WO2022061984A1

WO2022061984A1 - Loudspeaker enclosure and mobile terminal

Info

Publication number: WO2022061984A1
Application number: PCT/CN2020/120988
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: CN213426388U

Abstract

The present application provides a loudspeaker enclosure and a mobile terminal. The loudspeaker enclosure comprises a housing and a sound generating unit, wherein the housing is provided with a first sound hole and a second sound hole which are located at different sides of the loudspeaker enclosure; the sound generating unit comprises a basket, a yoke, a first sound generation component for generating sound towards the first sound hole and a second sound generation component for generating sound towards the second sound hole; the yoke is provided in the basket and separates a hollow inner hole of the basket into a first accommodating cavity and a second accommodating cavity; the first sound generation component comprises a first magnetic circuit system and a first vibration system having a first vibration diaphragm, the first magnetic circuit system being provided in the first accommodating cavity, the edge of the first vibration diaphragm being provided at one end of the basket; and the second sound generation component comprises a second magnetic circuit system and a second vibration system having a second vibration diaphragm, the second magnetic circuit system being provided in the second accommodating cavity, the edge of the second vibration diaphragm being provided at the other end of the basket. The loudspeaker enclosure provided in the present application has both a loudspeaker 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 magnetic bowl sandwiched between the first sound-generating component and the second sound-generating component, and a basin with a hollow inner hole The magnetic bowl is fixed in the basin frame and divides the hollow inner hole into a first accommodating cavity and a second accommodating cavity which are arranged up and down; the first sound-generating component includes a first vibration system and a The first magnetic circuit system for driving the first vibration system to vibrate and emit sound, the first magnetic circuit system is arranged in the first accommodating cavity, the first magnetic circuit system has a first magnetic gap, and the first magnetic circuit system has a first magnetic gap. A vibration system includes a first diaphragm and a first voice coil for driving the first diaphragm to vibrate and produce sound, the edge of the first diaphragm is fixed on one end of the basin frame, and the first voice coil One end is connected to the first diaphragm, and the other end is inserted into the first magnetic gap; the second sound-generating component includes a second vibration system and a second magnetic device for driving the second vibration system to vibrate and sound. a circuit system, the second magnetic circuit system is arranged in the second accommodating cavity, the second magnetic circuit system has a second magnetic gap, the second vibration system includes a second diaphragm and is used for driving the The second diaphragm vibrates the second voice coil, the edge of the second diaphragm is fixed on the other end of the basin frame, one end of the second voice coil is connected to the second diaphragm, and the other end is inserted into the second diaphragm. set in the second magnetic gap.

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 arranged through the enclosure, the basin is erected between the first end panel and the second end panel, the first accommodating cavity faces the first end panel, so The second accommodating cavity faces the second end panel.

Further, the first sound outlet is arranged on the first end panel, the second sound outlet is arranged on the enclosure plate, and the first diaphragm is arranged on the first end panel. between the magnetic circuit system and the first sound hole; 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, the first main magnet and the first auxiliary magnet are fixed on the magnetic bowl, and the first auxiliary magnet is arranged around the outer circumference of the first main magnet, between the first auxiliary magnet and the first main magnet The first magnetic gap is formed, the first main pole core is arranged on the side of the first main magnet facing the first diaphragm, and the first secondary pole core is arranged on the first auxiliary magnet the side facing the first diaphragm.

Further, the second diaphragm is arranged between the second magnetic circuit system and the second end panel; the second magnetic circuit system includes a second main magnet, a second auxiliary magnet, a second main magnet a pole core and a second sub-pole core, the second main magnet and the second sub-magnet are both fixed on the magnetic bowl, and the second sub-magnet is arranged around the outer circumference of the second main magnet, The second magnetic gap is formed between the second auxiliary magnet and the second main magnet, and the second main pole core is arranged on the side of the second main magnet facing the second diaphragm, The second secondary pole core is arranged on a side of the second secondary magnet facing the second diaphragm.

