WO2021168937A1 - 发声器件 - Google Patents

发声器件 Download PDF

Info

Publication number
WO2021168937A1
WO2021168937A1 PCT/CN2020/080102 CN2020080102W WO2021168937A1 WO 2021168937 A1 WO2021168937 A1 WO 2021168937A1 CN 2020080102 W CN2020080102 W CN 2020080102W WO 2021168937 A1 WO2021168937 A1 WO 2021168937A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
gap
vibration
magnetic steel
conduction
Prior art date
Application number
PCT/CN2020/080102
Other languages
English (en)
French (fr)
Inventor
曾健
曹成铭
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 WO2021168937A1 publication Critical patent/WO2021168937A1/zh

Links

Classifications

    • 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
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • 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
    • H04R9/025—Magnetic circuit
    • 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 invention relates to the field of sound and electricity, and in particular to a sound emitting device used in portable electronic products.
  • the related art sound device includes a basin frame, a vibration system fixed to the basin frame and a magnetic circuit system with a magnetic gap;
  • the vibration system includes a diaphragm fixed to the basin frame and a parallel connection
  • a voice coil inserted in the magnetic gap to drive the diaphragm to vibrate and produce sound;
  • the diaphragm and the magnetic circuit system are separated to form a vibration gap, and the voice coil separates the vibration gap into a first vibration The gap and the second vibration gap; during the vibration process, the diaphragm drives the air flow in the first vibration gap and the second vibration gap, the first vibration gap and the second vibration gap
  • the air passes through the gap between the voice coil and the magnetic circuit system to converge at the magnetic gap, and then communicates with the outside air through the leak hole.
  • the airflow in the first vibration gap and the second vibration gap is blocked when flowing into the magnetic gap, especially when the diaphragm vibrates at a high frequency to make the internal airflow faster.
  • the air in the first vibration gap and the second vibration gap is almost isolated into two independent air bodies, causing the air in the first vibration gap and the second vibration gap to be compressed under the drive of the diaphragm to produce a reaction force on the diaphragm , It affects the high-frequency vibration and sound, which makes the high-frequency acoustic performance of the sound-producing device poor.
  • the purpose of the present invention is to provide a sound generating device with excellent high-frequency acoustics.
  • the present invention provides a sound emitting device, which includes a basin frame, a vibration system fixed to the basin frame, and a magnetic circuit system with a magnetic gap, the vibration system including a vibration system fixed to the basin frame.
  • the magnetic steel component inside, the magnetic circuit system is provided with a pressure relief port connecting the magnetic gap with the outside; the upper surface of the magnetic steel component facing the diaphragm forms a vibration gap with the diaphragm, so
  • the magnetic steel assembly is provided with a conductive structure penetrating therethrough, and the conductive structure connects the magnetic gap and the vibration gap.
  • the conduction structure includes a through hole formed by the magnetic steel component recessed along the vibration direction of the diaphragm and disposed opposite to the diaphragm, and a through hole formed by the magnetic steel component close to the magnetic gap.
  • the magnetic steel assembly includes a main magnetic steel stacked in the magnetic bowl, the conduction structure includes a first conduction structure opened in the main magnetic steel, and the first conduction structure is formed by The side of the main magnetic steel close to the vibration gap penetrates to communicate with the magnetic gap.
  • the magnetic steel assembly further includes a secondary magnetic steel stacked in the magnetic bowl and arranged around the main magnetic steel, and the primary magnetic steel and the secondary magnetic steel are spaced apart to form the magnetic gap, so
  • the conduction structure further includes a second conduction structure opened on the secondary magnetic steel, and the second conduction structure penetrates through the secondary magnetic steel near the vibration gap to communicate with the magnetic gap.
  • the through hole includes a plurality of first through holes spaced apart from each other formed by the main magnetic steel recessed along the vibration direction, and the conduction channel includes the main magnetic steel respectively approaching the One side of the magnetic gap is recessed along the direction of vibration and formed a plurality of spaced apart first conduction channels, each of the first through holes communicates with one of the first conduction channels to jointly form one of the first conduction channels.
  • the first conduction structure is a plurality of first through holes spaced apart from each other formed by the main magnetic steel recessed along the vibration direction
  • the conduction channel includes the main magnetic steel respectively approaching the One side of the magnetic gap is recessed along the direction of vibration and formed a plurality of spaced apart first conduction channels, each of the first through holes communicates with one of the first conduction channels to jointly form one of the first conduction channels.
  • the through hole includes a plurality of first through holes spaced apart from each other formed by the main magnet recessed along the vibration direction, and the conduction channel includes the main magnet close to the magnet.
  • One side of the gap penetrates the first conduction channel of the main magnetic steel along the direction perpendicular to the vibration direction, and each of the first through holes respectively communicates with the first conduction channel to jointly form the first conduction structure.
  • the magnetic steel assembly includes a main magnetic steel stacked in the magnetic bowl and a secondary magnetic steel stacked in the magnetic bowl and arranged around the main magnetic steel.
  • the secondary magnetic steel forms the magnetic gap at intervals
  • the conduction structure includes a second conduction structure opened on the secondary magnetic steel
  • the second conduction structure is formed by the secondary magnetic steel close to the vibration gap. One side penetrates to communicate with the magnetic gap.
  • the conduction structure zigzags and extends from a side close to the vibration gap to the magnetic gap.
  • the magnetic steel component is separated from the diaphragm to form a vibration gap, and the magnetic steel component is provided with a conductive structure penetrating the magnetic steel component.
  • the arrangement of the ventilation structure effectively provides more flow space for the flow of internal airflow, making it easier for the air in the vibrating gap to flow into the magnetic gap, and then out of the outside through the pressure relief port, ensuring the smooth flow of internal air and avoiding vibration in the gap.
  • the air is compressed to produce a reaction force on the diaphragm to ensure the reliability of the high-frequency vibration of the diaphragm, thereby improving the high-frequency sounding performance of the sound-producing device.
