WO2017101063A1 - Ronfleur - Google Patents

Ronfleur Download PDF

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Publication number
WO2017101063A1
WO2017101063A1 PCT/CN2015/097689 CN2015097689W WO2017101063A1 WO 2017101063 A1 WO2017101063 A1 WO 2017101063A1 CN 2015097689 W CN2015097689 W CN 2015097689W WO 2017101063 A1 WO2017101063 A1 WO 2017101063A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic ring
magnetic
buzzer
casing
plastic
Prior art date
Application number
PCT/CN2015/097689
Other languages
English (en)
Chinese (zh)
Inventor
***
Original Assignee
***
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 *** filed Critical ***
Priority to PCT/CN2015/097689 priority Critical patent/WO2017101063A1/fr
Publication of WO2017101063A1 publication Critical patent/WO2017101063A1/fr

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means

Definitions

  • the invention relates to a buzzer.
  • the buzzer is an integrated electronic sounder.
  • the buzzer is mainly divided into two types: a piezoelectric buzzer and an electromagnetic buzzer.
  • the electromagnetic buzzer is composed of an oscillator, an electromagnetic coil, a magnet, a diaphragm, and a casing. After the power is turned on, the audio signal current generated by the oscillator passes through the electromagnetic coil, causing the electromagnetic coil to generate a magnetic field, and the vibrating diaphragm periodically vibrates and sounds under the interaction of the electromagnetic coil and the magnet.
  • the traditional multi-pole magnetic ring is made by bonding multiple magnetic segments, but it is difficult to process when making small micro-motors. At the same time, it is difficult to make the magnetic pole angle accurate due to the splicing of multiple magnetic segments, and at the same time It is difficult to achieve uniform quality of the entire magnetic ring, which makes the dynamic balance of the magnetic ring poor, which increases the vibration and noise of the motor and affects the performance of the motor.
  • the present invention provides a buzzer that causes a plastic magnetic ring in a buzzer to have a multi-stage magnetic field.
  • a buzzer including a casing, wherein the casing is provided with a circuit board, and the circuit board is coupled with a coil with a bracket, a plastic magnetic ring is disposed on the outer side of the coil, and a cover is disposed on the upper side of the plastic magnetic ring, and a diaphragm is disposed between the plastic magnetic ring and the cover;
  • the plastic magnetic ring comprises a magnetic ring body and at least two circular arc-shaped magnetic segments, and the magnetic ring body is magnetic
  • the integral structure of the material injection molding the magnetic segment is embedded in the magnetic ring body, and the magnetic segments are uniformly arranged in the magnetic ring body in mutually opposite polarities, and a through hole is formed in the center of the upper surface of the magnetic ring body. There are four small circular holes equally spaced in the circumference of the through hole.
  • the magnetic segments are 18 pairs.
  • a baffle is disposed between the cover and the outer casing.
  • the outer casing extends with a protrusion.
  • outer casing, the baffle and the casing are made of metal.
  • the invention has the beneficial effects that the structure of the buzzer is simplified and the installation is convenient by using the plastic magnetic ring.
  • the baffle is used to reflect the frequency response of the buzzer, thereby improving the sound of the buzzer, designing anti-static protrusions, and improving the life of the buzzer.
  • the magnetic ring formed by the magnetic material at one time ensures the concentricity and the uniformity of the mass of the magnetic ring, and at the same time, at least two pairs of magnetic segments are embedded in the molding, so that the produced magnetic ring has a multi-pole magnetic field.
  • Figure 1 is a schematic view showing the structure of a buzzer.
  • FIG. 2 is a schematic cross-sectional structural view of a plastic magnetic ring.
  • Figure 3 is a top plan view of a plastic magnetic ring.
  • outer casing 1, plastic magnetic ring, 21, magnetic ring body, 22, magnetic segment, 23, through hole, 24, round hole, 5, coil.
  • a buzzer includes a casing 1 , and a circuit board is disposed in the casing 1 , and the circuit board is equipped with a coil 5 with a bracket, and the coil is 5 is provided with a plastic magnetic ring 2 on the outer side, and a cover is arranged on the upper side of the plastic magnetic ring 2, and a diaphragm piece is arranged between the plastic magnetic ring 2 and the cover;
  • the plastic magnetic ring 2 comprises a magnetic ring body 21 and at least two circular arc-shaped magnetic segments 22, wherein the magnetic ring body 21 is an integral structure of an injection molded magnetic material, and the magnetic segment 22 is embedded in the magnetic ring.
  • the magnetic segments 22 are uniformly arranged in the magnetic ring body 21 in such a manner that the magnetic rings 22 have a through hole 23 at the center of the upper surface of the magnetic ring body 21, and the circumference of the through hole 23 is distributed with a circumference or the like.
  • Four small circular holes 24 are divided.
  • the magnetic segments 22 are 18 pairs.
  • a baffle is disposed between the casing and the outer casing 1.
  • the outer casing 1 extends with a protrusion.
  • the outer casing 1, the baffle and the casing are made of metal.
  • the structure of the buzzer is simplified and the installation is convenient.
  • the baffle is used to reflect the frequency response of the buzzer, thereby improving the sound of the buzzer, designing anti-static protrusions, and improving the life of the buzzer.
  • the magnetic ring formed by the magnetic material at one time ensures the concentricity and quality uniformity of the magnetic ring, and at the same time, at least two pairs of magnetic segments 22 are embedded in the molding, so that the produced magnetic ring has a multi-pole magnetic field.
  • the diaphragm vibrates and pushes the air to generate sound pressure.
  • the sound pressure first comes out of the casing, and after being reflected by the baffle, it goes out from the three edges of the baffle, and then in the outer casing 1 A common sound is formed in the cavity.
  • a baffle is provided between the casing and the outer casing 1. Further, since the buzzer is liable to generate static electricity, in order to guide the static electricity on the outer casing 1, the outer casing 1 has a projection extending thereto, and the projection 17 is grounded. Since the buzzer reflection requirement is relatively high, the outer casing 1, the cover and the baffle are made of metal, such as copper or aluminum.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Abstract