Further, both the first main magnet and the second main magnet are rectangular, the first sub-magnet and the second sub-magnet are each provided with four, and each of the first sub-magnets corresponds to the One side of the first main magnet is spaced between two adjacent first auxiliary magnets to form a first air guide gap, and each of the second auxiliary magnets corresponds to one side of the second main magnet, adjacent to each other. A second air-guiding gap is formed between the two second auxiliary magnets.

Further, the first secondary pole core has four first fitting parts which are respectively fitted with the first secondary magnets and a first air release hole which is communicated with the first magnetic gap, and two adjacent ones are provided. Each of the first fitting parts is provided with one of the first air vent holes; the second secondary pole core has four second fitting parts respectively fitted with the second secondary magnets and the Each of the second air vents connected to the second magnetic gap is provided with one second air vent hole between two adjacent second bonding portions.

Further, the casing further includes an annular support platform extending from the second end panel and protruding into the accommodating space, the first sound outlet and the annular support platform are arranged opposite to each other at intervals, so The basin is erected between the annular support platform and the first sound outlet, the second diaphragm is enclosed with the annular support platform and the second end panel to form a first front acoustic cavity, the The annular support platform is provided with an opening for communicating the first front sound cavity and the second sound outlet hole.

Further, there is a distance between the outer side of the annular support table and the inner side of the enclosure plate, and the casing is further provided with a sound guide channel, and the sound guide channel is provided with the sound guide channel from the annular support table. The portion of the opening extends to the portion of the enclosure plate where the second sound outlet hole is provided, and the sound guide passage is provided with a communication hole connecting the opening and the second sound outlet hole through.

Further, the annular support table includes an annular support portion protruding from the second end panel and an annular limiting portion extending from the annular support portion toward the first end panel. The annular support part includes a first inner side facing the first front acoustic cavity, a first outer side facing the first inner side, and a supporting end surface facing the first end panel. The part 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 is aligned with the second outer side, and the first outer side is aligned with the second outer side. The distance between an 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 enclose a slot, and the The opening extends from the first inner side to the first outer side, the end of the basin frame away from the first sound outlet is inserted into the card slot, and the edge of the second diaphragm is It is sandwiched between the basin frame and the supporting end surface.

The second purpose of the present application is to provide a mobile terminal, including a device body, an annular seal, and a speaker box as described above, wherein the speaker box and the annular seal are both installed in the device body, and the device body It includes a first sound outlet panel provided with a first sound outlet hole, and the first sound outlet hole communicates with the first sound outlet hole; the annular seal is arranged on the first end panel and the first sound outlet. A sound outlet panel surrounds and surrounds the outer periphery of the first 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 bowl is fixed in the basin frame and the hollow inner hole of the basin frame is divided into There are two accommodating cavities arranged up and down, and the magnetic circuit system of one sounding component is located in one receiving cavity, which makes the assembly of the two sounding components more compact, which is conducive to the miniaturized design of the speaker box; (3) The magnetic bowl can be directly welded by welding. The way of fixing to the basin frame, the assembly method is simple and fast, and the stability is high.

Description of drawings

1 is an assembly diagram of a speaker box and a first sound-emitting panel provided by an embodiment of the present 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 an assembly diagram of a basin frame, a magnetic bowl, a first main magnet, a first sub-magnet, a second main magnet, and a second sub-magnet according to an embodiment of the present application;

Fig. 7 is a sectional view along B-B in Fig. 6;

FIG. 8 is an assembly diagram of a basin frame, a magnetic bowl, a second main magnet, and a second sub-magnet provided by an embodiment of the application;