  • FIG. 1 is a schematic diagram of a three-dimensional structure of a sound emitting device according to the first embodiment of the present invention
  • FIG. 2 is an exploded schematic diagram of a part of the three-dimensional structure of the sound generating device according to the first embodiment of the present invention
  • FIG. 3 is a three-dimensional structure assembly diagram of the magnetic circuit system according to the first embodiment of the present invention.
  • Figure 4 is an exploded schematic view of the three-dimensional structure of Figure 3;
  • Figure 5 is a cross-sectional view taken along line A-A in Figure 1;
  • FIG. 6 is a graph showing the relationship between the sound pressure level and the frequency of the sound generating device of the present invention and the related art sound generating device;
  • FIG. 7 is a three-dimensional structure assembly diagram of the magnetic circuit system of the second embodiment of the present invention.
  • Fig. 8 is an exploded schematic view of the three-dimensional structure of Fig. 6;
  • Fig. 9 is a schematic cross-sectional view of a sound emitting device according to the second embodiment of the present invention.
  • FIG. 10 is a three-dimensional structure assembly diagram of the magnetic circuit system of the third embodiment of the present invention.
  • Fig. 11 is an exploded schematic view of the three-dimensional structure of Fig. 10;
  • Fig. 12 is a schematic cross-sectional view of a sound emitting device according to a third embodiment of the present invention.
  • FIG. 13 is a schematic cross-sectional view of a sound emitting device according to the fourth embodiment of the present invention.
  • Fig. 14 is a schematic cross-sectional view of a sound emitting device according to a fifth embodiment of the present invention.
  • the present invention provides a sound generating device 100, which includes a basin frame 1, a vibration system 2, and a magnetic circuit system 3 with a magnetic gap 30; the vibration system 2 and the magnetic circuit system 3 They are respectively fixed on opposite sides of the basin frame 1.
  • the vibration system 2 includes a diaphragm 21 and a voice coil 22 that drives the diaphragm 21 to vibrate and produce sound.
  • the voice coil 22 is connected to the diaphragm 21 and inserted into the magnetic gap 30. Inside.
  • the diaphragm 21 includes a folding ring portion 211, a fixing portion 212 bent and extending from the outer periphery of the folding ring portion 211 and fixed to the basin frame 1, and a fixing portion 212 bent by the inner periphery of the folding ring portion 211
  • the vibrating part 213 that extends and is connected to the voice coil 22 is folded.
  • the vibration system 2 can be additionally provided with an elastic support assembly 23 that elastically supports the voice coil 22, and the elastic support assembly 23 includes a frame fixed to the basin frame. 1 is away from the side of the diaphragm 21 and spaced apart from the magnetic circuit system 3.
  • the elastic support assembly 23 includes an elastic member 231 and an auxiliary diaphragm 232.
  • auxiliary diaphragm 232 is fixedly connected to the side of the frame 1 away from the diaphragm 21, and the other end is connected to the side of the voice coil 22 away from the vibrating portion 213;
  • the elastic member 231 is a flexible circuit
  • the plate is attached and fixed on the side of the auxiliary diaphragm 232 away from the diaphragm 21, and the elastic member 231 is electrically connected to the voice coil 22.
  • the elastic support assembly 23 on the one hand, it is used to improve the vibration intensity and balance of the vibration system 2 and effectively suppress the lateral swing.
  • the voice coil 22 is led out to connect to an external power source, avoiding the voice coil lead structure There is a risk that the voice coil lead is easily broken when the power is pulled out.
  • the magnetic circuit system 3 includes a magnetic bowl 31 and a magnetic steel assembly 32.
  • the magnetic bowl 31 is fixed to the end of the basin frame 1 away from the diaphragm 21, the magnetic bowl 31 is recessed to form the pressure relief port 310; the magnetic steel assembly 32 is fixed to the magnetic bowl 31 and is connected to the The magnetic bowl 31 jointly forms the magnetic gap 30, and the upper surface of the magnetic steel assembly 32 facing the diaphragm 21 is spaced from the diaphragm 21 to form a vibration gap 10, and the vibration gap 10 provides all The vibration space required when the diaphragm 21 vibrates; the voice coil 22 divides the vibration gap 10 into a first vibration gap 101 opposite to the vibration part 213 and a first vibration gap 101 opposite to the folding ring part 211 The second vibration gap 102.
  • the magnetic steel component 32 is provided with a conductive structure 320 penetrating through it and connecting the magnetic gap 30 and the vibration gap 10;
  • the through hole formed by the vibration direction of the diaphragm 1 is recessed and arranged opposite to the diaphragm 1, and the conduction channel formed by the side of the magnetic steel component 32 that is close to the magnetic bowl 31 and is recessed along the direction of vibration perpendicular to the direction of vibration.
  • One end of the through hole is in communication with the vibration gap 10, and the other end is in communication with the magnetic gap 30 through the conduction channel.
  • the specific structure of the magnetic circuit system 3 is not limited, and it can be, but not limited to, any of a single magnetic steel magnetic circuit structure, a three magnetic steel magnetic circuit structure, and a five magnetic circuit magnetic steel structure.
  • the magnetic circuit system 3 has a five-magnetic circuit structure, and the magnetic steel component 32 includes a magnetic steel assembly fixed to the magnetic bowl 31 The main magnet 321 and the secondary magnet 322 fixed to the magnetic bowl 31 and spaced from the main magnet 321 to form the magnetic gap 30; of course, the magnetic circuit system can be a single magnet steel structure including only the main magnet At this time, the magnetic gap is formed on the outer peripheral side of the main magnet.
  • the main magnet 321 and the vibrating part 213 form the first vibration gap 101 at an interval, and the auxiliary magnet 322 and the folding ring part 212 form the second vibration gap at an interval.
  • the conduction structure 320 includes a first conduction structure 3210 opened in the main magnet 321, the first conduction structure 3210 is penetrated by the main magnet 321 near the vibration part 213 side It communicates with the magnetic gap 30.
  • the through hole of the conduction structure 320 is a first through hole 3211 formed by the main magnet 321 recessed along the vibration direction of the diaphragm 21 and disposed opposite to the vibrating portion 213.
  • the conduction channel of the conduction structure 320 is a first conduction channel 3212 through which the main magnet 321 is close to the magnetic bowl 31 in the direction perpendicular to the vibration direction.
  • the first through hole 3211 and The first conduction channel 3212 together constitutes the first conduction structure 3210; one end of the first through hole 3211 communicates with the first vibration gap 101, and the other end passes through the first conduction channel 3212 It communicates with the magnetic gap 30.
  • first conductive structures is not limited, and can be specifically set according to actual conditions.
  • first conductive structure 3210 there is one first conductive structure 3210, and the first conductive structure 3210
