WO2022061983A1 - Speaker box and mobile terminal - Google Patents

Speaker box and mobile terminal Download PDF

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Publication number
WO2022061983A1
WO2022061983A1 PCT/CN2020/120987 CN2020120987W WO2022061983A1 WO 2022061983 A1 WO2022061983 A1 WO 2022061983A1 CN 2020120987 W CN2020120987 W CN 2020120987W WO 2022061983 A1 WO2022061983 A1 WO 2022061983A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
cavity
sound
panel
diaphragm
Prior art date
Application number
PCT/CN2020/120987
Other languages
French (fr)
Chinese (zh)
Inventor
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 (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Publication of WO2022061983A1 publication Critical patent/WO2022061983A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the present application relates to the technical field of electro-acoustics, and in particular, to a speaker box and a mobile terminal.
  • smartphones In the era of mobile Internet, smartphones have become the most common and convenient mobile terminal devices. At present, smartphones have various functions, one of which is to provide high-quality music functions, so speaker boxes for playing sound are widely used in smart mobile devices.
  • the existing speaker box generally has the function of speaker, but it does not have the function of speaker and receiver at the same time.
  • the structure of the existing speaker box is not compact enough, and it is difficult to achieve a lighter and smaller size, or it will be difficult to realize the miniaturization.
  • the magnetic performance is deteriorated and the acoustic performance is degraded, and ultimately it is difficult to meet the technical requirements of the miniaturization development trend of smart mobile devices.
  • One of the objectives of the present application is to provide a speaker box, which has the functions of speaking and receiving, and has a nested structure while realizing the functions of speaking and receiving, so that the speaker box has a compact structure on the premise It can also ensure magnetic performance and acoustic performance, which can well meet the needs of the development of miniaturization of mobile terminals.
  • a speaker box comprising a box body with an accommodating cavity and a sound generating unit arranged in the accommodating cavity, the box body comprising a first panel, a A second panel opposite to the panel and an enclosure connected between the first panel and the second panel; the second panel is provided with a first sound outlet, and the enclosure is provided There is a second sound hole;
  • the sound generating unit includes a basin frame, a magnetic bowl, a first vibration system, a second vibration system, a first magnetic circuit system for driving the first vibration system to sound, and a first magnetic circuit system for driving the second vibration system to sound. a second magnetic circuit system and a magnetic connection part connected to the first magnetic circuit system and the second magnetic circuit system;
  • the basin frame is connected to the box body, and the basin frame has a hollow inner hole;
  • the magnetic bowl includes a connecting portion connected with one end of the basin frame and an embedded portion extending from the connecting portion and passing through the hollow inner hole;
  • the embedded part has a cavity, the cavity has a cavity opening facing the first sound outlet hole, and a first through hole is formed through the bottom of the cavity;
  • the first magnetic circuit system is arranged in the cavity, the second magnetic circuit system is arranged between the outer wall of the embedded part and the inner side wall of the hollow inner hole, and the magnetic connection part is penetrated
  • the first through hole is connected to the first magnetic circuit system and the second magnetic circuit system at both ends, the first magnetic circuit system has a first magnetic gap located in the cavity, so the second magnetic circuit system has a second magnetic gap outside the cavity and inside the hollow inner hole;
  • the first vibration system includes a first diaphragm connected to the magnetic bowl and a first voice coil, one end of which is inserted in the first magnetic gap and used to drive the first diaphragm to emit sound;
  • the second vibration system includes a second diaphragm connected to the other end of the basin frame and a second voice coil, one end of which is inserted in the second magnetic gap and used to drive the second diaphragm to emit sound, so The second diaphragm and the box are enclosed to form a first front acoustic cavity communicating with the second sound outlet.
  • the embedded portion includes a first transverse plate disposed opposite to the first sound outlet hole and an annular longitudinal plate extending from the edge of the first transverse plate toward the first diaphragm, the The first through hole is provided through the first transverse plate, and the first transverse plate and the annular longitudinal plate are enclosed to form the concave cavity;
  • the connecting portion is a second transverse plate extending from an end of the annular longitudinal plate away from the first transverse plate in a direction away from the cavity opening.
  • the first magnetic circuit system includes a first main magnetic steel, a first auxiliary magnetic steel, a first main pole core, and a first auxiliary pole core;
  • the second magnetic circuit system includes a second main magnetic steel, a second auxiliary magnetic steel, a second main pole core, and a second auxiliary pole core;
  • the first main magnetic steel and the second main magnetic steel are respectively stacked on opposite sides of the magnetic connection part, and the first main magnetic steel, the magnetic connection part and the second main magnetic steel Steel integral molding;
  • the first auxiliary magnetic steel is stacked on the surface of the first transverse plate located in the cavity, and the first auxiliary magnetic steel is spaced on the outer circumference of the first main magnetic steel and is connected to the the first main magnetic steel is enclosed to form the first magnetic gap;
  • the first main pole core is stacked on the surface of the first main magnet steel facing the first diaphragm;
  • the first secondary pole core is stacked on the surface of the first secondary magnetic steel facing the first diaphragm;
  • the second secondary magnetic steel is stacked on the surface of the second transverse plate facing the second diaphragm, and is enclosed with the second main magnetic steel to form the second magnetic gap;
  • the second main pole core is stacked on the surface of the second main magnet steel facing the second diaphragm;
  • the second secondary pole core is stacked on the surface of the second secondary magnetic steel facing the second diaphragm.
  • the basin frame is provided with a groove for connecting the accommodating cavity and the hollow inner hole; the first transverse plate and/or the annular longitudinal plate is provided with a hollow inner hole. a second through hole communicating with the cavity.
  • the basin frame includes a hollow frame, two first extension arms and two second extension arms;
  • the two first extension arms and the two second extension arms both extend from the hollow frame body toward the second transverse plate and are connected with the second transverse plate, and the two first extension arms
  • the arms are arranged oppositely, the two second extension arms are arranged oppositely, and the adjacent first extension arms and the second extension arms enclose the groove;
  • the first transverse plate and/or the annular longitudinal plate are provided with four second through holes; and/or,
  • the first secondary pole core is provided with a gap that communicates with the second through hole; the second main magnetic steel is provided with a first escape port communicated with the second through hole; the second main pole The core is provided with a second escape port communicating with the first escape port.
  • the box body further includes an annular support platform extending from the first panel and protruding into the accommodating cavity, the connecting portion and the annular support platform are arranged opposite to each other at intervals, and the second vibration system and The second magnetic circuit system is arranged between the annular support platform and the connecting portion, and the second diaphragm, the annular support platform and the first panel are enclosed to form the first front acoustic cavity;
  • the annular support platform is provided with an opening for communicating the first front acoustic cavity and the second acoustic outlet.
  • the box body 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 second sound outlet hole is arranged, and the sound guide channel is provided with a communication hole connecting the opening and the second sound outlet hole through.
  • the annular support table includes an annular support portion protruding from the first panel and a limiting portion extending from the annular support portion toward the connecting portion, and the second diaphragm is clamped. on the annular support portion, and the basin frame is connected to the surface of the second diaphragm facing away from the annular support portion; the limiting portion abuts the end of the second diaphragm and abuts The basin frame is close to the outer wall of the second diaphragm.
  • the second purpose of the present application is to provide a mobile terminal, including a speaker box and a terminal panel, the speaker box is the above-mentioned speaker box, the second panel is attached to the terminal panel, and the terminal panel A third sound outlet is provided, and the third sound outlet communicates with the first sound outlet.
  • a sealing member for sealing the terminal panel and the second panel is further provided between the terminal panel and the second panel.
  • the beneficial effect of the present application is that: in the speaker box provided by the present application, a first sound outlet hole is arranged on the second panel of the box body, a second sound outlet hole is arranged on the enclosure plate, and at the same time, the box body is respectively provided with a first sound outlet hole and a second sound outlet hole.
  • the magnetic connection part arranged in the first through hole connects the first magnetic circuit system and the second magnetic circuit system, which makes the thickness of the magnetic steel not decrease when the speaker box is miniaturized, and ensures the magnetic performance of the speaker box , which in turn has excellent acoustic performance.
  • the mobile terminal provided by the present application includes the above-mentioned speaker box, it has the functions of speaking and receiving, and at the same time has excellent acoustic performance.
  • the above-mentioned speaker box has a nested structure, it occupies a relatively small space in the mobile terminal. , so that the mobile terminal can be miniaturized.
  • FIG. 1 is a schematic three-dimensional structure diagram of a speaker box provided by an embodiment of the present application.
  • Fig. 2 is the sectional schematic diagram of A-A in Fig. 1;
  • Fig. 3 is the sectional schematic diagram of B-B in Fig. 1;
  • Fig. 4 is the exploded schematic diagram of Fig. 1;
  • FIG. 5 is a schematic three-dimensional structure diagram of the sound-generating unit after the speaker box of FIG. 1 is removed;
  • Fig. 6 is the schematic sectional view of C-C in Fig. 5;
  • FIG. 7 is a schematic three-dimensional structure diagram of the box body after the second panel is removed.
  • Fig. 8 is the three-dimensional structure schematic diagram of magnetic bowl
  • Fig. 9 is the three-dimensional structure schematic diagram of basin frame
  • Fig. 10 is a three-dimensional schematic diagram of the first main magnet, the connecting magnetic part and the second main magnet which are integrally formed;
  • FIG. 11 is a schematic three-dimensional structure diagram of the second main pole core
  • FIG. 12 is a schematic perspective view of a mobile terminal
  • Fig. 13 is a D-D cross-sectional schematic diagram in Fig. 12;
  • the speaker box 100 provided in the embodiment of the present application includes a box body 10 and a sound-generating unit 200 .
  • the box body 10 has a accommodating cavity 100 a , and the sound-generating unit 200 is arranged in the accommodating cavity 100 a .
  • the body 200 includes a basin frame 20 , a magnetic bowl 30 , a first vibration system 40 , a second vibration system 50 , a first magnetic circuit system 60 , a second magnetic circuit system 70 and a magnetic connection part 80 .
  • the box body 10 includes a first panel 101, a second panel 102, and an enclosure panel 103, wherein the first panel 101 and the second panel 102 are disposed opposite to each other, and the enclosure panel 103 connects the first panel 101 and the second panel 102.
  • the first panel 101 , the enclosure panel 103 and the second panel 102 enclose a receiving cavity 100a.
  • the second panel 102 is provided with a first sound outlet hole 1021
  • the enclosure panel 103 is provided with a second sound outlet hole 1031. Since the enclosure panel 103 is connected between the first panel 101 and the second panel 102, the first The sound outlet 1021 and the second sound outlet 1031 face two different directions, so that the speaker box 100 can emit sound from different directions.
  • the basin frame 20 is connected with the box body 10 , and the basin frame 20 has a hollow inner hole 201 .
  • the magnetic bowl 30 includes a connecting portion 301 and an embedded portion 302 , wherein the connecting portion 301 is connected to one end of the bowl frame 20 , and the embedded portion 302 extends from the connecting portion 301 and passes through the hollow inner hole 201 .
  • the embedded portion 302 has a cavity 3021 , the cavity 3021 has a cavity 3022 facing the first sound outlet hole 1021 , and a first through hole 3023 is formed through the bottom of the cavity 3021 .
  • the first magnetic circuit system 60 is disposed in the cavity 3021, the first magnetic circuit system 60 has a first magnetic gap 601, and the first magnetic circuit system 60 is used for driving the first vibration system 40 to emit sound.
  • the first vibration system 40 includes a first diaphragm 401 and a first voice coil 402; wherein, the first diaphragm 401 is connected to the magnetic bowl 30; one end of the first voice coil 402 is inserted in the first magnetic gap 601, and the other end is connected to the magnetic bowl 30.
  • the first diaphragm 401 is connected, and after the first voice coil 402 is powered on, the first diaphragm 401 can be driven to emit sound.
  • the second magnetic circuit system 70 is disposed between the outer wall of the embedded portion 302 and the inner side wall of the hollow inner hole 201 .
  • the second magnetic circuit system 70 has a second magnetic gap 701 , and the second magnetic circuit system 70 is used to drive the second magnetic circuit system 70 .
  • the vibration system 50 emits sound.
  • the second vibration system 50 includes a second diaphragm 501 and a second voice coil 502; wherein, the second diaphragm 501 is connected to the other end of the basin frame 20; one end of the second voice coil 502 is inserted into the second magnetic gap 701 and the other end is connected to the second diaphragm 501. After the second voice coil 502 is powered on, the second diaphragm 501 can be driven to emit sound.
  • the second diaphragm 501 is enclosed with the box body 10 to form a first front acoustic cavity 100b, and the first front acoustic cavity 100b is communicated with the second sound outlet hole 1031 .
  • the magnetic connection part 80 is penetrated in the first through hole 3023 , one end of the magnetic connection part 80 is connected to the first magnetic circuit system 60 , and the other end is connected to the second magnetic circuit system 70 .
  • the two magnetic circuit systems 70 communicate with each other.
