the second hollow inner hole. The second sound production assembly comprises a second magnetic circuit system and a second vibration system having a second diaphragm, the second diaphragm is fixedly disposed on the transverse ring body, and the second magnetic circuit system is disposed in the second hollow inner hole. The speaker box provided by the present application has both a speaker function and a receiver function.

Description

Speaker box and mobile terminal

technical field

The present application relates to the technical field of acoustics and electricity, and in particular, to a speaker box and a mobile terminal.

Background technique

At present, speaker boxes for playing sound are widely used in smart mobile terminals. For some mobile terminal devices (such as mobile phones), it is necessary to configure both a speaker box for external sound and a receiver for non-external sound. It is beneficial to the development of thin and light intelligent mobile terminals.

Therefore, it is necessary to provide a speaker box that integrates external sound and non-external sound.

technical problem

One of the objectives of the present application is to provide a speaker box to solve the technical problem that the existing speaker box is only used for external sound or the function of a receiver.

technical solutions

One of the technical solutions provided by the purpose of this application is as follows: a speaker box, comprising a housing provided with a accommodating space and a sound-emitting unit accommodated in the accommodating space, the housing is provided with a first sound output A hole and a second sound hole, the first sound hole and the second sound hole are located on different sides of the speaker box; a first sound-generating component, a second sound-generating component for sounding toward the second sound-emitting hole, a basin frame with a first hollow inner hole, and a magnetic bowl with a second hollow inner hole, the magnetic bowl includes a second sound-emitting component with a second The vertical cylinder body of the hollow inner hole and the transverse ring body surrounding the outer circumference of one end of the vertical cylinder body, and the end of the transverse ring body away from the second hollow inner hole is fixed at one end of the basin frame , the vertical cylinder extends through the first hollow inner hole; the first sound-generating component includes a first vibration system with a first diaphragm and a first voice coil and a first vibration system for driving the first The first magnetic circuit system for vibrating and sounding by the vibration system, the first magnetic circuit system has a first magnetic gap, and the edge of the first diaphragm is fixed at the end of the basin frame away from the transverse ring body, so One end of the first voice coil is inserted into the first magnetic gap, the other end is connected to the first diaphragm, and the first magnetic circuit system is arranged in the first hollow inner hole and located in the Outside the second hollow inner hole; the second sound-generating component includes a second vibration system with a second diaphragm and a second voice coil and a second magnetic circuit system for driving the second vibration system to vibrate and sound, the The second magnetic circuit system has a second magnetic gap, the second diaphragm is fixed on the transverse ring body, one end of the second voice coil is inserted in the second magnetic gap, and the other end is connected to the The second diaphragm is connected, and the second magnetic circuit system is arranged in the second hollow inner hole.

Further, the housing includes a first end panel, a second end panel disposed opposite to the first end panel, and an edge connected to the first end panel and the second end panel The enclosure between the edges of the panels, one of the first sound hole and the second sound hole is arranged on the first end panel or on the second end panel, and the other One is provided through the enclosure.

Further, the first sound outlet hole is arranged through the enclosure plate, and the second sound outlet hole is arranged through the second end panel; The upper panel extends and protrudes from the annular support platform in the accommodating space, the second sound outlet and the annular support platform are arranged opposite to each other at intervals, and the basin is erected between the second sound outlet and the annular support platform. between the supporting platforms, the first diaphragm is sandwiched between the basin frame and the annular supporting platform, and the first diaphragm is enclosed by the annular supporting platform and the first end panel. a first front sound cavity; the annular support platform is provided with an opening for connecting the first front sound cavity and the first sound outlet hole.

Further, there is a distance between the outer side of the annular support platform and the inner side of the enclosure plate, and the housing further includes a sound guide channel, and the sound guide channel extends from the annular support platform where the opening is provided. The part extends to the part of the enclosure plate where the first sound outlet hole is arranged, and the sound guide channel is provided with a communication hole connecting the opening and the first sound outlet hole through.