  • the through structure 3210 is composed of a first through hole 3211 and a first conduction channel 3212; of course, the first conduction structure may also be multiple.
  • the first through holes include multiple and are spaced apart from each other.
  • the first conduction channel includes a plurality of and is arranged at intervals, and each first through hole is communicated with a first conduction channel to jointly form a first conduction structure.
  • the air in the first vibration gap 101 and the second vibration gap 102 is more effective. It is easy to flow into the magnetic gap 30, that is, the air flow under the folding ring portion 211 and the vibrating portion 213 is more smooth, which prevents the air in the first vibration gap 101 and the air in the second vibration gap 102 from being Compression produces a reaction force on the diaphragm 21 to ensure that the diaphragm 21 is not prone to split vibration during high-frequency vibration, to ensure the reliability of the high-frequency vibration of the diaphragm 21, and to improve the high-frequency sound of the sound generating device 100 performance.
  • FIG. 6 respectively shows the relationship between the sound pressure level and frequency of the sound generating device of the present invention and the relationship between the sound pressure level and frequency of the related art sound generating device.
  • the analysis of FIG. 6 shows that the sound output of the related technology
  • the frequency of the device is 10KHz
  • the diaphragm produces a large segmented vibration, so that the related art sounding device works at a frequency of 10KHz.
  • the sound pressure level (frequency response) drops sharply; while the air flow under the folding ring portion 211 and the vibrating portion 213 of the sound generating device 100 of the present invention is smoother, so that when the diaphragm 21 works at a frequency of 10KHz, the diaphragm 21 is less prone to split vibration, so that the sound pressure level (ie frequency response) of the sound emitting device 100 of the present invention at a frequency of 10KHz is significantly higher than that of related art sound emitting devices, that is, through the above-mentioned structural arrangement, the present invention is effectively improved The high frequency acoustic performance of the sound emitting device 100.
  • the secondary magnet 322 includes two first secondary magnets 323 and two second secondary magnets 324; the two first secondary magnets 323 are respectively fixed to the magnetic bowl 31 and Are arranged at opposite intervals on the opposite sides of the main magnet 321, one first auxiliary magnet 323 is arranged on the same side of each elastic support assembly 23, and the first auxiliary magnet 323 on the same side is
  • the elastic support components 23 are arranged at relatively intervals; the two second auxiliary magnets 324 are respectively fixed to the magnetic bowl 31 and are arranged at opposite intervals on the other opposite sides of the main magnet 321.
  • the magnetic steel 324 is arranged opposite to the opposite ends of the first conducting channel 3212 respectively.
  • the magnetic field lines of the magnetic circuit system 3 are cut by the voice coil 22 as much as possible to form a greater driving force.
  • the circuit system 3 can be additionally provided with a main pole core 33 and an upper clamping plate 34; the main pole core 33 is superimposed and fixed on the side of the main magnetic steel 321 away from the magnetic bowl 31, and has a through hole along the vibration direction. There is a first through hole 330 on it.
  • the first through hole 330 connects the first vibration gap 101 with the first through hole 3211; the upper clamping plate 34 is embedded and fixed to the fixing plate 1
  • the ring 341 and the secondary pole core 342 extending from the fixed ring 341 protrudingly perpendicular to the vibration direction and superimposed on the secondary magnetic steel 322, more specifically, the secondary pole core 342 includes the fixed ring 341 protrudingly extends perpendicular to the vibration direction and is stacked on the first secondary pole core 3421 of the first secondary magnet 323, and the fixed ring 341 protrudes and extends perpendicular to the vibration direction and is stacked on the first secondary pole core 3421 of the first secondary magnet 323
  • the second sub-pole core 3422 of the second sub-magnet 324 is described.
  • the arrangement of the main pole core 33 and the secondary pole core 342 of the upper clamping plate 34 makes the magnetic field lines of the magnetic circuit system 3 more concentrated, effectively improving the magnetic performance of the magnetic circuit system 3, and better Provide driving force for the vibration system 2.
  • the sound emitting device 100a of the second embodiment is basically the same as the sound emitting device of the first embodiment.
  • the sounding device 100a of the second embodiment is also provided with a conductive structure on the auxiliary magnetic steel.
  • the configuration of the conductive structure of the sounding device 100a of the second embodiment will be described below in conjunction with the structure of the magnetic circuit system:
  • the magnetic circuit system 3a includes a magnetic bowl 31a and a magnetic steel assembly.
  • the magnetic steel assembly includes a main magnet 321a fixed to the magnetic bowl 31a, and two second magnets respectively fixed to the magnetic bowl 31a and relatively spaced apart on opposite sides of the main magnet 321a.
  • a pair of magnets 323a and two second magnets 324a fixed to the magnetic bowl 31a and arranged at opposite intervals on the other opposite sides of the main magnet 321a, the main magnet 321a, two first auxiliary magnets 323a, and two The two second sub-magnets 324a are spaced apart from each other to form a magnetic gap 30a.
  • the conduction structure 320a includes a first conduction structure 3210a opened on the main magnet 321 and a second conduction structure 3220a opened on the secondary magnet.
  • the through structure 3210a is penetrated by the side of the main magnet 321a close to the vibrating part 213a to communicate with the magnetic gap 30a. One side penetrates to communicate with the magnetic gap 30a.
  • the through hole of the conductive structure 320a includes a first through hole 3211a formed by the main magnet 321a recessed along the vibration direction of the diaphragm 21a and arranged opposite to the vibrating part 213a, and a second through hole 3211a formed by the second auxiliary magnet 324a.
  • the second through hole 3241a is recessed in the direction of vibration and disposed opposite to the folding ring portion 211a.
  • the conduction structure of the conduction structure 320a includes a side of the main magnet 321a near the magnetic bowl 31a passing through it in the vertical vibration direction.
  • the first vibration gap 101a communicates with the magnetic gap 30a through the first conductive structure 3210a
  • the second vibration gap 102a communicates with the magnetic gap 30a through the second conductive structure 3220a, that is, the conductive structure 320a connects the
  • the first vibration gap 101a and the second vibration gap 102a are in communication with the magnetic gap 30a, which more effectively provides more flow space for the flow of internal airflow, and is more conducive to improving the high-frequency acoustic performance of the speaker box.