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

FIG. 10 is a schematic structural diagram of another angle of the lower case 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; 121, first sound outlet Hole; 13, second end panel; 14, enclosure plate; 141, second sound hole; 15, annular support table; 151, annular support part; 1511, opening; 1512, first inner side; 1513, first Outer side surface; 1514, support end surface; 152, annular limiter; 1521, second inner side surface; 1522, second outer side surface; 153, card slot; 16, sound guide channel; 161, communication hole; 2, sounding unit 3, the first sound component; 31, the first vibration system; 311, the first diaphragm; 312, the first voice coil; 32, the first magnetic circuit system; 320, the first magnetic gap; 321, the first main magnet 322, the first auxiliary magnet; 323, the first main pole core; 324, the first auxiliary pole core; 3241, the first fitting part; 41, the second vibration system; 411, the second diaphragm; 412, the second voice coil; 42, the second magnetic circuit system; 420, the second magnetic gap; 421, the second main magnet; 422, the first Second pair of magnets; 423, the second main pole core; 424, the second auxiliary pole core; 4241, the second fitting part; 4242, the second air vent; 425, the second air guide gap; 5, the magnetic bowl; 6, Basin frame; 61, hollow inner hole; 611, first accommodating cavity; 612, second accommodating cavity; 62, air guide hole; 200, first sound outlet panel; 210, first sound outlet hole; 300, annular seal.

Embodiments of the present invention

The present application will be described in detail below with reference to FIGS. 1 to 10 .

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 121 and the second sound outlet 141 are located on different sides of the speaker box 100 . A sound-generating component 3 and a second sound-generating component 4 for generating sound toward the second sound outlet hole 141 .

By arranging the first sound-outlet hole 121 and the second sound-outlet hole 141 on different sides of the speaker box 100 , the first sound-emitting component 3 and the second sound-outlet hole that emit sound toward the first sound-outlet hole 121 are arranged in the speaker box 100 . 141 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 FIGS. 5-8 , the sound-generating unit 2 further includes a magnetic bowl 5 sandwiched between the first sound-generating component 3 and the second sound-generating component 4 and a basin frame 6 having a hollow inner hole 61 , and the magnetic bowl 5 is fixed on the Inside the pot frame 6, the hollow inner hole 61 is divided into a first accommodating cavity 611 and a second accommodating cavity 612 which are arranged up and down. The first sound generating assembly 3 includes a first vibration system 31 and a first magnetic circuit system 32 for driving the first vibration system 31 to vibrate and sound. The first magnetic circuit system 32 is arranged in the first accommodating cavity 611. 32 has a first magnetic gap 320, the first vibration system 31 includes a first diaphragm 311 and a first voice coil 312 for driving the first diaphragm 311 to vibrate and sound, and the edge of the first diaphragm 311 is fixed on the basin frame 6 One end of the first voice coil 312 is connected to the first diaphragm 311 , and the other end is inserted into the first magnetic gap 320 . The second sound-generating component 4 includes a second vibration system 41 and a second magnetic circuit system 42 for driving the second vibration system 41 to vibrate and sound. The second magnetic circuit system 42 is arranged in the second accommodating cavity 612 . 42 has a second magnetic gap 420, the second vibration system 41 includes a second diaphragm 411 and a second voice coil 412 for driving the second diaphragm 411 to vibrate and sound, and the edge of the second diaphragm 411 is fixed on the basin frame 6 At the other end of the second voice coil 412 , one end of the second voice coil 412 is connected to the second diaphragm 411 , and the other end is inserted into the second magnetic gap 420 .

By arranging the magnetic bowl 5, the magnetic bowl 5 is fixed in the basin frame 6 and the hollow inner hole 61 of the basin frame 6 is divided into a first accommodating cavity 611 and a second accommodating cavity 612 arranged up and down. The first magnetic circuit system 32 is set in the first accommodating cavity 611, the edge of the first diaphragm 311 is fixed on one end of the basin frame 6, the second magnetic circuit system 42 is set in the second accommodating cavity 612, and the edge of the second diaphragm 411 is fixed At the other end of the basin frame 6 , the two sound-generating components are assembled compactly, which is beneficial to the miniaturized design of the speaker box 100 . In addition, the magnetic bowl 5 provided in the embodiment of the present application can be fixed to the bowl frame 6 by direct welding, and the assembly method is simple and fast, and has high stability.