L'invention concerne un ronfleur qui comprend un boîtier (1) dans lequel est disposée une carte de circuit imprimé (PCB). Un enroulement (5) comportant un cadre est relié à la PCB. Un anneau magnétique moulé par injection (2) est disposé sur un côté externe de l'enroulement (5) et comprend un anneau magnétique (21) et au moins deux segments d'aimant en arc (22). L'anneau magnétique (21) est une structure intégrée formée par moulage par injection d'un matériau magnétique. Les segments d'aimant (22) sont incorporés dans l'anneau magnétique (21) et disposés uniformément dans l'anneau magnétique (21) selon des polarités alternées. Un trou traversant (23) est situé au centre d'une surface supérieure de l'anneau magnétique (21). Quatre petits trous (24) sont répartis uniformément autour du périmètre du trou traversant (23). L'anneau magnétique formé à l'aide de matériaux magnétiques et d'une technique de moulage à passage unique assure la concentricité de ce dernier et l'uniformité de qualité, et incorpore au moins deux segments d'aimant pendant le moulage par injection, permettant d'obtenir l'anneau magnétique ayant un champ magnétique à polarités multiples.
PCT/CN2015/097689 2015-12-17 2015-12-17 Ronfleur WO2017101063A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/097689 WO2017101063A1 (fr) 2015-12-17 2015-12-17 Ronfleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/097689 WO2017101063A1 (fr) 2015-12-17 2015-12-17 Ronfleur

Publications (1)

Publication Number Publication Date
WO2017101063A1 true WO2017101063A1 (fr) 2017-06-22

Family

ID=59055438

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/097689 WO2017101063A1 (fr) 2015-12-17 2015-12-17 Ronfleur

Country Status (1)

Country Link
WO (1) WO2017101063A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112700760A (zh) * 2020-12-23 2021-04-23 新沂市承翔电子有限公司 一种降噪强音电子蜂鸣器及其控制***和控制方法
CN113744710A (zh) * 2021-08-16 2021-12-03 江苏鑫长隆机电有限公司 一种仪表设备用磁吸式蜂鸣器的发声调节装置及其调节方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4050066A (en) * 1975-10-09 1977-09-20 Kabushiki Kaisha Seikosha Buzzer
JPS5975799A (ja) * 1982-10-25 1984-04-28 Audio Technica Corp 電気音響変換器
CN1324067A (zh) * 2000-05-17 2001-11-28 星精密株式会社 电声换能器
CN1489879A (zh) * 2001-03-09 2004-04-14 电声变换器
CN201251921Y (zh) * 2008-08-20 2009-06-03 瑞声声学科技(深圳)有限公司 电磁式讯响器
CN201270147Y (zh) * 2008-07-29 2009-07-08 方晓洁 蜂鸣器
CN104538014A (zh) * 2014-12-18 2015-04-22 常州超音电子有限公司 电磁式蜂鸣器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4050066A (en) * 1975-10-09 1977-09-20 Kabushiki Kaisha Seikosha Buzzer
JPS5975799A (ja) * 1982-10-25 1984-04-28 Audio Technica Corp 電気音響変換器
CN1324067A (zh) * 2000-05-17 2001-11-28 星精密株式会社 电声换能器
CN1489879A (zh) * 2001-03-09 2004-04-14 电声变换器
CN201270147Y (zh) * 2008-07-29 2009-07-08 方晓洁 蜂鸣器
CN201251921Y (zh) * 2008-08-20 2009-06-03 瑞声声学科技(深圳)有限公司 电磁式讯响器
CN104538014A (zh) * 2014-12-18 2015-04-22 常州超音电子有限公司 电磁式蜂鸣器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112700760A (zh) * 2020-12-23 2021-04-23 新沂市承翔电子有限公司 一种降噪强音电子蜂鸣器及其控制***和控制方法
CN113744710A (zh) * 2021-08-16 2021-12-03 江苏鑫长隆机电有限公司 一种仪表设备用磁吸式蜂鸣器的发声调节装置及其调节方法

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