  • the magnetic circuit system 3a further includes a main pole core 33a and an upper clamping plate which are stacked and fixed on the main magnet 321a away from the magnetic bowl 31a.
  • the first through hole 330a connects the first vibration gap 101a with the first through hole 3211a;
  • the upper splint includes a fixing ring embedded and fixed to the basin frame, and the fixing ring protrudes and extends in the vertical vibration direction and is stacked on
  • the vibration direction is provided with a second through hole 340a penetrating therethrough, and the second through hole 340a communicates the second vibration gap 102a with the second through hole 3241a.
  • the sound emitting device 100b of the third embodiment is basically the same as the sound emitting device of the first embodiment, and the same parts of the two are not repeated here.
  • the implementation The conduction structure of the sound emitting device 100b of the third mode is only set on the auxiliary magnetic steel.
  • the configuration of the conduction structure of the sound emitting device 100b of the third embodiment will be described below in conjunction with the structure of the magnetic circuit system:
  • the magnetic circuit system 3b includes a magnetic bowl 31b and a magnetic steel assembly.
  • the magnetic steel assembly includes a main magnet 321b fixed to the magnetic bowl 31b, and two second magnets 321b fixed to the magnetic bowl 31b and relatively spaced apart on opposite sides of the main magnet 321b.
  • a pair of magnets 323b and two second magnets 324b fixed to the magnetic bowl 31b and arranged at opposite intervals on the other opposite sides of the main magnet 321b, the main magnet 321b, two first auxiliary magnets 323b, and two The two second sub-magnets 324b are spaced apart from each other to form a magnetic gap 30b.
  • the conduction structure 320b includes a second conduction structure 3220b opened on the secondary magnetic steel, and the second conduction structure 3220b is formed by the secondary magnetic steel close to a part of the folding ring portion 211a. The side penetrates to communicate with the magnetic gap 30a.
  • the through hole of the conduction structure 320b is a second through hole 3241b formed by the second sub-magnet 324b recessed along the vibration direction and the folding ring portion 211b is disposed opposite to each other.
  • the conduction structure of the conduction structure 320a It is a second conduction channel 3242b formed by the side of the second auxiliary magnet 324b close to the magnetic bowl 31b recessed along the vertical vibration direction.
  • the second through hole 3241a and the second conduction channel 3242a jointly constitute the second conduction structure 3220a; One end of the second through hole 3241b communicates with the second vibration gap 102b, and the other end communicates with the magnetic gap 30b through the second conduction channel 3242b.
  • the conducting structure 320b connects the second vibration gap 102b with the magnetic gap 30b, which more effectively provides more flow space for the flow of internal airflow, and is more conducive to improving the high-frequency acoustic performance of the speaker box.
  • the magnetic circuit system 3b further includes a main pole core 33b and an upper splint which are stacked and fixed on the main magnetic steel 321b away from the magnetic bowl 31b;
  • the ring 341b protrudes along the vertical vibration direction and is superimposed on the first secondary pole core 3421b of the first secondary magnet 323b, and the fixed ring 341b protrudes and extends along the vertical vibration direction and is superimposed on the first secondary magnet 324b.
  • the second secondary pole core 3422b is provided with a second through hole 340b extending therethrough along the vibration direction.
  • the second through hole 340b communicates the second vibration gap 102b with the second through hole 3241b.
  • the sound emitting device 100c of the fourth embodiment is basically the same as the sound emitting device of the first embodiment, and the same parts will not be repeated here.
  • the conduction structure and implementation of the sound emitting device 100c of the fourth embodiment The conduction structure of the sound emitting device in the first mode is different.
  • the configuration of the conduction structure of the sound emitting device 100c of the fourth embodiment will be described below in conjunction with FIG. 12:
  • the number of the first through holes is not limited, and it can be multiple, that is, the first through holes include at least two and are spaced apart from each other.
  • the specific number of first through holes is set according to actual design requirements.
  • the main magnet 321c is recessed along the vibration direction of the diaphragm 21c to form three first through holes 3211c spaced apart from each other, and the main magnet 321c is provided on the side close to the magnetic gap.
  • the first conduction channel 3211c of the main magnet 321c penetrates perpendicular to the vibration direction; one end of the three first through holes 3211c communicates with the first vibration gap 101c, and the other end passes through the first conduction channel 3212c and the magnetic gap 30c respectively Connected, the three first through holes 3211c and the first conduction channel 3212c together form a first conduction structure 3210c.
  • the air in the first vibration gap 101c can enter the first conducting channel 3212c through the plurality of first through holes 3211c, which effectively makes the air circulation inside the sound generating device 100c smoother and better improves its sound production. Effect.
  • the sound emitting device 100d of the fourth embodiment is basically the same as the sound emitting device of the first embodiment, and the same parts will not be repeated here.
  • the cross section of the conduction structure of the sound emitting device 100d of the fifth embodiment The shape is different from the cross-sectional shape of the conductive structure of the sound emitting device of the first embodiment.
  • the configuration of the conductive structure of the sound emitting device 100d of the fourth embodiment will be described below in conjunction with FIG. 13:
  • the conduction structure 320d is opened in the main magnetic steel 321d.
  • the conduction structure 320d zigzags and extends from the side close to the vibration gap 10d to the magnetic gap 30d.
  • the conduction structure 320d is connected to the first vibration gap 101d at one end close to the diaphragm 21d , The end close to the yoke 31d communicates with the magnetic gap 30d.
  • the conduction structure 320d extends tortuously, it can reduce the air resistance at the corners of the conduction structure 320d, so that the air circulation is smoother and improved.
  • the magnetic steel component is separated from the diaphragm to form a vibration gap, and the magnetic steel component is provided with a conductive structure penetrating the magnetic steel component.
  • the arrangement of the ventilation structure effectively provides more flow space for the flow of internal airflow, making it easier for the air in the vibrating gap to flow into the magnetic gap, and then out of the outside through the pressure relief port, ensuring the smooth flow of internal air and avoiding vibration in the gap.
  • the air is compressed to produce a reaction force on the diaphragm to ensure the reliability of the high-frequency vibration of the diaphragm, thereby improving the high-frequency sounding performance of the sound-producing device.