Further, the basin frame includes an annular basin frame body forming the first hollow inner hole and a plurality of first connecting plates spaced apart along the circumferential direction, and the first connecting plates are connected from the annular basin frame body. The end away from the annular support platform extends toward the transverse annular body, and any two of the first connecting plates are enclosed to form a first connecting plate for connecting the first hollow inner hole and the accommodating space. an air guide groove, the end of the first connecting plate away from the annular basin frame body is connected to the transverse ring body, and the first diaphragm is sandwiched between the annular basin frame body and the annular basin frame body between the supports.

Further, the vertical cylinder includes a main cylinder and a plurality of second connecting plates spaced along the circumferential direction, the second connecting plates are from the end of the main cylinder facing the first end panel A second air guide groove for connecting the second hollow inner hole and the first hollow inner hole is formed between any two of the second connecting plates.

Further, the first magnetic circuit system includes a first main magnet, a first auxiliary magnet, a first main pole core and a first auxiliary pole core, and the first auxiliary magnet is arranged around the outer circumference of the first main magnet , the first magnetic gap is formed between the first auxiliary magnet and the first main magnet; the first main magnet is fixed on the end of the second connecting plate facing the first end panel part, the first auxiliary magnet is fixed on the side of the transverse ring body facing the first end panel; the first main pole core is arranged on the first main magnet facing the first On one side of the diaphragm, the first secondary pole core is disposed on the side of the first secondary magnet facing the first diaphragm.

Further, the second magnetic circuit system includes a second main magnet, a second auxiliary magnet, a second main pole core and a second auxiliary pole core, and both the second main magnet and the second auxiliary magnet are fixed on the The first main magnet is integrally formed with the first main magnet, and the second auxiliary magnet is arranged around the outer circumference of the second main magnet and forms the second magnet with the second main magnet Gap; the second main pole core is arranged on the side of the second main magnet facing the second diaphragm, and the second secondary pole core is arranged on the second auxiliary magnet facing the second side of the diaphragm.

Further, the annular support table includes an annular support portion protruding from the first end panel and a protruding limiting portion extending from the annular support portion away from the first end panel, the The annular support part includes a first inner side facing the first front acoustic cavity, a first outer side opposite to the first inner side, and a support end face away from the first end panel. The limiting portion It includes a second inner side facing the first front acoustic cavity and a second outer side opposite to the second inner side, the first outer side and the second outer side are aligned, and the first outer side is aligned with the second outer side. The distance between the inner side surface and the first outer side surface is greater than the distance between the second inner side surface and the second outer side surface, the support end surface and the second inner side surface are enclosed to form a slot, and the opening It extends from the first inner side to the first outer side, the end of the basin frame away from the transverse ring body is inserted into the slot, and the edge of the first diaphragm is sandwiched between between the basin frame and the support end surface.

The second purpose of this application is to provide a mobile terminal, including a device body and the above-mentioned speaker box, wherein the speaker box is installed in the device body, and the device body includes a first outlet provided with a first sound outlet. In the sound panel, the first sound outlet is communicated with the second sound outlet.

Further, the mobile terminal further includes an annular sealing member, the annular sealing member is disposed between the second end panel and the first sound outlet panel and surrounds the outer circumference of the second sound outlet hole.

beneficial effect

The beneficial effects of the present application are: (1) The speaker box and the mobile terminal provided by the present application are provided with two sound outlet holes on different sides of the speaker box, and two sound-generating components are arranged in the speaker box, and the first sound-generating component faces toward The first sound-emitting hole emits sound, and the second sound-emitting component emits sound toward the second sound-emitting hole. One sound-emitting component is used for the external sound of the mobile terminal to realize the speaker function, and the other sound-emitting component is used for the non-external sound of the mobile terminal. In order to realize the function of the earpiece, the function of a speaker box that can not only emit sound, but also transmit sound without releasing sound is realized; (2) The magnetic circuit system of a sound-emitting component is set in the first hollow inner hole and is located in the first hollow inner hole. Outside the two hollow inner holes, the magnetic circuit system of the other sounding component is arranged in the second hollow inner hole, and the two sounding components are assembled compactly, which is beneficial to the miniaturized design of the speaker box.

