WO2020228344A1 - Excitateur et dispositif électronique - Google Patents

Excitateur et dispositif électronique Download PDF

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Publication number
WO2020228344A1
WO2020228344A1 PCT/CN2019/129779 CN2019129779W WO2020228344A1 WO 2020228344 A1 WO2020228344 A1 WO 2020228344A1 CN 2019129779 W CN2019129779 W CN 2019129779W WO 2020228344 A1 WO2020228344 A1 WO 2020228344A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
stator assembly
exciter
elastic
elastic piece
Prior art date
Application number
PCT/CN2019/129779
Other languages
English (en)
Chinese (zh)
Inventor
毛东升
朱跃光
张新众
马咪
高志明
Original Assignee
歌尔股份有限公司
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 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2020228344A1 publication Critical patent/WO2020228344A1/fr

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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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers
    • 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
    • H04R9/10—Telephone receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/03—Transducers capable of generating both sound as well as tactile vibration, e.g. as used in cellular phones

Definitions

  • the present invention relates to the technical field of electro-acoustic conversion devices, and more specifically, to an exciter and electronic equipment.
  • the sound generating device is an important electroacoustic transducer element in electronic products, which is used to convert current signals into sound. With the rapid development of electronic products in recent years, sound generating devices applied to electronic products have also been improved accordingly.
  • the traditional sounding device used for mobile phone handsets is the receiver.
  • the exciter In today's mobile phone industry, with people’s pursuit of the largest screen-to-body ratio, full-screen displays are gradually becoming the main development direction of mobile phones, and a technical problem comes with it. How to realize the earpiece function under the non-opening design of the screen, and have a better listening experience. Therefore, in order to solve the problem of the receiver opening on the mobile phone screen, the exciter is gradually replacing the receiver as a mobile phone sound component.
  • the exciter in the prior art generally has the problem of low frequency response in the effective high-frequency region. Therefore, how to optimize the sound effect of the exciter in the high-frequency region and provide users with a better sound experience has become a technology that has attracted much attention. problem.
  • An object of the present invention is to provide a new technical solution for exciters and electronic equipment.
  • an exciter including:
  • the buffer component is an elastic element sandwiched between the housing and the stator assembly, and the elastic element is configured to form elasticity between the housing and the stator assembly to adjust the elasticity of the stator assembly. coefficient.
  • the elastic element is a first elastic piece, both ends of the first elastic piece are bent to the same side, both ends of the first elastic piece are fixedly connected to the inner surface of the housing, and the stator assembly is fixedly connected On the first shrapnel.
  • the width of both ends of the first elastic piece is smaller than the width of the middle part.
  • the elastic element is a second elastic piece, both ends of the second elastic piece are bent to the same side, both ends of the second elastic piece are fixedly connected to the inner surface of the housing, and the stator assembly is fixedly connected On the second elastic piece; the ends of the two ends of the second elastic piece are relatively provided with notches.
  • the buffer component is a hollow part opened on the housing, the stator assembly is installed at the position of the hollow part of the housing, and the hollow part is configured to reduce the gap between the housing and the stator assembly.
  • the contact area to adjust the elastic coefficient of the stator assembly.
  • the hollow part is L-shaped.
  • four hollow parts are symmetrically arranged on the shell.
  • the vibrator assembly includes a magnet, a washer and an elastic component; the magnet and the washer are connected in the housing through the elastic component.
  • an electronic device including the exciter as described above.
  • a buffer part is arranged between the housing and the stator assembly, and the elastic coefficient of the stator assembly is adjusted by the buffer part, thereby improving the frequency response of the exciter in the high frequency region and optimizing the exciter in the high frequency region. Sound effects provide users with a better sound experience.
  • Figure 1 is a schematic structural diagram of a first embodiment of an exciter of the present invention
  • FIG. 2 is a schematic diagram of the structure of the first shrapnel in an exciter of the present invention
  • FIG. 3 is a schematic structural diagram of a second embodiment of an exciter of the present invention.
  • FIG. 4 is a schematic diagram of the structure of a second elastic piece in an exciter of the present invention.
  • Fig. 5 is a schematic structural diagram of a third embodiment of an exciter of the present invention.
  • an embodiment of the present invention provides an exciter, which includes a housing and a stator assembly fixed in the housing.