Landscapes

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

Abstract

本发明提供一种发声器件，其包括盆架以及分别固定于盆架的振动系统和具有磁间隙的磁路系统，振动系统包括固定于盆架的振膜以及驱动振膜振动发声的音圈，音圈插设于磁间隙内，磁路系统包括固接于盆架的磁碗以及叠设于磁碗内的磁钢组件，磁路系统设有连通磁间隙与外界的泄压口；磁钢组件正对振膜一侧的上表面与振膜间隔形成振动间隙，磁钢组件设有贯穿其上的导通结构，导通结构连通磁间隙与振动间隙。与相关技术相比，本发明的发声器件高频声学性优。

Description

发声器件 技术领域
本发明涉及声电领域，尤其涉及一种运用于便携式电子产品的发声器件。
 背景技术
随着移动互联网时代的到来，智能移动设备的数量不断上升。而在众多移动设备之中，手机无疑是最常见、最便携的移动终端设备。用于播放声音的发声器件被大量应用到现在的手机等智能移动设备之中。
相关技术的发声器件包括盆架以及分别固定于所述盆架的振动系统和具有磁间隙的磁路系统；所述振动系统包括固定于所述盆架的振膜以及连接于所述振膜并插设于所述磁间隙内用以驱动所述振膜振动发声的音圈；所述振膜和所述磁路系统间隔形成振动间隙，所述音圈将所述振动间隙分隔为第一振动间隙和第二振动间隙；在振动过程中，所述振膜带动所述第一振动间隙和所述第二振动间隙内的空气流动，所述第一振动间隙和所述第二振动间隙内的空气通过所述音圈与所述磁路系统之间的间隙以在所述磁间隙汇合，然后通过泄漏孔与外界空气联通。
 技术问题
然而，相关技术中，由于磁间隙的空间小，导致第一振动间隙和第二振动间隙的气流流入磁间隙时受阻，尤其是在振膜高频振动以使内部的气流速度较快时，第一振动间隙和第二振动间隙内的空气几乎被隔绝成两个独立的空气体，导致第一振动间隙和第二振动间隙内的空气在振膜的带动下被压缩而对振膜产生反作用力，影响高频振动发声，使得发声器件的高频声学性能差。
因此，实有必要提供一种新的发声器件解决上述技术问题。
 技术解决方案
本发明的目的在于提供一种高频声学性优的发声器件。
为达到上述目的，本发明提供一种发声器件，其包括盆架以及分别固定于所述盆架的振动系统和具有磁间隙的磁路系统，所述振动系统包括固定于所述盆架的振膜以及驱动所述振膜振动发声的音圈，所述音圈插设于所述磁间隙内，所述磁路系统包括固接于所述盆架的磁碗以及叠设于所述磁碗内的磁钢组件，所述磁路系统设有连通所述磁间隙与外界的泄压口；所述磁钢组件正对振膜一侧的上表面与所述振膜间隔形成振动间隙，所述磁钢组件设有贯穿其上的导通结构，所述导通结构连通所述磁间隙与所述振动间隙。
优选的，所述导通结构包括由所述磁钢组件沿所述振膜的振动方向凹陷形成且与所述振膜相对设置的通孔以及由所述磁钢组件靠近所述磁间隙的一侧沿垂直所述振动方向凹陷形成的导通通道，所述通孔的其中一端与所述振动间隙连通，另一端通过所述导通通道与所述磁间隙连通。
优选的，所述磁钢组件包括叠设于所述磁碗内的主磁钢，所述导通结构包括开设于所述主磁钢的第一导通结构，所述第一导通结构由所述主磁钢靠近所述振动间隙的一侧贯穿至与所述磁间隙连通。
优选的，所述磁钢组件还包括叠设于所述磁碗内且围绕所述主磁钢设置的副磁钢，所述主磁钢与所述副磁钢间隔形成所述磁间隙，所述导通结构还包括开设于所述副磁钢的第二导通结构，所述第二导通结构由所述副磁钢靠近所述振动间隙的一侧贯穿至于所述磁间隙连通。
优选的，所述通孔包括分别由所述主磁钢沿所述振动方向凹陷形成的多个相互间隔设置的第一通孔，所述导通通道包括分别由所述主磁钢靠近所述磁间隙的一侧沿垂直所述振动方向凹陷形成的多个相互间隔设置的第一导通通道，每一所述第一通孔与一个所述第一导通通道连通以共同构成一个所述第一导通结构。
优选的，所述通孔包括分别由所述主磁钢沿所述振动方向凹陷形成的多个相互间隔设置的第一通孔，所述导通通道包括由所述主磁钢靠近所述磁间隙的一侧沿垂直所述振动方向贯穿所述主磁钢的第一导通通道，各所述第一通孔分别与该第一导通通道连通以共同构成所述第一导通结构。
优选的，所述磁钢组件包括叠设于所述磁碗内的主磁钢以及叠设于所述磁碗内且围绕所述主磁钢设置的副磁钢，所述主磁钢与所述副磁钢间隔形成所述磁间隙，所述导通结构包括开设于所述副磁钢的第二导通结构，所述第二导通结构由所述副磁钢靠近所述振动间隙的一侧贯穿至于所述磁间隙连通。
优选的，所述导通结构自靠近所述振动间隙一侧曲折延伸至所述磁间隙。
 有益效果
与相关技术相比，本发明的发声器件中，磁钢组件与振膜间隔形成振动间隙，磁钢组件设有贯穿其上的导通结构，该导通结构连通磁间隙与振动间隙，通过导通结构的设置，有效地为内部气流的流动提供更多的流动空间，使得振动间隙的空气更容易流入磁间隙，继而通过泄压口流出外界，保证了内部的空气流动畅通，避免振动间隙内的空气被压缩而对振膜产生反作用力，保证振膜高频振动的可靠性，进而改善发声器件的高频发声性能。
 附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：
图1为本发明实施方式一的发声器件的立体结构示意图；
图2为本发明实施方式一的发声器件的部分立体结构分解示意图；
图3为本发明实施方式一的磁路系统的立体结构装配图；
图4为图3的立体结构分解示意图；
图5为沿图1中A-A线的剖视图；
图6为本发明发声器件与相关技术发声器件的声压级与频率之间的变化关系曲线图；
图7为本发明实施方式二的磁路系统的立体结构装配图；
图8为图6的立体结构分解示意图；
图9为本发明实施方式二的发声器件的截面示意图；
图10为本发明实施方式三的磁路系统的立体结构装配图；
图11为图10的立体结构分解示意图；
图12为本发明实施方式三的发声器件的截面示意图；
图13为本发明实施方式四的发声器件的截面示意图；
图14为本发明实施方式五的发声器件的截面示意图。
 本发明的实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
实施方式一
请参图1-5所示，本发明提供一种发声器件100，其包括盆架1、振动系统2以及具有磁间隙30的磁路系统3；所述振动系统2和所述磁路系统3分别固定于所述盆架1的相对两侧。
在本实施方式中，所述振动系统2包括振膜21以及驱动所述振膜21振动发声的音圈22，所述音圈22连接于所述振膜21并插设于所述磁间隙30内。
更具体的，所述振膜21包括折环部211、由所述折环部211外周缘弯折延伸且固定于所述盆架1的固定部212以及由所述折环部211内周缘弯折延伸且与所述音圈22连接的振动部213。
更优的，为了提高所述振动系统2的振动可靠性，所述振动系统2还可以增设弹性支撑所述音圈22的弹性支撑组件23，所述弹性支撑组件23包括固定于所述盆架1远离所述振膜21一侧并与所述磁路系统3间隔设置。
具体的，所述弹性支撑组件23包括弹性件231以及辅助振膜232。