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 and 7 , the housing 1 includes an upper cover 101 and a lower case 102 , and the upper cover 101 is covered on the lower case 102 . The upper cover 101 includes a first end panel 12 , and the lower shell 102 includes a second end panel 13 disposed opposite to the first end panel 12 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 the plate 14 , the basin frame 6 is arranged between the first end panel 12 and the second end panel 13 , the first accommodating cavity 611 faces the first end panel 12 , and the second accommodating cavity 612 faces the second end panel 13 . In this embodiment, the first sound outlet 121 is arranged through the first end panel 12, the second sound outlet 141 is arranged through the enclosure plate 14, and the basin frame 6 is arranged on the first sound outlet 121 and the first sound outlet 121 and the first sound outlet 141. Between the two end panels 13 , the first accommodating cavity 611 faces the first sound outlet hole 121 , and the second accommodating cavity 612 faces the second end panel 13 . The first sound outlet 121 is penetrated on the first end panel 12, and the first sound producing component 3 emits sound toward the first sound outlet 121 for the transmission of non-external sound; the second sound outlet 141 is penetrated through Set on the enclosure plate 14, the second sound-generating component 4 emits sound toward the second sound-outlet hole 141 for transmitting the external sound. It can be understood that the first sound outlet is arranged through the second end panel 13, the second sound outlet is arranged through the enclosure plate 14, or the first sound outlet is arranged through the enclosure plate 14, and the second outlet is arranged through the enclosure plate 14. It is also possible for the sound hole to be provided through the first end panel 12 or the second end panel 13 . Wherein, the second end panel 13 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 second end panel 13 and the shroud 14 can also be fabricated separately and then assembled together.

Please refer to FIG. 2 and FIG. 5 , the first diaphragm 311 is disposed between the first magnetic circuit system 32 and the first sound outlet 121 ; the first magnetic circuit system 32 includes a first main magnet 321 , a first auxiliary magnet 322 , The first main pole core 323, the first auxiliary pole core 324, the first main magnet 321 and the first auxiliary magnet 322 are all fixed on the magnetic bowl 5, and the first auxiliary magnet 322 is arranged around the outer circumference of the first main magnet 321, A first magnetic gap 320 is formed between the first auxiliary magnet 322 and the first main magnet 321 , the first main pole core 323 is disposed on the side of the first main magnet 321 facing the first diaphragm 311 , and the first auxiliary pole core 324 It is disposed on the side of the first auxiliary magnet 322 facing the first diaphragm 311 . In this embodiment, the magnetic permeability of the first main pole core 323 and the first secondary pole core 324 can effectively increase the magnetic flux of the first magnetic gap 320 , thereby improving the acoustic performance of the sounding unit 2 .

Please refer to FIG. 2 and FIG. 5 again, the second diaphragm 411 is disposed between the second magnetic circuit system 42 and the second end panel 13 ; the second magnetic circuit system 42 includes a second main magnet 421 and a second auxiliary magnet 422 , the second main pole core 423 and the second auxiliary pole core 424 , the second main magnet 421 and the second auxiliary magnet 422 are fixed in the magnetic bowl 5 , and the second auxiliary magnet 422 is arranged around the outer circumference of the second main magnet 421 , a second magnetic gap 420 is formed between the second auxiliary magnet 422 and the second main magnet 421 , the second main pole core 423 is disposed on the side of the second main magnet 421 facing the second diaphragm 411 , and the second auxiliary pole core 424 is disposed on the side of the second auxiliary magnet 422 facing the second diaphragm 411 . In this embodiment, the magnetic permeability of the second main pole core 423 and the second secondary pole core 424 can effectively increase the magnetic flux of the second magnetic gap 420 , thereby improving the acoustic performance of the sounding unit 2 .