Description of drawings

1 is an assembly diagram of a speaker box and a second sound-emitting panel provided by an embodiment of the application;

Fig. 2 is a sectional view along A-A in Fig. 1;

3 is an assembly diagram of a speaker box and an annular seal provided by an embodiment of the application;

4 is an exploded view of a speaker box provided by an embodiment of the present application;

FIG. 5 is an exploded view of a sounding monomer provided by an embodiment of the present application;

6 is a schematic structural diagram of a basin frame provided by an embodiment of the present application;

7 is a schematic structural diagram of a magnetic bowl provided by an embodiment of the present application;

8 is an assembly diagram of a basin frame and a magnetic bowl provided by an embodiment of the present application;

FIG. 9 is a schematic structural diagram of an angle of a lower case provided in an embodiment of the present application;

10 is a schematic structural diagram of another angle of the lower case provided by the embodiment of the application;

FIG. 11 is an assembly diagram of the first main magnet, the second main magnet, and the second sub-magnet provided by the embodiment of the present application.

In the figure: 100, speaker box; 1, shell; 101, upper cover; 102, lower shell; 11, accommodating space; 111, first front acoustic cavity; 12, first end panel; 13, second end Panel; 131, second sound hole; 14, enclosure plate; 141, first sound hole; 15, annular support table; 151, annular support part; 1511, opening; 1512, first inner side; 1513, first Outer side; 1514, supporting end surface; 152, limiter; 1521, second inner side; 1522, second outer side; 153, card slot; 16, sound guiding channel; 161, communicating hole; 2, sounding unit; 3. The first sound-generating component; 31, the first vibration system; 311, the first diaphragm; 312, the first voice coil; 32, the first magnetic circuit system; 321, the first magnetic gap; 322, the first main magnet; 323, the first auxiliary magnet; 324, the first main pole core; 325, the first auxiliary pole core; 4, the second sounding component; 41, the second vibration system; 411, the second diaphragm; 412, the second voice coil 42, the second magnetic circuit system; 421, the second magnetic gap; 422, the second main magnet; 423, the second auxiliary magnet; 424, the second main pole core; 425, the second auxiliary pole core; 5, the basin frame 51, the first hollow inner hole; 52, the annular basin frame body; 53, the first connecting plate; 54, the first air guide groove; 6, the magnetic bowl; 61, the vertical cylinder; 611, the main cylinder 612, the second connecting plate; 613, the second air guide groove; 62, the transverse ring body; 621, the main ring body; 622, the third connecting plate; 63, the second hollow inner hole; 200, the first sound Panel; 210, first sound outlet; 300, annular seal.

Embodiments of the present invention

The present application will be described in detail below with reference to FIGS. 1 to 11 .

Referring to FIGS. 1-5 , an embodiment of the present application provides a speaker box 100 , which includes a housing 1 provided with an accommodating space 11 and a sound generating unit 2 accommodated in the accommodating space 11 . The housing 1 is provided with a first The sound outlet 141 and the second sound outlet 131, the first sound outlet 141 and the second sound outlet 131 are located on different sides of the speaker box 100; A sound producing component 3 and a second sound producing component 4 for producing sound toward the second sound outlet hole 131 . By arranging the first sound outlet hole 141 and the second sound outlet hole 131 on different sides of the speaker box 100 , the first sound outlet component 3 and the second sound outlet hole that emit sound toward the first sound outlet hole 141 are arranged in the speaker box 100 . 131 The second sounding component 4 for sounding, one sounding component is used for the external sound of the mobile terminal to realize the speaker function, and the other sounding component is used for the non-external sound of the mobile terminal to realize the earpiece function, which realizes a speaker box at the same time. It has the function of transmitting sound from external sound and non-external sound.