所述辅助振膜232一端固定连接于所述盆架1远离所述振膜21一侧，另外一端连接于所述音圈22远离所述振动部213一侧；所述弹性件231为柔性电路板，其贴设固定于所述辅助振膜232远离所述振膜21一侧，且所述弹性件231与所述音圈22电连接。通过弹性支撑组件23的设置，一方面用于提高所述振动系统2的振动强度和平衡，有效抑制横向摇摆，另一方面为所述音圈22引出至连接外部电源，避免了音圈引线结构引出电源时音圈引线容易断裂的风险。
所述磁路系统3包括磁碗31以及磁钢组件32。
所述磁碗31固定于所述盆架1远离所述振膜21一端，所述磁碗31凹陷形成所述泄压口310；所述磁钢组件32固定于所述磁碗31并与所述磁碗31共同形成所述磁间隙30，所述磁钢组件32正对所述振膜21一侧的上表面与所述振膜21间隔形成振动间隙10，所述振动间隙10提供了所述振膜21振动时所需要的振动空间；所述音圈22并将所述振动间隙10分隔为与所述振动部213相对设置的第一振动间隙101和与所述折环部211相对设置的第二振动间隙102。
所述磁钢组件32设有贯穿其上且将所述磁间隙30与所述振动间隙10连通的导通结构320；具体的，所述导通结构320包括由所述磁钢组件32沿所述振膜1的振动方向凹陷形成且与所述振膜1相对设置的通孔以及由所述磁钢组件32靠近所述磁碗31的一侧沿垂直所述振动方向凹陷形成的导通通道，所述通孔的其中一端与所述振动间隙10连通，另一端通过所述导通通道与所述磁间隙30连通。
值得一提的是，所述磁路系统3的具体结构形式是不限的，其可以为但不限于单磁钢磁路结构、三磁钢磁路结构和五磁路磁钢结构中的任意一种，其可以根据实际设计的需要进行具体的设置，比如，在本实施方式中，所述磁路系统3为五磁路结构，所述磁钢组件32包括固定于所述磁碗31的主磁钢321以及固定于所述磁碗31且与所述主磁钢321间隔形成所述磁间隙30的副磁钢322；当然，磁路系统可以为只包括主磁钢的单磁钢结构，此时，磁间隙形成于主磁钢的外周侧。
在本实施方式一中，所述主磁钢321与所述振动部213间隔形成所述第一振动间隙101，所述副磁钢322与所述折环部212间隔形成所述第二振动间隙102；所述导通结构320包括开设于所述主磁钢321的第一导通结构3210，所述第一导通结构3210由所述主磁钢321靠近所述振动部213一侧贯穿至与所述磁间隙30连通。
更具体的，所述导通结构320的通孔为由所述主磁钢321沿所述振膜21的振动方向凹陷形成且与所述振动部213相对设置的第一通孔3211，所述导通结构320的导通通道为由所述主磁钢321靠近所述磁碗31的一侧沿垂直所述振动方向贯穿其上的第一导通通道3212，所述第一通孔3211和所述第一导通通道3212共同构成所述第一导通结构3210；所述第一通孔3211的其中一端与所述第一振动间隙101连通，另一端通过所述第一导通通道3212与所述磁间隙30连通。
需要说明的是，第一导通结构的数量是不限的，其可以根据实际情况进行具体的设置，比如，在本实施方式中，所述第一导通结构3210为一个，该第一导通结构3210由一个第一通孔3211和一个第一导通通道3212共同构成；当然，第一导通结构也可以为多个，在其他实施方式中，第一通孔包括多个且相互间隔设置，第一导通通道包括多个且相互间隔设置，每一第一通孔与一个第一导通通道连通以共同构成一个第一导通结构。
上述结构中，通过所述第一导通结构3210的设置，有效地为内部气流的流动提供更多的流动空间，使得所述第一振动间隙101和所述第二振动间隙102内的空气更容易流入所述磁间隙30，即使得所述折环部211和所述振动部213下方空气流动更通畅，避免了所述第一振动间隙101内的空气和第二振动间隙102内的空气被压缩而对所述振膜21产生反作用力，保证所述振膜21在高频振动时不易发生分割振动，保证所述振膜21高频振动的可靠性，进而改善发声器件100的高频发声性能。
具体的，图6分别示出本发明发声器件的声压级与频率之间的变化关系以及相关技术发声器件的声压级与频率之间的变化关系，由图6分析可知，相关技术的发声器件的频率为10KHz时，由于相关技术的发声器件的折环部和振动部振动形态不同甚至相反，从而导致振膜产生较大的分割振动，使得相关技术的发声器件在10KHz的频率下工作时，其声压级（即频响）急剧下降；而本发明的发声器件100的折环部211和振动部213下方的空气流动更通畅，使得振膜21在10KHz的频率下工作时，振膜21更不易发生分割振动，使得本发明的发声器件100在10KHz的频率的声压级（即频响）的明显高于相关技术的发声器件，即通过上述的结构设置，有效地改善了本发明的发声器件100的高频声学性能。
值得一提的是，所述副磁钢322包括两个第一副磁钢323以及两个第二副磁钢324；两个所述第一副磁钢323分别固定于所述磁碗31且相对间隔设置于所述主磁钢321相对两侧，在各所述弹性支撑组件23的同一侧设置一个所述第一副磁钢323，同一侧的所述第一副磁钢323与所述弹性支撑组件23相对间隔设置；两个所述第二副磁钢324分别固定于所述磁碗31且相对间隔设置于所述主磁钢321另外相对两侧，该两个所述第二副磁钢324分别与所述第一导通通道3212的相对两端相对设置。
更优的，为了进一步提高所述磁路系统3的磁学性能，使所述磁路系统3的磁力线尽可能多的被所述音圈22切割，以形成更大的驱动力，所述磁路系统3还可以增设主极芯33以及上夹板34；所述主极芯33叠设固定于所述主磁钢321远离所述磁碗31一侧，其上沿所述振动方向设有贯穿其上的第一通孔330，所述第一通孔330将所述第一振动间隙101与所述第一通孔3211连通；所述上夹板34嵌设固定于所述盆架1的固定环341以及由所述固定环341沿垂直所述振动方向凸出延伸且叠设于所述副磁钢322的副极芯342，更具体的，所述副极芯342包括由所述固定环341沿垂直所述振动方向凸出延伸且叠设于所述第一副磁钢323的第一副极芯3421以及由所述固定环341沿垂直所述振动方向凸出延伸且叠设于所述第二副磁钢324的第二副极芯3422。
通过所述主极芯33和所述上夹板34的副极芯342的设置，使得所述磁路系统3的磁力线更加集中，有效地提高所述磁路系统3的磁学性能，更好地为所述振动系统2提供驱动力。
实施方式二
请参阅图7-9所示，实施方式二的发声器件100a与实施方式一的发声器件基本相同，两者相同的部分在此不再一一赘述，与实施方式一的发声器件相比，实施方式二的发声器件100a在副磁钢上也设置了导通结构，下面将结合磁路系统的结构对本实施方式二的发声器件100a的导通结构设置展开说明：
磁路系统3a包括磁碗31a以及磁钢组件，磁钢组件包括固定于磁碗31a的主磁钢321a、分别固定于磁碗31a且相对间隔设置于主磁钢321a相对两侧的两个第一副磁钢323a以及分别固定于磁碗31a且相对间隔设置于主磁钢321a另外相对两侧的两个第二副磁钢324a，主磁钢321a、两个第一副磁钢323a以及两个第二副磁钢324a相互间隔形成磁间隙30a。