Preferably, the first main magnet 321 , the first auxiliary magnet 322 , the second main magnet 421 and the second auxiliary magnet 422 are made of magnetic steel. It can be understood that the first main magnet 321 , the first sub-magnet 322 , the second main magnet 421 and the second sub-magnet 422 can also use natural lodestones.

Preferably, both the first main magnet 321 and the second main magnet 421 are rectangular, and each of the first sub-magnets 322 and the second sub-magnets 422 is provided with four, and each first sub-magnet 322 corresponds to one of the first main-magnets 321 A first air-guiding gap 325 is formed between two adjacent first sub-magnets 322 at intervals. Each second sub-magnet 422 corresponds to one side of the second main magnet 421 . A second air-guiding gap 425 is formed therebetween. In this embodiment, an air guide hole 62 communicated with the first air guide gap 325 and the second air guide gap 425 is formed through the basin frame 6 . The air guide hole 62 communicates with the first air guide gap 325, which enhances the air circulation between the first diaphragm 311, the first main pole core 323 and the first secondary pole core 324, and reduces the distance between the first diaphragm 311 and the first main pole. The air pressure between the core 323 and the first secondary pole core 324 accelerates the heat dissipation speed between the first diaphragm 311 and the first main pole core 323 and the first secondary pole core 324, thereby improving the acoustics of the speaker box 100 performance. The air guide hole 62 communicates with the second air guide gap 425, which enhances the air circulation between the second diaphragm 411, the second main pole core 423 and the second secondary pole core 424, and reduces the distance between the second diaphragm 411 and the second main pole. The air pressure between the core 423 and the second secondary pole core 424 accelerates the heat dissipation speed between the second diaphragm 411 and the second main pole core 423 and the second secondary pole core 424, thereby improving the acoustics of the speaker box 100 performance.

Referring to FIG. 5 , the first secondary pole core 324 has four first abutting portions 3241 respectively attached to the first secondary magnets 322 and a first vent hole 3242 communicating with the first magnetic gap 320 , two adjacent ones. A first vent hole 3242 is provided between the first fitting parts 3241; the second secondary pole core 424 has four second fitting parts 4241 respectively fitted with the second secondary magnets 422 and a second magnetic gap The second air vent 4242 communicated with 420 is provided with a second air vent 4242 between two adjacent second fitting portions 4241 . The first vent hole 3242 is provided, which further enhances the air circulation between the first diaphragm 311 and the first main pole core 323 and the first secondary pole core 324, and reduces the difference between the first diaphragm 311 and the first main pole core 323. The air pressure between the first secondary pole cores 324 accelerates the heat dissipation speed between the first diaphragm 311 , the first main pole core 323 and the first secondary pole core 324 , thereby improving the acoustic performance of the speaker box 100 . Setting the second air vent 4242 further enhances the air circulation between the second diaphragm 411, the second main pole core 423 and the second secondary pole core 424, and reduces the difference between the second diaphragm 411 and the second main pole core 423. The air pressure between the second sub-pole cores 424 accelerates the heat dissipation speed between the second diaphragm 411 , the second main pole core 423 and the second sub-pole core 424 , thereby improving the acoustic performance of the speaker box 100 . In this embodiment, the four first fitting parts 3241 and the four second fitting parts 4241 are all integrally formed, which is convenient for quick assembly.

Please refer to FIGS. 2-3 and 9-10 , the housing 1 further includes an annular support base 15 extending from the second end panel 13 and protruding into the accommodating space 11 , the first sound outlet 121 and the annular support base 15 . The basin frame 6 is arranged between the annular support platform 15 and the first sound outlet 121, and the second diaphragm 411 is enclosed with the annular support platform 15 and the second end panel 13 to form the first front acoustic cavity 111. The support table 15 is provided with an opening 1511 for communicating the first front acoustic cavity 111 and the second sound outlet hole 141 .