Please refer to FIG. 2 and FIGS. 5-8 , the sounding unit 2 further includes a basin frame 5 having a first hollow inner hole 51 and a magnetic bowl 6 having a second hollow inner hole 63 , and the magnetic bowl 6 includes a second hollow inner hole The vertical cylinder 61 of 63 and the transverse ring body 62 surrounding the outer periphery of one end of the vertical cylinder 61, the end of the transverse ring 62 away from the second hollow inner hole 63 is fixed at one end of the basin frame 5, and the vertical cylinder The body 61 extends through the first hollow inner hole 51 . The first sound-generating assembly 3 includes a first vibration system 31 having a first diaphragm 311 and a first voice coil 312 and a first magnetic circuit system 32 for driving the first vibration system 31 to vibrate and sound. The first magnetic circuit system 32 has In the first magnetic gap 321 , the edge of the first diaphragm 311 is fixed on one end of the basin frame 5 away from the transverse ring body 62 , one end of the first voice coil 312 is inserted in the first magnetic gap 321 , and the other end is connected to the first magnetic gap 321 . The diaphragm 311 is connected, and the first magnetic circuit system 32 is disposed in the first hollow inner hole 51 and outside the second hollow inner hole 63 . The second sound-generating assembly 4 includes a second vibration system 41 having a second diaphragm 411 and a second voice coil 412 and a second magnetic circuit system 42 for driving the second vibration system 41 to vibrate and sound. The second magnetic circuit system 42 has The second magnetic gap 421, the second diaphragm 411 is fixed on the transverse ring body 62, one end of the second voice coil 412 is inserted in the second magnetic gap 421, the other end is connected to the second diaphragm 411, the second magnetic circuit The system 42 is arranged in the second hollow inner hole 63 .

By fixing the edge of the first diaphragm 311 on the end of the basin frame 5 away from the transverse ring body 62 , the first magnetic circuit system 32 is arranged in the first hollow inner hole 51 and outside the second hollow inner hole 63 . The second diaphragm 411 is fixed on the transverse ring body 62, and the second magnetic circuit system 42 is arranged in the second hollow inner hole 63, so that the first sound-generating component 3 and the second sound-generating component 4 can be assembled compactly, which is beneficial to the small size of the speaker box 100. design.

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

Referring to FIGS. 2-4 , the housing 1 includes an upper cover 101 and a lower case 102 , and the upper cover 101 is closed on the lower case 102 . The upper cover 101 includes a second end panel 13 , and the lower shell 102 includes a first end panel 12 disposed opposite to the second end panel 13 at intervals, and an edge connected to the first end panel 12 and the second end panel 13 In the enclosure plate 14 between the edges, one of the first sound outlet hole and the second sound outlet hole is arranged on the first end panel 12 or the second end panel 13, and the other is arranged through the enclosure. on board 14. In this embodiment, the first sound outlet hole 141 is formed through the enclosure plate 14 , and the second sound outlet hole 131 is formed through the second end panel 13 . The first sound outlet 141 is arranged through the enclosure plate 14, and the first sound outlet assembly 3 emits sound toward the first sound outlet 141 for transmitting the sound; the second sound outlet 131 is arranged through the second sound outlet 141. On the end panel 13 , the second sound-emitting component 4 emits sound toward the second sound-outlet hole 131 for transmitting non-external sound. It can be understood that the first sound outlet is arranged through the first end panel 12 or the second end panel 13, the second sound outlet is arranged through the enclosure plate 14, or the first sound outlet is arranged through On the enclosure plate 14 , the second sound outlet hole may also be provided through the first end panel 12 . Wherein, the first end panel 12 and the enclosure plate 14 are integrally formed, so as to improve the stability of the speaker box 100 and reduce the assembly process. Of course, the first end panel 12 and the shroud 14 may also be fabricated separately and then assembled together.