在本实施方式二中，所述导通结构320a包括开设于所述主磁钢321的第一导通结构3210a以及开设于所述副磁钢的第二导通结构3220a，所述第一导通结构3210a由所述主磁钢321a靠近所述振动部213a一侧贯穿至与所述磁间隙30a连通，所述第二导通结构3220a由所述副磁钢靠近所述折环部211a的一侧贯穿至与所述磁间隙30a连通。
更具体的，所述导通结构320a的通孔包括由主磁钢321a沿振膜21a的振动方向凹陷形成且与振动部213a相对设置的第一通孔3211a以及由第二副磁钢324a沿振动方向凹陷形成且与折环部211a相对设置的第二通孔3241a，所述导通结构320a的导通结构包括由主磁钢321a靠近磁碗31a的一侧沿垂直振动方向贯穿其上的第一导通通道3212a以及由第二副磁钢324a靠近磁碗31a的一侧沿垂直振动方向凹陷形成的第二导通通道3242a，所述第一通孔3211a和所述第一导通通道3212a共同构成第一导通结构3210a，第二通孔3241a和第二导通通道3242a共同构成所述第二导通结构3220a；第一通孔3211a的其中一端与第一振动间隙101a连通，另一端通过第一导通通道3212a与磁间隙30a连通，第二通孔3241a的其中一端与第二振动间隙102a连通，另一端通过第二导通通道3242a与磁间隙30a连通。
本实施方式二中，第一振动间隙101a通过第一导通结构3210a与磁间隙30a连通，第二振动间隙102a通过第二导通结构3220a与磁间隙30a连通，即导通结构320a将所述第一振动间隙101a和所述第二振动间隙102a与磁间隙30a连通，更有效地为内部气流的流动提供更多的流动空间，更有利于改善扬声器箱的高频声学性能。
更优的，磁路系统3a还包括叠设固定于主磁钢321a远离磁碗31a一侧的主极芯33a以及上夹板，主极芯33a设有沿振动方向设有贯穿其上的第一通孔330a，第一通孔330a将第一振动间隙101a与第一通孔3211a连通；上夹板包括嵌设固定于盆架的固定环、由固定环沿垂直振动方向凸出延伸且叠设于第一副磁钢323a的第一副极芯3421a以及由固定环341a沿垂直振动方向凸出延伸且叠设于第二副磁钢324a的第二副极芯3422a，第二副极芯3422a沿振动方向设有贯穿其上的第二通孔340a，第二通孔340a将第二振动间隙102a与第二通孔3241a连通。
实施方式三
请参阅图10-12所示，实施方式三的发声器件100b与实施方式一的发声器件基本相同，两者相同的部分在此不再一一赘述，与实施方式一的发声器件相比，实施方式三的发声器件100b的导通结构仅设置在副磁钢上，下面将结合磁路系统的结构对本实施方式三的发声器件100b的导通结构设置展开说明：
磁路系统3b包括磁碗31b以及磁钢组件，磁钢组件包括固定于磁碗31b的主磁钢321b、分别固定于磁碗31b且相对间隔设置于主磁钢321b相对两侧的两个第一副磁钢323b以及分别固定于磁碗31b且相对间隔设置于主磁钢321b另外相对两侧的两个第二副磁钢324b，主磁钢321b、两个第一副磁钢323b以及两个第二副磁钢324b相互间隔形成磁间隙30b。
在本实施方式三中，导通结构320b包括开设于所述副磁钢的第二导通结构3220b，所述第二导通结构3220b由所述副磁钢靠近所述折环部211a的一侧贯穿至与所述磁间隙30a连通。
更具体的，所述导通结构320b的通孔为由第二副磁钢324b沿振动方向凹陷形成且折环部211b相对设置的第二通孔3241b，所述导通结构320a的导通结构为由第二副磁钢324b靠近磁碗31b的一侧沿垂直振动方向凹陷形成的第二导通通道3242b，第二通孔3241a和第二导通通道3242a共同构成所述第二导通结构3220a；第二通孔3241b的其中一端与第二振动间隙102b连通，另一端通过第二导通通道3242b与磁间隙30b连通。
本实施方式三中，导通结构320b将第二振动间隙102b与磁间隙30b连通，更有效地为内部气流的流动提供更多的流动空间，更有利于改善扬声器箱的高频声学性能。
更优的，磁路系统3b还包括叠设固定于主磁钢321b远离磁碗31b一侧的主极芯33b以及上夹板；上夹板包括嵌设固定于盆架1b的固定环341b、由固定环341b沿垂直振动方向凸出延伸且叠设于第一副磁钢323b的第一副极芯3421b以及由固定环341b沿垂直振动方向凸出延伸且叠设于第二副磁钢324b的第二副极芯3422b，第二副极芯3422b沿振动方向设有贯穿其上的第二通孔340b，第二通孔340b将第二振动间隙102b与第二通孔3241b连通。
实施方式四
请参阅图13所示，实施方式四的发声器件100c与实施方式一的发声器件基本相同，两者相同的部分在此不再一一赘述，实施方式四的发声器件100c的导通结构和实施方式一的发声器件的导通结构不同，下面将结合图12对本实施方式四的发声器件100c的导通结构设置展开说明：
第一通孔的数量是不限的，其可以为多个，即第一通孔包括至少两个且相互间隔设置，各第一通孔分别与第一导通通道连通以共同构成第一导通结构，第一通孔的具体数量根据实际设计的需求进行设置。比如，在本实施方式四中，主磁钢321c沿振膜21c的振动方向凹陷形成三个相互间隔设置的第一通孔3211c，且主磁钢321c靠近所述磁间隙的一侧设有沿垂直所述振动方向贯穿主磁钢321c的第一导通通道3211c；三个所述第一通孔3211c一端与第一振动间隙101c连通，另一端分别通过第一导通通道3212c与磁间隙30c连通，三个所述第一通孔3211c和所述第一导通通道3212c共同构成第一导通结构3210c。
上述结构中，使得第一振动间隙101c的空气可以通过多个第一通孔3211c进入到第一导通通道3212c内，有效使得发声器件100c内部的空气流通更为顺畅，更好地改善其发声效果。
实施方式五
请参阅图14所示，实施方式四的发声器件100d与实施方式一的发声器件基本相同，两者相同的部分在此不再一一赘述，实施方式五的发声器件100d的导通结构的截面形状和实施方式一的发声器件的导通结构的截面形状不同，下面将结合图13对本实施方式四的发声器件100d的导通结构设置展开说明：
导通结构320d开设于主磁钢321d，该导通结构320d自靠近振动间隙10d一侧曲折延伸至磁间隙30d，具体的，该导通结构320d靠近振膜21d一端与第一振动间隙101d连通，靠近磁轭31d的一端与磁间隙30d连通。
由于该导通结构320d为曲折延伸的，其可以减少空气在导通结构320d的拐角处的阻力，使得空气流通更为流畅，提高。
与相关技术相比，本发明的发声器件中，磁钢组件与振膜间隔形成振动间隙，磁钢组件设有贯穿其上的导通结构，该导通结构连通磁间隙与振动间隙，通过导通结构的设置，有效地为内部气流的流动提供更多的流动空间，使得振动间隙的空气更容易流入磁间隙，继而通过泄压口流出外界，保证了内部的空气流动畅通，避免振动间隙内的空气被压缩而对振膜产生反作用力，保证振膜高频振动的可靠性，进而改善发声器件的高频发声性能。
以上所述的仅是本发明的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出改进，但这些均属于本发明的保护范围。

