WO2021128004A1 - Haut-parleur - Google Patents

Haut-parleur Download PDF

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Publication number
WO2021128004A1
WO2021128004A1 PCT/CN2019/127990 CN2019127990W WO2021128004A1 WO 2021128004 A1 WO2021128004 A1 WO 2021128004A1 CN 2019127990 W CN2019127990 W CN 2019127990W WO 2021128004 A1 WO2021128004 A1 WO 2021128004A1
Authority
WO
WIPO (PCT)
Prior art keywords
armature
voice coil
diaphragm
magnetic steel
magnetic field
Prior art date
Application number
PCT/CN2019/127990
Other languages
English (en)
Chinese (zh)
Inventor
吴树文
张旺
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
Priority to PCT/CN2019/127990 priority Critical patent/WO2021128004A1/fr
Publication of WO2021128004A1 publication Critical patent/WO2021128004A1/fr

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
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/02—Loudspeakers
    • 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 invention relates to the technical field of electro-acoustic conversion, in particular to a loudspeaker.
  • the sound film is directly glued to the dome, the coil is energized, and the up and down force is generated by cutting the magnetic field lines in the magnetic field to push the sound film to generate sound, and use the vibration of the dome to promote the flow of air , Radiate the energy.
  • the coil is energized and cuts the magnetic field lines in the magnetic field, the dome does not produce magnetism, that is, it does not produce S/N poles. It is only used to push the air to radiate the energy, resulting in poor overall performance of the speaker, and the ball The top rigidity is poor.
  • the purpose of the present invention is to provide a loudspeaker speaker to improve the overall performance of the loudspeaker and meet design requirements.
  • a loudspeaker comprising a diaphragm, a voice coil, and a central magnetic steel, the voice coil is fixed under the diaphragm for driving the diaphragm, and the central magnetic steel is located under the diaphragm and located at the sound Among the coils, a magnetic field is formed on the peripheral side of the central magnetic steel, and the voice coil is suspended in the magnetic field, so that when the voice coil is energized, the up and down force is generated by cutting the magnetic field lines in the magnetic field.
  • the diaphragm, an armature is arranged below the diaphragm, the armature is located above the central magnetic steel, the armature is located in the voice coil, and the upper surface of the armature is fixed on the vibrating On the membrane, the side surface of the armature is fixed on the inner wall of the voice coil, the armature can generate magnetism due to the energization of the voice coil, and the polarity of the armature changes with the change of the current, so that the The armature can generate alternating attractive and repulsive forces with the central magnet.
  • the upper end of the voice coil is provided with a ring-shaped conductive part along the circumferential direction, and the ring-shaped conductive part directly contacts the diaphragm.
  • the armature is provided on the inner side of the ring-shaped conductive part, and the peripheral edge of the armature is fixedly connected to the ring-shaped conductive part.
  • the speaker further includes an auxiliary component
  • the auxiliary component includes a magnetic yoke and a basin frame
  • the magnetic yoke is accommodated and fixed in the basin frame
  • the magnetic yoke is used to install the central magnetic steel.
  • the outer peripheral edge of the diaphragm is fixed on the upper surface of the basin frame.
  • the present invention has the following beneficial effects:
  • the speaker of the present invention adds an armature between the central magnetic steel and the diaphragm, and the armature is located in the voice coil and connected to the diaphragm. After the voice coil is energized, it cuts the magnetic field lines in the magnetic field to generate force. The energization of the ring produces S/N poles (S: South Pole, N: North Pole).
  • the speaker of the present invention can greatly improve the overall performance of the speaker and meet the design requirements when the speaker of the present invention is working; in addition, the armature of the present invention has better rigidity than the dome of the speaker in the related art. , Can improve the strength of the speaker of the present invention and enhance its stability.
  • Figure 1 is a schematic cross-sectional view of the present invention
  • Figure 2 is an exploded schematic diagram of the present invention.