Please refer to FIGS. 2-3 and 9-10 , the housing 1 further includes an annular support base 15 extending from the first end panel 12 and protruding into the accommodating space 11 , the second sound outlet 131 and the annular support base 15 They are arranged opposite to each other, the basin frame 5 is arranged between the second sound outlet 131 and the annular support platform 15 , the first diaphragm 311 is sandwiched between the basin frame 5 and the annular support platform 15 , and the first diaphragm 311 is connected to the annular support platform 15 . The stage 15 and the first end panel 12 are enclosed to form a first front acoustic cavity 111 ; the annular support stage 15 is provided with an opening 1511 for connecting the first front acoustic cavity 111 and the first sound outlet 141 . There is a distance between the outer side of the annular support table 15 and the inner side of the enclosure plate 14 , and the housing 1 further includes a sound guide channel 16 . There is a part of the first sound outlet hole 141 , and the sound guide channel 16 penetrates through a communication hole 161 which is provided with the communication opening 1511 and the first sound outlet hole 141 . The sound generated by the vibration of the first diaphragm 311 is transmitted to the outside of the speaker box 100 through the first front acoustic cavity 111 , the opening 1511 , the communication hole 161 and the first sound outlet hole 141 in sequence.

Please refer to FIG. 2 and FIGS. 6-8 , the basin frame 5 includes an annular basin frame body 52 forming a first hollow inner hole 51 and a plurality of first connecting plates 53 spaced in the circumferential direction. The end of the body 52 away from the annular support platform 15 extends toward the transverse annular body 62 , and any two first connecting plates 53 are enclosed to form a second connecting plate for connecting the first hollow inner hole 51 and the accommodating space 11 . An air guide groove 54 . The first air guide groove 54 communicates with the first hollow inner hole 51 and the accommodating space 11 . The first magnetic circuit system 32 is located in the first hollow inner hole 51 and outside the second hollow inner hole 63 . The edge is fixed on one end of the basin frame 5. Therefore, the first magnetic gap 321 communicates with the accommodating space 11 through the first air guide groove 54, thereby enhancing the first diaphragm 311 and the first main pole core 324 and the first The air circulation between the secondary pole cores 325 reduces the air pressure between the first diaphragm 311 , the first main pole core 324 and the first secondary pole core 325 , and speeds up the first diaphragm 311 and the first main pole core 324 The heat dissipation speed between the first sub-pole core 325 and the first sub-pole core 325 further improves the acoustic performance of the speaker box 100 . In this embodiment, the end of the first connecting plate 53 away from the annular basin frame body 52 is connected to the transverse ring body 62 , and the first diaphragm 311 is sandwiched between the annular basin frame body 52 and the annular supporting platform 15 . The vertical cylinder 61 includes a main cylinder 611 and a plurality of second connecting plates 612 spaced along the circumferential direction. The second connecting plates 612 face the first end from the end of the main cylinder 611 facing the first end panel 12 . The panel 12 extends, and any two second connecting plates 612 enclose a second air guide groove 613 for connecting the second hollow inner hole 63 and the first hollow inner hole 51 . The second air guide groove 613 communicates with the second hollow inner hole 63 and the first hollow inner hole 51 , the second magnetic circuit system 42 is located in the second hollow inner hole 63 , and the second diaphragm 411 is fixed on the magnetic bowl 6 , so , the second magnetic gap 421 communicates with the first hollow inner hole 51 through the second air guide groove 613, and the first hollow inner hole 51 communicates with the accommodating space 11 through the first air guide groove 54, thereby enhancing the second The air circulation between the diaphragm 411 and the second main pole core 424 and the second auxiliary pole core 425 reduces the air pressure between the second diaphragm 411 and the second main pole core 424 and the second auxiliary pole core 425 and accelerates the air pressure. The heat dissipation speed between the second diaphragm 411 and the second main pole core 424 and the second auxiliary pole core 425 is improved, thereby improving the acoustic performance of the speaker box 100 .