  • the first sound outlet hole 1021 is arranged on the second panel 102 of the box body 10 and the second sound outlet hole 1031 is arranged on the enclosure plate 103 to realize the first sound outlet hole.
  • the speaker box 100 can emit sound in different directions;
  • a magnetic circuit system 60 is installed in the cavity 3021 of the magnetic bowl 30, and the second vibration system 50 and the second magnetic circuit system 70 for driving the second vibration system 50 to sound are installed on the outer wall of the cavity 3021 and the basin frame Between the inner side walls of the hollow inner hole 201 of the Therefore, the speaker box 100 can be miniaturized, and the sound generated by the first magnetic circuit system 60 driving the first vibration system 40 is transmitted from the first sound outlet 1021, while the second magnetic circuit system 70 drives the second vibration system.
  • the sound generated by 50 is transmitted to the second sound outlet 1031 through the first front sound cavity 100a and spreads out from the second sound outlet 1031, so that the speaker box 100 can realize sound in two directions, and the speaker box 100 has a loudspeaker.
  • the magnetic connecting part 80 is arranged between the first magnetic circuit system 60 and the second magnetic circuit system 70, the thickness of the magnetic field is not reduced when the speaker box 100 is miniaturized, and the speaker box 100 Still having good magnetic properties, the miniaturized speaker enclosure 100 has excellent acoustic properties.
  • the box body 10 includes an annular support table 104 , the annular support table 104 extends from the first panel 101 and is protruded in the accommodating cavity 100 a , and the annular support table 104 is spaced from the connecting portion 301 . Relative settings.
  • the second vibration system 50 and the second magnetic circuit system 70 are arranged between the annular support table 104 and the connecting portion 301, and the second diaphragm 501 is enclosed with the annular support table 104 and the first panel 101 to form the first front acoustic cavity 100b;
  • the support table 104 is provided with an opening 1041, and the opening 1041 is used for connecting the first front acoustic cavity 100b and the second sound outlet hole 1031, so that the sound generated by the second diaphragm 501 can be transmitted from the first front acoustic cavity 100b to the second sound outlet
  • the hole 1031 is transmitted to the outside through the second sound outlet hole 1031 .
  • the box body 10 further includes a sound guide channel 105 , and the sound guide channel 105 extends from the part of the annular support table 104 with the opening 1041 to the surrounding area.
  • the plate 103 is provided with a second sound outlet hole 1031, and the sound guide channel 105 is provided with a communication hole 1051, the communication hole 1051 penetrates the sound guide channel 105 for communicating the opening 1041 and the first sound outlet hole 1021, so that the second The sound generated by the diaphragm 501 propagates from the first front sound cavity 100b to the second sound outlet hole 1031 through the communication hole 1051, and finally propagates to the outside world.
  • the annular support table 104 includes an annular support portion 1042 and a limiting portion 1043 , wherein the annular support portion 1042 is protruded on the first panel 101 , and the limiting portion 1043 faces from the end surface of the annular support portion 1042 away from the first panel 101 .
  • the connecting portion 301 extends and protrudes.
  • the limiting portion 1043 is protruded from the end portion of the annular support portion 1042 close to the outer wall of the annular support portion 1042, so as to limit the position of the second diaphragm 501 and the basin frame 20, and the second diaphragm 501 is clamped and fixed on the On the annular support portion 1042, one end of the pot frame 20 abuts on the back of the contact surface between the second diaphragm 501 and the annular support portion 1042, so as to realize the fixation of the second diaphragm 501 by the pot frame 20 and the annular support portion 1042.
  • the limiting portion 1043 abuts on the end of the second diaphragm 501, and at the same time the limiting portion 1043 also abuts on the outer wall of the basin frame 20 close to the second diaphragm 501, the limiting portion 1043 can effectively limit the second vibration.
  • the movement of the diaphragm 501 in the non-vibration direction, and the limiting portion 1043 can also effectively limit the basin frame 20, so as to improve the firmness of the installation of the second diaphragm 501 and the basin frame 20, thereby improving the firmness of the entire speaker box 100. sex.
  • the annular support table 104 , the sound guiding channel 105 and the first panel 101 are integrally formed.
  • the annular support table 104 and the sound guiding channel 105 can be fixed and formed with the first panel 101 by welding respectively, and between the annular supporting table 104 and the sound guiding channel 105, the sound guiding channel 105 and the The enclosure plates 103 may also be fixed and formed by welding, but are not limited to these two methods.
  • the embedded portion 302 of the magnetic bowl 30 includes a first transverse plate 3024 and an annular longitudinal plate 3025, wherein the first transverse plate 3024 and the first sound outlet 1021 are disposed opposite to each other at intervals.
  • the annular longitudinal plate 3025 extends from the edge of the first transverse plate 3024 toward the first diaphragm 401 , and the concave cavity 3021 is formed by the first transverse plate 3024 and the annular longitudinal plate 3025 .
  • the connecting portion 301 of the magnetic bowl 30 is a second transverse plate, which extends from the end of the annular longitudinal plate 3025 away from the first transverse plate 3024 toward the direction away from the cavity 3022 .
  • the second transverse plate is connected to the basin.
  • the other end of the frame 20 is connected.
  • the end of the second transverse plate away from the cavity 3021 is connected to the inner side wall of the first sound outlet hole 1021 , and the first diaphragm 401 is clamped on the surface of the second transverse plate facing the first sound outlet hole 1021 superior.
  • a first accommodating space (not shown in the figure) for installing the first magnetic circuit system 60 is enclosed by the first diaphragm 401 and the cavity 3021 , and the second diaphragm 501 and the basin frame 20 are formed by the first accommodating space (not shown in the figure).
  • the basin frame 20 is provided with a groove 202.
  • the groove 202 is used to communicate the accommodating cavity 100a and the hollow inner hole 201.
  • the design of the groove 202 is beneficial to the interior of the accommodating cavity 100a and the hollow inner hole.
  • the air in the 201 (ie the second accommodating space) is circulated, so as to adjust the air pressure in the accommodating cavity 100a and the air pressure in the hollow inner hole 201 and accelerate the heat dissipation speed of the sound generating unit 200, thereby improving the acoustic performance of the speaker box 100.
  • a second through hole 3026 is formed on the first transverse plate 3024 or the annular longitudinal plate 3025, or a second through hole 3026 is formed in the part where the first transverse plate 3024 and the annular longitudinal plate 3025 are connected to each other.
  • 3026 is used to communicate the hollow inner hole 201 and the cavity 3021.
  • the design of the second through hole 3026 is conducive to the circulation of the air in the cavity 3021 (ie the first accommodation space) and the air in the hollow inner hole 201, so as to facilitate the adjustment of the cavity.
  • the air pressure in the cavity 3021 and the air pressure in the hollow inner hole 201 are also favorable for the air in the cavity 3021 (ie, the first accommodating space) to circulate with the air in the accommodating cavity 100a.
  • the groove 202 and the second through hole 3026 are designed so that the accommodating cavity 100a of the box 10, the hollow inner hole 201 and the cavity 3021 of the magnetic bowl 30 communicate with each other, which is beneficial to the accommodating cavity 100a, the first accommodating space, the The gas communication between the two accommodating spaces adjusts the air pressure of the accommodating cavity 100 a , the first accommodating space and the second accommodating space, thereby improving the acoustic performance of the speaker box 100 .
  • the basin frame 20 includes a hollow frame body 203, two first extension arms 204, and two second extension arms 205, wherein the two first extension arms 204 extend from the hollow frame body 203 toward the second transverse plate and It is connected with the second transverse plate, and the two first extension arms 204 are disposed opposite to each other, and the two second extension arms 205 extend from the hollow frame 203 toward the second transverse plate and are connected with the second transverse plate, and the two The two extending arms 205 are arranged opposite to each other, and the adjacent first extending arms 204 and the second extending arms 205 are enclosed to form the groove 202 .
  • the first transverse plate 3024 and/or the annular longitudinal plate 3025 are provided with four a second through hole 3026 .
  • the four grooves 202 thus formed connect the accommodating cavity 100a with the hollow inner hole 201, and the four second through holes 3026 connect the hollow inner hole 201 with the concave cavity 3021, which is more conducive to the rapid adjustment of the air pressure, so that it can be The acoustic performance of the speaker enclosure 100 is further improved.
  • first extension arms 204 and two second extension arms 205 it is not limited to two first extension arms 204 and two second extension arms 205, and other numbers are also possible, and the number of grooves 202 is not limited to one or four, but also two number, three or others, correspondingly, the number of the second through holes 3026 is not limited to one or four, and may also be two, three or others.
  • the first magnetic circuit system 60 includes a first main magnetic steel 602 , a first secondary magnetic steel 603 , a first main pole core 604 , and a first auxiliary pole core 605 ; the first main magnetic The steel 602 is stacked on the surface of the connecting magnetic part 80 facing the cavity 3021; the first auxiliary magnetic steel 603 is stacked on the surface of the first transverse plate 3024 located in the cavity 3021, and the first auxiliary magnetic steel 603 is spaced between the first and second magnetic steels 603.
  • the outer circumference of the main magnetic steel 602 is surrounded by the first main magnetic steel 602 to form a first magnetic gap 601; the first main pole core 604 is stacked on the surface of the first main magnetic steel 602 facing the first diaphragm 401; The secondary pole core 605 is stacked on the surface of the first secondary magnetic steel 603 facing the first diaphragm 401 .
  • the first secondary magnetic steel 603 is stacked on the first transverse plate 3024 avoiding the second through hole 3026; 6051 to facilitate gas circulation.
  • the first secondary magnets 603 include four, wherein two of the first secondary magnets 603 are respectively arranged at an opposite end of the first main magnet 602, and the other two first secondary magnets 603 are respectively arranged at The other opposite end of the first main magnetic steel 602 and the four first auxiliary magnetic steels 603 are stacked on the part of the first transverse plate 3024 avoiding the second through hole 3026 to facilitate gas circulation.
  • the number of the first auxiliary magnets 603 is not limited to four, and may also be other numbers, or the first auxiliary magnetic steel 603 has a hollow annular structure, when the first auxiliary magnetic steel 603 has In the case of the hollow annular structure, an air guide hole communicated with the second through hole 3026 is provided on it.
  • the first main magnetic steel 602 and the connecting magnetic part 80 are integrally formed.
  • the first main magnetic steel 602 and the magnetic connecting portion 80 are not limited to being integrally formed, and may also be connected together by welding, or may also be connected in other ways.
  • the first main magnetic steel 602 and the connecting magnetic part 80 are both made of magnetic materials, such as permanent magnets and the like.
  • the first magnetic circuit system 60 and the first vibration system 40 form a sound system
  • the first magnetic circuit system 60 drives the first vibration system 40 to generate sound
  • the generated sound is transmitted through the first sound outlet 1021 . Since the first magnetic circuit system 60 is disposed in the cavity 3021 , the space occupied by the first magnetic circuit system 60 in the speaker box 100 can be reduced, and the structural compactness of the speaker box 100 can be improved.
  • the second magnetic circuit system 70 includes a second main magnetic steel 702 , a second auxiliary magnetic steel 703 , a second main pole core 704 , and a second auxiliary pole core 705 ;
  • the two main magnets 702 are stacked on the surface of the connecting magnetic portion 80 that faces away from the cavity 3021 , and the second secondary magnets 703 are stacked on the connecting portion 301 (ie, the surface of the second transverse plate facing the second diaphragm 501 ) and connected to the second
  • the two main magnetic steels 702 are enclosed to form a second magnetic gap 701 ;
  • the second main pole core 704 is stacked on the surface of the second main magnetic steel 702 facing the second diaphragm 501 ;
  • the second auxiliary pole core 705 is stacked on the second auxiliary pole core 705
  • the magnetic steel 703 faces the surface of the second diaphragm 501 .
  • the second main magnetic steel 702 is provided with a first escape opening 7021, the second main magnetic steel 702 is stacked on the surface of the magnetic connecting portion 80 away from the cavity 3021, and is extended and stacked on the first transverse plate 3024 to avoid the The position of the two through holes 3026, and the first escape port 7021 and the second through hole 3026 communicate with each other to facilitate gas circulation;
  • the second main pole core 704 is provided with a second escape port 7041, the second escape port 7041 and the first escape port 7041 The openings 7021 are connected to facilitate gas circulation.
  • the second main pole core 704 is stacked on the surface of the second main magnetic steel 702 facing the second diaphragm 501, and avoids the first escape opening 7021, so that the second through hole 3026, the first An escape port 7021 and a second escape port 7041 communicate with each other to facilitate gas circulation.
  • the second secondary magnetic steel 703 includes four, wherein two second secondary magnetic steels 703 are respectively disposed at opposite ends of the second main magnetic steel 702 and connected to the connecting portion 301 (ie, the second transverse plate), The other two second secondary magnetic steels 703 are respectively disposed on the other opposite ends of the second main magnetic steel 702 and connected to the connecting portion 301 (ie, the second transverse plate).