Claims (8)

  1. 一种发声器件，其包括盆架以及分别固定于所述盆架的振动系统和具有磁间隙的磁路系统，所述振动系统包括固定于所述盆架的振膜以及驱动所述振膜振动发声的音圈，所述音圈插设于所述磁间隙内，所述磁路系统包括固接于所述盆架的磁碗以及叠设于所述磁碗内的磁钢组件，所述磁路系统设有连通所述磁间隙与外界的泄压口，其特征在于，所述磁钢组件正对振膜一侧的上表面与所述振膜间隔形成振动间隙，所述磁钢组件设有贯穿其上的导通结构，所述导通结构连通所述磁间隙与所述振动间隙。
  2. 根据权利要求1所述的发声器件，其特征在于，所述导通结构包括由所述磁钢组件沿所述振膜的振动方向凹陷形成且与所述振膜相对设置的通孔以及由所述磁钢组件靠近所述磁间隙的一侧沿垂直所述振动方向凹陷形成的导通通道，所述通孔的其中一端与所述振动间隙连通，另一端通过所述导通通道与所述磁间隙连通。
  3. 根据权利要求2所述的发声器件，其特征在于，所述磁钢组件包括叠设于所述磁碗内的主磁钢，所述导通结构包括开设于所述主磁钢的第一导通结构，所述第一导通结构由所述主磁钢靠近所述振动间隙的一侧贯穿至与所述磁间隙连通。
  4. 根据权利要求3所述的发声器件，其特征在于，所述磁钢组件还包括叠设于所述磁碗内且围绕所述主磁钢设置的副磁钢，所述主磁钢与所述副磁钢间隔形成所述磁间隙，所述导通结构还包括开设于所述副磁钢的第二导通结构，所述第二导通结构由所述副磁钢靠近所述振动间隙的一侧贯穿至于所述磁间隙连通。
  5. 根据权利要求2所述的发声器件，其特征在于，所述通孔包括分别由所述主磁钢沿所述振动方向凹陷形成的多个相互间隔设置的第一通孔，所述导通通道包括分别由所述主磁钢靠近所述磁间隙的一侧沿垂直所述振动方向凹陷形成的多个相互间隔设置的第一导通通道，每一所述第一通孔与一个所述第一导通通道连通以共同构成一个所述第一导通结构。
  6. 根据权利要求2所述的发声器件，其特征在于，所述通孔包括分别由所述主磁钢沿所述振动方向凹陷形成的多个相互间隔设置的第一通孔，所述导通通道包括由所述主磁钢靠近所述磁间隙的一侧沿垂直所述振动方向贯穿所述主磁钢的第一导通通道，各所述第一通孔分别与该第一导通通道连通以共同构成所述第一导通结构。
  7. 根据权利要求2所述的发声器件，其特征在于，所述磁钢组件包括叠设于所述磁碗内的主磁钢以及叠设于所述磁碗内且围绕所述主磁钢设置的副磁钢，所述主磁钢与所述副磁钢间隔形成所述磁间隙，所述导通结构包括开设于所述副磁钢的第二导通结构，所述第二导通结构由所述副磁钢靠近所述振动间隙的一侧贯穿至于所述磁间隙连通。
  8. 根据权利要求1所述的发声器件，其特征在于，所述导通结构自靠近所述振动间隙一侧曲折延伸至所述磁间隙。
PCT/CN2020/080102 2020-02-25 2020-03-19 发声器件 WO2021168937A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010117789.4A CN111327998A (zh) 2020-02-25 2020-02-25 发声器件
CN202010117789.4 2020-02-25

Publications (1)

Publication Number Publication Date
WO2021168937A1 true WO2021168937A1 (zh) 2021-09-02

Family

ID=71171065

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/080102 WO2021168937A1 (zh) 2020-02-25 2020-03-19 发声器件

Country Status (2)

Country Link
CN (1) CN111327998A (zh)
WO (1) WO2021168937A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111641907B (zh) * 2020-06-24 2021-07-09 瑞声科技(新加坡)有限公司 发声器件

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170332175A1 (en) * 2014-12-16 2017-11-16 Goertek Inc. Micro speaker
CN209105448U (zh) * 2019-06-10 2019-07-12 瑞声光电科技(常州)有限公司 扬声器
CN209390356U (zh) * 2018-12-30 2019-09-13 瑞声科技(新加坡)有限公司 扬声器
CN209897258U (zh) * 2018-12-31 2020-01-03 瑞声科技(新加坡)有限公司 一种微型发声器件
CN210093516U (zh) * 2019-06-30 2020-02-18 瑞声科技(新加坡)有限公司 发声器件

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5042072A (en) * 1989-04-14 1991-08-20 Harman International Industries, Inc. Self-cooled loudspeaker
US5497428A (en) * 1994-11-01 1996-03-05 Rojas; Omar E. Self-cooled magnetic structure for loudspeakers
CA2245351A1 (en) * 1998-09-08 2000-03-08 The Canadian Loudspeaker Corporation Forced air cooling system
CN101562768B (zh) * 2009-05-22 2013-04-10 瑞声声学科技(深圳)有限公司 微型发声器
CN208015987U (zh) * 2017-11-28 2018-10-26 歌尔科技有限公司 一种发声装置组件及模组
CN208806972U (zh) * 2018-08-03 2019-04-30 瑞声科技（南京）有限公司 扬声器
CN209314082U (zh) * 2019-01-23 2019-08-27 深圳市信维声学科技有限公司 一种扬声器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170332175A1 (en) * 2014-12-16 2017-11-16 Goertek Inc. Micro speaker
CN209390356U (zh) * 2018-12-30 2019-09-13 瑞声科技(新加坡)有限公司 扬声器
CN209897258U (zh) * 2018-12-31 2020-01-03 瑞声科技(新加坡)有限公司 一种微型发声器件
CN209105448U (zh) * 2019-06-10 2019-07-12 瑞声光电科技(常州)有限公司 扬声器
CN210093516U (zh) * 2019-06-30 2020-02-18 瑞声科技(新加坡)有限公司 发声器件

Also Published As

Publication number Publication date
CN111327998A (zh) 2020-06-23

Similar Documents

Publication Publication Date Title
WO2020228341A1 (zh) 发声器件
WO2021258440A1 (zh) 发声器件
WO2020140544A1 (zh) 发声器件
WO2021174569A1 (zh) 扬声器
US11678107B2 (en) Speaker
CN111698617A (zh) 一种发声装置和电子设备
WO2021174576A1 (zh) 发声器件
KR20160108510A (ko) 스피커
WO2021223263A1 (zh) 一种扬声器
WO2021168937A1 (zh) 发声器件
CN111698618A (zh) 一种发声装置和电子设备
WO2021109189A1 (zh) 发声器件
WO2019015069A1 (zh) 一种扬声器
WO2020134344A1 (zh) 发声器件
WO2021174577A1 (zh) 发声器件
CN102611971A (zh) 球顶式振动系统及其制作方法以及扬声器
CN109982222B (zh) 一种微型受话器
WO2022110433A1 (zh) 发声器件
WO2022000777A1 (zh) 发声器件
WO2021119995A1 (zh) 发声器件
WO2021114211A1 (zh) 发声器件
US11671762B2 (en) Speaker
WO2024000665A1 (zh) 扬声器
US11622201B2 (en) Speaker
CN103260113B (zh) 发声器件

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20920974

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20920974

Country of ref document: EP

Kind code of ref document: A1