2 , 5 and 7 , the first magnetic circuit system 32 includes a first main magnet 322 , a first auxiliary magnet 323 , a first main pole core 324 and a first auxiliary pole core 325 , and the first auxiliary magnet 323 surrounds A first magnetic gap 321 is formed between the first auxiliary magnet 323 and the first main magnet 322 ; the first main magnet 322 is fixed on the panel facing the first end of the second connecting plate 612 . 12, the first auxiliary magnet 323 is fixed on the side of the transverse ring body 62 facing the first end panel 12; the first main pole core 324 is arranged on the side of the first main magnet 322 facing the first diaphragm 311 On one side, the first secondary pole core 325 is disposed on the side of the first secondary magnet 323 facing the first diaphragm 311 . In this embodiment, the magnetic permeability of the first main pole core 324 and the first secondary pole core 325 can effectively increase the magnetic flux of the first magnetic gap 321 , thereby improving the acoustic performance of the sounding unit 2 .

Preferably, the first main magnet 322 , the first auxiliary magnet 323 , the second main magnet 422 and the second auxiliary magnet 423 are made of magnetic steel. It can be understood that the first main magnet 322 , the first sub-magnet 323 , the second main magnet 422 and the second sub-magnet 423 can also use natural lodestones.

In this embodiment, the first main magnet 322 is in the shape of a rectangle with missing corners, and there are four first auxiliary magnets 323 , the first connecting plate 53 and the second connecting plate 612 , and one side of the first main magnet 322 corresponds to one The first secondary magnet 323 , a first connecting plate 53 and a second connecting plate 612 . In this embodiment, the transverse ring body 62 includes a main ring body 621 and a plurality of third connecting plates 622 spaced apart in the circumferential direction. The third connecting plates 622 are at the end of the main ring body 621 away from the second hollow inner hole 63 Extending away from the second hollow inner hole 63 , there are also four third connecting plates 622 , and one first auxiliary magnet 323 is fixed on one third connecting plate 622 . It can be understood that, in other embodiments, the third connecting plate 622 may not be provided, and the distance between the inner wall and the outer wall of the main ring body 621 may be set sufficiently large.

5 and 11 , the second magnetic circuit system 42 includes a second main magnet 422 , a second auxiliary magnet 423 , a second main pole core 424 and a second auxiliary pole core 425 , the second main magnet 422 and the second auxiliary magnet 423 are fixed on the first main magnet 322 and are integrally formed with the first main magnet 322 , and the second auxiliary magnet 423 is arranged around the outer periphery of the second main magnet 422 and forms a second magnetic gap 421 with the second main magnet 422 The second main pole core 424 is arranged on the side of the second main magnet 422 facing the second diaphragm 411 , and the second secondary pole core 425 is arranged on the side of the second auxiliary magnet 423 facing the second diaphragm 411 . In this embodiment, the magnetic permeability of the second main pole core 424 and the second secondary pole core 425 can effectively increase the magnetic flux of the second magnetic gap 421 , thereby improving the acoustic performance of the sounding unit 2 .

Referring to FIGS. 2 , 7 and 9-10 , the annular support table 15 includes an annular support portion 151 protruding from the first end panel 12 and a protruding portion extending from the annular support portion 151 away from the first end panel 12 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 disposed away from the first end panel 12 . 1514, the limiting portion 152 includes a second inner side 1521 facing the first front acoustic cavity 111 and a second outer side 1522 opposite to the second inner side 1521. The first outer side 1513 is aligned with the second outer side 1522. The distance L ₁ between an inner side surface 1512 and the first outer side surface 1513 is greater than the distance L ₂ between the second inner side surface 1521 and the second outer side surface 1522 . The supporting end surface 1514 and the second inner side surface 1521 are enclosed to form a slot 153 , which is open. 1511 extends from the first inner side 1512 to the first outer side 1513, the end of the basin frame 5 away from the transverse ring body 62 is inserted into the slot 153, and the edge of the first diaphragm 311 is sandwiched between the basin frame 5 and the support between end faces 1514.