Preferably, the annular support table 15 includes an annular support portion 151 protruding from the second end panel 13 and an annular limiting portion 152 extending and protruding from the annular support portion 151 toward the first end panel 12 . The annular support portion 151 It includes a first inner side surface 1512 facing the first front acoustic cavity 111 , a first outer side surface 1513 arranged opposite to the first inner side surface 1512 , and a supporting end surface 1514 arranged toward the first end panel 12 . A second inner side 1521 of the front acoustic cavity 111 and a second outer side 1522 opposite to the second inner side 1521, the first outer side 1513 and the second outer side 1522 are aligned, and the first inner side 1512 and the first outer side The distance L ₁ between the 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 , and the opening 1511 extends through the first inner side surface 1512 To the first outer side 1513 , the end of the basin frame 6 away from the first sound outlet 121 is inserted into the slot 153 , and the edge of the second diaphragm 411 is sandwiched between the basin frame 6 and the supporting end surface 1514 .

Please refer to FIGS. 2-3 and 9-10 again, there is a distance between the outer side of the annular support table 15 and the inner side of the enclosure plate 14 , the housing 1 is further provided with a sound guide channel 16 , and the sound guide channel 16 extends from the annular support table 15 The part with the opening 1511 extends to the part of the enclosure 14 where the second sound outlet 141 is formed, and the sound guide channel 16 penetrates through the communication hole 161 which is provided with the opening 1511 and the second sound outlet 141 . The sound generated by the vibration of the second diaphragm 411 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 second sound outlet hole 141 in sequence.

Embodiments of the present application further provide a mobile terminal (not shown in the figure), including a device body (not shown in the figure), an annular seal 300 and the above-mentioned speaker box 100 , and the speaker box 100 and the annular seal 300 are both installed In the device body, the device body includes a first sound outlet panel 200 provided with a first sound outlet hole 210, the first sound outlet hole 210 communicates with the first sound outlet hole 121, and an annular seal 300 is provided on the first end panel 12 and the first sound outlet panel 200 and surrounds the outer circumference of the first sound outlet hole 121 . Of course, the device body is also provided with a second sound outlet that communicates with the second sound outlet 141 .

The sound produced by the vibration of the first sound-generating component 3 is sent out through the first sound-out hole 121 and the first sound-out hole 210 in turn, so as to realize the function of receiving the call (the function of the earpiece), and the sound produced by the vibration of the second sound-emitting component 4 passes through in turn. Through the second sound outlet 141, the second sound outlet emits to the outside, so as to realize the speaker function.

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 generating sound toward the first sound-outlet hole, a second sound-generating component for generating sound toward the second sound-emitting hole, sandwiched between the first sound-generating component and A magnetic bowl between the second sound-generating components and a pot frame with a hollow inner hole, the magnetic bowl is fixed in the pot frame and divides the hollow inner hole into a first accommodating cavity and a hollow inner hole arranged up and down. the second accommodating cavity;

The first sound-generating component includes a first vibration system and a first magnetic circuit system for driving the first vibration system to vibrate and sound, the first magnetic circuit system is arranged in the first accommodating cavity, and the first A magnetic circuit system has a first magnetic gap, the first vibration system includes a first diaphragm and a first voice coil for driving the first diaphragm to vibrate and sound, and the edge of the first diaphragm is fixed on the One end of the basin frame, one end of the first voice coil is connected to the first diaphragm, and the other end is inserted in the first magnetic gap;