  • the number of the second secondary magnetic steels 703 is not limited to four, and can also be other numbers, or the second secondary magnetic steel 703 has a hollow annular structure, when the second secondary magnetic steel 703 has In the case of the hollow annular structure, there are air guide holes connected with the second through holes 3026 to facilitate the flow of gas.
  • the second secondary pole core 705 is a piece, which has a hollow structure, is sleeved on the outer circumference of the second voice coil 502 and has a gap with the second voice coil 502. Meanwhile, the second secondary pole core 705 and the second secondary magnetic Steel 703 connections.
  • the second main magnetic steel 702 and the connecting magnetic part 80 are integrally formed.
  • the second main magnetic steel 702 and the magnetic connecting portion 80 are not limited to being integrally formed, and may also be connected together by welding, or may also be connected in other ways.
  • the second main magnetic steel 702 and the connecting magnetic part 80 are both made of magnetic materials, such as permanent magnets and the like.
  • the second magnetic circuit system 70 and the second vibration system 50 constitute another sound generation system.
  • the second magnetic circuit system 70 drives the second vibration system 50 to generate sound, and the generated sound is transmitted through the first sound outlet 1021 go out.
  • the second magnetic circuit system 70 is arranged outside the cavity 3021 and between the inner wall of the hollow inner hole 201 of the basin frame 20 , especially the second secondary magnetic steel 703 is arranged at the connecting portion 301 (and the second transverse plate faces the second diaphragm 501 ) surface), the space occupied by the second magnetic circuit system 70 in the speaker cabinet 100 can also be reduced, and the structural compactness of the speaker cabinet 100 can be improved.
  • the first main magnetic steel 602 , the connecting magnetic portion 80 and the second main magnetic steel 702 are integrally formed.
  • the first vibration system 40 further includes a first dome 403 .
  • the first dome 403 is stacked on the surface of the first diaphragm 401 facing the first magnetic circuit system 60 and is connected to the first voice coil.
  • the other end of 402 is connected, and the setting of the first spherical top 403 is beneficial to improve the acoustic performance of the first vibration system 40 .
  • the second vibration system 50 further includes a second spherical top 503.
  • the second spherical top 503 is stacked on the surface of the second diaphragm 501 facing the second magnetic circuit system 70, and is connected to the other end of the second voice coil 502.
  • the arrangement of the dome 503 is beneficial to improve the acoustic performance of the second vibration system 50 .
  • the mobile terminal 900 includes a terminal panel 901 and a speaker box 100 mounted on the terminal panel 901 .
  • the speaker box 100 is the above-mentioned speaker box 100
  • the second panel 102 on the speaker box 100 is attached and installed on the terminal panel 901
  • the terminal panel 901 is provided with a third sound outlet 901a
  • the third sound outlet 901a is connected to the terminal panel 901.
  • the first sound outlet hole 1021 is passed through.
  • the second diaphragm 501, the second panel 102 and the terminal panel 901 in the speaker box 100 are enclosed to form a second front acoustic cavity 100c.
  • the mobile terminal 900 further includes a sealing member 902 for sealing the terminal panel 901 and the second panel 102.
  • the sealing member 902 may be an annular sealing member, which is stacked on the terminal panel 901 and the second panel. 102 and surrounding the outer circumference of the first sound outlet 1021 .
  • the sealing member 902 is foam cotton.
  • the sealing member 902 is not limited to the foam cotton, and can also be other parts with sealing effect.
  • the speaker box 100 is the above-mentioned speaker box 100 , that is, the second panel 102 of the box body 10 of the speaker box 100 is provided with a first sound outlet 1021 through it.
  • the sound hole 1021 is used for receiving calls, and the enclosure plate 103 is provided with a second sound hole 1031, which is used for speaker, so that the mobile terminal 900 has the functions of speaking and receiving.
  • the first vibration system 40 and the first magnetic circuit system 60 of the speaker box 100 are arranged in the cavity 3021 of the magnetic bowl 30 having the cavity 3021 structure, while the second vibration system 50 and the second magnetic circuit system 70 are arranged in the magnetic cavity 3021 .
  • the sound generation system composed of the first vibration system 40 and the first magnetic circuit system 60 and the sound generation system composed of the second vibration system 50 and the second magnetic circuit system 70 are nested, which improves the speaker box.
  • 100 is compact in structure, the speaker box 100 occupies a relatively small space in the mobile terminal 900, so that the mobile terminal 900 can be miniaturized.
  • the second main magnets 702 are connected by the magnetic connecting part 80, so that the speaker box 100 has good magnetic performance, and finally shows good acoustic performance, and also enables the mobile terminal 900 to have good acoustic performance while being miniaturized .

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

The present application provides a speaker box and a mobile terminal. The speaker box comprises a box body and a sound-producing unit. The box body comprises a first panel, a second panel having a second sound outlet hole, and a surrounding plate having a first sound outlet hole. The sound-producing unit comprises a first magnetic circuit system, a second magnetic circuit system, a magnetic connecting portion, a first vibration system having a first diaphragm, a second vibration system having a second diaphragm, a basket having a hollow inner hole, and a magnetic bowl having a connecting portion and an embedding portion. The embedding portion has a cavity, the cavity has a cavity opening facing the second sound outlet hole, and the bottom of the cavity is provided with a first through hole. The first magnetic circuit system is disposed in the cavity, the second magnetic circuit system is disposed between the outer wall of the embedding portion and the inner side wall of the hollow inner hole, the magnetic connecting portion passes through the first through hole and connects the first magnetic circuit system to the second magnetic circuit system, and the second diaphragm and the box body enclose a first front sound cavity in communication with the second sound outlet hole. The speaker box of the present application is compact in structure, has loudspeaker and receiver functions, and has good magnetic performance and acoustic performance.

Description

扬声器箱及移动终端Speaker box and mobile terminal 技术领域technical field
本申请涉及电声学技术领域，尤其涉及一种扬声器箱及移动终端。The present application relates to the technical field of electro-acoustics, and in particular, to a speaker box and a mobile terminal.
背景技术Background technique
在移动互联网时代，智能手机已经成为最常见、最便捷的移动终端设备。目前智能手机的功能多种多样，其中之一便是提供高品质的音乐功能，因此用于播放声音的扬声器箱被广泛应用于智能移动设备中。In the era of mobile Internet, smartphones have become the most common and convenient mobile terminal devices. At present, smartphones have various functions, one of which is to provide high-quality music functions, so speaker boxes for playing sound are widely used in smart mobile devices.
现有的扬声器箱一般具有扬声功能，但是并不同时具有扬声和受话的功能，同时，现有的扬声器箱结构不够紧凑，难以实现更加轻型、小型化，或者在实现小型化时会导致磁性能变差以致声学性能下降，最终难以满足智能移动设备小型化发展趋势的技术需求。The existing speaker box generally has the function of speaker, but it does not have the function of speaker and receiver at the same time. At the same time, the structure of the existing speaker box is not compact enough, and it is difficult to achieve a lighter and smaller size, or it will be difficult to realize the miniaturization. As a result, the magnetic performance is deteriorated and the acoustic performance is degraded, and ultimately it is difficult to meet the technical requirements of the miniaturization development trend of smart mobile devices.
因此，有必要提供一种新的扬声器箱以解决上述的技术问题。Therefore, it is necessary to provide a new speaker box to solve the above-mentioned technical problems.
技术问题technical problem
本申请的目的之一在于提供一种扬声器箱，该扬声器箱具有扬声和受话的功能，且在实现扬声和受话功能的同时具有嵌套式结构，使得扬声器箱在结构紧凑的前提下还能保证磁性能和声学性能，可以很好地满足移动终端小型化发展的需求。One of the objectives of the present application is to provide a speaker box, which has the functions of speaking and receiving, and has a nested structure while realizing the functions of speaking and receiving, so that the speaker box has a compact structure on the premise It can also ensure magnetic performance and acoustic performance, which can well meet the needs of the development of miniaturization of mobile terminals.
技术解决方案technical solutions
本申请的目的之一提供的技术方案如下：一种扬声器箱，包括具有容纳腔的箱体以及设置于所述容纳腔中的发声单体，所述箱体包括第一面板、与所述第一面板相对设置的第二面板和连接于所述第一面板与所述第二面板之间的围板；所述第二面板上贯穿设有第一出声孔，所述围板上贯穿设有第二出声孔；The technical solution provided by one of the objectives of the present application is as follows: a speaker box, comprising a box body with an accommodating cavity and a sound generating unit arranged in the accommodating cavity, the box body comprising a first panel, a A second panel opposite to the panel and an enclosure connected between the first panel and the second panel; the second panel is provided with a first sound outlet, and the enclosure is provided There is a second sound hole;
所述发声单体包括盆架、磁碗、第一振动系统、第二振动系统、用于驱动所述第一振动系统发声的第一磁路系统、用于驱动所述第二振动系统发声的第二磁路系统和连接于所述第一磁路系统与所述第二磁路系统的连磁部；The sound generating unit includes a basin frame, a magnetic bowl, a first vibration system, a second vibration system, a first magnetic circuit system for driving the first vibration system to sound, and a first magnetic circuit system for driving the second vibration system to sound. a second magnetic circuit system and a magnetic connection part connected to the first magnetic circuit system and the second magnetic circuit system;
所述盆架与所述箱体连接，所述盆架具有中空内孔；the basin frame is connected to the box body, and the basin frame has a hollow inner hole;
所述磁碗包括与所述盆架一端连接的连接部和从所述连接部延伸穿设于所述中空内孔内的内嵌部；The magnetic bowl includes a connecting portion connected with one end of the basin frame and an embedded portion extending from the connecting portion and passing through the hollow inner hole;
所述内嵌部具有凹腔，所述凹腔具有朝向所述第一出声孔的腔口，所述凹腔底部贯穿设有第一通孔；The embedded part has a cavity, the cavity has a cavity opening facing the first sound outlet hole, and a first through hole is formed through the bottom of the cavity;
所述第一磁路系统设于所述凹腔内，所述第二磁路系统设于所述内嵌部的外壁和所述中空内孔的内侧壁之间，所述连磁部穿设于所述第一通孔内且两端分别连接所述第一磁路系统与所述第二磁路系统，所述第一磁路系统具有位于所述凹腔内的第一磁间隙，所述第二磁路系统具有位于所述凹腔外且位于所述中空内孔内的第二磁间隙；The first magnetic circuit system is arranged in the cavity, the second magnetic circuit system is arranged between the outer wall of the embedded part and the inner side wall of the hollow inner hole, and the magnetic connection part is penetrated The first through hole is connected to the first magnetic circuit system and the second magnetic circuit system at both ends, the first magnetic circuit system has a first magnetic gap located in the cavity, so the second magnetic circuit system has a second magnetic gap outside the cavity and inside the hollow inner hole;
所述第一振动系统包括与所述磁碗连接的第一振膜和一端插设于所述第一磁间隙内且用于驱动所述第一振膜发声的第一音圈；The first vibration system includes a first diaphragm connected to the magnetic bowl and a first voice coil, one end of which is inserted in the first magnetic gap and used to drive the first diaphragm to emit sound;
所述第二振动系统包括与所述盆架另一端连接的第二振膜和一端插设于所述第二磁间隙内且用于驱动所述第二振膜发声的第二音圈，所述第二振膜与所述箱体围合形成与所述第二出声孔连通的第一前声腔。The second vibration system includes a second diaphragm connected to the other end of the basin frame and a second voice coil, one end of which is inserted in the second magnetic gap and used to drive the second diaphragm to emit sound, so The second diaphragm and the box are enclosed to form a first front acoustic cavity communicating with the second sound outlet.
优选地，所述内嵌部包括与所述第一出声孔间隔相对设置的第一横向板和从所述第一横向板边缘朝向所述第一振膜延伸的环状纵向板，所述第一横向板上贯穿设有所述第一通孔，所述第一横向板和所述环状纵向板围合形成所述凹腔；Preferably, the embedded portion includes a first transverse plate disposed opposite to the first sound outlet hole and an annular longitudinal plate extending from the edge of the first transverse plate toward the first diaphragm, the The first through hole is provided through the first transverse plate, and the first transverse plate and the annular longitudinal plate are enclosed to form the concave cavity;
所述连接部为第二横向板，所述第二横向板从所述环状纵向板之远离所述第一横向板的端部朝远离所述腔口的方向延伸。The connecting portion is a second transverse plate extending from an end of the annular longitudinal plate away from the first transverse plate in a direction away from the cavity opening.