Embodiments of the present application further provide a mobile terminal (not shown in the figure), including a device body (not shown in the figure) and the above-mentioned speaker box 100 . The speaker box 100 is installed in the device body, and the device body includes a The first sound-out panel 200 with a sound-outlet hole 210 communicates with the second sound-outlet hole 131 . Of course, the device body further includes a second sound outlet that communicates with the first sound outlet 141 .

Preferably, the mobile terminal further includes an annular seal 300 , and the annular seal 300 is disposed between the second end panel 13 and the first sound outlet panel 200 and surrounds the outer circumference of the second sound outlet hole 131 . The sound produced by the vibration of the first sound-emitting component 3 is emitted out through the first sound-out hole 141 and the second sound-out hole in turn, so as to realize the speaker function, and the sound produced by the vibration of the second sound-emitting component 4 sequentially passes through the second sound outlet The hole 131 and the first sound outlet hole 210 emit outwards, so as to realize the function of receiving a call (the function of the earpiece). In this embodiment, a speaker box is used to realize the function of receiving a call and the function of speaking at the same time, which is beneficial to the miniaturized design of the mobile terminal.

The above are only the embodiments of the present application. It should be pointed out that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present application, but these belong to the scope of the present application. protected range.

Claims

The speaker box is characterized in that it includes a housing provided with an accommodating space and a sound-emitting unit accommodated in the accommodating space, the housing is provided with a first sound outlet hole and a second sound outlet hole, the The first sound outlet and the second sound outlet are located on different sides of the speaker box;

The sound-generating unit includes a first sound-generating component for sounding toward the first sound-outlet hole, a second sound-generating component for sounding toward the second sound-outlet hole, a basin frame with a first hollow inner hole, and A magnetic bowl with a second hollow inner hole, the magnetic bowl includes a vertical cylinder body with a second hollow inner hole and a transverse ring body arranged around the outer circumference of one end of the vertical cylinder body, the transverse ring body is far from One end of the second hollow inner hole is fixed on one end of the basin frame, and the vertical cylinder extends through the first hollow inner hole;

The first sound-generating assembly includes a first vibration system having a first diaphragm and a first voice coil, and a first magnetic circuit system for driving the first vibration system to vibrate and sound, the first magnetic circuit system having a first A magnetic gap, the edge of the first diaphragm is fixed on one end of the basin frame away from the transverse ring body, one end of the first voice coil is inserted in the first magnetic gap, and the other end is inserted into the first magnetic gap. connected with the first diaphragm, the first magnetic circuit system is arranged in the first hollow inner hole and outside the second hollow inner hole;