  • the housing may include The first housing 1 and the second housing 2 are connected together, and a space for accommodating the vibrator assembly and the stator assembly is formed between the first housing 1 and the second housing 2.
  • the exciter also includes a vibrator assembly located in the housing and matched with the stator assembly. The vibrator assembly is used as a vibration source to vibrate, and when it vibrates, it drives the screen or housing of the electronic device to vibrate and produce sound.
  • the exciter also includes a buffer component connected to the stator assembly.
  • the stator component may be a coil 3
  • the buffer component is configured to adjust the elastic coefficient of the stator assembly to improve
  • the frequency response of the exciter in the high-frequency region can optimize the sound effect of the exciter in the high-frequency region by improving the frequency response of the exciter in the high-frequency region, and provide users with a better sound experience.
  • the buffer component is an elastic element sandwiched between the second housing 2 and the coil 3.
  • the second housing 2 and the coil 3 are directly stacked together, so that the stator assembly
  • the elastic coefficient of the second housing 2 and the coil 3 is sandwiched between the second housing 2 and the coil 3 to form an elastic isolation, that is, the elastic element can not only The housing 2 and the coil 3 are isolated. More importantly, it can make the second housing 2 and the coil 3 have elasticity, so that the elastic coefficient of the stator assembly can be adjusted and the exciter can be improved. Frequency response of the frequency zone.
  • the elastic element is a first elastic piece 4, and both ends of the first elastic piece 4 are bent to the same side.
  • the two ends of the first elastic piece 4 are facing the same Side symmetrical bending, the bent ends of the first elastic piece 4 are fixedly connected (for example, welded) at the inner surface of the second housing 2, and the coil 3 is fixedly connected (for example, glued) on the first elastic piece 4 away from The surface of the second shell 2; the width of the two ends of the first elastic piece 4 is smaller than the width of the middle part, and the thickness of the two ends of the first elastic piece 4 can also be thinned to form a stepped structure at both ends,
  • through holes can be opened at both ends of the first elastic piece 4 to reduce the overall mass of the first elastic piece 4 and make it more compact and lighter.
  • the elastic element is a second elastic piece 5, and both ends of the second elastic piece 5 are bent to the same side.
  • the two ends of the second elastic piece 5 are facing the same Side symmetrical bending, both ends of the second elastic piece 5 are fixedly connected (for example, welded) at the inner surface of the second housing 2, and the coil 3 is fixedly connected (for example, glued) on the second elastic piece 5 away from the The surface of the second shell 2; the ends of the two ends of the second elastic piece 5 are provided with gaps opposite to each other, forming a fork-like structure, so that the two ends of the second elastic piece 5 and the inner surface of the second shell 2 There are a total of four connections, and this structure can reduce the quality of the second elastic piece 5 while ensuring the tightness of the connection between the second elastic piece 5 and the second housing 2.
  • the buffer member is a hollow part 6 opened on the second housing 2, and the stator assembly (for example, the coil 3) is installed in the hollow part of the second housing 2.
  • the hollow portion 6 is configured to reduce the contact area between the second housing 2 and the coil 3 to adjust the elastic coefficient of the stator assembly.
  • Stiffness thereby adjusting the elastic coefficient of the stator assembly, shifts the resonant frequency f0 of the stator assembly, and improves the frequency response of the exciter in the effective high frequency region.
  • the hollow part 6 is designed to be L-shaped and four L-shaped hollow parts 6 are symmetrically arranged on the second housing 2.
  • the hollow portion 6 may also have other shapes, such as a circle, and the number of hollow portions 6 is not limited to four, and can be flexibly set according to actual needs, as long as it is on the second housing 2.
  • the hollow part 6 provided can reduce the area of the fixed connection between the coil 3 and the second housing 2.
  • the vibrator assembly includes a magnet 7, a washer 8 and an elastic component.
  • the magnet 7 and the washer 8 are connected in the housing through the elastic component, so
  • the elastic component is a spring 9 or a third elastic piece;
  • the coil 3 is wound by a wire in one direction to form a closed ring structure, the middle of the coil 3 has a through hole, and the circumference of the through hole is the wire of the coil 3
  • the wiring area refers to the area through which the leads in the coil 3 actually pass, and the entire wiring area is ring-shaped.
  • the magnet 7 cooperates with the coil 3 to form a magnetic field.
  • the washer 8 is arranged on the magnet 7 to increase the magnetic induction intensity of the magnetic field.
  • the spring 9 or the third elastic piece is arranged on the washer 8.
  • the spring 9 or the third elastic piece can be arranged as required More than one.
  • An embodiment of the present invention also provides an electronic device, which includes the exciter as described above.
  • the electronic device may be a mobile phone or a tablet computer, etc., which is not limited in the present invention.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