The second sound-generating assembly includes a second vibration system and a second magnetic circuit system for driving the second vibration system to vibrate and sound, the second magnetic circuit system is arranged in the second accommodating cavity, and the first The second magnetic circuit system has a second magnetic gap, the second vibration system includes a second diaphragm and a second voice coil for driving the second diaphragm to vibrate and sound, and the edge of the second diaphragm is fixed on the On the other end of the basin frame, one end of the second voice coil is connected to the second diaphragm, and the other end is inserted into the second magnetic gap.
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 the second end panel and the other one penetrate through the enclosure, the basin is erected between the first end panel and the second end panel, the first accommodating The cavity faces the first end panel and the second receiving cavity faces the second end panel.
The loudspeaker box according to claim 2, wherein the first sound outlet hole is arranged through the first end panel, and the second sound outlet hole is arranged through the enclosure plate; the The first diaphragm is arranged between the first magnetic circuit system and the first sound hole; the first magnetic circuit system includes a first main magnet, a first auxiliary magnet, a first main pole core and a first A secondary pole core, the first main magnet and the first secondary magnet are both fixed on the magnetic bowl, and the first secondary magnet is arranged around the outer circumference of the first main magnet, the first secondary magnet The first magnetic gap is formed between the auxiliary magnet and the first main magnet. The first main pole core is arranged on the side of the first main magnet facing the first diaphragm. The secondary pole core is arranged on the side of the first secondary magnet facing the first diaphragm.
The speaker box according to claim 3, wherein the second diaphragm is arranged between the second magnetic circuit system and the second end panel; the second magnetic circuit system comprises a second a 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 in the magnetic bowl, and the second auxiliary magnet surrounds It is arranged on the outer circumference of the second main magnet, the second magnetic gap is formed between the second auxiliary magnet and the second main magnet, and the second main pole core is arranged between the second main magnet. On the side facing the second diaphragm, the second secondary pole core is disposed on the side of the second secondary magnet facing the second diaphragm.
The speaker box according to claim 4, wherein the first main magnet and the second main magnet are both rectangular, and the first auxiliary magnet and the second auxiliary magnet are each provided with four, Each of the first sub-magnets corresponds to one side of the first main magnet, and a first air-guiding gap is formed between two adjacent first sub-magnets, and each of the second sub-magnets corresponds to the On one side of the second main magnet, a second air-guiding gap is formed between two adjacent second sub-magnets.
The loudspeaker box according to claim 5, wherein the first secondary pole core has four first fitting parts respectively fitted with the first secondary magnets and communicated with the first magnetic gap Each of the first air vent holes is provided between two adjacent first fitting parts; the second secondary pole core has four which are respectively attached to each of the second secondary magnets. The second abutting portion and a second air vent communicating with the second magnetic gap are provided, and one second air vent is provided between two adjacent second adhering portions.
The loudspeaker box according to any one of claims 3 to 6, wherein the housing further comprises an annular support platform extending from the second end panel and protruding into the accommodating space, the The first sound outlet is arranged opposite to the annular support platform, the basin is erected between the annular support platform and the first sound outlet, and the second diaphragm is connected to the annular support platform and the ring-shaped support platform. The second end panel encloses a first front sound cavity, and the annular support platform is provided with an opening for communicating the first front sound cavity and the second sound outlet hole.
The loudspeaker box according to claim 7, 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 shell 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 second sound outlet, and the sound guide channel is provided with a connection between the opening and the second sound hole. The connection hole of the sound hole.
The loudspeaker box according to claim 7, wherein the annular support table comprises an annular support portion protruding on the second end panel and a ring support portion from the annular support portion toward the first end panel An annular limiting portion extending and protruding, the annular support portion includes a first inner side facing the first front acoustic cavity, a first outer side facing the first inner side, and a first end portion facing the first end The support end surface provided on the panel, the annular limiting part 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 The second outer side surfaces are aligned, 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 is connected to the first outer side surface. The two inner sides are enclosed to form a card slot, the opening extends from the first inner side to the first outer side, and the end of the basin frame away from the first sound outlet is inserted into the card In the groove, the edge of the second diaphragm is sandwiched between the basin frame and the support end surface.
The mobile terminal is characterized by comprising a device body, an annular seal and the speaker box according to any one of claims 1 to 9, wherein the speaker box and the annular seal are both installed in the device body, so The device body includes a first sound outlet panel provided with a first sound outlet hole, and the first sound outlet hole communicates with the first sound outlet hole; the annular seal is provided on the first end panel and the first sound outlet. The first sound-outlet panels surround the outer circumference of the first sound-outlet hole.