优选地，所述第一磁路系统包括第一主磁钢、第一副磁钢、第一主极芯、第一副极芯；Preferably, the first magnetic circuit system includes a first main magnetic steel, a first auxiliary magnetic steel, a first main pole core, and a first auxiliary pole core;
所述第二磁路系统包括第二主磁钢、第二副磁钢、第二主极芯、第二副极芯；The second magnetic circuit system includes a second main magnetic steel, a second auxiliary magnetic steel, a second main pole core, and a second auxiliary pole core;
所述第一主磁钢和所述第二主磁钢分别叠设于所述连磁部的相对两侧，且所述第一主磁钢、所述连磁部及所述第二主磁钢一体成型；The first main magnetic steel and the second main magnetic steel are respectively stacked on opposite sides of the magnetic connection part, and the first main magnetic steel, the magnetic connection part and the second main magnetic steel Steel integral molding;
所述第一副磁钢叠设于所述第一横向板之位于所述凹腔内的表面，且所述第一副磁钢间隔设于所述第一主磁钢的外周并与所述第一主磁钢围合形成所述第一磁间隙；The first auxiliary magnetic steel is stacked on the surface of the first transverse plate located in the cavity, and the first auxiliary magnetic steel is spaced on the outer circumference of the first main magnetic steel and is connected to the the first main magnetic steel is enclosed to form the first magnetic gap;
所述第一主极芯叠设于所述第一主磁钢之朝向所述第一振膜的表面；the first main pole core is stacked on the surface of the first main magnet steel facing the first diaphragm;
所述第一副极芯叠设于所述第一副磁钢之朝向所述第一振膜的表面；The first secondary pole core is stacked on the surface of the first secondary magnetic steel facing the first diaphragm;
所述第二副磁钢叠设于所述第二横向板之朝向所述第二振膜的表面并与所述第二主磁钢围合形成所述第二磁间隙；The second secondary magnetic steel is stacked on the surface of the second transverse plate facing the second diaphragm, and is enclosed with the second main magnetic steel to form the second magnetic gap;
所述第二主极芯叠设于所述第二主磁钢之朝向所述第二振膜的表面；The second main pole core is stacked on the surface of the second main magnet steel facing the second diaphragm;
所述第二副极芯叠设于所述第二副磁钢之朝向所述第二振膜的表面。The second secondary pole core is stacked on the surface of the second secondary magnetic steel facing the second diaphragm.
优选地，所述盆架开设有用于将所述容纳腔和所述中空内孔连通的凹槽；所述第一横向板和/或所述环状纵向板上开设有将所述中空内孔与所述凹腔连通的第二通孔。Preferably, the basin frame is provided with a groove for connecting the accommodating cavity and the hollow inner hole; the first transverse plate and/or the annular longitudinal plate is provided with a hollow inner hole. a second through hole communicating with the cavity.
优选地，所述盆架包括中空框体、两个第一延伸臂和两个第二延伸臂；Preferably, the basin frame includes a hollow frame, two first extension arms and two second extension arms;
两个所述第一延伸臂和两个所述第二延伸臂都从所述中空框体朝向所述第二横向板延伸并与所述第二横向板连接，且两个所述第一延伸臂相对设置，两个所述第二延伸臂相对设置，相邻的所述第一延伸臂和所述第二延伸臂围合形成所述凹槽；The two first extension arms and the two second extension arms both extend from the hollow frame body toward the second transverse plate and are connected with the second transverse plate, and the two first extension arms The arms are arranged oppositely, the two second extension arms are arranged oppositely, and the adjacent first extension arms and the second extension arms enclose the groove;
所述第一横向板和/或所述环状纵向板上开设有四个所述第二通孔；和/或，The first transverse plate and/or the annular longitudinal plate are provided with four second through holes; and/or,
所述第一副极芯上开设有与所述第二通孔连通的缺口；所述第二主磁钢设有与所述第二通孔连通的第一避让口；所述第二主极芯上设有与所述第一避让口连通的第二避让口。The first secondary pole core is provided with a gap that communicates with the second through hole; the second main magnetic steel is provided with a first escape port communicated with the second through hole; the second main pole The core is provided with a second escape port communicating with the first escape port.
优选地，所述箱体还包括从所述第一面板延伸凸设于所述容纳腔内的环形支撑台，所述连接部与所述环形支撑台间隔相对设置，所述第二振动系统和所述第二磁路系统设于所述环形支撑台与所述连接部之间，所述第二振膜与所述环形支撑台、所述第一面板围合形成所述第一前声腔；所述环形支撑台设有用于连通所述第一前声腔与所述第二出声孔的开口。Preferably, the box body further includes an annular support platform extending from the first panel and protruding into the accommodating cavity, the connecting portion and the annular support platform are arranged opposite to each other at intervals, and the second vibration system and The second magnetic circuit system is arranged between the annular support platform and the connecting portion, and the second diaphragm, the annular support platform and the first panel are enclosed to form the first front acoustic cavity; The annular support platform is provided with an opening for communicating the first front acoustic cavity and the second acoustic outlet.
优选地，所述环形支撑台的外侧与所述围板的内侧之间具有间距，所述箱体还包括导声音通道，所述导声音通道从所述环形支撑台之设有所述开口的部位延伸至所述围板之设有所述第二出声孔的部位，且所述导声音通道贯穿设有连通所述开口与所述第二出声孔的连通孔。Preferably, there is a distance between the outer side of the annular support platform and the inner side of the enclosure plate, and the box body 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 second sound outlet hole is arranged, and the sound guide channel is provided with a communication hole connecting the opening and the second sound outlet hole through.
优选地，所述环形支撑台包括凸设于所述第一面板上的环形支撑部和从所述环形支撑部朝向所述连接部延伸凸设的限位部，所述第二振膜卡接于所述环形支撑部上，且所述盆架连接在所述第二振膜背对所述环形支撑部的表面；所述限位部抵接所述第二振膜的端部并抵接所述盆架靠近所述第二振膜的外壁。Preferably, the annular support table includes an annular support portion protruding from the first panel and a limiting portion extending from the annular support portion toward the connecting portion, and the second diaphragm is clamped. on the annular support portion, and the basin frame is connected to the surface of the second diaphragm facing away from the annular support portion; the limiting portion abuts the end of the second diaphragm and abuts The basin frame is close to the outer wall of the second diaphragm.
本申请的目的之二在于提供一种移动终端，包括扬声器箱和终端面板，所述扬声器箱为上述所述的扬声器箱，所述第二面板贴合于所述终端面板上，所述终端面板设有第三出声孔，所述第三出声孔与所述第一出声孔贯通。The second purpose of the present application is to provide a mobile terminal, including a speaker box and a terminal panel, the speaker box is the above-mentioned speaker box, the second panel is attached to the terminal panel, and the terminal panel A third sound outlet is provided, and the third sound outlet communicates with the first sound outlet.
优选地，所述终端面板与所述第二面板之间还设有用于将所述终端面板与所述第二面板进行密封的密封件。Preferably, a sealing member for sealing the terminal panel and the second panel is further provided between the terminal panel and the second panel.
有益效果beneficial effect
本申请的有益效果在于：本申请提供的扬声器箱，通过在箱体的第二面板设置第一出声孔、围板设置第二出声孔，同时箱体内分别设置有与第一出声孔配合的第一振动系统和驱动所述第一振动系统发声的第一磁路系统、与第二出声孔配合的第二振动系统和驱动所述第二振动系统发声的第二磁路系统，使得扬声器箱可以在两个方向实现出声，并具有扬声和受话的功能；与此同时，第一振动系统、第一磁路系统设置在具有凹腔结构的磁碗之凹腔内，而第二振动系统、第二磁路系统则设置在磁碗之凹腔外，两部分发声系统系统实现嵌套，提高了扬声器箱的结构紧凑性，进而扬声器箱实现小型化；此外，通过穿设于第一通孔中的连磁部将第一磁路系统和所述第二磁路系统连通，这使得在扬声器箱小型化时，磁钢的厚度不减小，保证扬声器箱的磁性能，进而具有优异的声学性能。The beneficial effect of the present application is that: in the speaker box provided by the present application, a first sound outlet hole is arranged on the second panel of the box body, a second sound outlet hole is arranged on the enclosure plate, and at the same time, the box body is respectively provided with a first sound outlet hole and a second sound outlet hole. A matched first vibration system and a first magnetic circuit system that drives the first vibration system to sound, a second vibration system that cooperates with the second sound outlet, and a second magnetic circuit system that drives the second vibration system to sound, So that the speaker box can realize sound in two directions, and has the function of speaker and reception; at the same time, the first vibration system and the first magnetic circuit system are arranged in the cavity of the magnetic bowl with the cavity structure, The second vibration system and the second magnetic circuit system are arranged outside the cavity of the magnetic bowl, and the two parts of the sound system are nested, which improves the structural compactness of the speaker box, and the speaker box is miniaturized. The magnetic connection part arranged in the first through hole connects the first magnetic circuit system and the second magnetic circuit system, which makes the thickness of the magnetic steel not decrease when the speaker box is miniaturized, and ensures the magnetic performance of the speaker box , which in turn has excellent acoustic performance.
本申请提供的移动终端由于包括上述的扬声器箱，因此具有扬声和受话的功能，同时具有优异的声学性能，此外，因上述的扬声器箱具有嵌套结构，其占据移动终端的空间比较小，使得移动终端能够小型化。Since the mobile terminal provided by the present application includes the above-mentioned speaker box, it has the functions of speaking and receiving, and at the same time has excellent acoustic performance. In addition, because the above-mentioned speaker box has a nested structure, it occupies a relatively small space in the mobile terminal. , so that the mobile terminal can be miniaturized.
附图说明Description of drawings
图1为本申请实施例提供的扬声器箱的立体结构示意图；1 is a schematic three-dimensional structure diagram of a speaker box provided by an embodiment of the present application;
图2为图1中A-A的剖视示意图；Fig. 2 is the sectional schematic diagram of A-A in Fig. 1;
图3为图1中B-B的剖视示意图；Fig. 3 is the sectional schematic diagram of B-B in Fig. 1;
图4为图1的爆炸示意图；Fig. 4 is the exploded schematic diagram of Fig. 1;
图5为图1的扬声器箱拆除箱体后的发声单体之立体结构示意图；FIG. 5 is a schematic three-dimensional structure diagram of the sound-generating unit after the speaker box of FIG. 1 is removed;
图6为图5中C-C的剖视示意图；Fig. 6 is the schematic sectional view of C-C in Fig. 5;
图7为箱体拆除第二面板后的立体结构示意图；FIG. 7 is a schematic three-dimensional structure diagram of the box body after the second panel is removed;
图8为磁碗的立体结构示意图；Fig. 8 is the three-dimensional structure schematic diagram of magnetic bowl;
图9为盆架的立体结构示意图；Fig. 9 is the three-dimensional structure schematic diagram of basin frame;
图10为一体成型的第一主磁钢、连磁部和第二主磁钢之立体结构示意图；Fig. 10 is a three-dimensional schematic diagram of the first main magnet, the connecting magnetic part and the second main magnet which are integrally formed;
图11为第二主极芯的立体结构示意图；11 is a schematic three-dimensional structure diagram of the second main pole core;
图12为移动终端立体示意图；12 is a schematic perspective view of a mobile terminal;
图13为图12中D-D剖视示意图；Fig. 13 is a D-D cross-sectional schematic diagram in Fig. 12;
附图标号说明：Description of reference numbers:
100、扬声器箱；100a、容纳腔；100b、第一前声腔；100c、第二前声腔；10、箱体；101、第一面板；102、第二面板；1021、第一出声孔；103、围板；1031、第二出声孔；104、环形支撑台；1041、开口；1042、环形支撑部；1043、限位部；105、导声音通道；1051、连通孔；200、发声单体；20、盆架；201、中空内孔；202、凹槽；203、中空框体；204、第一延伸臂；205、第二延伸臂；30、磁碗；301、连接部；302、内嵌部；3021、凹腔；3022、腔口；3023、第一通孔；3024、第一横向板；3025、环状纵向板；3026、第二通孔；40、第一振动系统；401、第一振膜；402、第一音圈；403、第一球顶；50、第二振动系统；501、第二振膜；502、第二音圈；503、第二球顶；60、第一磁路系统；601、第一磁间隙；602、第一主磁钢；603、第一副磁钢；604、第一主极芯；605、第一副极芯； 6051、缺口；70、第二磁路系统；701、第二磁间隙；702、第二主磁钢；7021、第一避让口；703、第二副磁钢；704、第二主极芯；7041、第二避让口；705、第二副极芯；80、连磁部；900、移动终端；901、终端面板；901a、第三出声孔；902、密封件。100, speaker box; 100a, accommodating cavity; 100b, first front sound cavity; 100c, second front sound cavity; 10, box body; 101, first panel; 102, second panel; 1021, first sound outlet; 103 , enclosure; 1031, the second sound outlet; 104, the annular support platform; 1041, the opening; 1042, the annular support part; 1043, the limit part; 105, the sound guide channel; 20, basin frame; 201, hollow inner hole; 202, groove; 203, hollow frame body; 204, first extension arm; 205, second extension arm; 30, magnetic bowl; 301, connecting part; 302, inner 3021, cavity; 3022, cavity mouth; 3023, first through hole; 3024, first transverse plate; 3025, annular longitudinal plate; 3026, second through hole; 40, first vibration system; 401, The first diaphragm; 402, the first voice coil; 403, the first dome; 50, the second vibration system; 501, the second diaphragm; 502, the second voice coil; 503, the second dome; 60, the first A magnetic circuit system; 601, the first magnetic gap; 602, the first main magnet; 603, the first auxiliary magnet; 604, the first main pole core; 605, the first auxiliary pole core; 6051, the notch; 70, The second magnetic circuit system; 701, the second magnetic gap; 702, the second main magnet; 7021, the first escape port; 703, the second auxiliary magnet; 704, the second main pole core; 7041, the second escape port 705, the second secondary pole core; 80, the magnetic connection part; 900, the mobile terminal; 901, the terminal panel; 901a, the third sound outlet; 902, the seal.