L'invention concerne un excitateur et un dispositif électronique. L'excitateur comprend un boîtier, un ensemble stator fixé dans le boîtier, et un ensemble vibreur situé dans le boîtier et mis en prise avec l'ensemble stator. L'excitateur comprend en outre un composant tampon relié à l'ensemble stator. Le composant tampon est conçu pour ajuster un coefficient d'élasticité de l'ensemble stator de façon à améliorer la réponse en fréquence de l'excitateur dans une région à haute fréquence.
PCT/CN2019/129779 2019-05-14 2019-12-30 Excitateur et dispositif électronique WO2020228344A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910399465.1A CN110234054B (zh) 2019-05-14 2019-05-14 一种激励器及电子设备
CN201910399465.1 2019-05-14

Publications (1)

Publication Number Publication Date
WO2020228344A1 true WO2020228344A1 (fr) 2020-11-19

Family

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Application Number Title Priority Date Filing Date
PCT/CN2019/129779 WO2020228344A1 (fr) 2019-05-14 2019-12-30 Excitateur et dispositif électronique

Country Status (2)

Country Link
CN (1) CN110234054B (fr)
WO (1) WO2020228344A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110234054B (zh) * 2019-05-14 2020-09-22 歌尔股份有限公司 一种激励器及电子设备

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US20060266967A1 (en) * 2005-05-30 2006-11-30 Citizen Electronics Co., Ltd. Electromagnetic exciter
CN200973173Y (zh) * 2006-11-16 2007-11-07 常州美欧电子有限公司 振动发声器
CN101945317A (zh) * 2009-07-07 2011-01-12 陈奚平 一种扬声器
CN206100437U (zh) * 2016-09-06 2017-04-12 歌尔股份有限公司 骨传导扬声器单体以及骨传导耳机
CN109040917A (zh) * 2018-07-02 2018-12-18 歌尔股份有限公司 激励器以及屏幕发声装置
CN110234054A (zh) * 2019-05-14 2019-09-13 歌尔股份有限公司 一种激励器及电子设备

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US6487300B1 (en) * 1999-12-17 2002-11-26 Samsung Electro-Mechanics Co., Ltd. Vibration speaker
KR100793682B1 (ko) * 2007-01-16 2008-01-10 김정훈 초소형 선형 진동장치
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060266967A1 (en) * 2005-05-30 2006-11-30 Citizen Electronics Co., Ltd. Electromagnetic exciter
CN200973173Y (zh) * 2006-11-16 2007-11-07 常州美欧电子有限公司 振动发声器
CN101945317A (zh) * 2009-07-07 2011-01-12 陈奚平 一种扬声器
CN206100437U (zh) * 2016-09-06 2017-04-12 歌尔股份有限公司 骨传导扬声器单体以及骨传导耳机
CN109040917A (zh) * 2018-07-02 2018-12-18 歌尔股份有限公司 激励器以及屏幕发声装置
CN110234054A (zh) * 2019-05-14 2019-09-13 歌尔股份有限公司 一种激励器及电子设备

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CN110234054B (zh) 2020-09-22

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