  • Diaphragm 10. First flat part; 11. Folded ring part; 12. Second flat part; 2. Armature; 3. Voice coil; 30. Ring-shaped conductive part; 4. Central magnetic steel; 40. Magnetic steel; 41. Pole core; 5. Auxiliary components; 50. Basin frame; 51. Magnetic yoke.
  • connection should be understood in a broad sense.
  • they can be fixedly connected or detachably connected. Or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or a connection between two components.
  • connection should be understood in a broad sense.
  • they can be fixedly connected or detachably connected. Or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or a connection between two components.
  • the speaker of this embodiment is mainly composed of a diaphragm 1, an auxiliary component 5, a central magnet 4, a voice coil 3, and an armature 2.
  • the diaphragm 1 is composed of a first flat portion 10 located on the outside, a second flat portion 12 located on the inside, and a folding ring portion 11 located between the first flat portion 10 and the second flat portion 12.
  • the auxiliary assembly 5 is composed of a magnetic yoke 51 and a basin frame 50.
  • the magnetic yoke 51 is housed and fixed in the basin frame 50.
  • the central magnetic steel 4 is installed on the magnetic yoke 51, and the central magnetic steel 4 is located on the first part of the diaphragm 1.
  • the central magnetic steel 4 is composed of a magnetic steel 40 and a pole core 41 attached to the magnetic steel 40.
  • the voice coil 3 is fixed under the diaphragm 1, that is, the voice coil 3 is fixed under the second flat portion 12 of the diaphragm 1 for driving the diaphragm 1.
  • the outer peripheral edge of the diaphragm 1 is fixed on the upper surface of the basin frame 50, that is, the first flat portion 10 of the diaphragm 1 is set on the upper surface of the basin frame 50; the second flat portion 12 of the diaphragm 1 is set on the upper surface of the frame 50;
  • the armature 2 replacing the dome is located above the armature 2, that is, the armature 2 is located above the central magnet 4, the upper surface of the armature 2 is fixed on the diaphragm 1, and the armature 2 is located on the voice coil 3.
  • the side surface of the armature 2 is also fixed on the inner wall of the voice coil 3; the folding ring portion 11 of the diaphragm 1 is recessed downward.
  • the voice coil 3 is at least partially suspended in the magnetic field, so that when the voice coil 3 is energized, the magnetic field lines are cut in the magnetic field to generate up and down forces, and the voice coil 3 and the diaphragm 1
  • the second flat portion 12 is connected to make the diaphragm 1 vibrate under the driving of the voice coil 3 to generate driving force, so that the diaphragm 1 constantly vibrates and resonates with the surrounding air to produce sound.
  • the armature 2 when the voice coil 3 is energized to cut the magnetic field lines in the magnetic field to generate force, the armature 2 generates magnetism, so that the armature 2 generates S/N poles (S: south pole, N: north pole) due to the energization of the voice coil 3.
  • the polarity of 2 changes with the change of the current, so that the armature 2 can generate alternating attractive and repulsive forces with the central magnet 4, thereby increasing the BL value of the loudspeaker, thereby enabling the loudspeaker of the present invention to work.
  • the upper end of the voice coil 3 is provided with a ring-shaped conductive portion 30 along the circumferential direction, and the ring-shaped conductive portion 30 is fixedly connected to the voice coil 3, and the armature 2 is located on the ring-shaped conductive portion 30.
  • the inner side is fixed to the ring-shaped conductive part 30. That is, the armature 2 is located in the hollow area of the ring-shaped conductive portion 30, and the periphery of the armature 2 is fixedly connected to the ring-shaped conductive portion 30 of the voice coil 3.
  • the ring-shaped conductive portion 30 directly contacts the diaphragm 1, so that While the voice coil 3 drives the diaphragm 1 to vibrate, the armature 2 can vibrate synchronously with the diaphragm 1, so that the sound effect produced by the speaker is better.
  • the armature 2 of the present invention can provide a BL value while pushing the air to radiate energy, so as to improve the overall performance of the speaker of the present invention; and the armature 2 is relative to the ball. At the top, the armature 2 has better rigidity, which can improve the stability of the speaker of the present invention during operation.