本发明的实施方式Embodiments of the present invention
下面结合图1至图11对本申请作详细描述。The present application will be described in detail below with reference to FIGS. 1 to 11 .
请参阅图1~5，本申请实施例提供的扬声器箱100，包括箱体10、发声单体200，箱体10具有容纳腔100a，发声单体200设置于容纳腔100a中，其中，发声单体200包括盆架20、磁碗30、第一振动系统40、第二振动系统50、第一磁路系统60、第二磁路系统70和连磁部80。Referring to FIGS. 1 to 5 , the speaker box 100 provided in the embodiment of the present application includes a box body 10 and a sound-generating unit 200 . The box body 10 has a accommodating cavity 100 a , and the sound-generating unit 200 is arranged in the accommodating cavity 100 a . The body 200 includes a basin frame 20 , a magnetic bowl 30 , a first vibration system 40 , a second vibration system 50 , a first magnetic circuit system 60 , a second magnetic circuit system 70 and a magnetic connection part 80 .
具体地，箱体10包括第一面板101、第二面板102、围板103，其中，第一面板101和第二面板102相对设置，围板103连接第一面板101和第二面板102，由第一面板101、围板103及第二面板102围合形成容纳腔100a。第二面板102上贯穿设有第一出声孔1021，围板103上贯穿设有第二出声孔1031，由于围板103连接在第一面板101和第二面板102之间，因此第一出声孔1021和第二出声孔1031朝向两个不同的方向，便于扬声器箱100从不同的方向出声。Specifically, the box body 10 includes a first panel 101, a second panel 102, and an enclosure panel 103, wherein the first panel 101 and the second panel 102 are disposed opposite to each other, and the enclosure panel 103 connects the first panel 101 and the second panel 102. The first panel 101 , the enclosure panel 103 and the second panel 102 enclose a receiving cavity 100a. The second panel 102 is provided with a first sound outlet hole 1021, and the enclosure panel 103 is provided with a second sound outlet hole 1031. Since the enclosure panel 103 is connected between the first panel 101 and the second panel 102, the first The sound outlet 1021 and the second sound outlet 1031 face two different directions, so that the speaker box 100 can emit sound from different directions.
盆架20与箱体10连接，盆架20具有中空内孔201。The basin frame 20 is connected with the box body 10 , and the basin frame 20 has a hollow inner hole 201 .
磁碗30包括连接部301和内嵌部302，其中，连接部301与盆架20的一端连接，而内嵌部302则从连接部301延伸穿设于中空内孔201中。内嵌部302具有凹腔3021，该凹腔3021具有朝向第一出声孔1021的腔口3022，同时该凹腔3021底部贯穿设有第一通孔3023。The magnetic bowl 30 includes a connecting portion 301 and an embedded portion 302 , wherein the connecting portion 301 is connected to one end of the bowl frame 20 , and the embedded portion 302 extends from the connecting portion 301 and passes through the hollow inner hole 201 . The embedded portion 302 has a cavity 3021 , the cavity 3021 has a cavity 3022 facing the first sound outlet hole 1021 , and a first through hole 3023 is formed through the bottom of the cavity 3021 .
第一磁路系统60设于凹腔3021内，第一磁路系统60具有第一磁间隙601，第一磁路系统60用于驱动第一振动系统40发声。The first magnetic circuit system 60 is disposed in the cavity 3021, the first magnetic circuit system 60 has a first magnetic gap 601, and the first magnetic circuit system 60 is used for driving the first vibration system 40 to emit sound.
第一振动系统40包括第一振膜401和第一音圈402；其中，第一振膜401与磁碗30连接；第一音圈402一端插设于第一磁间隙601内，另一端与第一振膜401连接，第一音圈402通电后可以驱动第一振膜401发声。The first vibration system 40 includes a first diaphragm 401 and a first voice coil 402; wherein, the first diaphragm 401 is connected to the magnetic bowl 30; one end of the first voice coil 402 is inserted in the first magnetic gap 601, and the other end is connected to the magnetic bowl 30. The first diaphragm 401 is connected, and after the first voice coil 402 is powered on, the first diaphragm 401 can be driven to emit sound.
第二磁路系统70设于内嵌部302的外壁和中空内孔201的内侧壁之间，第二磁路系统70具有第二磁间隙701，该第二磁路系统70用于驱动第二振动系统50发声。The second magnetic circuit system 70 is disposed between the outer wall of the embedded portion 302 and the inner side wall of the hollow inner hole 201 . The second magnetic circuit system 70 has a second magnetic gap 701 , and the second magnetic circuit system 70 is used to drive the second magnetic circuit system 70 . The vibration system 50 emits sound.
第二振动系统50包括第二振膜501和第二音圈502；其中，第二振膜501与盆架20的另一端连接；第二音圈502的一端则插设于第二磁间隙701内，并且另一端与第二振膜501连接，第二音圈502通电后可以驱动第二振膜501发声。第二振膜501与箱体10围合形成第一前声腔100b，该第一前声腔100b与第二出声孔1031连通。The second vibration system 50 includes a second diaphragm 501 and a second voice coil 502; wherein, the second diaphragm 501 is connected to the other end of the basin frame 20; one end of the second voice coil 502 is inserted into the second magnetic gap 701 and the other end is connected to the second diaphragm 501. After the second voice coil 502 is powered on, the second diaphragm 501 can be driven to emit sound. The second diaphragm 501 is enclosed with the box body 10 to form a first front acoustic cavity 100b, and the first front acoustic cavity 100b is communicated with the second sound outlet hole 1031 .
连磁部80穿设在第一通孔3023内，其一端与第一磁路系统60连接，另一端与第二磁路系统70连接，通过连磁部80将第一磁路系统60和第二磁路系统70连通。The magnetic connection part 80 is penetrated in the first through hole 3023 , one end of the magnetic connection part 80 is connected to the first magnetic circuit system 60 , and the other end is connected to the second magnetic circuit system 70 . The two magnetic circuit systems 70 communicate with each other.
本申请实施例的扬声器箱100，一方面，通过在箱体10的第二面板102上设置第一出声孔1021而在围板103上设置第二出声孔1031，实现第一出声孔1021和第二出声孔1031朝向不同的方向，使得扬声器箱100实现在不同方向出声；另一方面，通过磁碗30将第一振动系统40、用于驱动第一振动系统40发声的第一磁路系统60安装于磁碗30的凹腔3021中，而将第二振动系统50、用于驱动第二振动系统50发声的第二磁路系统70安装在凹腔3021的外壁和盆架20的中空内孔201之内侧壁之间，使得第一振动系统40、第一磁路系统60与第二振动系统50、第二磁路系统70实现嵌套，提高了扬声器箱100的结构紧凑性，使得扬声器箱100可以实现小型化，且由于第一磁路系统60驱动第一振动系统40产生的声音从第一出声孔1021传播出去，而第二磁路系统70驱动第二振动系统50产生的声音经由第一前声腔100a传播至第二出声孔1031并从第二出声孔1031传播出去，使得扬声器箱100可以在两个方向上实现出声，同时扬声器箱100具有扬声和受话的功能；再一方面，由于连磁部80设置在第一磁路系统60和第二磁路系统70之间，使得扬声器箱100小型化时磁的厚度不减小，扬声器箱100仍然具有良好的磁性能，从而使得小型化的扬声器箱100具有优异的声学性能。In the speaker box 100 of the embodiment of the present application, on the one hand, the first sound outlet hole 1021 is arranged on the second panel 102 of the box body 10 and the second sound outlet hole 1031 is arranged on the enclosure plate 103 to realize the first sound outlet hole. 1021 and the second sound hole 1031 are oriented in different directions, so that the speaker box 100 can emit sound in different directions; A magnetic circuit system 60 is installed in the cavity 3021 of the magnetic bowl 30, and the second vibration system 50 and the second magnetic circuit system 70 for driving the second vibration system 50 to sound are installed on the outer wall of the cavity 3021 and the basin frame Between the inner side walls of the hollow inner hole 201 of the Therefore, the speaker box 100 can be miniaturized, and the sound generated by the first magnetic circuit system 60 driving the first vibration system 40 is transmitted from the first sound outlet 1021, while the second magnetic circuit system 70 drives the second vibration system. The sound generated by 50 is transmitted to the second sound outlet 1031 through the first front sound cavity 100a and spreads out from the second sound outlet 1031, so that the speaker box 100 can realize sound in two directions, and the speaker box 100 has a loudspeaker. On the other hand, since the magnetic connecting part 80 is arranged between the first magnetic circuit system 60 and the second magnetic circuit system 70, the thickness of the magnetic field is not reduced when the speaker box 100 is miniaturized, and the speaker box 100 Still having good magnetic properties, the miniaturized speaker enclosure 100 has excellent acoustic properties.
请参阅图1~图4、图7，箱体10内包括环形支撑台104，该环形支撑台104从第一面板101延伸且凸设于容纳腔100a内，环形支撑台104与连接部301间隔相对设置。第二振动系统50和第二磁路系统70设于环形支撑台104与连接部301之间，第二振膜501与环形支撑台104、第一面板101围合形成第一前声腔100b；环形支撑台104上设有开口1041，该开口1041用于连通第一前声腔100b和第二出声孔1031，使得第二振膜501产生的声音可以从第一前声腔100b传播至第二出声孔1031并由第二出声孔1031向外界传播。Please refer to FIG. 1 to FIG. 4 and FIG. 7 , the box body 10 includes an annular support table 104 , the annular support table 104 extends from the first panel 101 and is protruded in the accommodating cavity 100 a , and the annular support table 104 is spaced from the connecting portion 301 . Relative settings. The second vibration system 50 and the second magnetic circuit system 70 are arranged between the annular support table 104 and the connecting portion 301, and the second diaphragm 501 is enclosed with the annular support table 104 and the first panel 101 to form the first front acoustic cavity 100b; The support table 104 is provided with an opening 1041, and the opening 1041 is used for connecting the first front acoustic cavity 100b and the second sound outlet hole 1031, so that the sound generated by the second diaphragm 501 can be transmitted from the first front acoustic cavity 100b to the second sound outlet The hole 1031 is transmitted to the outside through the second sound outlet hole 1031 .
具体应用中，环形支撑台104的外侧与围板103的内侧之间具有间距，箱体10内还包括导声音通道105，导声音通道105从环形支撑台104设有开口1041的部位延伸至围板103设有第二出声孔1031的部位，并且导声音通道105设有连通孔1051，该连通孔1051贯穿导声音通道105以用于连通开口1041与第一出声孔1021，使得第二振膜501产生的声音自第一前声腔100b经由连通孔1051向第二出声孔1031传播，并最终传播至外界。In a specific application, there is a distance between the outer side of the annular support table 104 and the inner side of the enclosure plate 103 , and the box body 10 further includes a sound guide channel 105 , and the sound guide channel 105 extends from the part of the annular support table 104 with the opening 1041 to the surrounding area. The plate 103 is provided with a second sound outlet hole 1031, and the sound guide channel 105 is provided with a communication hole 1051, the communication hole 1051 penetrates the sound guide channel 105 for communicating the opening 1041 and the first sound outlet hole 1021, so that the second The sound generated by the diaphragm 501 propagates from the first front sound cavity 100b to the second sound outlet hole 1031 through the communication hole 1051, and finally propagates to the outside world.
优选地，环形支撑台104包括环形支撑部1042和限位部1043，其中，环形支撑部1042凸设于第一面板101上，限位部1043自环形支撑部1042远离第一面板101的端面朝向连接部301延伸凸设。具体地，该限位部1043凸设于环形支撑部1042靠近环形支撑部1042外壁的端部，以便于对第二振膜501和盆架20进行限位，第二振膜501卡接固定于环形支撑部1042上，而盆架20的一端则抵接在第二振膜501与环形支撑部1042接触面的背面，从而实现盆架20和环形支撑部1042对第二振膜501的固定，限位部1043抵接在第二振膜501的端部上，同时限位部1043还抵接在盆架20靠近第二振膜501的外壁上，限位部1043可以有效的限制第二振膜501在非振动方向上的移动，同时限位部1043还可以有效地对盆架20进行限制，以提高第二振膜501和盆架20安装的牢固性，进而提高整个扬声器箱100的牢固性。Preferably, the annular support table 104 includes an annular support portion 1042 and a limiting portion 1043 , wherein the annular support portion 1042 is protruded on the first panel 101 , and the limiting portion 1043 faces from the end surface of the annular support portion 1042 away from the first panel 101 . The connecting portion 301 extends and protrudes. Specifically, the limiting portion 1043 is protruded from the end portion of the annular support portion 1042 close to the outer wall of the annular support portion 1042, so as to limit the position of the second diaphragm 501 and the basin frame 20, and the second diaphragm 501 is clamped and fixed on the On the annular support portion 1042, one end of the pot frame 20 abuts on the back of the contact surface between the second diaphragm 501 and the annular support portion 1042, so as to realize the fixation of the second diaphragm 501 by the pot frame 20 and the annular support portion 1042. The limiting portion 1043 abuts on the end of the second diaphragm 501, and at the same time the limiting portion 1043 also abuts on the outer wall of the basin frame 20 close to the second diaphragm 501, the limiting portion 1043 can effectively limit the second vibration. The movement of the diaphragm 501 in the non-vibration direction, and the limiting portion 1043 can also effectively limit the basin frame 20, so as to improve the firmness of the installation of the second diaphragm 501 and the basin frame 20, thereby improving the firmness of the entire speaker box 100. sex.