The second sound-generating assembly includes a second vibration system with a second diaphragm and a second voice coil and a second magnetic circuit system for driving the second vibration system to vibrate and sound, the second magnetic circuit system having a first Two magnetic gaps, the second diaphragm is fixed on the transverse ring body, one end of the second voice coil is inserted in the second magnetic gap, and the other end is connected to the second diaphragm, so The second magnetic circuit system is arranged in the second hollow inner hole.
The loudspeaker enclosure of claim 1, wherein the housing includes a first end panel, a second end panel spaced apart from the first end panel, and a second end panel connected to the first end panel. A shroud between the edge of the top panel and the edge of the second end panel, one of the first sound outlet and the second sound outlet is provided on the first end panel through Or on the second end panel, the other one penetrates through the enclosure.
The loudspeaker box according to claim 2, wherein the first sound outlet hole is arranged through the enclosure plate, and the second sound outlet hole is arranged through the second end panel; the The casing also includes an annular support platform extending from the first end panel and protruding into the accommodating space, the second sound outlet and the annular support platform are arranged opposite to each other at intervals, and the basin is erected on the accommodating space. between the second sound outlet and the annular support platform, the first diaphragm is sandwiched between the basin frame and the annular support platform, the first diaphragm and the annular support platform A first front sound cavity is formed by enclosing with the first end panel; the annular support platform is provided with an opening for communicating the first front sound cavity and the first sound outlet.
The loudspeaker box according to claim 3, characterized in that there is a distance between the outer side of the annular support platform and the inner side of the enclosure plate, and the casing is further provided with a sound guide channel, the sound guide channel extending from The part of the annular support platform with the opening extends to the part of the enclosure plate with the first sound outlet, and the sound guide channel runs through and connects the opening and the first sound hole. The connection hole of the sound hole.
The speaker box according to claim 3, wherein the basin frame comprises an annular basin frame body forming the first hollow inner hole and a plurality of first connecting plates spaced apart in the circumferential direction, the first connecting plate A connecting plate extends from the end of the annular basin frame body away from the annular support platform toward the transverse ring body, and any two of the first connecting plates are enclosed to form a connection for the first hollow The inner hole and the first air-guiding groove of the accommodating space, the end of the first connecting plate away from the annular basin frame body is connected to the transverse ring body, and the first diaphragm is sandwiched between between the annular basin frame body and the annular support platform.
The speaker box according to any one of claims 3 to 5, wherein the vertical cylindrical body comprises a main cylindrical body and a plurality of second connecting plates spaced apart along the circumferential direction, the second connecting plates are The end of the main cylinder body facing the first end panel extends toward the first end panel, and any two of the second connecting plates are enclosed to form a connection for the second hollow inner hole A second air guide groove with the first hollow inner hole.
The speaker box according to claim 6, wherein the first magnetic circuit system comprises a first main magnet, a first auxiliary magnet, a first main pole core and a first auxiliary pole core, the first auxiliary magnet around the outer circumference of the first main magnet, the first magnetic gap is formed between the first auxiliary magnet and the first main magnet; the first main magnet is fixed on the second connecting plate The end portion facing the first end panel, the first auxiliary magnet is fixed on the side of the transverse ring body facing the first end panel; the first main pole core is installed on the A side of the first main magnet facing the first diaphragm, and the first secondary pole core is disposed on a side of the first secondary magnet facing the first diaphragm.
The speaker box according to claim 7, wherein the second magnetic circuit system comprises a second main magnet, a second auxiliary magnet, a second main pole core and a second auxiliary pole core, the second main magnet and the second auxiliary magnet are both fixed to the first main magnet and integrally formed with the first main magnet, the second auxiliary magnet is arranged around the outer circumference of the second main magnet and is integrated with the first main magnet. The second magnetic gap is formed between the two main magnets; the second main pole core is arranged on the side of the second main magnet facing the second diaphragm, and the second secondary pole core is arranged on the the side of the second auxiliary magnet facing the second diaphragm.
The loudspeaker box according to any one of claims 3 to 5, wherein the annular support base comprises an annular support portion protruding from the first end panel and a support portion extending from the annular support portion away from the The first end panel extends a protruding limiting portion, and the annular support portion includes a first inner side facing the first front acoustic cavity, a first outer side opposite to the first inner side, and a first outer side facing away from the first inner side. The support end surface provided on the first end panel, the limiting portion includes a second inner surface facing the first front acoustic cavity and a second outer surface opposite to the second inner surface, the first outer surface The side surface is aligned with the second outer side surface, the distance between the first inner side surface and the first outer side surface is greater than the distance between the second inner side surface and the second outer side surface, and the supporting end surface A slot is formed around the second inner side surface, the opening extends through the first inner side surface to the first outer side surface, and the end of the basin frame away from the transverse ring body is inserted in the In the card slot, the edge of the first diaphragm is sandwiched between the basin frame and the support end surface.
A mobile terminal, characterized in that it includes a device body and a speaker box according to any one of claims 1 to 9, wherein the speaker box is installed in the device body, and the device body includes a first sound outlet hole. The first sound outlet panel, the first sound outlet hole communicates with the second sound outlet hole.
The mobile terminal according to claim 10, wherein the mobile terminal further comprises an annular sealing member, the annular sealing member is provided between the second end panel and the first sound-emitting panel and surrounds the on the periphery of the second sound outlet.