Landscapes

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

Abstract

L'invention concerne un haut-parleur. Le haut-parleur comprend une membrane vibrante, une bobine mobile et un acier magnétique central, dans lequel la bobine mobile est fixée sous la membrane vibrante et est utilisée pour entraîner la membrane vibrante ; l'acier magnétique central est également situé sous la membrane vibrante et est situé dans la bobine mobile ; un champ magnétique est formé autour de l'acier magnétique central ; la bobine mobile est suspendue dans le champ magnétique, de sorte que lorsque la bobine mobile est excitée, la membrane vibrante est poussée par la force verticale générée au moyen de la bobine mobile coupant les lignes de champ magnétique dans le champ magnétique ; et une armature utilisée pour remplacer un dôme est disposée sous la membrane vibrante, l'armature est située au-dessus de l'acier magnétique central, l'armature peut générer des pôles S/N en raison de l'excitation de la bobine mobile, et les polarités changent avec le changement d'un courant, de sorte que l'armature et l'acier magnétique central peuvent générer une force d'attraction et une force de répulsion changeant alternativement, augmentant ainsi une valeur BL du haut-parleur, et améliorant ainsi la performance globale du haut-parleur et répondant aux exigences de conception.
PCT/CN2019/127990 2019-12-24 2019-12-24 Haut-parleur WO2021128004A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/127990 WO2021128004A1 (fr) 2019-12-24 2019-12-24 Haut-parleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/127990 WO2021128004A1 (fr) 2019-12-24 2019-12-24 Haut-parleur

Publications (1)

Publication Number Publication Date
WO2021128004A1 true WO2021128004A1 (fr) 2021-07-01

Family

ID=76575025

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/127990 WO2021128004A1 (fr) 2019-12-24 2019-12-24 Haut-parleur

Country Status (1)

Country Link
WO (1) WO2021128004A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101257734A (zh) * 2007-02-20 2008-09-03 桑尼奥荷兰有限公司 活动衔铁接收器
CN205545894U (zh) * 2015-12-07 2016-08-31 瑞声光电科技(常州)有限公司 扬声器
CN106878886A (zh) * 2017-03-18 2017-06-20 歌尔股份有限公司 动磁式扬声器
US20180367916A1 (en) * 2017-05-26 2018-12-20 Sonion Nederland B.V. Receiver assembly comprising an armature and a diaphragm
CN209105426U (zh) * 2019-01-07 2019-07-12 歌尔科技有限公司 扬声器
CN209390320U (zh) * 2018-12-30 2019-09-13 瑞声科技(新加坡)有限公司 一种音圈及应用该音圈的发声器件
CN209693049U (zh) * 2019-05-09 2019-11-26 深圳市信维声学科技有限公司 磁悬浮式微型扬声器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101257734A (zh) * 2007-02-20 2008-09-03 桑尼奥荷兰有限公司 活动衔铁接收器
CN205545894U (zh) * 2015-12-07 2016-08-31 瑞声光电科技(常州)有限公司 扬声器
CN106878886A (zh) * 2017-03-18 2017-06-20 歌尔股份有限公司 动磁式扬声器
US20180367916A1 (en) * 2017-05-26 2018-12-20 Sonion Nederland B.V. Receiver assembly comprising an armature and a diaphragm
CN209390320U (zh) * 2018-12-30 2019-09-13 瑞声科技(新加坡)有限公司 一种音圈及应用该音圈的发声器件
CN209105426U (zh) * 2019-01-07 2019-07-12 歌尔科技有限公司 扬声器
CN209693049U (zh) * 2019-05-09 2019-11-26 深圳市信维声学科技有限公司 磁悬浮式微型扬声器

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