在本实施例中，环形支撑台104、导声音通道105和第一面板101一体成型。当然，作为一种替代的实施方案，环形支撑台104、导声音通道105可以分别通过焊接方式与第一面板101固定成型，并且环形支撑台104和导声音通道105之间、导声音通道105和围板103之间同样可以是通过焊接方式固定成型，但不局限于这两种方式。In this embodiment, the annular support table 104 , the sound guiding channel 105 and the first panel 101 are integrally formed. Of course, as an alternative embodiment, the annular support table 104 and the sound guiding channel 105 can be fixed and formed with the first panel 101 by welding respectively, and between the annular supporting table 104 and the sound guiding channel 105, the sound guiding channel 105 and the The enclosure plates 103 may also be fixed and formed by welding, but are not limited to these two methods.
请参阅图1~图4、图8，磁碗30的内嵌部302包括第一横向板3024、环状纵向板3025，其中，第一横向板3024与第一出声孔1021间隔相对设置，而环状纵向板3025则自第一横向板3024之边缘朝向第一振膜401延伸，由第一横向板3024和环状纵向板3025围合形成凹腔3021。Referring to FIGS. 1 to 4 and 8 , the embedded portion 302 of the magnetic bowl 30 includes a first transverse plate 3024 and an annular longitudinal plate 3025, wherein the first transverse plate 3024 and the first sound outlet 1021 are disposed opposite to each other at intervals. The annular longitudinal plate 3025 extends from the edge of the first transverse plate 3024 toward the first diaphragm 401 , and the concave cavity 3021 is formed by the first transverse plate 3024 and the annular longitudinal plate 3025 .
磁碗30的连接部301为第二横向板，该第二横向板从环状纵向板3025之远离第一横向板3024的端部朝远离腔口3022的方向延伸，该第二横向板与盆架20的另一端连接。优选地，该第二横向板之远离凹腔3021的端部与第一出声孔1021的内侧壁连接，第一振膜401卡接在第二横向板之朝向第一出声孔1021的表面上。The connecting portion 301 of the magnetic bowl 30 is a second transverse plate, which extends from the end of the annular longitudinal plate 3025 away from the first transverse plate 3024 toward the direction away from the cavity 3022 . The second transverse plate is connected to the basin. The other end of the frame 20 is connected. Preferably, the end of the second transverse plate away from the cavity 3021 is connected to the inner side wall of the first sound outlet hole 1021 , and the first diaphragm 401 is clamped on the surface of the second transverse plate facing the first sound outlet hole 1021 superior.
本实施例中，由第一振膜401、凹腔3021围合成用于安装第一磁路系统60的第一容纳空间(图中未标出)，而由第二振膜501、盆架20、第一横向板3024、环状纵向板3025以及第二横向板围合成用于安装第二磁路系统70的第二容纳空间(图中未标出)，从而使得第一振动系统40、第一磁路系统60和第二振动系统50、第二磁路系统70形成嵌套式结构，进而提高了扬声器箱100的结构紧凑性。In this embodiment, a first accommodating space (not shown in the figure) for installing the first magnetic circuit system 60 is enclosed by the first diaphragm 401 and the cavity 3021 , and the second diaphragm 501 and the basin frame 20 are formed by the first accommodating space (not shown in the figure). , the first transverse plate 3024, the annular longitudinal plate 3025 and the second transverse plate to form a second accommodating space (not shown in the figure) for installing the second magnetic circuit system 70, so that the first vibration system 40, the first The first magnetic circuit system 60 and the second vibration system 50 and the second magnetic circuit system 70 form a nested structure, thereby improving the structural compactness of the speaker box 100 .
请参阅图1~图4、图9，盆架20开设有凹槽202，凹槽202用于连通容纳腔100a和中空内孔201，凹槽202的设计有利于容纳腔100a内和中空内孔201内(即第二容纳空间)的空气流通，以便于调节容纳腔100a内的气压与中空内孔201内的气压并加速发声单体200的热量散发速度，从而改善扬声器箱100的声学性能。第一横向板3024或者环状纵向板3025上设有第二通孔3026，或者，第一横向板3024和环状纵向板3025相互连接的部位开设有第二通孔3026，该第二通孔3026用于连通中空内孔201和凹腔3021，第二通孔3026的设计，有利于凹腔3021内(即第一容纳空间)的空气与中空内孔201中的空气流通，以便于调节凹腔3021内的气压和中空内孔201的气压，同时有利于凹腔3021内(即第一容纳空间)的空气与容纳腔100a的空气流通。而凹槽202和第二通孔3026的设计，使得箱体10的容纳腔100a、中空内孔201以及磁碗30之凹腔3021三者连通，有利于容纳腔100a、第一容纳空间、第二容纳空间之间的气体通，调节容纳腔100a、第一容纳空间、第二容纳空间的气压，从而改善扬声器箱100的声学性能。Please refer to FIG. 1 to FIG. 4 and FIG. 9. The basin frame 20 is provided with a groove 202. The groove 202 is used to communicate the accommodating cavity 100a and the hollow inner hole 201. The design of the groove 202 is beneficial to the interior of the accommodating cavity 100a and the hollow inner hole. The air in the 201 (ie the second accommodating space) is circulated, so as to adjust the air pressure in the accommodating cavity 100a and the air pressure in the hollow inner hole 201 and accelerate the heat dissipation speed of the sound generating unit 200, thereby improving the acoustic performance of the speaker box 100. A second through hole 3026 is formed on the first transverse plate 3024 or the annular longitudinal plate 3025, or a second through hole 3026 is formed in the part where the first transverse plate 3024 and the annular longitudinal plate 3025 are connected to each other. 3026 is used to communicate the hollow inner hole 201 and the cavity 3021. The design of the second through hole 3026 is conducive to the circulation of the air in the cavity 3021 (ie the first accommodation space) and the air in the hollow inner hole 201, so as to facilitate the adjustment of the cavity. The air pressure in the cavity 3021 and the air pressure in the hollow inner hole 201 are also favorable for the air in the cavity 3021 (ie, the first accommodating space) to circulate with the air in the accommodating cavity 100a. The groove 202 and the second through hole 3026 are designed so that the accommodating cavity 100a of the box 10, the hollow inner hole 201 and the cavity 3021 of the magnetic bowl 30 communicate with each other, which is beneficial to the accommodating cavity 100a, the first accommodating space, the The gas communication between the two accommodating spaces adjusts the air pressure of the accommodating cavity 100 a , the first accommodating space and the second accommodating space, thereby improving the acoustic performance of the speaker box 100 .
具体应用中，盆架20包括中空框体203、两个第一延伸臂204、两个第二延伸臂205，其中，两个第一延伸臂204从中空框体203朝向第二横向板延伸并与第二横向板连接，且两个第一延伸臂204相对设置，两个第二延伸臂205从中空框体203朝向第二横向板延伸并与第二横向板连接，且两个所述第二延伸臂205相对设置，相邻的第一延伸臂204和第二延伸臂205围合形成所述凹槽202，对应地，第一横向板3024和/或环状纵向板3025上开设有四个第二通孔3026。由此形成的四个凹槽202将容纳腔100a和中空内孔201连通，而四个第二通孔3026将中空内孔201与凹腔3021连通，从而更有利于气压的快速调节，从而可以进一步改善扬声器箱100的声学性能。当然，作为一种替代的实施方案，不局限于两个第一延伸臂204和两个第二延伸臂205，也可以是其他数量，凹槽202不局限于一个或者四个，也可以是两个、三个或者其他，对应地，第二通孔3026不局限于一个或者四个，也可以是两个、三个或者其他。In a specific application, the basin frame 20 includes a hollow frame body 203, two first extension arms 204, and two second extension arms 205, wherein the two first extension arms 204 extend from the hollow frame body 203 toward the second transverse plate and It is connected with the second transverse plate, and the two first extension arms 204 are disposed opposite to each other, and the two second extension arms 205 extend from the hollow frame 203 toward the second transverse plate and are connected with the second transverse plate, and the two The two extending arms 205 are arranged opposite to each other, and the adjacent first extending arms 204 and the second extending arms 205 are enclosed to form the groove 202 . Correspondingly, the first transverse plate 3024 and/or the annular longitudinal plate 3025 are provided with four a second through hole 3026 . The four grooves 202 thus formed connect the accommodating cavity 100a with the hollow inner hole 201, and the four second through holes 3026 connect the hollow inner hole 201 with the concave cavity 3021, which is more conducive to the rapid adjustment of the air pressure, so that it can be The acoustic performance of the speaker enclosure 100 is further improved. Of course, as an alternative embodiment, it is not limited to two first extension arms 204 and two second extension arms 205, and other numbers are also possible, and the number of grooves 202 is not limited to one or four, but also two number, three or others, correspondingly, the number of the second through holes 3026 is not limited to one or four, and may also be two, three or others.
请参阅图1~图4、图10，第一磁路系统60包括第一主磁钢602、第一副磁钢603、第一主极芯604、第一副极芯605；第一主磁钢602叠设于连磁部80朝向凹腔3021的表面；第一副磁钢603叠设在第一横向板3024位于凹腔3021内的表面上，第一副磁钢603间隔设于第一主磁钢602的外周，并且与第一主磁钢602围合形成第一磁间隙601；第一主极芯604叠设在第一主磁钢602朝向第一振膜401的表面；第一副极芯605叠设在第一副磁钢603朝向第一振膜401的表面。Please refer to FIGS. 1 to 4 and 10 , the first magnetic circuit system 60 includes a first main magnetic steel 602 , a first secondary magnetic steel 603 , a first main pole core 604 , and a first auxiliary pole core 605 ; the first main magnetic The steel 602 is stacked on the surface of the connecting magnetic part 80 facing the cavity 3021; the first auxiliary magnetic steel 603 is stacked on the surface of the first transverse plate 3024 located in the cavity 3021, and the first auxiliary magnetic steel 603 is spaced between the first and second magnetic steels 603. The outer circumference of the main magnetic steel 602 is surrounded by the first main magnetic steel 602 to form a first magnetic gap 601; the first main pole core 604 is stacked on the surface of the first main magnetic steel 602 facing the first diaphragm 401; The secondary pole core 605 is stacked on the surface of the first secondary magnetic steel 603 facing the first diaphragm 401 .
具体应用中，第一副磁钢603叠设在第一横向板3024避开第二通孔3026的部位；第一副极芯605为一块，其上开设有与第二通孔3026连通的缺口6051，以利于气体流通。In a specific application, the first secondary magnetic steel 603 is stacked on the first transverse plate 3024 avoiding the second through hole 3026; 6051 to facilitate gas circulation.
优选地，第一副磁钢603包括四个，其中两个第一副磁钢603分别设置在第一主磁钢602一相对的端部，而另外两个第一副磁钢603分别设置在第一主磁钢602另一相对的端部，并且四个第一副磁钢603均叠设在第一横向板3024避开第二通孔3026的部位上，以便于气体流通。当然，作为一种替代的实施方案，第一副磁钢603不局限于四个，也可以是其他的数量，或者第一副磁钢603具有中空环状结构，当第一副磁钢603具有中空环状结构时，其上设有与第二通孔3026相连通的导气孔。Preferably, the first secondary magnets 603 include four, wherein two of the first secondary magnets 603 are respectively arranged at an opposite end of the first main magnet 602, and the other two first secondary magnets 603 are respectively arranged at The other opposite end of the first main magnetic steel 602 and the four first auxiliary magnetic steels 603 are stacked on the part of the first transverse plate 3024 avoiding the second through hole 3026 to facilitate gas circulation. Of course, as an alternative embodiment, the number of the first auxiliary magnets 603 is not limited to four, and may also be other numbers, or the first auxiliary magnetic steel 603 has a hollow annular structure, when the first auxiliary magnetic steel 603 has In the case of the hollow annular structure, an air guide hole communicated with the second through hole 3026 is provided on it.
