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Moving magnet type loudspeaker

A loudspeaker and moving magnet technology, applied in the direction of sensors, loudspeakers, electrical components, etc., can solve the problems of weak vibration motor performance, achieve high space utilization, meet acoustic performance requirements, and facilitate adjustment

Active Publication Date: 2017-06-20
GOERTEK INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Limited by the vibration mass, the motor magnet cannot be too large, but a smaller motor magnet makes the performance of the vibration motor relatively weak

Method used

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  • Moving magnet type loudspeaker
  • Moving magnet type loudspeaker
  • Moving magnet type loudspeaker

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Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0039] like figure 1 and figure 2 As shown, a moving magnet loudspeaker includes a housing, the housing contains a diaphragm and a vibrator arranged parallel to the diaphragm, the vibrator includes a voice coil 34; a driving magnet 24 is fixed on the side of the diaphragm near the vibrator, and the voice coil 34 is energized to form an electromagnet, which interacts with the driving magnet 24 to drive the diaphragm to drive the sound; the side of the vibrator away from the diaphragm is provided with a motor magnet 26; the voice coil 34 is fixed on the basin frame 30, and the two ends of the basin...

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Abstract

The invention discloses a moving magnet type loudspeaker which comprises a casing which is internally provided with a diaphragm and a vibrator. The vibrator includes a voice coil. A driving magnet is fixed to the vibrator. The voice coil is fixed on a basin frame, and elastic support members are fixed to the two ends of the basin frame. One side of the vibrator far from the diaphragm is provided with a motor magnet. The magnetic induction lines of the motor magnet cut the voice coil, and the vibrator is pushed to vibrate along a horizontal direction. Since the motor magnet is arranged at the side of the vibrator far from the diaphragm, the vibration of the diaphragm is not affected by the motor magnet, and the size of the motor magnet can be as large as possible. When the voice coil passes alternating motor current, the magnetic induction lines of the motor magnet cut the energized voice coil, and the vibrator vibrates horizontally under the effect of Lorentz force. After the voice is energized, an electromagnet is formed, and the electromagnet and the driving magnet generate interaction force to drive the diaphragm to sound. Since the motor magnet and the diaphragm are at two sides of the vibrator, the diaphragm has enough vibration space and has a good loudspeaker function.

Description

technical field [0001] The invention relates to the technical field of electroacoustic products, in particular to a moving magnet loudspeaker. Background technique [0002] The loudspeaker is an important acoustic component of portable electronic equipment. It is used to complete the conversion between electrical signals and sound signals. It is an energy conversion device; the linear vibration motor is a kind of motor and an important part of portable electronic equipment. To realize the function of vibration reminder. With the development of portable electronic devices, the volume requirements are getting smaller and smaller. In order to meet the above requirements, two-in-one speakers have emerged. It is to package the speaker and the vibration motor into one casing to reduce the volume of the electronic equipment. Most of the existing two-in-one speakers are dynamic speakers, and the dynamic speakers usually assemble motor magnets on the diaphragm. Limited by the vibr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/06H04R9/02
CPCH04R9/025H04R9/06H04R2400/11
Inventor 汲鹏程祖峰磊许超
Owner GOERTEK INC
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