优选地，第一主磁钢602和连磁部80一体成型。当然，作为一种替代的实施方案，第一主磁钢602和连磁部80并不局限于一体成型，也可以通过焊接方式连接在一起，或者还可以是其他连接方式。此外，第一主磁钢602和连磁部80均由磁性材料制成，比如永磁铁等。Preferably, the first main magnetic steel 602 and the connecting magnetic part 80 are integrally formed. Of course, as an alternative embodiment, the first main magnetic steel 602 and the magnetic connecting portion 80 are not limited to being integrally formed, and may also be connected together by welding, or may also be connected in other ways. In addition, the first main magnetic steel 602 and the connecting magnetic part 80 are both made of magnetic materials, such as permanent magnets and the like.
本实施例中，第一磁路系统60与第一振动系统40构成一个发声系统，第一磁路系统60驱动第一振动系统40以产生声音，产生的声音由第一出声孔1021传播出去。由于第一磁路系统60设置在凹腔3021内，可以降低第一磁路系统60在扬声器箱100中所占的空间，提高扬声器箱100的结构紧凑性。In this embodiment, the first magnetic circuit system 60 and the first vibration system 40 form a sound system, the first magnetic circuit system 60 drives the first vibration system 40 to generate sound, and the generated sound is transmitted through the first sound outlet 1021 . Since the first magnetic circuit system 60 is disposed in the cavity 3021 , the space occupied by the first magnetic circuit system 60 in the speaker box 100 can be reduced, and the structural compactness of the speaker box 100 can be improved.
请参阅图1~图4、图10、图11，第二磁路系统70包括第二主磁钢702、第二副磁钢703、第二主极芯704、第二副极芯705；第二主磁钢702叠设在连磁部80背离凹腔3021的表面，第二副磁钢703叠设在连接部301(即第二横向板朝向第二振膜501的表面)上并与第二主磁钢702围合形成第二磁间隙701；第二主极芯704叠设在第二主磁钢702朝向第二振膜501的表面；第二副极芯705叠设在第二副磁钢703朝向第二振膜501的表面。Please refer to FIG. 1 to FIG. 4 , FIG. 10 , and FIG. 11 , the second magnetic circuit system 70 includes a second main magnetic steel 702 , a second auxiliary magnetic steel 703 , a second main pole core 704 , and a second auxiliary pole core 705 ; The two main magnets 702 are stacked on the surface of the connecting magnetic portion 80 that faces away from the cavity 3021 , and the second secondary magnets 703 are stacked on the connecting portion 301 (ie, the surface of the second transverse plate facing the second diaphragm 501 ) and connected to the second The two main magnetic steels 702 are enclosed to form a second magnetic gap 701 ; the second main pole core 704 is stacked on the surface of the second main magnetic steel 702 facing the second diaphragm 501 ; the second auxiliary pole core 705 is stacked on the second auxiliary pole core 705 The magnetic steel 703 faces the surface of the second diaphragm 501 .
具体应用中，第二主磁钢702设有第一避让口7021，第二主磁钢702叠设在连磁部80背离凹腔3021的表面并延伸叠设在第一横向板3024避开第二通孔3026的部位，且第一避让口7021和第二通孔3026相互连通，以利于气体流通；第二主极芯704设有第二避让口7041，第二避让口7041与第一避让口7021相连通以利于气体流通，第二主极芯704叠设在第二主磁钢702朝向第二振膜501的表面，并且避开第一避让口7021，使得第二通孔3026、第一避让口7021、以及第二避让口7041连通以利于气体流通。In a specific application, the second main magnetic steel 702 is provided with a first escape opening 7021, the second main magnetic steel 702 is stacked on the surface of the magnetic connecting portion 80 away from the cavity 3021, and is extended and stacked on the first transverse plate 3024 to avoid the The position of the two through holes 3026, and the first escape port 7021 and the second through hole 3026 communicate with each other to facilitate gas circulation; the second main pole core 704 is provided with a second escape port 7041, the second escape port 7041 and the first escape port 7041 The openings 7021 are connected to facilitate gas circulation. The second main pole core 704 is stacked on the surface of the second main magnetic steel 702 facing the second diaphragm 501, and avoids the first escape opening 7021, so that the second through hole 3026, the first An escape port 7021 and a second escape port 7041 communicate with each other to facilitate gas circulation.
优选地，第二副磁钢703包括四个，其中两个第二副磁钢703分别设置在第二主磁钢702一相对的端部并与连接部301(即第二横向板)连接，而另外两个第二副磁钢703分别设置在第二主磁钢702另一相对的端部并与连接部301(即第二横向板)连接。当然，作为一种替代的实施方案，第二副磁钢703不局限于四个，也可以是其他的数量，或者第二副磁钢703具有中空环状结构，当第二副磁钢703具有中空环状结构时，其上设有与第二通孔3026相连通的导气孔，以利于气体流通。第二副极芯705为一块，其具有中空结构，间隔套设在第二音圈502的外周且与第二音圈502之间具有间隙，同时，第二副极芯705与第二副磁钢703连接。Preferably, the second secondary magnetic steel 703 includes four, wherein two second secondary magnetic steels 703 are respectively disposed at opposite ends of the second main magnetic steel 702 and connected to the connecting portion 301 (ie, the second transverse plate), The other two second secondary magnetic steels 703 are respectively disposed on the other opposite ends of the second main magnetic steel 702 and connected to the connecting portion 301 (ie, the second transverse plate). Of course, as an alternative embodiment, the number of the second secondary magnetic steels 703 is not limited to four, and can also be other numbers, or the second secondary magnetic steel 703 has a hollow annular structure, when the second secondary magnetic steel 703 has In the case of the hollow annular structure, there are air guide holes connected with the second through holes 3026 to facilitate the flow of gas. The second secondary pole core 705 is a piece, which has a hollow structure, is sleeved on the outer circumference of the second voice coil 502 and has a gap with the second voice coil 502. Meanwhile, the second secondary pole core 705 and the second secondary magnetic Steel 703 connections.
优选地，第二主磁钢702和连磁部80一体成型。当然，作为一种替代的实施方案，第二主磁钢702和连磁部80并不局限于一体成型，也可以通过焊接方式连接在一起，或者还可以是其他连接方式。此外，第二主磁钢702和连磁部80均由磁性材料制成，比如永磁铁等。Preferably, the second main magnetic steel 702 and the connecting magnetic part 80 are integrally formed. Of course, as an alternative embodiment, the second main magnetic steel 702 and the magnetic connecting portion 80 are not limited to being integrally formed, and may also be connected together by welding, or may also be connected in other ways. In addition, the second main magnetic steel 702 and the connecting magnetic part 80 are both made of magnetic materials, such as permanent magnets and the like.
本实施例中，第二磁路系统70与第二振动系统50构成另一个发声系统，第二磁路系统70驱动第二振动系统50可以产生声音，产生的声音由第一出声孔1021传播出去。第二磁路系统70设置在凹腔3021外部以及盆架20中空内孔201的内侧壁之间，尤其第二副磁钢703设置在连接部301(及第二横向板朝向第二振膜501的表面)上，同样可以降低第二磁路系统70在扬声器箱100中占据的空间，提高扬声器箱100的结构紧凑性。In this embodiment, the second magnetic circuit system 70 and the second vibration system 50 constitute another sound generation system. The second magnetic circuit system 70 drives the second vibration system 50 to generate sound, and the generated sound is transmitted through the first sound outlet 1021 go out. The second magnetic circuit system 70 is arranged outside the cavity 3021 and between the inner wall of the hollow inner hole 201 of the basin frame 20 , especially the second secondary magnetic steel 703 is arranged at the connecting portion 301 (and the second transverse plate faces the second diaphragm 501 ) surface), the space occupied by the second magnetic circuit system 70 in the speaker cabinet 100 can also be reduced, and the structural compactness of the speaker cabinet 100 can be improved.
在一种优选的实施例中，第一主磁钢602、连磁部80及第二主磁钢702一体成型。In a preferred embodiment, the first main magnetic steel 602 , the connecting magnetic portion 80 and the second main magnetic steel 702 are integrally formed.
请参阅图1~图6，第一振动系统40还包括第一球顶403，第一球顶403叠设在第一振膜401朝向第一磁路系统60的表面，且与第一音圈402的另一端连接，第一球顶403的设置，有利于提高第一振动系统40的声学性能。Please refer to FIG. 1 to FIG. 6 , the first vibration system 40 further includes a first dome 403 . The first dome 403 is stacked on the surface of the first diaphragm 401 facing the first magnetic circuit system 60 and is connected to the first voice coil. The other end of 402 is connected, and the setting of the first spherical top 403 is beneficial to improve the acoustic performance of the first vibration system 40 .
第二振动系统50还包括第二球顶503，第二球顶503叠设在第二振膜501朝向第二磁路系统70的表面，并与第二音圈502的另一端连接，第二球顶503的设置，有利于提高第二振动系统50的声学性能。The second vibration system 50 further includes a second spherical top 503. The second spherical top 503 is stacked on the surface of the second diaphragm 501 facing the second magnetic circuit system 70, and is connected to the other end of the second voice coil 502. The arrangement of the dome 503 is beneficial to improve the acoustic performance of the second vibration system 50 .
本申请实施例还提供一种移动终端900。具体请参阅图1~图4、图12~图13，该移动终端900包括终端面板901和安装于终端面板901上的扬声器箱100。其中，扬声器箱100为上述的扬声器箱100，扬声器箱100上的第二面板102贴合安装于终端面板901上，终端面板901设有第三出声孔901a，第三出声孔901a与所述第一出声孔1021贯通。在移动终端900中，扬声器箱100中的第二振膜501、第二面板102及终端面板901围合形成第二前声腔100c。This embodiment of the present application also provides a mobile terminal 900 . For details, please refer to FIGS. 1 to 4 and FIGS. 12 to 13 . The mobile terminal 900 includes a terminal panel 901 and a speaker box 100 mounted on the terminal panel 901 . The speaker box 100 is the above-mentioned speaker box 100, the second panel 102 on the speaker box 100 is attached and installed on the terminal panel 901, the terminal panel 901 is provided with a third sound outlet 901a, and the third sound outlet 901a is connected to the terminal panel 901. The first sound outlet hole 1021 is passed through. In the mobile terminal 900, the second diaphragm 501, the second panel 102 and the terminal panel 901 in the speaker box 100 are enclosed to form a second front acoustic cavity 100c.
优选地，移动终端900还包括密封件902，该密封件902用于将终端面板901与第二面板102进行密封，密封件902可以是环形密封件，其叠设于终端面板901和第二面板102之间且环绕于第一出声孔1021的外周。在一些实施例中，密封件902为泡沫棉，当然，密封件902不局限于泡沫棉，也可以是其他具有密封效果的零部件。Preferably, the mobile terminal 900 further includes a sealing member 902 for sealing the terminal panel 901 and the second panel 102. The sealing member 902 may be an annular sealing member, which is stacked on the terminal panel 901 and the second panel. 102 and surrounding the outer circumference of the first sound outlet 1021 . In some embodiments, the sealing member 902 is foam cotton. Of course, the sealing member 902 is not limited to the foam cotton, and can also be other parts with sealing effect.
本申请实施例提供的移动终端900，由于其扬声器箱100是上述的扬声器箱100，即扬声器箱100的箱体10之第二面板102上贯穿设有第一出声孔1021，该第一出声孔1021用于受话，而围板103上贯穿设有第二出声孔1031，第二出声孔1031用于扬声，从而使得移动终端900具有扬声和受话功能，此外，由于扬声器箱100的第一振动系统40、第一磁路系统60设置在具有凹腔3021结构的磁碗30之凹腔3021内，而第二振动系统50、第二磁路系统70则设置在磁碗30之凹腔3021外，由第一振动系统40与第一磁路系统60构成的发声系统和第二振动系统50与第二磁路系统70构成的发声系统实现嵌套，提高了扬声器箱100的结构紧凑性，扬声器箱100占据移动终端900的空间比较小，使得移动终端900能够小型化，此外，由于第一磁路系统60的第一主磁钢602和第二磁路系统70的第二主磁钢702之间通过连磁部80连接，使得扬声器箱100具有良好的磁性能，并最终表现出良好的声学性能，也使得移动终端900在小型化的同时，具有良好的声学性能。In the mobile terminal 900 provided in this embodiment of the present application, since the speaker box 100 is the above-mentioned speaker box 100 , that is, the second panel 102 of the box body 10 of the speaker box 100 is provided with a first sound outlet 1021 through it. The sound hole 1021 is used for receiving calls, and the enclosure plate 103 is provided with a second sound hole 1031, which is used for speaker, so that the mobile terminal 900 has the functions of speaking and receiving. The first vibration system 40 and the first magnetic circuit system 60 of the speaker box 100 are arranged in the cavity 3021 of the magnetic bowl 30 having the cavity 3021 structure, while the second vibration system 50 and the second magnetic circuit system 70 are arranged in the magnetic cavity 3021 . Outside the cavity 3021 of the bowl 30, the sound generation system composed of the first vibration system 40 and the first magnetic circuit system 60 and the sound generation system composed of the second vibration system 50 and the second magnetic circuit system 70 are nested, which improves the speaker box. 100 is compact in structure, the speaker box 100 occupies a relatively small space in the mobile terminal 900, so that the mobile terminal 900 can be miniaturized. The second main magnets 702 are connected by the magnetic connecting part 80, so that the speaker box 100 has good magnetic performance, and finally shows good acoustic performance, and also enables the mobile terminal 900 to have good acoustic performance while being miniaturized .
以上所述仅是本申请的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本申请创造构思的前提下，还可以做出改进，但这些均属于本申请的保护范围。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 (10)

  1. 一种扬声器箱，包括具有容纳腔的箱体以及设置于所述容纳腔中的发声单体，其特征在于，所述箱体包括第一面板、与所述第一面板相对设置的第二面板和连接于所述第一面板与所述第二面板之间的围板；所述第二面板上贯穿设有第一出声孔，所述围板上贯穿设有第二出声孔；A speaker box, comprising a box body with an accommodating cavity and a sound-generating unit arranged in the accommodating cavity, wherein the box body comprises a first panel and a second panel arranged opposite to the first panel and an enclosure connected between the first panel and the second panel; the second panel is provided with a first sound outlet hole, and the enclosure plate is provided with a second sound outlet;
    所述发声单体包括盆架、磁碗、第一振动系统、第二振动系统、用于驱动所述第一振动系统发声的第一磁路系统、用于驱动所述第二振动系统发声的第二磁路系统和连接于所述第一磁路系统与所述第二磁路系统的连磁部；The sound generating unit includes a basin frame, a magnetic bowl, a first vibration system, a second vibration system, a first magnetic circuit system for driving the first vibration system to sound, and a first magnetic circuit system for driving the second vibration system to sound. a second magnetic circuit system and a magnetic connection part connected to the first magnetic circuit system and the second magnetic circuit system;
    所述盆架与所述箱体连接，所述盆架具有中空内孔；the basin frame is connected to the box body, and the basin frame has a hollow inner hole;
    所述磁碗包括与所述盆架一端连接的连接部和从所述连接部延伸穿设于所述中空内孔内的内嵌部；The magnetic bowl includes a connecting portion connected with one end of the basin frame and an embedded portion extending from the connecting portion and passing through the hollow inner hole;
    所述内嵌部具有凹腔，所述凹腔具有朝向所述第一出声孔的腔口，所述凹腔底部贯穿设有第一通孔；The embedded part has a cavity, the cavity has a cavity opening facing the first sound outlet hole, and a first through hole is formed through the bottom of the cavity;
    所述第一磁路系统设于所述凹腔内，所述第二磁路系统设于所述内嵌部的外壁和所述中空内孔的内侧壁之间，所述连磁部穿设于所述第一通孔内且两端分别连接所述第一磁路系统与所述第二磁路系统，所述第一磁路系统具有位于所述凹腔内的第一磁间隙，所述第二磁路系统具有位于所述凹腔外且位于所述中空内孔内的第二磁间隙；The first magnetic circuit system is arranged in the cavity, the second magnetic circuit system is arranged between the outer wall of the embedded part and the inner side wall of the hollow inner hole, and the magnetic connection part is penetrated The first through hole is connected to the first magnetic circuit system and the second magnetic circuit system at both ends, the first magnetic circuit system has a first magnetic gap located in the cavity, so the second magnetic circuit system has a second magnetic gap outside the cavity and inside the hollow inner hole;
    所述第一振动系统包括与所述磁碗连接的第一振膜和一端插设于所述第一磁间隙内且用于驱动所述第一振膜发声的第一音圈；The first vibration system includes a first diaphragm connected to the magnetic bowl and a first voice coil, one end of which is inserted in the first magnetic gap and used to drive the first diaphragm to emit sound;
    所述第二振动系统包括与所述盆架另一端连接的第二振膜和一端插设于所述第二磁间隙内且用于驱动所述第二振膜发声的第二音圈，所述第二振膜与所述箱体围合形成与所述第二出声孔连通的第一前声腔。The second vibration system includes a second diaphragm connected to the other end of the basin frame and a second voice coil, one end of which is inserted in the second magnetic gap and used to drive the second diaphragm to emit sound, so The second diaphragm and the box are enclosed to form a first front acoustic cavity communicating with the second sound outlet.
  2. 根据权利要求1所述的扬声器箱，其特征在于，所述内嵌部包括与所述第一出声孔间隔相对设置的第一横向板和从所述第一横向板边缘朝向所述第一振膜延伸的环状纵向板，所述第一横向板上贯穿设有所述第一通孔，所述第一横向板和所述环状纵向板围合形成所述凹腔；The loudspeaker box according to claim 1, wherein the inlay part comprises a first transverse plate disposed opposite to the first sound outlet at intervals and facing the first transverse plate from the edge of the first transverse plate an annular longitudinal plate extending from the vibrating membrane, the first through hole is formed through the first transverse plate, and the first transverse plate and the annular longitudinal plate are enclosed to form the cavity;
    所述连接部为第二横向板，所述第二横向板从所述环状纵向板之远离所述第一横向板的端部朝远离所述腔口的方向延伸。The connecting portion is a second transverse plate extending from an end of the annular longitudinal plate away from the first transverse plate in a direction away from the cavity opening.
  3. 根据权利要求2所述的扬声器箱，其特征在于，所述第一磁路系统包括第一主磁钢、第一副磁钢、第一主极芯、第一副极芯；The speaker box according to claim 2, wherein the first magnetic circuit system comprises a first main magnetic steel, a first auxiliary magnetic steel, a first main pole core, and a first auxiliary pole core;
    所述第二磁路系统包括第二主磁钢、第二副磁钢、第二主极芯、第二副极芯；The second magnetic circuit system includes a second main magnetic steel, a second auxiliary magnetic steel, a second main pole core, and a second auxiliary pole core;
    所述第一主磁钢和所述第二主磁钢分别叠设于所述连磁部的相对两侧，且所述第一主磁钢、所述连磁部及所述第二主磁钢一体成型；The first main magnetic steel and the second main magnetic steel are respectively stacked on opposite sides of the magnetic connection part, and the first main magnetic steel, the magnetic connection part and the second main magnetic steel Steel integral molding;
    所述第一副磁钢叠设于所述第一横向板之位于所述凹腔内的表面，且所述第一副磁钢间隔设于所述第一主磁钢的外周并与所述第一主磁钢围合形成所述第一磁间隙；The first auxiliary magnetic steel is stacked on the surface of the first transverse plate located in the cavity, and the first auxiliary magnetic steel is spaced on the outer circumference of the first main magnetic steel and is connected to the the first main magnetic steel is enclosed to form the first magnetic gap;
    所述第一主极芯叠设于所述第一主磁钢之朝向所述第一振膜的表面；the first main pole core is stacked on the surface of the first main magnet steel facing the first diaphragm;
    所述第一副极芯叠设于所述第一副磁钢之朝向所述第一振膜的表面；The first secondary pole core is stacked on the surface of the first secondary magnetic steel facing the first diaphragm;
    所述第二副磁钢叠设于所述第二横向板之朝向所述第二振膜的表面并与所述第二主磁钢围合形成所述第二磁间隙；The second secondary magnetic steel is stacked on the surface of the second transverse plate facing the second diaphragm, and is enclosed with the second main magnetic steel to form the second magnetic gap;
    所述第二主极芯叠设于所述第二主磁钢之朝向所述第二振膜的表面；The second main pole core is stacked on the surface of the second main magnet steel facing the second diaphragm;
    所述第二副极芯叠设于所述第二副磁钢之朝向所述第二振膜的表面。The second secondary pole core is stacked on the surface of the second secondary magnetic steel facing the second diaphragm.
  4. 根据权利要求3所述的扬声器箱，其特征在于，所述盆架开设有用于将所述容纳腔和所述中空内孔连通的凹槽；所述第一横向板和/或所述环状纵向板上开设有将所述中空内孔与所述凹腔连通的第二通孔。The speaker box according to claim 3, wherein the basin frame is provided with a groove for connecting the accommodating cavity and the hollow inner hole; the first transverse plate and/or the annular The longitudinal plate is provided with a second through hole which communicates the hollow inner hole with the concave cavity.
  5. 根据权利要求4所述的扬声器箱，其特征在于，所述盆架包括中空框体、两个第一延伸臂和两个第二延伸臂；The speaker box according to claim 4, wherein the basin frame comprises a hollow frame, two first extension arms and two second extension arms;
    两个所述第一延伸臂和两个所述第二延伸臂都从所述中空框体朝向所述第二横向板延伸并与所述第二横向板连接，且两个所述第一延伸臂相对设置，两个所述第二延伸臂相对设置，相邻的所述第一延伸臂和所述第二延伸臂围合形成所述凹槽；The two first extension arms and the two second extension arms both extend from the hollow frame body toward the second transverse plate and are connected with the second transverse plate, and the two first extension arms The arms are arranged oppositely, the two second extension arms are arranged oppositely, and the adjacent first extension arms and the second extension arms enclose the groove;
    所述第一横向板和/或所述环状纵向板上开设有四个所述第二通孔；和/或，The first transverse plate and/or the annular longitudinal plate are provided with four second through holes; and/or,
    所述第一副极芯上开设有与所述第二通孔连通的缺口；所述第二主磁钢设有与所述第二通孔连通的第一避让口；所述第二主极芯上设有与所述第一避让口连通的第二避让口。The first secondary pole core is provided with a gap that communicates with the second through hole; the second main magnetic steel is provided with a first escape port communicated with the second through hole; the second main pole The core is provided with a second escape port communicating with the first escape port.
  6. 根据权利要求1或2所述的扬声器箱，其特征在于，所述箱体还包括从所述第一面板延伸凸设于所述容纳腔内的环形支撑台，所述连接部与所述环形支撑台间隔相对设置，所述第二振动系统和所述第二磁路系统设于所述环形支撑台与所述连接部之间，所述第二振膜与所述环形支撑台、所述第一面板围合形成所述第一前声腔；所述环形支撑台设有用于连通所述第一前声腔与所述第二出声孔的开口。The loudspeaker box according to claim 1 or 2, wherein the box body further comprises an annular support platform extending from the first panel and protruding into the accommodating cavity, and the connecting portion is connected to the annular supporting platform. The supporting platforms are arranged opposite to each other at intervals, the second vibration system and the second magnetic circuit system are arranged between the annular supporting platform and the connecting portion, the second vibrating film and the annular supporting platform, the The first panel encloses the first front acoustic cavity; the annular support platform is provided with an opening for connecting the first front acoustic cavity and the second sound outlet hole.
  7. 根据权利要求6所述的扬声器箱，其特征在于，所述环形支撑台的外侧与所述围板的内侧之间具有间距，所述箱体还包括导声音通道，所述导声音通道从所述环形支撑台之设有所述开口的部位延伸至所述围板之设有所述第二出声孔的部位，且所述导声音通道贯穿设有连通所述开口与所述第二出声孔的连通孔。The speaker box according to claim 6, 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 box body further comprises a sound guide channel, the sound guide channel extending from the 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 outlet. The connecting hole of the sound hole.
  8. 根据权利要求7所述的扬声器箱，其特征在于，所述环形支撑台包括凸设于所述第一面板上的环形支撑部和从所述环形支撑部朝向所述连接部延伸凸设的限位部，所述第二振膜卡接于所述环形支撑部上，且所述盆架连接在所述第二振膜背对所述环形支撑部的表面；所述限位部抵接所述第二振膜的端部并抵接所述盆架靠近所述第二振膜的外壁。The loudspeaker box according to claim 7, wherein the annular support base comprises an annular support portion protruding from the first panel and a limiter protruding from the annular support portion toward the connecting portion. the second diaphragm is clamped on the annular supporting part, and the basin frame is connected to the surface of the second diaphragm facing away from the annular supporting part; The end of the second diaphragm abuts the basin frame and is close to the outer wall of the second diaphragm.
  9. 一种移动终端，包括扬声器箱和终端面板，其特征在于，所述扬声器箱为权利要求1~8任一项所述的扬声器箱，所述第二面板贴合于所述终端面板上，所述终端面板设有第三出声孔，所述第三出声孔与所述第一出声孔贯通。A mobile terminal, comprising a speaker box and a terminal panel, wherein the speaker box is the speaker box according to any one of claims 1 to 8, the second panel is attached to the terminal panel, and the The terminal panel is provided with a third sound outlet hole, and the third sound outlet hole communicates with the first sound outlet hole.
  10. 根据权利要求9所述的移动终端，其特征在于，所述终端面板与所述第二面板之间还设有用于将所述终端面板与所述第二面板进行密封的密封件。The mobile terminal according to claim 9, wherein a sealing member for sealing the terminal panel and the second panel is further provided between the terminal panel and the second panel.
PCT/CN2020/120987 2020-09-25 2020-10-14 Speaker box and mobile terminal WO2022061983A1 (en)

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